mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
Merge branches 'thermal-core-fix', 'thermal-soc' and 'thermal-int340x' into next
This commit is contained in:
commit
2707dbd09a
@ -5,17 +5,9 @@ Required properties:
|
||||
- compatible: Should be set to one of the following:
|
||||
marvell,armada370-thermal
|
||||
marvell,armada375-thermal
|
||||
marvell,armada375-z1-thermal
|
||||
marvell,armada380-thermal
|
||||
marvell,armadaxp-thermal
|
||||
|
||||
Note: As the name suggests, "marvell,armada375-z1-thermal"
|
||||
applies for the SoC Z1 stepping only. On such stepping
|
||||
some quirks need to be done and the register offset differs
|
||||
from the one in the A0 stepping.
|
||||
The operating system may auto-detect the SoC stepping and
|
||||
update the compatible and register offsets at runtime.
|
||||
|
||||
- reg: Device's register space.
|
||||
Two entries are expected, see the examples below.
|
||||
The first one is required for the sensor register;
|
||||
|
@ -0,0 +1,68 @@
|
||||
* Temperature Sensor ADC (TSADC) on rockchip SoCs
|
||||
|
||||
Required properties:
|
||||
- compatible : "rockchip,rk3288-tsadc"
|
||||
- reg : physical base address of the controller and length of memory mapped
|
||||
region.
|
||||
- interrupts : The interrupt number to the cpu. The interrupt specifier format
|
||||
depends on the interrupt controller.
|
||||
- clocks : Must contain an entry for each entry in clock-names.
|
||||
- clock-names : Shall be "tsadc" for the converter-clock, and "apb_pclk" for
|
||||
the peripheral clock.
|
||||
- resets : Must contain an entry for each entry in reset-names.
|
||||
See ../reset/reset.txt for details.
|
||||
- reset-names : Must include the name "tsadc-apb".
|
||||
- #thermal-sensor-cells : Should be 1. See ./thermal.txt for a description.
|
||||
- rockchip,hw-tshut-temp : The hardware-controlled shutdown temperature value.
|
||||
- rockchip,hw-tshut-mode : The hardware-controlled shutdown mode 0:CRU 1:GPIO.
|
||||
- rockchip,hw-tshut-polarity : The hardware-controlled active polarity 0:LOW
|
||||
1:HIGH.
|
||||
|
||||
Exiample:
|
||||
tsadc: tsadc@ff280000 {
|
||||
compatible = "rockchip,rk3288-tsadc";
|
||||
reg = <0xff280000 0x100>;
|
||||
interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
|
||||
clocks = <&cru SCLK_TSADC>, <&cru PCLK_TSADC>;
|
||||
clock-names = "tsadc", "apb_pclk";
|
||||
resets = <&cru SRST_TSADC>;
|
||||
reset-names = "tsadc-apb";
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&otp_out>;
|
||||
#thermal-sensor-cells = <1>;
|
||||
rockchip,hw-tshut-temp = <95000>;
|
||||
rockchip,hw-tshut-mode = <0>;
|
||||
rockchip,hw-tshut-polarity = <0>;
|
||||
};
|
||||
|
||||
Example: referring to thermal sensors:
|
||||
thermal-zones {
|
||||
cpu_thermal: cpu_thermal {
|
||||
polling-delay-passive = <1000>; /* milliseconds */
|
||||
polling-delay = <5000>; /* milliseconds */
|
||||
|
||||
/* sensor ID */
|
||||
thermal-sensors = <&tsadc 1>;
|
||||
|
||||
trips {
|
||||
cpu_alert0: cpu_alert {
|
||||
temperature = <70000>; /* millicelsius */
|
||||
hysteresis = <2000>; /* millicelsius */
|
||||
type = "passive";
|
||||
};
|
||||
cpu_crit: cpu_crit {
|
||||
temperature = <90000>; /* millicelsius */
|
||||
hysteresis = <2000>; /* millicelsius */
|
||||
type = "critical";
|
||||
};
|
||||
};
|
||||
|
||||
cooling-maps {
|
||||
map0 {
|
||||
trip = <&cpu_alert0>;
|
||||
cooling-device =
|
||||
<&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
|
||||
};
|
||||
};
|
||||
};
|
||||
};
|
53
Documentation/devicetree/bindings/thermal/tegra-soctherm.txt
Normal file
53
Documentation/devicetree/bindings/thermal/tegra-soctherm.txt
Normal file
@ -0,0 +1,53 @@
|
||||
Tegra124 SOCTHERM thermal management system
|
||||
|
||||
The SOCTHERM IP block contains thermal sensors, support for polled
|
||||
or interrupt-based thermal monitoring, CPU and GPU throttling based
|
||||
on temperature trip points, and handling external overcurrent
|
||||
notifications. It is also used to manage emergency shutdown in an
|
||||
overheating situation.
|
||||
|
||||
Required properties :
|
||||
- compatible : "nvidia,tegra124-soctherm".
|
||||
- reg : Should contain 1 entry:
|
||||
- SOCTHERM register set
|
||||
- interrupts : Defines the interrupt used by SOCTHERM
|
||||
- clocks : Must contain an entry for each entry in clock-names.
|
||||
See ../clocks/clock-bindings.txt for details.
|
||||
- clock-names : Must include the following entries:
|
||||
- tsensor
|
||||
- soctherm
|
||||
- resets : Must contain an entry for each entry in reset-names.
|
||||
See ../reset/reset.txt for details.
|
||||
- reset-names : Must include the following entries:
|
||||
- soctherm
|
||||
- #thermal-sensor-cells : Should be 1. See ./thermal.txt for a description
|
||||
of this property. See <dt-bindings/thermal/tegra124-soctherm.h> for a
|
||||
list of valid values when referring to thermal sensors.
|
||||
|
||||
|
||||
Example :
|
||||
|
||||
soctherm@0,700e2000 {
|
||||
compatible = "nvidia,tegra124-soctherm";
|
||||
reg = <0x0 0x700e2000 0x0 0x1000>;
|
||||
interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
|
||||
clocks = <&tegra_car TEGRA124_CLK_TSENSOR>,
|
||||
<&tegra_car TEGRA124_CLK_SOC_THERM>;
|
||||
clock-names = "tsensor", "soctherm";
|
||||
resets = <&tegra_car 78>;
|
||||
reset-names = "soctherm";
|
||||
|
||||
#thermal-sensor-cells = <1>;
|
||||
};
|
||||
|
||||
Example: referring to thermal sensors :
|
||||
|
||||
thermal-zones {
|
||||
cpu {
|
||||
polling-delay-passive = <1000>;
|
||||
polling-delay = <1000>;
|
||||
|
||||
thermal-sensors =
|
||||
<&soctherm TEGRA124_SOCTHERM_SENSOR_CPU>;
|
||||
};
|
||||
};
|
@ -1942,4 +1942,48 @@
|
||||
<&tegra_car TEGRA124_CLK_EXTERN1>;
|
||||
clock-names = "pll_a", "pll_a_out0", "mclk";
|
||||
};
|
||||
|
||||
thermal-zones {
|
||||
cpu {
|
||||
trips {
|
||||
trip@0 {
|
||||
temperature = <101000>;
|
||||
hysteresis = <0>;
|
||||
type = "critical";
|
||||
};
|
||||
};
|
||||
|
||||
cooling-maps {
|
||||
/* There are currently no cooling maps because there are no cooling devices */
|
||||
};
|
||||
};
|
||||
|
||||
mem {
|
||||
trips {
|
||||
trip@0 {
|
||||
temperature = <101000>;
|
||||
hysteresis = <0>;
|
||||
type = "critical";
|
||||
};
|
||||
};
|
||||
|
||||
cooling-maps {
|
||||
/* There are currently no cooling maps because there are no cooling devices */
|
||||
};
|
||||
};
|
||||
|
||||
gpu {
|
||||
trips {
|
||||
trip@0 {
|
||||
temperature = <101000>;
|
||||
hysteresis = <0>;
|
||||
type = "critical";
|
||||
};
|
||||
};
|
||||
|
||||
cooling-maps {
|
||||
/* There are currently no cooling maps because there are no cooling devices */
|
||||
};
|
||||
};
|
||||
};
|
||||
};
|
||||
|
@ -3,6 +3,7 @@
|
||||
#include <dt-bindings/pinctrl/pinctrl-tegra.h>
|
||||
#include <dt-bindings/pinctrl/pinctrl-tegra-xusb.h>
|
||||
#include <dt-bindings/interrupt-controller/arm-gic.h>
|
||||
#include <dt-bindings/thermal/tegra124-soctherm.h>
|
||||
|
||||
#include "skeleton.dtsi"
|
||||
|
||||
@ -640,6 +641,18 @@
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
soctherm: thermal-sensor@0,700e2000 {
|
||||
compatible = "nvidia,tegra124-soctherm";
|
||||
reg = <0x0 0x700e2000 0x0 0x1000>;
|
||||
interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
|
||||
clocks = <&tegra_car TEGRA124_CLK_TSENSOR>,
|
||||
<&tegra_car TEGRA124_CLK_SOC_THERM>;
|
||||
clock-names = "tsensor", "soctherm";
|
||||
resets = <&tegra_car 78>;
|
||||
reset-names = "soctherm";
|
||||
#thermal-sensor-cells = <1>;
|
||||
};
|
||||
|
||||
ahub@0,70300000 {
|
||||
compatible = "nvidia,tegra124-ahub";
|
||||
reg = <0x0 0x70300000 0x0 0x200>,
|
||||
@ -881,6 +894,40 @@
|
||||
};
|
||||
};
|
||||
|
||||
thermal-zones {
|
||||
cpu {
|
||||
polling-delay-passive = <1000>;
|
||||
polling-delay = <1000>;
|
||||
|
||||
thermal-sensors =
|
||||
<&soctherm TEGRA124_SOCTHERM_SENSOR_CPU>;
|
||||
};
|
||||
|
||||
mem {
|
||||
polling-delay-passive = <1000>;
|
||||
polling-delay = <1000>;
|
||||
|
||||
thermal-sensors =
|
||||
<&soctherm TEGRA124_SOCTHERM_SENSOR_MEM>;
|
||||
};
|
||||
|
||||
gpu {
|
||||
polling-delay-passive = <1000>;
|
||||
polling-delay = <1000>;
|
||||
|
||||
thermal-sensors =
|
||||
<&soctherm TEGRA124_SOCTHERM_SENSOR_GPU>;
|
||||
};
|
||||
|
||||
pllx {
|
||||
polling-delay-passive = <1000>;
|
||||
polling-delay = <1000>;
|
||||
|
||||
thermal-sensors =
|
||||
<&soctherm TEGRA124_SOCTHERM_SENSOR_PLLX>;
|
||||
};
|
||||
};
|
||||
|
||||
timer {
|
||||
compatible = "arm,armv7-timer";
|
||||
interrupts = <GIC_PPI 13
|
||||
|
@ -176,6 +176,10 @@ static struct attribute *lm75_attrs[] = {
|
||||
};
|
||||
ATTRIBUTE_GROUPS(lm75);
|
||||
|
||||
static const struct thermal_zone_of_device_ops lm75_of_thermal_ops = {
|
||||
.get_temp = lm75_read_temp,
|
||||
};
|
||||
|
||||
/*-----------------------------------------------------------------------*/
|
||||
|
||||
/* device probe and removal */
|
||||
@ -291,10 +295,9 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
|
||||
if (IS_ERR(data->hwmon_dev))
|
||||
return PTR_ERR(data->hwmon_dev);
|
||||
|
||||
data->tz = thermal_zone_of_sensor_register(data->hwmon_dev,
|
||||
0,
|
||||
data->tz = thermal_zone_of_sensor_register(data->hwmon_dev, 0,
|
||||
data->hwmon_dev,
|
||||
lm75_read_temp, NULL);
|
||||
&lm75_of_thermal_ops);
|
||||
if (IS_ERR(data->tz))
|
||||
data->tz = NULL;
|
||||
|
||||
|
@ -486,6 +486,10 @@ static const struct attribute_group ntc_attr_group = {
|
||||
.attrs = ntc_attributes,
|
||||
};
|
||||
|
||||
static const struct thermal_zone_of_device_ops ntc_of_thermal_ops = {
|
||||
.get_temp = ntc_read_temp,
|
||||
};
|
||||
|
||||
static int ntc_thermistor_probe(struct platform_device *pdev)
|
||||
{
|
||||
const struct of_device_id *of_id =
|
||||
@ -579,7 +583,7 @@ static int ntc_thermistor_probe(struct platform_device *pdev)
|
||||
pdev_id->name);
|
||||
|
||||
data->tz = thermal_zone_of_sensor_register(data->dev, 0, data->dev,
|
||||
ntc_read_temp, NULL);
|
||||
&ntc_of_thermal_ops);
|
||||
if (IS_ERR(data->tz)) {
|
||||
dev_dbg(&pdev->dev, "Failed to register to thermal fw.\n");
|
||||
data->tz = NULL;
|
||||
|
@ -158,6 +158,10 @@ ATTRIBUTE_GROUPS(tmp102);
|
||||
#define TMP102_CONFIG (TMP102_CONF_TM | TMP102_CONF_EM | TMP102_CONF_CR1)
|
||||
#define TMP102_CONFIG_RD_ONLY (TMP102_CONF_R0 | TMP102_CONF_R1 | TMP102_CONF_AL)
|
||||
|
||||
static const struct thermal_zone_of_device_ops tmp102_of_thermal_ops = {
|
||||
.get_temp = tmp102_read_temp,
|
||||
};
|
||||
|
||||
static int tmp102_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
@ -215,7 +219,7 @@ static int tmp102_probe(struct i2c_client *client,
|
||||
}
|
||||
tmp102->hwmon_dev = hwmon_dev;
|
||||
tmp102->tz = thermal_zone_of_sensor_register(hwmon_dev, 0, hwmon_dev,
|
||||
tmp102_read_temp, NULL);
|
||||
&tmp102_of_thermal_ops);
|
||||
if (IS_ERR(tmp102->tz))
|
||||
tmp102->tz = NULL;
|
||||
|
||||
|
@ -112,6 +112,18 @@ config CPU_THERMAL
|
||||
|
||||
If you want this support, you should say Y here.
|
||||
|
||||
config CLOCK_THERMAL
|
||||
bool "Generic clock cooling support"
|
||||
depends on COMMON_CLK
|
||||
depends on PM_OPP
|
||||
help
|
||||
This entry implements the generic clock cooling mechanism through
|
||||
frequency clipping. Typically used to cool off co-processors. The
|
||||
device that is configured to use this cooling mechanism will be
|
||||
controlled to reduce clock frequency whenever temperature is high.
|
||||
|
||||
If you want this support, you should say Y here.
|
||||
|
||||
config THERMAL_EMULATION
|
||||
bool "Thermal emulation mode support"
|
||||
help
|
||||
@ -143,6 +155,16 @@ config SPEAR_THERMAL
|
||||
Enable this to plug the SPEAr thermal sensor driver into the Linux
|
||||
thermal framework.
|
||||
|
||||
config ROCKCHIP_THERMAL
|
||||
tristate "Rockchip thermal driver"
|
||||
depends on ARCH_ROCKCHIP
|
||||
depends on RESET_CONTROLLER
|
||||
help
|
||||
Rockchip thermal driver provides support for Temperature sensor
|
||||
ADC (TS-ADC) found on Rockchip SoCs. It supports one critical
|
||||
trip point. Cpufreq is used as the cooling device and will throttle
|
||||
CPUs when the Temperature crosses the passive trip point.
|
||||
|
||||
config RCAR_THERMAL
|
||||
tristate "Renesas R-Car thermal driver"
|
||||
depends on ARCH_SHMOBILE || COMPILE_TEST
|
||||
@ -185,6 +207,16 @@ config ARMADA_THERMAL
|
||||
Enable this option if you want to have support for thermal management
|
||||
controller present in Armada 370 and Armada XP SoC.
|
||||
|
||||
config TEGRA_SOCTHERM
|
||||
tristate "Tegra SOCTHERM thermal management"
|
||||
depends on ARCH_TEGRA
|
||||
help
|
||||
Enable this option for integrated thermal management support on NVIDIA
|
||||
Tegra124 systems-on-chip. The driver supports four thermal zones
|
||||
(CPU, GPU, MEM, PLLX). Cooling devices can be bound to the thermal
|
||||
zones to manage temperatures. This option is also required for the
|
||||
emergency thermal reset (thermtrip) feature to function.
|
||||
|
||||
config DB8500_CPUFREQ_COOLING
|
||||
tristate "DB8500 cpufreq cooling"
|
||||
depends on ARCH_U8500
|
||||
|
@ -18,8 +18,12 @@ thermal_sys-$(CONFIG_THERMAL_GOV_USER_SPACE) += user_space.o
|
||||
# cpufreq cooling
|
||||
thermal_sys-$(CONFIG_CPU_THERMAL) += cpu_cooling.o
|
||||
|
||||
# clock cooling
|
||||
thermal_sys-$(CONFIG_CLOCK_THERMAL) += clock_cooling.o
|
||||
|
||||
# platform thermal drivers
|
||||
obj-$(CONFIG_SPEAR_THERMAL) += spear_thermal.o
|
||||
obj-$(CONFIG_ROCKCHIP_THERMAL) += rockchip_thermal.o
|
||||
obj-$(CONFIG_RCAR_THERMAL) += rcar_thermal.o
|
||||
obj-$(CONFIG_KIRKWOOD_THERMAL) += kirkwood_thermal.o
|
||||
obj-y += samsung/
|
||||
@ -34,3 +38,4 @@ obj-$(CONFIG_INTEL_SOC_DTS_THERMAL) += intel_soc_dts_thermal.o
|
||||
obj-$(CONFIG_TI_SOC_THERMAL) += ti-soc-thermal/
|
||||
obj-$(CONFIG_INT340X_THERMAL) += int340x_thermal/
|
||||
obj-$(CONFIG_ST_THERMAL) += st/
|
||||
obj-$(CONFIG_TEGRA_SOCTHERM) += tegra_soctherm.o
|
||||
|
@ -35,10 +35,6 @@
|
||||
#define PMU_TDC0_OTF_CAL_MASK (0x1 << 30)
|
||||
#define PMU_TDC0_START_CAL_MASK (0x1 << 25)
|
||||
|
||||
#define A375_Z1_CAL_RESET_LSB 0x8011e214
|
||||
#define A375_Z1_CAL_RESET_MSB 0x30a88019
|
||||
#define A375_Z1_WORKAROUND_BIT BIT(9)
|
||||
|
||||
#define A375_UNIT_CONTROL_SHIFT 27
|
||||
#define A375_UNIT_CONTROL_MASK 0x7
|
||||
#define A375_READOUT_INVERT BIT(15)
|
||||
@ -124,24 +120,12 @@ static void armada375_init_sensor(struct platform_device *pdev,
|
||||
struct armada_thermal_priv *priv)
|
||||
{
|
||||
unsigned long reg;
|
||||
bool quirk_needed =
|
||||
!!of_device_is_compatible(pdev->dev.of_node,
|
||||
"marvell,armada375-z1-thermal");
|
||||
|
||||
if (quirk_needed) {
|
||||
/* Ensure these registers have the default (reset) values */
|
||||
writel(A375_Z1_CAL_RESET_LSB, priv->control);
|
||||
writel(A375_Z1_CAL_RESET_MSB, priv->control + 0x4);
|
||||
}
|
||||
|
||||
reg = readl(priv->control + 4);
|
||||
reg &= ~(A375_UNIT_CONTROL_MASK << A375_UNIT_CONTROL_SHIFT);
|
||||
reg &= ~A375_READOUT_INVERT;
|
||||
reg &= ~A375_HW_RESETn;
|
||||
|
||||
if (quirk_needed)
|
||||
reg |= A375_Z1_WORKAROUND_BIT;
|
||||
|
||||
writel(reg, priv->control + 4);
|
||||
mdelay(20);
|
||||
|
||||
@ -259,10 +243,6 @@ static const struct of_device_id armada_thermal_id_table[] = {
|
||||
.compatible = "marvell,armada375-thermal",
|
||||
.data = &armada375_data,
|
||||
},
|
||||
{
|
||||
.compatible = "marvell,armada375-z1-thermal",
|
||||
.data = &armada375_data,
|
||||
},
|
||||
{
|
||||
.compatible = "marvell,armada380-thermal",
|
||||
.data = &armada380_data,
|
||||
|
485
drivers/thermal/clock_cooling.c
Normal file
485
drivers/thermal/clock_cooling.c
Normal file
@ -0,0 +1,485 @@
|
||||
/*
|
||||
* drivers/thermal/clock_cooling.c
|
||||
*
|
||||
* Copyright (C) 2014 Eduardo Valentin <edubezval@gmail.com>
|
||||
*
|
||||
* Copyright (C) 2013 Texas Instruments Inc.
|
||||
* Contact: Eduardo Valentin <eduardo.valentin@ti.com>
|
||||
*
|
||||
* Highly based on cpu_cooling.c.
|
||||
* Copyright (C) 2012 Samsung Electronics Co., Ltd(http://www.samsung.com)
|
||||
* Copyright (C) 2012 Amit Daniel <amit.kachhap@linaro.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; version 2 of the License.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but
|
||||
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*/
|
||||
#include <linux/clk.h>
|
||||
#include <linux/cpufreq.h>
|
||||
#include <linux/device.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/idr.h>
|
||||
#include <linux/mutex.h>
|
||||
#include <linux/pm_opp.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/thermal.h>
|
||||
#include <linux/clock_cooling.h>
|
||||
|
||||
/**
|
||||
* struct clock_cooling_device - data for cooling device with clock
|
||||
* @id: unique integer value corresponding to each clock_cooling_device
|
||||
* registered.
|
||||
* @dev: struct device pointer to the device being used to cool off using
|
||||
* clock frequencies.
|
||||
* @cdev: thermal_cooling_device pointer to keep track of the
|
||||
* registered cooling device.
|
||||
* @clk_rate_change_nb: reference to notifier block used to receive clock
|
||||
* rate changes.
|
||||
* @freq_table: frequency table used to keep track of available frequencies.
|
||||
* @clock_state: integer value representing the current state of clock
|
||||
* cooling devices.
|
||||
* @clock_val: integer value representing the absolute value of the clipped
|
||||
* frequency.
|
||||
* @clk: struct clk reference used to enforce clock limits.
|
||||
* @lock: mutex lock to protect this struct.
|
||||
*
|
||||
* This structure is required for keeping information of each
|
||||
* clock_cooling_device registered. In order to prevent corruption of this a
|
||||
* mutex @lock is used.
|
||||
*/
|
||||
struct clock_cooling_device {
|
||||
int id;
|
||||
struct device *dev;
|
||||
struct thermal_cooling_device *cdev;
|
||||
struct notifier_block clk_rate_change_nb;
|
||||
struct cpufreq_frequency_table *freq_table;
|
||||
unsigned long clock_state;
|
||||
unsigned long clock_val;
|
||||
struct clk *clk;
|
||||
struct mutex lock; /* lock to protect the content of this struct */
|
||||
};
|
||||
#define to_clock_cooling_device(x) \
|
||||
container_of(x, struct clock_cooling_device, clk_rate_change_nb)
|
||||
static DEFINE_IDR(clock_idr);
|
||||
static DEFINE_MUTEX(cooling_clock_lock);
|
||||
|
||||
/**
|
||||
* clock_cooling_get_idr - function to get an unique id.
|
||||
* @id: int * value generated by this function.
|
||||
*
|
||||
* This function will populate @id with an unique
|
||||
* id, using the idr API.
|
||||
*
|
||||
* Return: 0 on success, an error code on failure.
|
||||
*/
|
||||
static int clock_cooling_get_idr(int *id)
|
||||
{
|
||||
int ret;
|
||||
|
||||
mutex_lock(&cooling_clock_lock);
|
||||
ret = idr_alloc(&clock_idr, NULL, 0, 0, GFP_KERNEL);
|
||||
mutex_unlock(&cooling_clock_lock);
|
||||
if (unlikely(ret < 0))
|
||||
return ret;
|
||||
*id = ret;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* release_idr - function to free the unique id.
|
||||
* @id: int value representing the unique id.
|
||||
*/
|
||||
static void release_idr(int id)
|
||||
{
|
||||
mutex_lock(&cooling_clock_lock);
|
||||
idr_remove(&clock_idr, id);
|
||||
mutex_unlock(&cooling_clock_lock);
|
||||
}
|
||||
|
||||
/* Below code defines functions to be used for clock as cooling device */
|
||||
|
||||
enum clock_cooling_property {
|
||||
GET_LEVEL,
|
||||
GET_FREQ,
|
||||
GET_MAXL,
|
||||
};
|
||||
|
||||
/**
|
||||
* clock_cooling_get_property - fetch a property of interest for a give cpu.
|
||||
* @ccdev: clock cooling device reference
|
||||
* @input: query parameter
|
||||
* @output: query return
|
||||
* @property: type of query (frequency, level, max level)
|
||||
*
|
||||
* This is the common function to
|
||||
* 1. get maximum clock cooling states
|
||||
* 2. translate frequency to cooling state
|
||||
* 3. translate cooling state to frequency
|
||||
* Note that the code may be not in good shape
|
||||
* but it is written in this way in order to:
|
||||
* a) reduce duplicate code as most of the code can be shared.
|
||||
* b) make sure the logic is consistent when translating between
|
||||
* cooling states and frequencies.
|
||||
*
|
||||
* Return: 0 on success, -EINVAL when invalid parameters are passed.
|
||||
*/
|
||||
static int clock_cooling_get_property(struct clock_cooling_device *ccdev,
|
||||
unsigned long input,
|
||||
unsigned long *output,
|
||||
enum clock_cooling_property property)
|
||||
{
|
||||
int i;
|
||||
unsigned long max_level = 0, level = 0;
|
||||
unsigned int freq = CPUFREQ_ENTRY_INVALID;
|
||||
int descend = -1;
|
||||
struct cpufreq_frequency_table *pos, *table = ccdev->freq_table;
|
||||
|
||||
if (!output)
|
||||
return -EINVAL;
|
||||
|
||||
if (!table)
|
||||
return -EINVAL;
|
||||
|
||||
cpufreq_for_each_valid_entry(pos, table) {
|
||||
/* ignore duplicate entry */
|
||||
if (freq == pos->frequency)
|
||||
continue;
|
||||
|
||||
/* get the frequency order */
|
||||
if (freq != CPUFREQ_ENTRY_INVALID && descend == -1)
|
||||
descend = freq > pos->frequency;
|
||||
|
||||
freq = pos->frequency;
|
||||
max_level++;
|
||||
}
|
||||
|
||||
/* No valid cpu frequency entry */
|
||||
if (max_level == 0)
|
||||
return -EINVAL;
|
||||
|
||||
/* max_level is an index, not a counter */
|
||||
max_level--;
|
||||
|
||||
/* get max level */
|
||||
if (property == GET_MAXL) {
|
||||
*output = max_level;
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (property == GET_FREQ)
|
||||
level = descend ? input : (max_level - input);
|
||||
|
||||
i = 0;
|
||||
cpufreq_for_each_valid_entry(pos, table) {
|
||||
/* ignore duplicate entry */
|
||||
if (freq == pos->frequency)
|
||||
continue;
|
||||
|
||||
/* now we have a valid frequency entry */
|
||||
freq = pos->frequency;
|
||||
|
||||
if (property == GET_LEVEL && (unsigned int)input == freq) {
|
||||
/* get level by frequency */
|
||||
*output = descend ? i : (max_level - i);
|
||||
return 0;
|
||||
}
|
||||
if (property == GET_FREQ && level == i) {
|
||||
/* get frequency by level */
|
||||
*output = freq;
|
||||
return 0;
|
||||
}
|
||||
i++;
|
||||
}
|
||||
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/**
|
||||
* clock_cooling_get_level - return the cooling level of given clock cooling.
|
||||
* @cdev: reference of a thermal cooling device of used as clock cooling device
|
||||
* @freq: the frequency of interest
|
||||
*
|
||||
* This function will match the cooling level corresponding to the
|
||||
* requested @freq and return it.
|
||||
*
|
||||
* Return: The matched cooling level on success or THERMAL_CSTATE_INVALID
|
||||
* otherwise.
|
||||
*/
|
||||
unsigned long clock_cooling_get_level(struct thermal_cooling_device *cdev,
|
||||
unsigned long freq)
|
||||
{
|
||||
struct clock_cooling_device *ccdev = cdev->devdata;
|
||||
unsigned long val;
|
||||
|
||||
if (clock_cooling_get_property(ccdev, (unsigned long)freq, &val,
|
||||
GET_LEVEL))
|
||||
return THERMAL_CSTATE_INVALID;
|
||||
|
||||
return val;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(clock_cooling_get_level);
|
||||
|
||||
/**
|
||||
* clock_cooling_get_frequency - get the absolute value of frequency from level.
|
||||
* @ccdev: clock cooling device reference
|
||||
* @level: cooling level
|
||||
*
|
||||
* This function matches cooling level with frequency. Based on a cooling level
|
||||
* of frequency, equals cooling state of cpu cooling device, it will return
|
||||
* the corresponding frequency.
|
||||
* e.g level=0 --> 1st MAX FREQ, level=1 ---> 2nd MAX FREQ, .... etc
|
||||
*
|
||||
* Return: 0 on error, the corresponding frequency otherwise.
|
||||
*/
|
||||
static unsigned long
|
||||
clock_cooling_get_frequency(struct clock_cooling_device *ccdev,
|
||||
unsigned long level)
|
||||
{
|
||||
int ret = 0;
|
||||
unsigned long freq;
|
||||
|
||||
ret = clock_cooling_get_property(ccdev, level, &freq, GET_FREQ);
|
||||
if (ret)
|
||||
return 0;
|
||||
|
||||
return freq;
|
||||
}
|
||||
|
||||
/**
|
||||
* clock_cooling_apply - function to apply frequency clipping.
|
||||
* @ccdev: clock_cooling_device pointer containing frequency clipping data.
|
||||
* @cooling_state: value of the cooling state.
|
||||
*
|
||||
* Function used to make sure the clock layer is aware of current thermal
|
||||
* limits. The limits are applied by updating the clock rate in case it is
|
||||
* higher than the corresponding frequency based on the requested cooling_state.
|
||||
*
|
||||
* Return: 0 on success, an error code otherwise (-EINVAL in case wrong
|
||||
* cooling state).
|
||||
*/
|
||||
static int clock_cooling_apply(struct clock_cooling_device *ccdev,
|
||||
unsigned long cooling_state)
|
||||
{
|
||||
unsigned long clip_freq, cur_freq;
|
||||
int ret = 0;
|
||||
|
||||
/* Here we write the clipping */
|
||||
/* Check if the old cooling action is same as new cooling action */
|
||||
if (ccdev->clock_state == cooling_state)
|
||||
return 0;
|
||||
|
||||
clip_freq = clock_cooling_get_frequency(ccdev, cooling_state);
|
||||
if (!clip_freq)
|
||||
return -EINVAL;
|
||||
|
||||
cur_freq = clk_get_rate(ccdev->clk);
|
||||
|
||||
mutex_lock(&ccdev->lock);
|
||||
ccdev->clock_state = cooling_state;
|
||||
ccdev->clock_val = clip_freq;
|
||||
/* enforce clock level */
|
||||
if (cur_freq > clip_freq)
|
||||
ret = clk_set_rate(ccdev->clk, clip_freq);
|
||||
mutex_unlock(&ccdev->lock);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* clock_cooling_clock_notifier - notifier callback on clock rate changes.
|
||||
* @nb: struct notifier_block * with callback info.
|
||||
* @event: value showing clock event for which this function invoked.
|
||||
* @data: callback-specific data
|
||||
*
|
||||
* Callback to hijack the notification on clock transition.
|
||||
* Every time there is a clock change, we intercept all pre change events
|
||||
* and block the transition in case the new rate infringes thermal limits.
|
||||
*
|
||||
* Return: NOTIFY_DONE (success) or NOTIFY_BAD (new_rate > thermal limit).
|
||||
*/
|
||||
static int clock_cooling_clock_notifier(struct notifier_block *nb,
|
||||
unsigned long event, void *data)
|
||||
{
|
||||
struct clk_notifier_data *ndata = data;
|
||||
struct clock_cooling_device *ccdev = to_clock_cooling_device(nb);
|
||||
|
||||
switch (event) {
|
||||
case PRE_RATE_CHANGE:
|
||||
/*
|
||||
* checks on current state
|
||||
* TODO: current method is not best we can find as it
|
||||
* allows possibly voltage transitions, in case DVFS
|
||||
* layer is also hijacking clock pre notifications.
|
||||
*/
|
||||
if (ndata->new_rate > ccdev->clock_val)
|
||||
return NOTIFY_BAD;
|
||||
/* fall through */
|
||||
case POST_RATE_CHANGE:
|
||||
case ABORT_RATE_CHANGE:
|
||||
default:
|
||||
return NOTIFY_DONE;
|
||||
}
|
||||
}
|
||||
|
||||
/* clock cooling device thermal callback functions are defined below */
|
||||
|
||||
/**
|
||||
* clock_cooling_get_max_state - callback function to get the max cooling state.
|
||||
* @cdev: thermal cooling device pointer.
|
||||
* @state: fill this variable with the max cooling state.
|
||||
*
|
||||
* Callback for the thermal cooling device to return the clock
|
||||
* max cooling state.
|
||||
*
|
||||
* Return: 0 on success, an error code otherwise.
|
||||
*/
|
||||
static int clock_cooling_get_max_state(struct thermal_cooling_device *cdev,
|
||||
unsigned long *state)
|
||||
{
|
||||
struct clock_cooling_device *ccdev = cdev->devdata;
|
||||
unsigned long count = 0;
|
||||
int ret;
|
||||
|
||||
ret = clock_cooling_get_property(ccdev, 0, &count, GET_MAXL);
|
||||
if (!ret)
|
||||
*state = count;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* clock_cooling_get_cur_state - function to get the current cooling state.
|
||||
* @cdev: thermal cooling device pointer.
|
||||
* @state: fill this variable with the current cooling state.
|
||||
*
|
||||
* Callback for the thermal cooling device to return the clock
|
||||
* current cooling state.
|
||||
*
|
||||
* Return: 0 (success)
|
||||
*/
|
||||
static int clock_cooling_get_cur_state(struct thermal_cooling_device *cdev,
|
||||
unsigned long *state)
|
||||
{
|
||||
struct clock_cooling_device *ccdev = cdev->devdata;
|
||||
|
||||
*state = ccdev->clock_state;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* clock_cooling_set_cur_state - function to set the current cooling state.
|
||||
* @cdev: thermal cooling device pointer.
|
||||
* @state: set this variable to the current cooling state.
|
||||
*
|
||||
* Callback for the thermal cooling device to change the clock cooling
|
||||
* current cooling state.
|
||||
*
|
||||
* Return: 0 on success, an error code otherwise.
|
||||
*/
|
||||
static int clock_cooling_set_cur_state(struct thermal_cooling_device *cdev,
|
||||
unsigned long state)
|
||||
{
|
||||
struct clock_cooling_device *clock_device = cdev->devdata;
|
||||
|
||||
return clock_cooling_apply(clock_device, state);
|
||||
}
|
||||
|
||||
/* Bind clock callbacks to thermal cooling device ops */
|
||||
static struct thermal_cooling_device_ops const clock_cooling_ops = {
|
||||
.get_max_state = clock_cooling_get_max_state,
|
||||
.get_cur_state = clock_cooling_get_cur_state,
|
||||
.set_cur_state = clock_cooling_set_cur_state,
|
||||
};
|
||||
|
||||
/**
|
||||
* clock_cooling_register - function to create clock cooling device.
|
||||
* @dev: struct device pointer to the device used as clock cooling device.
|
||||
* @clock_name: string containing the clock used as cooling mechanism.
|
||||
*
|
||||
* This interface function registers the clock cooling device with the name
|
||||
* "thermal-clock-%x". The cooling device is based on clock frequencies.
|
||||
* The struct device is assumed to be capable of DVFS transitions.
|
||||
* The OPP layer is used to fetch and fill the available frequencies for
|
||||
* the referred device. The ordered frequency table is used to control
|
||||
* the clock cooling device cooling states and to limit clock transitions
|
||||
* based on the cooling state requested by the thermal framework.
|
||||
*
|
||||
* Return: a valid struct thermal_cooling_device pointer on success,
|
||||
* on failure, it returns a corresponding ERR_PTR().
|
||||
*/
|
||||
struct thermal_cooling_device *
|
||||
clock_cooling_register(struct device *dev, const char *clock_name)
|
||||
{
|
||||
struct thermal_cooling_device *cdev;
|
||||
struct clock_cooling_device *ccdev = NULL;
|
||||
char dev_name[THERMAL_NAME_LENGTH];
|
||||
int ret = 0;
|
||||
|
||||
ccdev = devm_kzalloc(dev, sizeof(*ccdev), GFP_KERNEL);
|
||||
if (!ccdev)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
|
||||
ccdev->dev = dev;
|
||||
ccdev->clk = devm_clk_get(dev, clock_name);
|
||||
if (IS_ERR(ccdev->clk))
|
||||
return ERR_CAST(ccdev->clk);
|
||||
|
||||
ret = clock_cooling_get_idr(&ccdev->id);
|
||||
if (ret)
|
||||
return ERR_PTR(-EINVAL);
|
||||
|
||||
snprintf(dev_name, sizeof(dev_name), "thermal-clock-%d", ccdev->id);
|
||||
|
||||
cdev = thermal_cooling_device_register(dev_name, ccdev,
|
||||
&clock_cooling_ops);
|
||||
if (IS_ERR(cdev)) {
|
||||
release_idr(ccdev->id);
|
||||
return ERR_PTR(-EINVAL);
|
||||
}
|
||||
ccdev->cdev = cdev;
|
||||
ccdev->clk_rate_change_nb.notifier_call = clock_cooling_clock_notifier;
|
||||
|
||||
/* Assuming someone has already filled the opp table for this device */
|
||||
ret = dev_pm_opp_init_cpufreq_table(dev, &ccdev->freq_table);
|
||||
if (ret) {
|
||||
release_idr(ccdev->id);
|
||||
return ERR_PTR(ret);
|
||||
}
|
||||
ccdev->clock_state = 0;
|
||||
ccdev->clock_val = clock_cooling_get_frequency(ccdev, 0);
|
||||
|
||||
clk_notifier_register(ccdev->clk, &ccdev->clk_rate_change_nb);
|
||||
|
||||
return cdev;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(clock_cooling_register);
|
||||
|
||||
/**
|
||||
* clock_cooling_unregister - function to remove clock cooling device.
|
||||
* @cdev: thermal cooling device pointer.
|
||||
*
|
||||
* This interface function unregisters the "thermal-clock-%x" cooling device.
|
||||
*/
|
||||
void clock_cooling_unregister(struct thermal_cooling_device *cdev)
|
||||
{
|
||||
struct clock_cooling_device *ccdev;
|
||||
|
||||
if (!cdev)
|
||||
return;
|
||||
|
||||
ccdev = cdev->devdata;
|
||||
|
||||
clk_notifier_unregister(ccdev->clk, &ccdev->clk_rate_change_nb);
|
||||
dev_pm_opp_free_cpufreq_table(ccdev->dev, &ccdev->freq_table);
|
||||
|
||||
thermal_cooling_device_unregister(ccdev->cdev);
|
||||
release_idr(ccdev->id);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(clock_cooling_unregister);
|
@ -131,6 +131,8 @@ int acpi_parse_trt(acpi_handle handle, int *trt_count, struct trt **trtp,
|
||||
pr_warn("Failed to get target ACPI device\n");
|
||||
}
|
||||
|
||||
result = 0;
|
||||
|
||||
*trtp = trts;
|
||||
/* don't count bad entries */
|
||||
*trt_count -= nr_bad_entries;
|
||||
@ -317,21 +319,21 @@ static long acpi_thermal_rel_ioctl(struct file *f, unsigned int cmd,
|
||||
{
|
||||
int ret = 0;
|
||||
unsigned long length = 0;
|
||||
unsigned long count = 0;
|
||||
int count = 0;
|
||||
char __user *arg = (void __user *)__arg;
|
||||
struct trt *trts;
|
||||
struct art *arts;
|
||||
|
||||
switch (cmd) {
|
||||
case ACPI_THERMAL_GET_TRT_COUNT:
|
||||
ret = acpi_parse_trt(acpi_thermal_rel_handle, (int *)&count,
|
||||
ret = acpi_parse_trt(acpi_thermal_rel_handle, &count,
|
||||
&trts, false);
|
||||
kfree(trts);
|
||||
if (!ret)
|
||||
return put_user(count, (unsigned long __user *)__arg);
|
||||
return ret;
|
||||
case ACPI_THERMAL_GET_TRT_LEN:
|
||||
ret = acpi_parse_trt(acpi_thermal_rel_handle, (int *)&count,
|
||||
ret = acpi_parse_trt(acpi_thermal_rel_handle, &count,
|
||||
&trts, false);
|
||||
kfree(trts);
|
||||
length = count * sizeof(union trt_object);
|
||||
@ -341,14 +343,14 @@ static long acpi_thermal_rel_ioctl(struct file *f, unsigned int cmd,
|
||||
case ACPI_THERMAL_GET_TRT:
|
||||
return fill_trt(arg);
|
||||
case ACPI_THERMAL_GET_ART_COUNT:
|
||||
ret = acpi_parse_art(acpi_thermal_rel_handle, (int *)&count,
|
||||
ret = acpi_parse_art(acpi_thermal_rel_handle, &count,
|
||||
&arts, false);
|
||||
kfree(arts);
|
||||
if (!ret)
|
||||
return put_user(count, (unsigned long __user *)__arg);
|
||||
return ret;
|
||||
case ACPI_THERMAL_GET_ART_LEN:
|
||||
ret = acpi_parse_art(acpi_thermal_rel_handle, (int *)&count,
|
||||
ret = acpi_parse_art(acpi_thermal_rel_handle, &count,
|
||||
&arts, false);
|
||||
kfree(arts);
|
||||
length = count * sizeof(union art_object);
|
||||
|
@ -43,6 +43,74 @@ struct int3400_thermal_priv {
|
||||
struct trt *trts;
|
||||
u8 uuid_bitmap;
|
||||
int rel_misc_dev_res;
|
||||
int current_uuid_index;
|
||||
};
|
||||
|
||||
static ssize_t available_uuids_show(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct platform_device *pdev = to_platform_device(dev);
|
||||
struct int3400_thermal_priv *priv = platform_get_drvdata(pdev);
|
||||
int i;
|
||||
int length = 0;
|
||||
|
||||
for (i = 0; i < INT3400_THERMAL_MAXIMUM_UUID; i++) {
|
||||
if (priv->uuid_bitmap & (1 << i))
|
||||
if (PAGE_SIZE - length > 0)
|
||||
length += snprintf(&buf[length],
|
||||
PAGE_SIZE - length,
|
||||
"%s\n",
|
||||
int3400_thermal_uuids[i]);
|
||||
}
|
||||
|
||||
return length;
|
||||
}
|
||||
|
||||
static ssize_t current_uuid_show(struct device *dev,
|
||||
struct device_attribute *devattr, char *buf)
|
||||
{
|
||||
struct platform_device *pdev = to_platform_device(dev);
|
||||
struct int3400_thermal_priv *priv = platform_get_drvdata(pdev);
|
||||
|
||||
if (priv->uuid_bitmap & (1 << priv->current_uuid_index))
|
||||
return sprintf(buf, "%s\n",
|
||||
int3400_thermal_uuids[priv->current_uuid_index]);
|
||||
else
|
||||
return sprintf(buf, "INVALID\n");
|
||||
}
|
||||
|
||||
static ssize_t current_uuid_store(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
struct platform_device *pdev = to_platform_device(dev);
|
||||
struct int3400_thermal_priv *priv = platform_get_drvdata(pdev);
|
||||
int i;
|
||||
|
||||
for (i = 0; i < INT3400_THERMAL_MAXIMUM_UUID; ++i) {
|
||||
if ((priv->uuid_bitmap & (1 << i)) &&
|
||||
!(strncmp(buf, int3400_thermal_uuids[i],
|
||||
sizeof(int3400_thermal_uuids[i]) - 1))) {
|
||||
priv->current_uuid_index = i;
|
||||
return count;
|
||||
}
|
||||
}
|
||||
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
static DEVICE_ATTR(current_uuid, 0644, current_uuid_show, current_uuid_store);
|
||||
static DEVICE_ATTR_RO(available_uuids);
|
||||
static struct attribute *uuid_attrs[] = {
|
||||
&dev_attr_available_uuids.attr,
|
||||
&dev_attr_current_uuid.attr,
|
||||
NULL
|
||||
};
|
||||
|
||||
static struct attribute_group uuid_attribute_group = {
|
||||
.attrs = uuid_attrs,
|
||||
.name = "uuids"
|
||||
};
|
||||
|
||||
static int int3400_thermal_get_uuids(struct int3400_thermal_priv *priv)
|
||||
@ -160,9 +228,9 @@ static int int3400_thermal_set_mode(struct thermal_zone_device *thermal,
|
||||
|
||||
if (enable != priv->mode) {
|
||||
priv->mode = enable;
|
||||
/* currently, only PASSIVE COOLING is supported */
|
||||
result = int3400_thermal_run_osc(priv->adev->handle,
|
||||
INT3400_THERMAL_PASSIVE_1, enable);
|
||||
priv->current_uuid_index,
|
||||
enable);
|
||||
}
|
||||
return result;
|
||||
}
|
||||
@ -223,7 +291,14 @@ static int int3400_thermal_probe(struct platform_device *pdev)
|
||||
priv->rel_misc_dev_res = acpi_thermal_rel_misc_device_add(
|
||||
priv->adev->handle);
|
||||
|
||||
result = sysfs_create_group(&pdev->dev.kobj, &uuid_attribute_group);
|
||||
if (result)
|
||||
goto free_zone;
|
||||
|
||||
return 0;
|
||||
|
||||
free_zone:
|
||||
thermal_zone_device_unregister(priv->thermal);
|
||||
free_trt:
|
||||
kfree(priv->trts);
|
||||
free_art:
|
||||
@ -240,6 +315,7 @@ static int int3400_thermal_remove(struct platform_device *pdev)
|
||||
if (!priv->rel_misc_dev_res)
|
||||
acpi_thermal_rel_misc_device_remove(priv->adev->handle);
|
||||
|
||||
sysfs_remove_group(&pdev->dev.kobj, &uuid_attribute_group);
|
||||
thermal_zone_device_unregister(priv->thermal);
|
||||
kfree(priv->trts);
|
||||
kfree(priv->arts);
|
||||
|
@ -293,8 +293,7 @@ static int int3403_sensor_add(struct int3403_priv *priv)
|
||||
return 0;
|
||||
|
||||
err_free_obj:
|
||||
if (obj->tzone)
|
||||
thermal_zone_device_unregister(obj->tzone);
|
||||
thermal_zone_device_unregister(obj->tzone);
|
||||
return result;
|
||||
}
|
||||
|
||||
@ -471,7 +470,6 @@ static struct platform_driver int3403_driver = {
|
||||
.remove = int3403_remove,
|
||||
.driver = {
|
||||
.name = "int3403 thermal",
|
||||
.owner = THIS_MODULE,
|
||||
.acpi_match_table = int3403_device_ids,
|
||||
},
|
||||
};
|
||||
|
@ -689,6 +689,7 @@ static const struct x86_cpu_id intel_powerclamp_ids[] = {
|
||||
{ X86_VENDOR_INTEL, 6, 0x3f},
|
||||
{ X86_VENDOR_INTEL, 6, 0x45},
|
||||
{ X86_VENDOR_INTEL, 6, 0x46},
|
||||
{ X86_VENDOR_INTEL, 6, 0x4c},
|
||||
{}
|
||||
};
|
||||
MODULE_DEVICE_TABLE(x86cpu, intel_powerclamp_ids);
|
||||
|
@ -360,6 +360,9 @@ static void proc_thermal_interrupt(void)
|
||||
u32 sticky_out;
|
||||
int status;
|
||||
u32 ptmc_out;
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&intr_notify_lock, flags);
|
||||
|
||||
/* Clear APIC interrupt */
|
||||
status = iosf_mbi_read(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_READ,
|
||||
@ -378,21 +381,20 @@ static void proc_thermal_interrupt(void)
|
||||
/* reset sticky bit */
|
||||
status = iosf_mbi_write(BT_MBI_UNIT_PMC, BT_MBI_BUNIT_WRITE,
|
||||
SOC_DTS_OFFSET_PTTSS, sticky_out);
|
||||
spin_unlock_irqrestore(&intr_notify_lock, flags);
|
||||
|
||||
for (i = 0; i < SOC_MAX_DTS_SENSORS; ++i) {
|
||||
pr_debug("TZD update for zone %d\n", i);
|
||||
thermal_zone_device_update(soc_dts[i]->tzone);
|
||||
}
|
||||
}
|
||||
} else
|
||||
spin_unlock_irqrestore(&intr_notify_lock, flags);
|
||||
|
||||
}
|
||||
|
||||
static irqreturn_t soc_irq_thread_fn(int irq, void *dev_data)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&intr_notify_lock, flags);
|
||||
proc_thermal_interrupt();
|
||||
spin_unlock_irqrestore(&intr_notify_lock, flags);
|
||||
pr_debug("proc_thermal_interrupt\n");
|
||||
|
||||
return IRQ_HANDLED;
|
||||
|
@ -30,26 +30,12 @@
|
||||
#include <linux/err.h>
|
||||
#include <linux/export.h>
|
||||
#include <linux/string.h>
|
||||
#include <linux/thermal.h>
|
||||
|
||||
#include "thermal_core.h"
|
||||
|
||||
/*** Private data structures to represent thermal device tree data ***/
|
||||
|
||||
/**
|
||||
* struct __thermal_trip - representation of a point in temperature domain
|
||||
* @np: pointer to struct device_node that this trip point was created from
|
||||
* @temperature: temperature value in miliCelsius
|
||||
* @hysteresis: relative hysteresis in miliCelsius
|
||||
* @type: trip point type
|
||||
*/
|
||||
|
||||
struct __thermal_trip {
|
||||
struct device_node *np;
|
||||
unsigned long int temperature;
|
||||
unsigned long int hysteresis;
|
||||
enum thermal_trip_type type;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct __thermal_bind_param - a match between trip and cooling device
|
||||
* @cooling_device: a pointer to identify the referred cooling device
|
||||
@ -77,8 +63,7 @@ struct __thermal_bind_params {
|
||||
* @num_tbps: number of thermal bind params
|
||||
* @tbps: an array of thermal bind params (0..num_tbps - 1)
|
||||
* @sensor_data: sensor private data used while reading temperature and trend
|
||||
* @get_temp: sensor callback to read temperature
|
||||
* @get_trend: sensor callback to read temperature trend
|
||||
* @ops: set of callbacks to handle the thermal zone based on DT
|
||||
*/
|
||||
|
||||
struct __thermal_zone {
|
||||
@ -88,7 +73,7 @@ struct __thermal_zone {
|
||||
|
||||
/* trip data */
|
||||
int ntrips;
|
||||
struct __thermal_trip *trips;
|
||||
struct thermal_trip *trips;
|
||||
|
||||
/* cooling binding data */
|
||||
int num_tbps;
|
||||
@ -96,8 +81,7 @@ struct __thermal_zone {
|
||||
|
||||
/* sensor interface */
|
||||
void *sensor_data;
|
||||
int (*get_temp)(void *, long *);
|
||||
int (*get_trend)(void *, long *);
|
||||
const struct thermal_zone_of_device_ops *ops;
|
||||
};
|
||||
|
||||
/*** DT thermal zone device callbacks ***/
|
||||
@ -107,10 +91,96 @@ static int of_thermal_get_temp(struct thermal_zone_device *tz,
|
||||
{
|
||||
struct __thermal_zone *data = tz->devdata;
|
||||
|
||||
if (!data->get_temp)
|
||||
if (!data->ops->get_temp)
|
||||
return -EINVAL;
|
||||
|
||||
return data->get_temp(data->sensor_data, temp);
|
||||
return data->ops->get_temp(data->sensor_data, temp);
|
||||
}
|
||||
|
||||
/**
|
||||
* of_thermal_get_ntrips - function to export number of available trip
|
||||
* points.
|
||||
* @tz: pointer to a thermal zone
|
||||
*
|
||||
* This function is a globally visible wrapper to get number of trip points
|
||||
* stored in the local struct __thermal_zone
|
||||
*
|
||||
* Return: number of available trip points, -ENODEV when data not available
|
||||
*/
|
||||
int of_thermal_get_ntrips(struct thermal_zone_device *tz)
|
||||
{
|
||||
struct __thermal_zone *data = tz->devdata;
|
||||
|
||||
if (!data || IS_ERR(data))
|
||||
return -ENODEV;
|
||||
|
||||
return data->ntrips;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(of_thermal_get_ntrips);
|
||||
|
||||
/**
|
||||
* of_thermal_is_trip_valid - function to check if trip point is valid
|
||||
*
|
||||
* @tz: pointer to a thermal zone
|
||||
* @trip: trip point to evaluate
|
||||
*
|
||||
* This function is responsible for checking if passed trip point is valid
|
||||
*
|
||||
* Return: true if trip point is valid, false otherwise
|
||||
*/
|
||||
bool of_thermal_is_trip_valid(struct thermal_zone_device *tz, int trip)
|
||||
{
|
||||
struct __thermal_zone *data = tz->devdata;
|
||||
|
||||
if (!data || trip >= data->ntrips || trip < 0)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(of_thermal_is_trip_valid);
|
||||
|
||||
/**
|
||||
* of_thermal_get_trip_points - function to get access to a globally exported
|
||||
* trip points
|
||||
*
|
||||
* @tz: pointer to a thermal zone
|
||||
*
|
||||
* This function provides a pointer to trip points table
|
||||
*
|
||||
* Return: pointer to trip points table, NULL otherwise
|
||||
*/
|
||||
const struct thermal_trip * const
|
||||
of_thermal_get_trip_points(struct thermal_zone_device *tz)
|
||||
{
|
||||
struct __thermal_zone *data = tz->devdata;
|
||||
|
||||
if (!data)
|
||||
return NULL;
|
||||
|
||||
return data->trips;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(of_thermal_get_trip_points);
|
||||
|
||||
/**
|
||||
* of_thermal_set_emul_temp - function to set emulated temperature
|
||||
*
|
||||
* @tz: pointer to a thermal zone
|
||||
* @temp: temperature to set
|
||||
*
|
||||
* This function gives the ability to set emulated value of temperature,
|
||||
* which is handy for debugging
|
||||
*
|
||||
* Return: zero on success, error code otherwise
|
||||
*/
|
||||
static int of_thermal_set_emul_temp(struct thermal_zone_device *tz,
|
||||
unsigned long temp)
|
||||
{
|
||||
struct __thermal_zone *data = tz->devdata;
|
||||
|
||||
if (!data->ops || !data->ops->set_emul_temp)
|
||||
return -EINVAL;
|
||||
|
||||
return data->ops->set_emul_temp(data->sensor_data, temp);
|
||||
}
|
||||
|
||||
static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
|
||||
@ -120,10 +190,10 @@ static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
|
||||
long dev_trend;
|
||||
int r;
|
||||
|
||||
if (!data->get_trend)
|
||||
if (!data->ops->get_trend)
|
||||
return -EINVAL;
|
||||
|
||||
r = data->get_trend(data->sensor_data, &dev_trend);
|
||||
r = data->ops->get_trend(data->sensor_data, &dev_trend);
|
||||
if (r)
|
||||
return r;
|
||||
|
||||
@ -324,8 +394,7 @@ static struct thermal_zone_device_ops of_thermal_ops = {
|
||||
static struct thermal_zone_device *
|
||||
thermal_zone_of_add_sensor(struct device_node *zone,
|
||||
struct device_node *sensor, void *data,
|
||||
int (*get_temp)(void *, long *),
|
||||
int (*get_trend)(void *, long *))
|
||||
const struct thermal_zone_of_device_ops *ops)
|
||||
{
|
||||
struct thermal_zone_device *tzd;
|
||||
struct __thermal_zone *tz;
|
||||
@ -336,13 +405,16 @@ thermal_zone_of_add_sensor(struct device_node *zone,
|
||||
|
||||
tz = tzd->devdata;
|
||||
|
||||
if (!ops)
|
||||
return ERR_PTR(-EINVAL);
|
||||
|
||||
mutex_lock(&tzd->lock);
|
||||
tz->get_temp = get_temp;
|
||||
tz->get_trend = get_trend;
|
||||
tz->ops = ops;
|
||||
tz->sensor_data = data;
|
||||
|
||||
tzd->ops->get_temp = of_thermal_get_temp;
|
||||
tzd->ops->get_trend = of_thermal_get_trend;
|
||||
tzd->ops->set_emul_temp = of_thermal_set_emul_temp;
|
||||
mutex_unlock(&tzd->lock);
|
||||
|
||||
return tzd;
|
||||
@ -356,8 +428,7 @@ thermal_zone_of_add_sensor(struct device_node *zone,
|
||||
* than one sensors
|
||||
* @data: a private pointer (owned by the caller) that will be passed
|
||||
* back, when a temperature reading is needed.
|
||||
* @get_temp: a pointer to a function that reads the sensor temperature.
|
||||
* @get_trend: a pointer to a function that reads the sensor temperature trend.
|
||||
* @ops: struct thermal_zone_of_device_ops *. Must contain at least .get_temp.
|
||||
*
|
||||
* This function will search the list of thermal zones described in device
|
||||
* tree and look for the zone that refer to the sensor device pointed by
|
||||
@ -382,9 +453,8 @@ thermal_zone_of_add_sensor(struct device_node *zone,
|
||||
* check the return value with help of IS_ERR() helper.
|
||||
*/
|
||||
struct thermal_zone_device *
|
||||
thermal_zone_of_sensor_register(struct device *dev, int sensor_id,
|
||||
void *data, int (*get_temp)(void *, long *),
|
||||
int (*get_trend)(void *, long *))
|
||||
thermal_zone_of_sensor_register(struct device *dev, int sensor_id, void *data,
|
||||
const struct thermal_zone_of_device_ops *ops)
|
||||
{
|
||||
struct device_node *np, *child, *sensor_np;
|
||||
struct thermal_zone_device *tzd = ERR_PTR(-ENODEV);
|
||||
@ -426,9 +496,7 @@ thermal_zone_of_sensor_register(struct device *dev, int sensor_id,
|
||||
|
||||
if (sensor_specs.np == sensor_np && id == sensor_id) {
|
||||
tzd = thermal_zone_of_add_sensor(child, sensor_np,
|
||||
data,
|
||||
get_temp,
|
||||
get_trend);
|
||||
data, ops);
|
||||
of_node_put(sensor_specs.np);
|
||||
of_node_put(child);
|
||||
goto exit;
|
||||
@ -475,9 +543,9 @@ void thermal_zone_of_sensor_unregister(struct device *dev,
|
||||
mutex_lock(&tzd->lock);
|
||||
tzd->ops->get_temp = NULL;
|
||||
tzd->ops->get_trend = NULL;
|
||||
tzd->ops->set_emul_temp = NULL;
|
||||
|
||||
tz->get_temp = NULL;
|
||||
tz->get_trend = NULL;
|
||||
tz->ops = NULL;
|
||||
tz->sensor_data = NULL;
|
||||
mutex_unlock(&tzd->lock);
|
||||
}
|
||||
@ -501,7 +569,7 @@ EXPORT_SYMBOL_GPL(thermal_zone_of_sensor_unregister);
|
||||
*/
|
||||
static int thermal_of_populate_bind_params(struct device_node *np,
|
||||
struct __thermal_bind_params *__tbp,
|
||||
struct __thermal_trip *trips,
|
||||
struct thermal_trip *trips,
|
||||
int ntrips)
|
||||
{
|
||||
struct of_phandle_args cooling_spec;
|
||||
@ -604,7 +672,7 @@ static int thermal_of_get_trip_type(struct device_node *np,
|
||||
* Return: 0 on success, proper error code otherwise
|
||||
*/
|
||||
static int thermal_of_populate_trip(struct device_node *np,
|
||||
struct __thermal_trip *trip)
|
||||
struct thermal_trip *trip)
|
||||
{
|
||||
int prop;
|
||||
int ret;
|
||||
|
693
drivers/thermal/rockchip_thermal.c
Normal file
693
drivers/thermal/rockchip_thermal.c
Normal file
@ -0,0 +1,693 @@
|
||||
/*
|
||||
* Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms and conditions of the GNU General Public License,
|
||||
* version 2, as published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope it will be useful, but WITHOUT
|
||||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
* more details.
|
||||
*/
|
||||
|
||||
#include <linux/clk.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/of_address.h>
|
||||
#include <linux/of_irq.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/reset.h>
|
||||
#include <linux/thermal.h>
|
||||
|
||||
/**
|
||||
* If the temperature over a period of time High,
|
||||
* the resulting TSHUT gave CRU module,let it reset the entire chip,
|
||||
* or via GPIO give PMIC.
|
||||
*/
|
||||
enum tshut_mode {
|
||||
TSHUT_MODE_CRU = 0,
|
||||
TSHUT_MODE_GPIO,
|
||||
};
|
||||
|
||||
/**
|
||||
* the system Temperature Sensors tshut(tshut) polarity
|
||||
* the bit 8 is tshut polarity.
|
||||
* 0: low active, 1: high active
|
||||
*/
|
||||
enum tshut_polarity {
|
||||
TSHUT_LOW_ACTIVE = 0,
|
||||
TSHUT_HIGH_ACTIVE,
|
||||
};
|
||||
|
||||
/**
|
||||
* The system has three Temperature Sensors. channel 0 is reserved,
|
||||
* channel 1 is for CPU, and channel 2 is for GPU.
|
||||
*/
|
||||
enum sensor_id {
|
||||
SENSOR_CPU = 1,
|
||||
SENSOR_GPU,
|
||||
};
|
||||
|
||||
struct rockchip_tsadc_chip {
|
||||
/* The hardware-controlled tshut property */
|
||||
long tshut_temp;
|
||||
enum tshut_mode tshut_mode;
|
||||
enum tshut_polarity tshut_polarity;
|
||||
|
||||
/* Chip-wide methods */
|
||||
void (*initialize)(void __iomem *reg, enum tshut_polarity p);
|
||||
void (*irq_ack)(void __iomem *reg);
|
||||
void (*control)(void __iomem *reg, bool on);
|
||||
|
||||
/* Per-sensor methods */
|
||||
int (*get_temp)(int chn, void __iomem *reg, long *temp);
|
||||
void (*set_tshut_temp)(int chn, void __iomem *reg, long temp);
|
||||
void (*set_tshut_mode)(int chn, void __iomem *reg, enum tshut_mode m);
|
||||
};
|
||||
|
||||
struct rockchip_thermal_sensor {
|
||||
struct rockchip_thermal_data *thermal;
|
||||
struct thermal_zone_device *tzd;
|
||||
enum sensor_id id;
|
||||
};
|
||||
|
||||
#define NUM_SENSORS 2 /* Ignore unused sensor 0 */
|
||||
|
||||
struct rockchip_thermal_data {
|
||||
const struct rockchip_tsadc_chip *chip;
|
||||
struct platform_device *pdev;
|
||||
struct reset_control *reset;
|
||||
|
||||
struct rockchip_thermal_sensor sensors[NUM_SENSORS];
|
||||
|
||||
struct clk *clk;
|
||||
struct clk *pclk;
|
||||
|
||||
void __iomem *regs;
|
||||
|
||||
long tshut_temp;
|
||||
enum tshut_mode tshut_mode;
|
||||
enum tshut_polarity tshut_polarity;
|
||||
};
|
||||
|
||||
/* TSADC V2 Sensor info define: */
|
||||
#define TSADCV2_AUTO_CON 0x04
|
||||
#define TSADCV2_INT_EN 0x08
|
||||
#define TSADCV2_INT_PD 0x0c
|
||||
#define TSADCV2_DATA(chn) (0x20 + (chn) * 0x04)
|
||||
#define TSADCV2_COMP_SHUT(chn) (0x40 + (chn) * 0x04)
|
||||
#define TSADCV2_HIGHT_INT_DEBOUNCE 0x60
|
||||
#define TSADCV2_HIGHT_TSHUT_DEBOUNCE 0x64
|
||||
#define TSADCV2_AUTO_PERIOD 0x68
|
||||
#define TSADCV2_AUTO_PERIOD_HT 0x6c
|
||||
|
||||
#define TSADCV2_AUTO_EN BIT(0)
|
||||
#define TSADCV2_AUTO_DISABLE ~BIT(0)
|
||||
#define TSADCV2_AUTO_SRC_EN(chn) BIT(4 + (chn))
|
||||
#define TSADCV2_AUTO_TSHUT_POLARITY_HIGH BIT(8)
|
||||
#define TSADCV2_AUTO_TSHUT_POLARITY_LOW ~BIT(8)
|
||||
|
||||
#define TSADCV2_INT_SRC_EN(chn) BIT(chn)
|
||||
#define TSADCV2_SHUT_2GPIO_SRC_EN(chn) BIT(4 + (chn))
|
||||
#define TSADCV2_SHUT_2CRU_SRC_EN(chn) BIT(8 + (chn))
|
||||
|
||||
#define TSADCV2_INT_PD_CLEAR ~BIT(8)
|
||||
|
||||
#define TSADCV2_DATA_MASK 0xfff
|
||||
#define TSADCV2_HIGHT_INT_DEBOUNCE_COUNT 4
|
||||
#define TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT 4
|
||||
#define TSADCV2_AUTO_PERIOD_TIME 250 /* msec */
|
||||
#define TSADCV2_AUTO_PERIOD_HT_TIME 50 /* msec */
|
||||
|
||||
struct tsadc_table {
|
||||
unsigned long code;
|
||||
long temp;
|
||||
};
|
||||
|
||||
static const struct tsadc_table v2_code_table[] = {
|
||||
{TSADCV2_DATA_MASK, -40000},
|
||||
{3800, -40000},
|
||||
{3792, -35000},
|
||||
{3783, -30000},
|
||||
{3774, -25000},
|
||||
{3765, -20000},
|
||||
{3756, -15000},
|
||||
{3747, -10000},
|
||||
{3737, -5000},
|
||||
{3728, 0},
|
||||
{3718, 5000},
|
||||
{3708, 10000},
|
||||
{3698, 15000},
|
||||
{3688, 20000},
|
||||
{3678, 25000},
|
||||
{3667, 30000},
|
||||
{3656, 35000},
|
||||
{3645, 40000},
|
||||
{3634, 45000},
|
||||
{3623, 50000},
|
||||
{3611, 55000},
|
||||
{3600, 60000},
|
||||
{3588, 65000},
|
||||
{3575, 70000},
|
||||
{3563, 75000},
|
||||
{3550, 80000},
|
||||
{3537, 85000},
|
||||
{3524, 90000},
|
||||
{3510, 95000},
|
||||
{3496, 100000},
|
||||
{3482, 105000},
|
||||
{3467, 110000},
|
||||
{3452, 115000},
|
||||
{3437, 120000},
|
||||
{3421, 125000},
|
||||
{0, 125000},
|
||||
};
|
||||
|
||||
static u32 rk_tsadcv2_temp_to_code(long temp)
|
||||
{
|
||||
int high, low, mid;
|
||||
|
||||
low = 0;
|
||||
high = ARRAY_SIZE(v2_code_table) - 1;
|
||||
mid = (high + low) / 2;
|
||||
|
||||
if (temp < v2_code_table[low].temp || temp > v2_code_table[high].temp)
|
||||
return 0;
|
||||
|
||||
while (low <= high) {
|
||||
if (temp == v2_code_table[mid].temp)
|
||||
return v2_code_table[mid].code;
|
||||
else if (temp < v2_code_table[mid].temp)
|
||||
high = mid - 1;
|
||||
else
|
||||
low = mid + 1;
|
||||
mid = (low + high) / 2;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static long rk_tsadcv2_code_to_temp(u32 code)
|
||||
{
|
||||
int high, low, mid;
|
||||
|
||||
low = 0;
|
||||
high = ARRAY_SIZE(v2_code_table) - 1;
|
||||
mid = (high + low) / 2;
|
||||
|
||||
if (code > v2_code_table[low].code || code < v2_code_table[high].code)
|
||||
return 125000; /* No code available, return max temperature */
|
||||
|
||||
while (low <= high) {
|
||||
if (code >= v2_code_table[mid].code && code <
|
||||
v2_code_table[mid - 1].code)
|
||||
return v2_code_table[mid].temp;
|
||||
else if (code < v2_code_table[mid].code)
|
||||
low = mid + 1;
|
||||
else
|
||||
high = mid - 1;
|
||||
mid = (low + high) / 2;
|
||||
}
|
||||
|
||||
return 125000;
|
||||
}
|
||||
|
||||
/**
|
||||
* rk_tsadcv2_initialize - initialize TASDC Controller
|
||||
* (1) Set TSADCV2_AUTO_PERIOD, configure the interleave between
|
||||
* every two accessing of TSADC in normal operation.
|
||||
* (2) Set TSADCV2_AUTO_PERIOD_HT, configure the interleave between
|
||||
* every two accessing of TSADC after the temperature is higher
|
||||
* than COM_SHUT or COM_INT.
|
||||
* (3) Set TSADCV2_HIGH_INT_DEBOUNCE and TSADC_HIGHT_TSHUT_DEBOUNCE,
|
||||
* if the temperature is higher than COMP_INT or COMP_SHUT for
|
||||
* "debounce" times, TSADC controller will generate interrupt or TSHUT.
|
||||
*/
|
||||
static void rk_tsadcv2_initialize(void __iomem *regs,
|
||||
enum tshut_polarity tshut_polarity)
|
||||
{
|
||||
if (tshut_polarity == TSHUT_HIGH_ACTIVE)
|
||||
writel_relaxed(0 | (TSADCV2_AUTO_TSHUT_POLARITY_HIGH),
|
||||
regs + TSADCV2_AUTO_CON);
|
||||
else
|
||||
writel_relaxed(0 | (TSADCV2_AUTO_TSHUT_POLARITY_LOW),
|
||||
regs + TSADCV2_AUTO_CON);
|
||||
|
||||
writel_relaxed(TSADCV2_AUTO_PERIOD_TIME, regs + TSADCV2_AUTO_PERIOD);
|
||||
writel_relaxed(TSADCV2_HIGHT_INT_DEBOUNCE_COUNT,
|
||||
regs + TSADCV2_HIGHT_INT_DEBOUNCE);
|
||||
writel_relaxed(TSADCV2_AUTO_PERIOD_HT_TIME,
|
||||
regs + TSADCV2_AUTO_PERIOD_HT);
|
||||
writel_relaxed(TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT,
|
||||
regs + TSADCV2_HIGHT_TSHUT_DEBOUNCE);
|
||||
}
|
||||
|
||||
static void rk_tsadcv2_irq_ack(void __iomem *regs)
|
||||
{
|
||||
u32 val;
|
||||
|
||||
val = readl_relaxed(regs + TSADCV2_INT_PD);
|
||||
writel_relaxed(val & TSADCV2_INT_PD_CLEAR, regs + TSADCV2_INT_PD);
|
||||
}
|
||||
|
||||
static void rk_tsadcv2_control(void __iomem *regs, bool enable)
|
||||
{
|
||||
u32 val;
|
||||
|
||||
val = readl_relaxed(regs + TSADCV2_AUTO_CON);
|
||||
if (enable)
|
||||
val |= TSADCV2_AUTO_EN;
|
||||
else
|
||||
val &= ~TSADCV2_AUTO_EN;
|
||||
|
||||
writel_relaxed(val, regs + TSADCV2_AUTO_CON);
|
||||
}
|
||||
|
||||
static int rk_tsadcv2_get_temp(int chn, void __iomem *regs, long *temp)
|
||||
{
|
||||
u32 val;
|
||||
|
||||
/* the A/D value of the channel last conversion need some time */
|
||||
val = readl_relaxed(regs + TSADCV2_DATA(chn));
|
||||
if (val == 0)
|
||||
return -EAGAIN;
|
||||
|
||||
*temp = rk_tsadcv2_code_to_temp(val);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void rk_tsadcv2_tshut_temp(int chn, void __iomem *regs, long temp)
|
||||
{
|
||||
u32 tshut_value, val;
|
||||
|
||||
tshut_value = rk_tsadcv2_temp_to_code(temp);
|
||||
writel_relaxed(tshut_value, regs + TSADCV2_COMP_SHUT(chn));
|
||||
|
||||
/* TSHUT will be valid */
|
||||
val = readl_relaxed(regs + TSADCV2_AUTO_CON);
|
||||
writel_relaxed(val | TSADCV2_AUTO_SRC_EN(chn), regs + TSADCV2_AUTO_CON);
|
||||
}
|
||||
|
||||
static void rk_tsadcv2_tshut_mode(int chn, void __iomem *regs,
|
||||
enum tshut_mode mode)
|
||||
{
|
||||
u32 val;
|
||||
|
||||
val = readl_relaxed(regs + TSADCV2_INT_EN);
|
||||
if (mode == TSHUT_MODE_GPIO) {
|
||||
val &= ~TSADCV2_SHUT_2CRU_SRC_EN(chn);
|
||||
val |= TSADCV2_SHUT_2GPIO_SRC_EN(chn);
|
||||
} else {
|
||||
val &= ~TSADCV2_SHUT_2GPIO_SRC_EN(chn);
|
||||
val |= TSADCV2_SHUT_2CRU_SRC_EN(chn);
|
||||
}
|
||||
|
||||
writel_relaxed(val, regs + TSADCV2_INT_EN);
|
||||
}
|
||||
|
||||
static const struct rockchip_tsadc_chip rk3288_tsadc_data = {
|
||||
.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
|
||||
.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
|
||||
.tshut_temp = 95000,
|
||||
|
||||
.initialize = rk_tsadcv2_initialize,
|
||||
.irq_ack = rk_tsadcv2_irq_ack,
|
||||
.control = rk_tsadcv2_control,
|
||||
.get_temp = rk_tsadcv2_get_temp,
|
||||
.set_tshut_temp = rk_tsadcv2_tshut_temp,
|
||||
.set_tshut_mode = rk_tsadcv2_tshut_mode,
|
||||
};
|
||||
|
||||
static const struct of_device_id of_rockchip_thermal_match[] = {
|
||||
{
|
||||
.compatible = "rockchip,rk3288-tsadc",
|
||||
.data = (void *)&rk3288_tsadc_data,
|
||||
},
|
||||
{ /* end */ },
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, of_rockchip_thermal_match);
|
||||
|
||||
static void
|
||||
rockchip_thermal_toggle_sensor(struct rockchip_thermal_sensor *sensor, bool on)
|
||||
{
|
||||
struct thermal_zone_device *tzd = sensor->tzd;
|
||||
|
||||
tzd->ops->set_mode(tzd,
|
||||
on ? THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED);
|
||||
}
|
||||
|
||||
static irqreturn_t rockchip_thermal_alarm_irq_thread(int irq, void *dev)
|
||||
{
|
||||
struct rockchip_thermal_data *thermal = dev;
|
||||
int i;
|
||||
|
||||
dev_dbg(&thermal->pdev->dev, "thermal alarm\n");
|
||||
|
||||
thermal->chip->irq_ack(thermal->regs);
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(thermal->sensors); i++)
|
||||
thermal_zone_device_update(thermal->sensors[i].tzd);
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static int rockchip_thermal_get_temp(void *_sensor, long *out_temp)
|
||||
{
|
||||
struct rockchip_thermal_sensor *sensor = _sensor;
|
||||
struct rockchip_thermal_data *thermal = sensor->thermal;
|
||||
const struct rockchip_tsadc_chip *tsadc = sensor->thermal->chip;
|
||||
int retval;
|
||||
|
||||
retval = tsadc->get_temp(sensor->id, thermal->regs, out_temp);
|
||||
dev_dbg(&thermal->pdev->dev, "sensor %d - temp: %ld, retval: %d\n",
|
||||
sensor->id, *out_temp, retval);
|
||||
|
||||
return retval;
|
||||
}
|
||||
|
||||
static const struct thermal_zone_of_device_ops rockchip_of_thermal_ops = {
|
||||
.get_temp = rockchip_thermal_get_temp,
|
||||
};
|
||||
|
||||
static int rockchip_configure_from_dt(struct device *dev,
|
||||
struct device_node *np,
|
||||
struct rockchip_thermal_data *thermal)
|
||||
{
|
||||
u32 shut_temp, tshut_mode, tshut_polarity;
|
||||
|
||||
if (of_property_read_u32(np, "rockchip,hw-tshut-temp", &shut_temp)) {
|
||||
dev_warn(dev,
|
||||
"Missing tshut temp property, using default %ld\n",
|
||||
thermal->chip->tshut_temp);
|
||||
thermal->tshut_temp = thermal->chip->tshut_temp;
|
||||
} else {
|
||||
thermal->tshut_temp = shut_temp;
|
||||
}
|
||||
|
||||
if (thermal->tshut_temp > INT_MAX) {
|
||||
dev_err(dev, "Invalid tshut temperature specified: %ld\n",
|
||||
thermal->tshut_temp);
|
||||
return -ERANGE;
|
||||
}
|
||||
|
||||
if (of_property_read_u32(np, "rockchip,hw-tshut-mode", &tshut_mode)) {
|
||||
dev_warn(dev,
|
||||
"Missing tshut mode property, using default (%s)\n",
|
||||
thermal->chip->tshut_mode == TSHUT_MODE_GPIO ?
|
||||
"gpio" : "cru");
|
||||
thermal->tshut_mode = thermal->chip->tshut_mode;
|
||||
} else {
|
||||
thermal->tshut_mode = tshut_mode;
|
||||
}
|
||||
|
||||
if (thermal->tshut_mode > 1) {
|
||||
dev_err(dev, "Invalid tshut mode specified: %d\n",
|
||||
thermal->tshut_mode);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (of_property_read_u32(np, "rockchip,hw-tshut-polarity",
|
||||
&tshut_polarity)) {
|
||||
dev_warn(dev,
|
||||
"Missing tshut-polarity property, using default (%s)\n",
|
||||
thermal->chip->tshut_polarity == TSHUT_LOW_ACTIVE ?
|
||||
"low" : "high");
|
||||
thermal->tshut_polarity = thermal->chip->tshut_polarity;
|
||||
} else {
|
||||
thermal->tshut_polarity = tshut_polarity;
|
||||
}
|
||||
|
||||
if (thermal->tshut_polarity > 1) {
|
||||
dev_err(dev, "Invalid tshut-polarity specified: %d\n",
|
||||
thermal->tshut_polarity);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
rockchip_thermal_register_sensor(struct platform_device *pdev,
|
||||
struct rockchip_thermal_data *thermal,
|
||||
struct rockchip_thermal_sensor *sensor,
|
||||
enum sensor_id id)
|
||||
{
|
||||
const struct rockchip_tsadc_chip *tsadc = thermal->chip;
|
||||
int error;
|
||||
|
||||
tsadc->set_tshut_mode(id, thermal->regs, thermal->tshut_mode);
|
||||
tsadc->set_tshut_temp(id, thermal->regs, thermal->tshut_temp);
|
||||
|
||||
sensor->thermal = thermal;
|
||||
sensor->id = id;
|
||||
sensor->tzd = thermal_zone_of_sensor_register(&pdev->dev, id, sensor,
|
||||
&rockchip_of_thermal_ops);
|
||||
if (IS_ERR(sensor->tzd)) {
|
||||
error = PTR_ERR(sensor->tzd);
|
||||
dev_err(&pdev->dev, "failed to register sensor %d: %d\n",
|
||||
id, error);
|
||||
return error;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Reset TSADC Controller, reset all tsadc registers.
|
||||
*/
|
||||
static void rockchip_thermal_reset_controller(struct reset_control *reset)
|
||||
{
|
||||
reset_control_assert(reset);
|
||||
usleep_range(10, 20);
|
||||
reset_control_deassert(reset);
|
||||
}
|
||||
|
||||
static int rockchip_thermal_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct device_node *np = pdev->dev.of_node;
|
||||
struct rockchip_thermal_data *thermal;
|
||||
const struct of_device_id *match;
|
||||
struct resource *res;
|
||||
int irq;
|
||||
int i;
|
||||
int error;
|
||||
|
||||
match = of_match_node(of_rockchip_thermal_match, np);
|
||||
if (!match)
|
||||
return -ENXIO;
|
||||
|
||||
irq = platform_get_irq(pdev, 0);
|
||||
if (irq < 0) {
|
||||
dev_err(&pdev->dev, "no irq resource?\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
thermal = devm_kzalloc(&pdev->dev, sizeof(struct rockchip_thermal_data),
|
||||
GFP_KERNEL);
|
||||
if (!thermal)
|
||||
return -ENOMEM;
|
||||
|
||||
thermal->pdev = pdev;
|
||||
|
||||
thermal->chip = (const struct rockchip_tsadc_chip *)match->data;
|
||||
if (!thermal->chip)
|
||||
return -EINVAL;
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
thermal->regs = devm_ioremap_resource(&pdev->dev, res);
|
||||
if (IS_ERR(thermal->regs))
|
||||
return PTR_ERR(thermal->regs);
|
||||
|
||||
thermal->reset = devm_reset_control_get(&pdev->dev, "tsadc-apb");
|
||||
if (IS_ERR(thermal->reset)) {
|
||||
error = PTR_ERR(thermal->reset);
|
||||
dev_err(&pdev->dev, "failed to get tsadc reset: %d\n", error);
|
||||
return error;
|
||||
}
|
||||
|
||||
thermal->clk = devm_clk_get(&pdev->dev, "tsadc");
|
||||
if (IS_ERR(thermal->clk)) {
|
||||
error = PTR_ERR(thermal->clk);
|
||||
dev_err(&pdev->dev, "failed to get tsadc clock: %d\n", error);
|
||||
return error;
|
||||
}
|
||||
|
||||
thermal->pclk = devm_clk_get(&pdev->dev, "apb_pclk");
|
||||
if (IS_ERR(thermal->pclk)) {
|
||||
error = PTR_ERR(thermal->clk);
|
||||
dev_err(&pdev->dev, "failed to get apb_pclk clock: %d\n",
|
||||
error);
|
||||
return error;
|
||||
}
|
||||
|
||||
error = clk_prepare_enable(thermal->clk);
|
||||
if (error) {
|
||||
dev_err(&pdev->dev, "failed to enable converter clock: %d\n",
|
||||
error);
|
||||
return error;
|
||||
}
|
||||
|
||||
error = clk_prepare_enable(thermal->pclk);
|
||||
if (error) {
|
||||
dev_err(&pdev->dev, "failed to enable pclk: %d\n", error);
|
||||
goto err_disable_clk;
|
||||
}
|
||||
|
||||
rockchip_thermal_reset_controller(thermal->reset);
|
||||
|
||||
error = rockchip_configure_from_dt(&pdev->dev, np, thermal);
|
||||
if (error) {
|
||||
dev_err(&pdev->dev, "failed to parse device tree data: %d\n",
|
||||
error);
|
||||
goto err_disable_pclk;
|
||||
}
|
||||
|
||||
thermal->chip->initialize(thermal->regs, thermal->tshut_polarity);
|
||||
|
||||
error = rockchip_thermal_register_sensor(pdev, thermal,
|
||||
&thermal->sensors[0],
|
||||
SENSOR_CPU);
|
||||
if (error) {
|
||||
dev_err(&pdev->dev,
|
||||
"failed to register CPU thermal sensor: %d\n", error);
|
||||
goto err_disable_pclk;
|
||||
}
|
||||
|
||||
error = rockchip_thermal_register_sensor(pdev, thermal,
|
||||
&thermal->sensors[1],
|
||||
SENSOR_GPU);
|
||||
if (error) {
|
||||
dev_err(&pdev->dev,
|
||||
"failed to register GPU thermal sensor: %d\n", error);
|
||||
goto err_unregister_cpu_sensor;
|
||||
}
|
||||
|
||||
error = devm_request_threaded_irq(&pdev->dev, irq, NULL,
|
||||
&rockchip_thermal_alarm_irq_thread,
|
||||
IRQF_ONESHOT,
|
||||
"rockchip_thermal", thermal);
|
||||
if (error) {
|
||||
dev_err(&pdev->dev,
|
||||
"failed to request tsadc irq: %d\n", error);
|
||||
goto err_unregister_gpu_sensor;
|
||||
}
|
||||
|
||||
thermal->chip->control(thermal->regs, true);
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(thermal->sensors); i++)
|
||||
rockchip_thermal_toggle_sensor(&thermal->sensors[i], true);
|
||||
|
||||
platform_set_drvdata(pdev, thermal);
|
||||
|
||||
return 0;
|
||||
|
||||
err_unregister_gpu_sensor:
|
||||
thermal_zone_of_sensor_unregister(&pdev->dev, thermal->sensors[1].tzd);
|
||||
err_unregister_cpu_sensor:
|
||||
thermal_zone_of_sensor_unregister(&pdev->dev, thermal->sensors[0].tzd);
|
||||
err_disable_pclk:
|
||||
clk_disable_unprepare(thermal->pclk);
|
||||
err_disable_clk:
|
||||
clk_disable_unprepare(thermal->clk);
|
||||
|
||||
return error;
|
||||
}
|
||||
|
||||
static int rockchip_thermal_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct rockchip_thermal_data *thermal = platform_get_drvdata(pdev);
|
||||
int i;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(thermal->sensors); i++) {
|
||||
struct rockchip_thermal_sensor *sensor = &thermal->sensors[i];
|
||||
|
||||
rockchip_thermal_toggle_sensor(sensor, false);
|
||||
thermal_zone_of_sensor_unregister(&pdev->dev, sensor->tzd);
|
||||
}
|
||||
|
||||
thermal->chip->control(thermal->regs, false);
|
||||
|
||||
clk_disable_unprepare(thermal->pclk);
|
||||
clk_disable_unprepare(thermal->clk);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __maybe_unused rockchip_thermal_suspend(struct device *dev)
|
||||
{
|
||||
struct platform_device *pdev = to_platform_device(dev);
|
||||
struct rockchip_thermal_data *thermal = platform_get_drvdata(pdev);
|
||||
int i;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(thermal->sensors); i++)
|
||||
rockchip_thermal_toggle_sensor(&thermal->sensors[i], false);
|
||||
|
||||
thermal->chip->control(thermal->regs, false);
|
||||
|
||||
clk_disable(thermal->pclk);
|
||||
clk_disable(thermal->clk);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __maybe_unused rockchip_thermal_resume(struct device *dev)
|
||||
{
|
||||
struct platform_device *pdev = to_platform_device(dev);
|
||||
struct rockchip_thermal_data *thermal = platform_get_drvdata(pdev);
|
||||
int i;
|
||||
int error;
|
||||
|
||||
error = clk_enable(thermal->clk);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
error = clk_enable(thermal->pclk);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
rockchip_thermal_reset_controller(thermal->reset);
|
||||
|
||||
thermal->chip->initialize(thermal->regs, thermal->tshut_polarity);
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(thermal->sensors); i++) {
|
||||
enum sensor_id id = thermal->sensors[i].id;
|
||||
|
||||
thermal->chip->set_tshut_mode(id, thermal->regs,
|
||||
thermal->tshut_mode);
|
||||
thermal->chip->set_tshut_temp(id, thermal->regs,
|
||||
thermal->tshut_temp);
|
||||
}
|
||||
|
||||
thermal->chip->control(thermal->regs, true);
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(thermal->sensors); i++)
|
||||
rockchip_thermal_toggle_sensor(&thermal->sensors[i], true);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static SIMPLE_DEV_PM_OPS(rockchip_thermal_pm_ops,
|
||||
rockchip_thermal_suspend, rockchip_thermal_resume);
|
||||
|
||||
static struct platform_driver rockchip_thermal_driver = {
|
||||
.driver = {
|
||||
.name = "rockchip-thermal",
|
||||
.owner = THIS_MODULE,
|
||||
.pm = &rockchip_thermal_pm_ops,
|
||||
.of_match_table = of_rockchip_thermal_match,
|
||||
},
|
||||
.probe = rockchip_thermal_probe,
|
||||
.remove = rockchip_thermal_remove,
|
||||
};
|
||||
|
||||
module_platform_driver(rockchip_thermal_driver);
|
||||
|
||||
MODULE_DESCRIPTION("ROCKCHIP THERMAL Driver");
|
||||
MODULE_AUTHOR("Rockchip, Inc.");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
MODULE_ALIAS("platform:rockchip-thermal");
|
@ -27,7 +27,6 @@
|
||||
#define SENSOR_NAME_LEN 16
|
||||
#define MAX_TRIP_COUNT 8
|
||||
#define MAX_COOLING_DEVICE 4
|
||||
#define MAX_TRIMINFO_CTRL_REG 2
|
||||
|
||||
#define ACTIVE_INTERVAL 500
|
||||
#define IDLE_INTERVAL 10000
|
||||
|
@ -33,7 +33,87 @@
|
||||
|
||||
#include "exynos_thermal_common.h"
|
||||
#include "exynos_tmu.h"
|
||||
#include "exynos_tmu_data.h"
|
||||
|
||||
/* Exynos generic registers */
|
||||
#define EXYNOS_TMU_REG_TRIMINFO 0x0
|
||||
#define EXYNOS_TMU_REG_CONTROL 0x20
|
||||
#define EXYNOS_TMU_REG_STATUS 0x28
|
||||
#define EXYNOS_TMU_REG_CURRENT_TEMP 0x40
|
||||
#define EXYNOS_TMU_REG_INTEN 0x70
|
||||
#define EXYNOS_TMU_REG_INTSTAT 0x74
|
||||
#define EXYNOS_TMU_REG_INTCLEAR 0x78
|
||||
|
||||
#define EXYNOS_TMU_TEMP_MASK 0xff
|
||||
#define EXYNOS_TMU_REF_VOLTAGE_SHIFT 24
|
||||
#define EXYNOS_TMU_REF_VOLTAGE_MASK 0x1f
|
||||
#define EXYNOS_TMU_BUF_SLOPE_SEL_MASK 0xf
|
||||
#define EXYNOS_TMU_BUF_SLOPE_SEL_SHIFT 8
|
||||
#define EXYNOS_TMU_CORE_EN_SHIFT 0
|
||||
|
||||
/* Exynos3250 specific registers */
|
||||
#define EXYNOS_TMU_TRIMINFO_CON1 0x10
|
||||
|
||||
/* Exynos4210 specific registers */
|
||||
#define EXYNOS4210_TMU_REG_THRESHOLD_TEMP 0x44
|
||||
#define EXYNOS4210_TMU_REG_TRIG_LEVEL0 0x50
|
||||
|
||||
/* Exynos5250, Exynos4412, Exynos3250 specific registers */
|
||||
#define EXYNOS_TMU_TRIMINFO_CON2 0x14
|
||||
#define EXYNOS_THD_TEMP_RISE 0x50
|
||||
#define EXYNOS_THD_TEMP_FALL 0x54
|
||||
#define EXYNOS_EMUL_CON 0x80
|
||||
|
||||
#define EXYNOS_TRIMINFO_RELOAD_ENABLE 1
|
||||
#define EXYNOS_TRIMINFO_25_SHIFT 0
|
||||
#define EXYNOS_TRIMINFO_85_SHIFT 8
|
||||
#define EXYNOS_TMU_TRIP_MODE_SHIFT 13
|
||||
#define EXYNOS_TMU_TRIP_MODE_MASK 0x7
|
||||
#define EXYNOS_TMU_THERM_TRIP_EN_SHIFT 12
|
||||
|
||||
#define EXYNOS_TMU_INTEN_RISE0_SHIFT 0
|
||||
#define EXYNOS_TMU_INTEN_RISE1_SHIFT 4
|
||||
#define EXYNOS_TMU_INTEN_RISE2_SHIFT 8
|
||||
#define EXYNOS_TMU_INTEN_RISE3_SHIFT 12
|
||||
#define EXYNOS_TMU_INTEN_FALL0_SHIFT 16
|
||||
|
||||
#define EXYNOS_EMUL_TIME 0x57F0
|
||||
#define EXYNOS_EMUL_TIME_MASK 0xffff
|
||||
#define EXYNOS_EMUL_TIME_SHIFT 16
|
||||
#define EXYNOS_EMUL_DATA_SHIFT 8
|
||||
#define EXYNOS_EMUL_DATA_MASK 0xFF
|
||||
#define EXYNOS_EMUL_ENABLE 0x1
|
||||
|
||||
/* Exynos5260 specific */
|
||||
#define EXYNOS5260_TMU_REG_INTEN 0xC0
|
||||
#define EXYNOS5260_TMU_REG_INTSTAT 0xC4
|
||||
#define EXYNOS5260_TMU_REG_INTCLEAR 0xC8
|
||||
#define EXYNOS5260_EMUL_CON 0x100
|
||||
|
||||
/* Exynos4412 specific */
|
||||
#define EXYNOS4412_MUX_ADDR_VALUE 6
|
||||
#define EXYNOS4412_MUX_ADDR_SHIFT 20
|
||||
|
||||
/*exynos5440 specific registers*/
|
||||
#define EXYNOS5440_TMU_S0_7_TRIM 0x000
|
||||
#define EXYNOS5440_TMU_S0_7_CTRL 0x020
|
||||
#define EXYNOS5440_TMU_S0_7_DEBUG 0x040
|
||||
#define EXYNOS5440_TMU_S0_7_TEMP 0x0f0
|
||||
#define EXYNOS5440_TMU_S0_7_TH0 0x110
|
||||
#define EXYNOS5440_TMU_S0_7_TH1 0x130
|
||||
#define EXYNOS5440_TMU_S0_7_TH2 0x150
|
||||
#define EXYNOS5440_TMU_S0_7_IRQEN 0x210
|
||||
#define EXYNOS5440_TMU_S0_7_IRQ 0x230
|
||||
/* exynos5440 common registers */
|
||||
#define EXYNOS5440_TMU_IRQ_STATUS 0x000
|
||||
#define EXYNOS5440_TMU_PMIN 0x004
|
||||
|
||||
#define EXYNOS5440_TMU_INTEN_RISE0_SHIFT 0
|
||||
#define EXYNOS5440_TMU_INTEN_RISE1_SHIFT 1
|
||||
#define EXYNOS5440_TMU_INTEN_RISE2_SHIFT 2
|
||||
#define EXYNOS5440_TMU_INTEN_RISE3_SHIFT 3
|
||||
#define EXYNOS5440_TMU_INTEN_FALL0_SHIFT 4
|
||||
#define EXYNOS5440_TMU_TH_RISE4_SHIFT 24
|
||||
#define EXYNOS5440_EFUSE_SWAP_OFFSET 8
|
||||
|
||||
/**
|
||||
* struct exynos_tmu_data : A structure to hold the private data of the TMU
|
||||
@ -52,6 +132,11 @@
|
||||
* @temp_error2: fused value of the second point trim.
|
||||
* @regulator: pointer to the TMU regulator structure.
|
||||
* @reg_conf: pointer to structure to register with core thermal.
|
||||
* @tmu_initialize: SoC specific TMU initialization method
|
||||
* @tmu_control: SoC specific TMU control method
|
||||
* @tmu_read: SoC specific TMU temperature read method
|
||||
* @tmu_set_emulation: SoC specific TMU emulation setting method
|
||||
* @tmu_clear_irqs: SoC specific TMU interrupts clearing method
|
||||
*/
|
||||
struct exynos_tmu_data {
|
||||
int id;
|
||||
@ -66,6 +151,12 @@ struct exynos_tmu_data {
|
||||
u8 temp_error1, temp_error2;
|
||||
struct regulator *regulator;
|
||||
struct thermal_sensor_conf *reg_conf;
|
||||
int (*tmu_initialize)(struct platform_device *pdev);
|
||||
void (*tmu_control)(struct platform_device *pdev, bool on);
|
||||
int (*tmu_read)(struct exynos_tmu_data *data);
|
||||
void (*tmu_set_emulation)(struct exynos_tmu_data *data,
|
||||
unsigned long temp);
|
||||
void (*tmu_clear_irqs)(struct exynos_tmu_data *data);
|
||||
};
|
||||
|
||||
/*
|
||||
@ -122,83 +213,10 @@ static int code_to_temp(struct exynos_tmu_data *data, u8 temp_code)
|
||||
return temp;
|
||||
}
|
||||
|
||||
static void exynos_tmu_clear_irqs(struct exynos_tmu_data *data)
|
||||
static void sanitize_temp_error(struct exynos_tmu_data *data, u32 trim_info)
|
||||
{
|
||||
const struct exynos_tmu_registers *reg = data->pdata->registers;
|
||||
unsigned int val_irq;
|
||||
|
||||
val_irq = readl(data->base + reg->tmu_intstat);
|
||||
/*
|
||||
* Clear the interrupts. Please note that the documentation for
|
||||
* Exynos3250, Exynos4412, Exynos5250 and Exynos5260 incorrectly
|
||||
* states that INTCLEAR register has a different placing of bits
|
||||
* responsible for FALL IRQs than INTSTAT register. Exynos5420
|
||||
* and Exynos5440 documentation is correct (Exynos4210 doesn't
|
||||
* support FALL IRQs at all).
|
||||
*/
|
||||
writel(val_irq, data->base + reg->tmu_intclear);
|
||||
}
|
||||
|
||||
static int exynos_tmu_initialize(struct platform_device *pdev)
|
||||
{
|
||||
struct exynos_tmu_data *data = platform_get_drvdata(pdev);
|
||||
struct exynos_tmu_platform_data *pdata = data->pdata;
|
||||
const struct exynos_tmu_registers *reg = pdata->registers;
|
||||
unsigned int status, trim_info = 0, con, ctrl;
|
||||
unsigned int rising_threshold = 0, falling_threshold = 0;
|
||||
int ret = 0, threshold_code, i;
|
||||
|
||||
mutex_lock(&data->lock);
|
||||
clk_enable(data->clk);
|
||||
if (!IS_ERR(data->clk_sec))
|
||||
clk_enable(data->clk_sec);
|
||||
|
||||
if (TMU_SUPPORTS(pdata, READY_STATUS)) {
|
||||
status = readb(data->base + reg->tmu_status);
|
||||
if (!status) {
|
||||
ret = -EBUSY;
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
|
||||
if (TMU_SUPPORTS(pdata, TRIM_RELOAD)) {
|
||||
for (i = 0; i < reg->triminfo_ctrl_count; i++) {
|
||||
if (pdata->triminfo_reload[i]) {
|
||||
ctrl = readl(data->base +
|
||||
reg->triminfo_ctrl[i]);
|
||||
ctrl |= pdata->triminfo_reload[i];
|
||||
writel(ctrl, data->base +
|
||||
reg->triminfo_ctrl[i]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Save trimming info in order to perform calibration */
|
||||
if (data->soc == SOC_ARCH_EXYNOS5440) {
|
||||
/*
|
||||
* For exynos5440 soc triminfo value is swapped between TMU0 and
|
||||
* TMU2, so the below logic is needed.
|
||||
*/
|
||||
switch (data->id) {
|
||||
case 0:
|
||||
trim_info = readl(data->base +
|
||||
EXYNOS5440_EFUSE_SWAP_OFFSET + reg->triminfo_data);
|
||||
break;
|
||||
case 1:
|
||||
trim_info = readl(data->base + reg->triminfo_data);
|
||||
break;
|
||||
case 2:
|
||||
trim_info = readl(data->base -
|
||||
EXYNOS5440_EFUSE_SWAP_OFFSET + reg->triminfo_data);
|
||||
}
|
||||
} else {
|
||||
/* On exynos5420 the triminfo register is in the shared space */
|
||||
if (data->soc == SOC_ARCH_EXYNOS5420_TRIMINFO)
|
||||
trim_info = readl(data->base_second +
|
||||
reg->triminfo_data);
|
||||
else
|
||||
trim_info = readl(data->base + reg->triminfo_data);
|
||||
}
|
||||
data->temp_error1 = trim_info & EXYNOS_TMU_TEMP_MASK;
|
||||
data->temp_error2 = ((trim_info >> EXYNOS_TRIMINFO_85_SHIFT) &
|
||||
EXYNOS_TMU_TEMP_MASK);
|
||||
@ -212,69 +230,37 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
|
||||
data->temp_error2 =
|
||||
(pdata->efuse_value >> EXYNOS_TRIMINFO_85_SHIFT) &
|
||||
EXYNOS_TMU_TEMP_MASK;
|
||||
}
|
||||
|
||||
rising_threshold = readl(data->base + reg->threshold_th0);
|
||||
static u32 get_th_reg(struct exynos_tmu_data *data, u32 threshold, bool falling)
|
||||
{
|
||||
struct exynos_tmu_platform_data *pdata = data->pdata;
|
||||
int i;
|
||||
|
||||
if (data->soc == SOC_ARCH_EXYNOS4210) {
|
||||
/* Write temperature code for threshold */
|
||||
threshold_code = temp_to_code(data, pdata->threshold);
|
||||
writeb(threshold_code,
|
||||
data->base + reg->threshold_temp);
|
||||
for (i = 0; i < pdata->non_hw_trigger_levels; i++)
|
||||
writeb(pdata->trigger_levels[i], data->base +
|
||||
reg->threshold_th0 + i * sizeof(reg->threshold_th0));
|
||||
for (i = 0; i < pdata->non_hw_trigger_levels; i++) {
|
||||
u8 temp = pdata->trigger_levels[i];
|
||||
|
||||
exynos_tmu_clear_irqs(data);
|
||||
} else {
|
||||
/* Write temperature code for rising and falling threshold */
|
||||
for (i = 0; i < pdata->non_hw_trigger_levels; i++) {
|
||||
threshold_code = temp_to_code(data,
|
||||
pdata->trigger_levels[i]);
|
||||
rising_threshold &= ~(0xff << 8 * i);
|
||||
rising_threshold |= threshold_code << 8 * i;
|
||||
if (pdata->threshold_falling) {
|
||||
threshold_code = temp_to_code(data,
|
||||
pdata->trigger_levels[i] -
|
||||
pdata->threshold_falling);
|
||||
falling_threshold |= threshold_code << 8 * i;
|
||||
}
|
||||
}
|
||||
if (falling)
|
||||
temp -= pdata->threshold_falling;
|
||||
else
|
||||
threshold &= ~(0xff << 8 * i);
|
||||
|
||||
writel(rising_threshold,
|
||||
data->base + reg->threshold_th0);
|
||||
writel(falling_threshold,
|
||||
data->base + reg->threshold_th1);
|
||||
|
||||
exynos_tmu_clear_irqs(data);
|
||||
|
||||
/* if last threshold limit is also present */
|
||||
i = pdata->max_trigger_level - 1;
|
||||
if (pdata->trigger_levels[i] &&
|
||||
(pdata->trigger_type[i] == HW_TRIP)) {
|
||||
threshold_code = temp_to_code(data,
|
||||
pdata->trigger_levels[i]);
|
||||
if (i == EXYNOS_MAX_TRIGGER_PER_REG - 1) {
|
||||
/* 1-4 level to be assigned in th0 reg */
|
||||
rising_threshold &= ~(0xff << 8 * i);
|
||||
rising_threshold |= threshold_code << 8 * i;
|
||||
writel(rising_threshold,
|
||||
data->base + reg->threshold_th0);
|
||||
} else if (i == EXYNOS_MAX_TRIGGER_PER_REG) {
|
||||
/* 5th level to be assigned in th2 reg */
|
||||
rising_threshold =
|
||||
threshold_code << reg->threshold_th3_l0_shift;
|
||||
writel(rising_threshold,
|
||||
data->base + reg->threshold_th2);
|
||||
}
|
||||
con = readl(data->base + reg->tmu_ctrl);
|
||||
con |= (1 << reg->therm_trip_en_shift);
|
||||
writel(con, data->base + reg->tmu_ctrl);
|
||||
}
|
||||
threshold |= temp_to_code(data, temp) << 8 * i;
|
||||
}
|
||||
/*Clear the PMIN in the common TMU register*/
|
||||
if (reg->tmu_pmin && !data->id)
|
||||
writel(0, data->base_second + reg->tmu_pmin);
|
||||
out:
|
||||
|
||||
return threshold;
|
||||
}
|
||||
|
||||
static int exynos_tmu_initialize(struct platform_device *pdev)
|
||||
{
|
||||
struct exynos_tmu_data *data = platform_get_drvdata(pdev);
|
||||
int ret;
|
||||
|
||||
mutex_lock(&data->lock);
|
||||
clk_enable(data->clk);
|
||||
if (!IS_ERR(data->clk_sec))
|
||||
clk_enable(data->clk_sec);
|
||||
ret = data->tmu_initialize(pdev);
|
||||
clk_disable(data->clk);
|
||||
mutex_unlock(&data->lock);
|
||||
if (!IS_ERR(data->clk_sec))
|
||||
@ -283,20 +269,13 @@ out:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void exynos_tmu_control(struct platform_device *pdev, bool on)
|
||||
static u32 get_con_reg(struct exynos_tmu_data *data, u32 con)
|
||||
{
|
||||
struct exynos_tmu_data *data = platform_get_drvdata(pdev);
|
||||
struct exynos_tmu_platform_data *pdata = data->pdata;
|
||||
const struct exynos_tmu_registers *reg = pdata->registers;
|
||||
unsigned int con, interrupt_en;
|
||||
|
||||
mutex_lock(&data->lock);
|
||||
clk_enable(data->clk);
|
||||
|
||||
con = readl(data->base + reg->tmu_ctrl);
|
||||
|
||||
if (pdata->test_mux)
|
||||
con |= (pdata->test_mux << reg->test_mux_addr_shift);
|
||||
if (data->soc == SOC_ARCH_EXYNOS4412 ||
|
||||
data->soc == SOC_ARCH_EXYNOS3250)
|
||||
con |= (EXYNOS4412_MUX_ADDR_VALUE << EXYNOS4412_MUX_ADDR_SHIFT);
|
||||
|
||||
con &= ~(EXYNOS_TMU_REF_VOLTAGE_MASK << EXYNOS_TMU_REF_VOLTAGE_SHIFT);
|
||||
con |= pdata->reference_voltage << EXYNOS_TMU_REF_VOLTAGE_SHIFT;
|
||||
@ -305,69 +284,279 @@ static void exynos_tmu_control(struct platform_device *pdev, bool on)
|
||||
con |= (pdata->gain << EXYNOS_TMU_BUF_SLOPE_SEL_SHIFT);
|
||||
|
||||
if (pdata->noise_cancel_mode) {
|
||||
con &= ~(reg->therm_trip_mode_mask <<
|
||||
reg->therm_trip_mode_shift);
|
||||
con |= (pdata->noise_cancel_mode << reg->therm_trip_mode_shift);
|
||||
con &= ~(EXYNOS_TMU_TRIP_MODE_MASK << EXYNOS_TMU_TRIP_MODE_SHIFT);
|
||||
con |= (pdata->noise_cancel_mode << EXYNOS_TMU_TRIP_MODE_SHIFT);
|
||||
}
|
||||
|
||||
return con;
|
||||
}
|
||||
|
||||
static void exynos_tmu_control(struct platform_device *pdev, bool on)
|
||||
{
|
||||
struct exynos_tmu_data *data = platform_get_drvdata(pdev);
|
||||
|
||||
mutex_lock(&data->lock);
|
||||
clk_enable(data->clk);
|
||||
data->tmu_control(pdev, on);
|
||||
clk_disable(data->clk);
|
||||
mutex_unlock(&data->lock);
|
||||
}
|
||||
|
||||
static int exynos4210_tmu_initialize(struct platform_device *pdev)
|
||||
{
|
||||
struct exynos_tmu_data *data = platform_get_drvdata(pdev);
|
||||
struct exynos_tmu_platform_data *pdata = data->pdata;
|
||||
unsigned int status;
|
||||
int ret = 0, threshold_code, i;
|
||||
|
||||
status = readb(data->base + EXYNOS_TMU_REG_STATUS);
|
||||
if (!status) {
|
||||
ret = -EBUSY;
|
||||
goto out;
|
||||
}
|
||||
|
||||
sanitize_temp_error(data, readl(data->base + EXYNOS_TMU_REG_TRIMINFO));
|
||||
|
||||
/* Write temperature code for threshold */
|
||||
threshold_code = temp_to_code(data, pdata->threshold);
|
||||
writeb(threshold_code, data->base + EXYNOS4210_TMU_REG_THRESHOLD_TEMP);
|
||||
|
||||
for (i = 0; i < pdata->non_hw_trigger_levels; i++)
|
||||
writeb(pdata->trigger_levels[i], data->base +
|
||||
EXYNOS4210_TMU_REG_TRIG_LEVEL0 + i * 4);
|
||||
|
||||
data->tmu_clear_irqs(data);
|
||||
out:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int exynos4412_tmu_initialize(struct platform_device *pdev)
|
||||
{
|
||||
struct exynos_tmu_data *data = platform_get_drvdata(pdev);
|
||||
struct exynos_tmu_platform_data *pdata = data->pdata;
|
||||
unsigned int status, trim_info, con, ctrl, rising_threshold;
|
||||
int ret = 0, threshold_code, i;
|
||||
|
||||
status = readb(data->base + EXYNOS_TMU_REG_STATUS);
|
||||
if (!status) {
|
||||
ret = -EBUSY;
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (data->soc == SOC_ARCH_EXYNOS3250 ||
|
||||
data->soc == SOC_ARCH_EXYNOS4412 ||
|
||||
data->soc == SOC_ARCH_EXYNOS5250) {
|
||||
if (data->soc == SOC_ARCH_EXYNOS3250) {
|
||||
ctrl = readl(data->base + EXYNOS_TMU_TRIMINFO_CON1);
|
||||
ctrl |= EXYNOS_TRIMINFO_RELOAD_ENABLE;
|
||||
writel(ctrl, data->base + EXYNOS_TMU_TRIMINFO_CON1);
|
||||
}
|
||||
ctrl = readl(data->base + EXYNOS_TMU_TRIMINFO_CON2);
|
||||
ctrl |= EXYNOS_TRIMINFO_RELOAD_ENABLE;
|
||||
writel(ctrl, data->base + EXYNOS_TMU_TRIMINFO_CON2);
|
||||
}
|
||||
|
||||
/* On exynos5420 the triminfo register is in the shared space */
|
||||
if (data->soc == SOC_ARCH_EXYNOS5420_TRIMINFO)
|
||||
trim_info = readl(data->base_second + EXYNOS_TMU_REG_TRIMINFO);
|
||||
else
|
||||
trim_info = readl(data->base + EXYNOS_TMU_REG_TRIMINFO);
|
||||
|
||||
sanitize_temp_error(data, trim_info);
|
||||
|
||||
/* Write temperature code for rising and falling threshold */
|
||||
rising_threshold = readl(data->base + EXYNOS_THD_TEMP_RISE);
|
||||
rising_threshold = get_th_reg(data, rising_threshold, false);
|
||||
writel(rising_threshold, data->base + EXYNOS_THD_TEMP_RISE);
|
||||
writel(get_th_reg(data, 0, true), data->base + EXYNOS_THD_TEMP_FALL);
|
||||
|
||||
data->tmu_clear_irqs(data);
|
||||
|
||||
/* if last threshold limit is also present */
|
||||
i = pdata->max_trigger_level - 1;
|
||||
if (pdata->trigger_levels[i] && pdata->trigger_type[i] == HW_TRIP) {
|
||||
threshold_code = temp_to_code(data, pdata->trigger_levels[i]);
|
||||
/* 1-4 level to be assigned in th0 reg */
|
||||
rising_threshold &= ~(0xff << 8 * i);
|
||||
rising_threshold |= threshold_code << 8 * i;
|
||||
writel(rising_threshold, data->base + EXYNOS_THD_TEMP_RISE);
|
||||
con = readl(data->base + EXYNOS_TMU_REG_CONTROL);
|
||||
con |= (1 << EXYNOS_TMU_THERM_TRIP_EN_SHIFT);
|
||||
writel(con, data->base + EXYNOS_TMU_REG_CONTROL);
|
||||
}
|
||||
out:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int exynos5440_tmu_initialize(struct platform_device *pdev)
|
||||
{
|
||||
struct exynos_tmu_data *data = platform_get_drvdata(pdev);
|
||||
struct exynos_tmu_platform_data *pdata = data->pdata;
|
||||
unsigned int trim_info = 0, con, rising_threshold;
|
||||
int ret = 0, threshold_code, i;
|
||||
|
||||
/*
|
||||
* For exynos5440 soc triminfo value is swapped between TMU0 and
|
||||
* TMU2, so the below logic is needed.
|
||||
*/
|
||||
switch (data->id) {
|
||||
case 0:
|
||||
trim_info = readl(data->base + EXYNOS5440_EFUSE_SWAP_OFFSET +
|
||||
EXYNOS5440_TMU_S0_7_TRIM);
|
||||
break;
|
||||
case 1:
|
||||
trim_info = readl(data->base + EXYNOS5440_TMU_S0_7_TRIM);
|
||||
break;
|
||||
case 2:
|
||||
trim_info = readl(data->base - EXYNOS5440_EFUSE_SWAP_OFFSET +
|
||||
EXYNOS5440_TMU_S0_7_TRIM);
|
||||
}
|
||||
sanitize_temp_error(data, trim_info);
|
||||
|
||||
/* Write temperature code for rising and falling threshold */
|
||||
rising_threshold = readl(data->base + EXYNOS5440_TMU_S0_7_TH0);
|
||||
rising_threshold = get_th_reg(data, rising_threshold, false);
|
||||
writel(rising_threshold, data->base + EXYNOS5440_TMU_S0_7_TH0);
|
||||
writel(0, data->base + EXYNOS5440_TMU_S0_7_TH1);
|
||||
|
||||
data->tmu_clear_irqs(data);
|
||||
|
||||
/* if last threshold limit is also present */
|
||||
i = pdata->max_trigger_level - 1;
|
||||
if (pdata->trigger_levels[i] && pdata->trigger_type[i] == HW_TRIP) {
|
||||
threshold_code = temp_to_code(data, pdata->trigger_levels[i]);
|
||||
/* 5th level to be assigned in th2 reg */
|
||||
rising_threshold =
|
||||
threshold_code << EXYNOS5440_TMU_TH_RISE4_SHIFT;
|
||||
writel(rising_threshold, data->base + EXYNOS5440_TMU_S0_7_TH2);
|
||||
con = readl(data->base + EXYNOS5440_TMU_S0_7_CTRL);
|
||||
con |= (1 << EXYNOS_TMU_THERM_TRIP_EN_SHIFT);
|
||||
writel(con, data->base + EXYNOS5440_TMU_S0_7_CTRL);
|
||||
}
|
||||
/* Clear the PMIN in the common TMU register */
|
||||
if (!data->id)
|
||||
writel(0, data->base_second + EXYNOS5440_TMU_PMIN);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void exynos4210_tmu_control(struct platform_device *pdev, bool on)
|
||||
{
|
||||
struct exynos_tmu_data *data = platform_get_drvdata(pdev);
|
||||
struct exynos_tmu_platform_data *pdata = data->pdata;
|
||||
unsigned int con, interrupt_en;
|
||||
|
||||
con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL));
|
||||
|
||||
if (on) {
|
||||
con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT);
|
||||
interrupt_en =
|
||||
pdata->trigger_enable[3] << reg->inten_rise3_shift |
|
||||
pdata->trigger_enable[2] << reg->inten_rise2_shift |
|
||||
pdata->trigger_enable[1] << reg->inten_rise1_shift |
|
||||
pdata->trigger_enable[0] << reg->inten_rise0_shift;
|
||||
if (TMU_SUPPORTS(pdata, FALLING_TRIP))
|
||||
pdata->trigger_enable[3] << EXYNOS_TMU_INTEN_RISE3_SHIFT |
|
||||
pdata->trigger_enable[2] << EXYNOS_TMU_INTEN_RISE2_SHIFT |
|
||||
pdata->trigger_enable[1] << EXYNOS_TMU_INTEN_RISE1_SHIFT |
|
||||
pdata->trigger_enable[0] << EXYNOS_TMU_INTEN_RISE0_SHIFT;
|
||||
if (data->soc != SOC_ARCH_EXYNOS4210)
|
||||
interrupt_en |=
|
||||
interrupt_en << reg->inten_fall0_shift;
|
||||
interrupt_en << EXYNOS_TMU_INTEN_FALL0_SHIFT;
|
||||
} else {
|
||||
con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT);
|
||||
interrupt_en = 0; /* Disable all interrupts */
|
||||
}
|
||||
writel(interrupt_en, data->base + reg->tmu_inten);
|
||||
writel(con, data->base + reg->tmu_ctrl);
|
||||
writel(interrupt_en, data->base + EXYNOS_TMU_REG_INTEN);
|
||||
writel(con, data->base + EXYNOS_TMU_REG_CONTROL);
|
||||
}
|
||||
|
||||
clk_disable(data->clk);
|
||||
mutex_unlock(&data->lock);
|
||||
static void exynos5440_tmu_control(struct platform_device *pdev, bool on)
|
||||
{
|
||||
struct exynos_tmu_data *data = platform_get_drvdata(pdev);
|
||||
struct exynos_tmu_platform_data *pdata = data->pdata;
|
||||
unsigned int con, interrupt_en;
|
||||
|
||||
con = get_con_reg(data, readl(data->base + EXYNOS5440_TMU_S0_7_CTRL));
|
||||
|
||||
if (on) {
|
||||
con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT);
|
||||
interrupt_en =
|
||||
pdata->trigger_enable[3] << EXYNOS5440_TMU_INTEN_RISE3_SHIFT |
|
||||
pdata->trigger_enable[2] << EXYNOS5440_TMU_INTEN_RISE2_SHIFT |
|
||||
pdata->trigger_enable[1] << EXYNOS5440_TMU_INTEN_RISE1_SHIFT |
|
||||
pdata->trigger_enable[0] << EXYNOS5440_TMU_INTEN_RISE0_SHIFT;
|
||||
interrupt_en |= interrupt_en << EXYNOS5440_TMU_INTEN_FALL0_SHIFT;
|
||||
} else {
|
||||
con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT);
|
||||
interrupt_en = 0; /* Disable all interrupts */
|
||||
}
|
||||
writel(interrupt_en, data->base + EXYNOS5440_TMU_S0_7_IRQEN);
|
||||
writel(con, data->base + EXYNOS5440_TMU_S0_7_CTRL);
|
||||
}
|
||||
|
||||
static int exynos_tmu_read(struct exynos_tmu_data *data)
|
||||
{
|
||||
struct exynos_tmu_platform_data *pdata = data->pdata;
|
||||
const struct exynos_tmu_registers *reg = pdata->registers;
|
||||
u8 temp_code;
|
||||
int temp;
|
||||
int ret;
|
||||
|
||||
mutex_lock(&data->lock);
|
||||
clk_enable(data->clk);
|
||||
|
||||
temp_code = readb(data->base + reg->tmu_cur_temp);
|
||||
|
||||
if (data->soc == SOC_ARCH_EXYNOS4210)
|
||||
/* temp_code should range between 75 and 175 */
|
||||
if (temp_code < 75 || temp_code > 175) {
|
||||
temp = -ENODATA;
|
||||
goto out;
|
||||
}
|
||||
|
||||
temp = code_to_temp(data, temp_code);
|
||||
out:
|
||||
ret = data->tmu_read(data);
|
||||
if (ret >= 0)
|
||||
ret = code_to_temp(data, ret);
|
||||
clk_disable(data->clk);
|
||||
mutex_unlock(&data->lock);
|
||||
|
||||
return temp;
|
||||
return ret;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_THERMAL_EMULATION
|
||||
static u32 get_emul_con_reg(struct exynos_tmu_data *data, unsigned int val,
|
||||
unsigned long temp)
|
||||
{
|
||||
if (temp) {
|
||||
temp /= MCELSIUS;
|
||||
|
||||
if (data->soc != SOC_ARCH_EXYNOS5440) {
|
||||
val &= ~(EXYNOS_EMUL_TIME_MASK << EXYNOS_EMUL_TIME_SHIFT);
|
||||
val |= (EXYNOS_EMUL_TIME << EXYNOS_EMUL_TIME_SHIFT);
|
||||
}
|
||||
val &= ~(EXYNOS_EMUL_DATA_MASK << EXYNOS_EMUL_DATA_SHIFT);
|
||||
val |= (temp_to_code(data, temp) << EXYNOS_EMUL_DATA_SHIFT) |
|
||||
EXYNOS_EMUL_ENABLE;
|
||||
} else {
|
||||
val &= ~EXYNOS_EMUL_ENABLE;
|
||||
}
|
||||
|
||||
return val;
|
||||
}
|
||||
|
||||
static void exynos4412_tmu_set_emulation(struct exynos_tmu_data *data,
|
||||
unsigned long temp)
|
||||
{
|
||||
unsigned int val;
|
||||
u32 emul_con;
|
||||
|
||||
if (data->soc == SOC_ARCH_EXYNOS5260)
|
||||
emul_con = EXYNOS5260_EMUL_CON;
|
||||
else
|
||||
emul_con = EXYNOS_EMUL_CON;
|
||||
|
||||
val = readl(data->base + emul_con);
|
||||
val = get_emul_con_reg(data, val, temp);
|
||||
writel(val, data->base + emul_con);
|
||||
}
|
||||
|
||||
static void exynos5440_tmu_set_emulation(struct exynos_tmu_data *data,
|
||||
unsigned long temp)
|
||||
{
|
||||
unsigned int val;
|
||||
|
||||
val = readl(data->base + EXYNOS5440_TMU_S0_7_DEBUG);
|
||||
val = get_emul_con_reg(data, val, temp);
|
||||
writel(val, data->base + EXYNOS5440_TMU_S0_7_DEBUG);
|
||||
}
|
||||
|
||||
static int exynos_tmu_set_emulation(void *drv_data, unsigned long temp)
|
||||
{
|
||||
struct exynos_tmu_data *data = drv_data;
|
||||
struct exynos_tmu_platform_data *pdata = data->pdata;
|
||||
const struct exynos_tmu_registers *reg = pdata->registers;
|
||||
unsigned int val;
|
||||
int ret = -EINVAL;
|
||||
|
||||
if (!TMU_SUPPORTS(pdata, EMULATION))
|
||||
if (data->soc == SOC_ARCH_EXYNOS4210)
|
||||
goto out;
|
||||
|
||||
if (temp && temp < MCELSIUS)
|
||||
@ -375,25 +564,7 @@ static int exynos_tmu_set_emulation(void *drv_data, unsigned long temp)
|
||||
|
||||
mutex_lock(&data->lock);
|
||||
clk_enable(data->clk);
|
||||
|
||||
val = readl(data->base + reg->emul_con);
|
||||
|
||||
if (temp) {
|
||||
temp /= MCELSIUS;
|
||||
|
||||
if (TMU_SUPPORTS(pdata, EMUL_TIME)) {
|
||||
val &= ~(EXYNOS_EMUL_TIME_MASK << reg->emul_time_shift);
|
||||
val |= (EXYNOS_EMUL_TIME << reg->emul_time_shift);
|
||||
}
|
||||
val &= ~(EXYNOS_EMUL_DATA_MASK << reg->emul_temp_shift);
|
||||
val |= (temp_to_code(data, temp) << reg->emul_temp_shift) |
|
||||
EXYNOS_EMUL_ENABLE;
|
||||
} else {
|
||||
val &= ~EXYNOS_EMUL_ENABLE;
|
||||
}
|
||||
|
||||
writel(val, data->base + reg->emul_con);
|
||||
|
||||
data->tmu_set_emulation(data, temp);
|
||||
clk_disable(data->clk);
|
||||
mutex_unlock(&data->lock);
|
||||
return 0;
|
||||
@ -401,23 +572,41 @@ out:
|
||||
return ret;
|
||||
}
|
||||
#else
|
||||
#define exynos4412_tmu_set_emulation NULL
|
||||
#define exynos5440_tmu_set_emulation NULL
|
||||
static int exynos_tmu_set_emulation(void *drv_data, unsigned long temp)
|
||||
{ return -EINVAL; }
|
||||
#endif/*CONFIG_THERMAL_EMULATION*/
|
||||
|
||||
static int exynos4210_tmu_read(struct exynos_tmu_data *data)
|
||||
{
|
||||
int ret = readb(data->base + EXYNOS_TMU_REG_CURRENT_TEMP);
|
||||
|
||||
/* "temp_code" should range between 75 and 175 */
|
||||
return (ret < 75 || ret > 175) ? -ENODATA : ret;
|
||||
}
|
||||
|
||||
static int exynos4412_tmu_read(struct exynos_tmu_data *data)
|
||||
{
|
||||
return readb(data->base + EXYNOS_TMU_REG_CURRENT_TEMP);
|
||||
}
|
||||
|
||||
static int exynos5440_tmu_read(struct exynos_tmu_data *data)
|
||||
{
|
||||
return readb(data->base + EXYNOS5440_TMU_S0_7_TEMP);
|
||||
}
|
||||
|
||||
static void exynos_tmu_work(struct work_struct *work)
|
||||
{
|
||||
struct exynos_tmu_data *data = container_of(work,
|
||||
struct exynos_tmu_data, irq_work);
|
||||
struct exynos_tmu_platform_data *pdata = data->pdata;
|
||||
const struct exynos_tmu_registers *reg = pdata->registers;
|
||||
unsigned int val_type;
|
||||
|
||||
if (!IS_ERR(data->clk_sec))
|
||||
clk_enable(data->clk_sec);
|
||||
/* Find which sensor generated this interrupt */
|
||||
if (reg->tmu_irqstatus) {
|
||||
val_type = readl(data->base_second + reg->tmu_irqstatus);
|
||||
if (data->soc == SOC_ARCH_EXYNOS5440) {
|
||||
val_type = readl(data->base_second + EXYNOS5440_TMU_IRQ_STATUS);
|
||||
if (!((val_type >> data->id) & 0x1))
|
||||
goto out;
|
||||
}
|
||||
@ -429,7 +618,7 @@ static void exynos_tmu_work(struct work_struct *work)
|
||||
clk_enable(data->clk);
|
||||
|
||||
/* TODO: take action based on particular interrupt */
|
||||
exynos_tmu_clear_irqs(data);
|
||||
data->tmu_clear_irqs(data);
|
||||
|
||||
clk_disable(data->clk);
|
||||
mutex_unlock(&data->lock);
|
||||
@ -437,6 +626,40 @@ out:
|
||||
enable_irq(data->irq);
|
||||
}
|
||||
|
||||
static void exynos4210_tmu_clear_irqs(struct exynos_tmu_data *data)
|
||||
{
|
||||
unsigned int val_irq;
|
||||
u32 tmu_intstat, tmu_intclear;
|
||||
|
||||
if (data->soc == SOC_ARCH_EXYNOS5260) {
|
||||
tmu_intstat = EXYNOS5260_TMU_REG_INTSTAT;
|
||||
tmu_intclear = EXYNOS5260_TMU_REG_INTCLEAR;
|
||||
} else {
|
||||
tmu_intstat = EXYNOS_TMU_REG_INTSTAT;
|
||||
tmu_intclear = EXYNOS_TMU_REG_INTCLEAR;
|
||||
}
|
||||
|
||||
val_irq = readl(data->base + tmu_intstat);
|
||||
/*
|
||||
* Clear the interrupts. Please note that the documentation for
|
||||
* Exynos3250, Exynos4412, Exynos5250 and Exynos5260 incorrectly
|
||||
* states that INTCLEAR register has a different placing of bits
|
||||
* responsible for FALL IRQs than INTSTAT register. Exynos5420
|
||||
* and Exynos5440 documentation is correct (Exynos4210 doesn't
|
||||
* support FALL IRQs at all).
|
||||
*/
|
||||
writel(val_irq, data->base + tmu_intclear);
|
||||
}
|
||||
|
||||
static void exynos5440_tmu_clear_irqs(struct exynos_tmu_data *data)
|
||||
{
|
||||
unsigned int val_irq;
|
||||
|
||||
val_irq = readl(data->base + EXYNOS5440_TMU_S0_7_IRQ);
|
||||
/* clear the interrupts */
|
||||
writel(val_irq, data->base + EXYNOS5440_TMU_S0_7_IRQ);
|
||||
}
|
||||
|
||||
static irqreturn_t exynos_tmu_irq(int irq, void *id)
|
||||
{
|
||||
struct exynos_tmu_data *data = id;
|
||||
@ -450,35 +673,35 @@ static irqreturn_t exynos_tmu_irq(int irq, void *id)
|
||||
static const struct of_device_id exynos_tmu_match[] = {
|
||||
{
|
||||
.compatible = "samsung,exynos3250-tmu",
|
||||
.data = (void *)EXYNOS3250_TMU_DRV_DATA,
|
||||
.data = &exynos3250_default_tmu_data,
|
||||
},
|
||||
{
|
||||
.compatible = "samsung,exynos4210-tmu",
|
||||
.data = (void *)EXYNOS4210_TMU_DRV_DATA,
|
||||
.data = &exynos4210_default_tmu_data,
|
||||
},
|
||||
{
|
||||
.compatible = "samsung,exynos4412-tmu",
|
||||
.data = (void *)EXYNOS4412_TMU_DRV_DATA,
|
||||
.data = &exynos4412_default_tmu_data,
|
||||
},
|
||||
{
|
||||
.compatible = "samsung,exynos5250-tmu",
|
||||
.data = (void *)EXYNOS5250_TMU_DRV_DATA,
|
||||
.data = &exynos5250_default_tmu_data,
|
||||
},
|
||||
{
|
||||
.compatible = "samsung,exynos5260-tmu",
|
||||
.data = (void *)EXYNOS5260_TMU_DRV_DATA,
|
||||
.data = &exynos5260_default_tmu_data,
|
||||
},
|
||||
{
|
||||
.compatible = "samsung,exynos5420-tmu",
|
||||
.data = (void *)EXYNOS5420_TMU_DRV_DATA,
|
||||
.data = &exynos5420_default_tmu_data,
|
||||
},
|
||||
{
|
||||
.compatible = "samsung,exynos5420-tmu-ext-triminfo",
|
||||
.data = (void *)EXYNOS5420_TMU_DRV_DATA,
|
||||
.data = &exynos5420_default_tmu_data,
|
||||
},
|
||||
{
|
||||
.compatible = "samsung,exynos5440-tmu",
|
||||
.data = (void *)EXYNOS5440_TMU_DRV_DATA,
|
||||
.data = &exynos5440_default_tmu_data,
|
||||
},
|
||||
{},
|
||||
};
|
||||
@ -553,12 +776,47 @@ static int exynos_map_dt_data(struct platform_device *pdev)
|
||||
dev_err(&pdev->dev, "No platform init data supplied.\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
data->pdata = pdata;
|
||||
data->soc = pdata->type;
|
||||
|
||||
switch (data->soc) {
|
||||
case SOC_ARCH_EXYNOS4210:
|
||||
data->tmu_initialize = exynos4210_tmu_initialize;
|
||||
data->tmu_control = exynos4210_tmu_control;
|
||||
data->tmu_read = exynos4210_tmu_read;
|
||||
data->tmu_clear_irqs = exynos4210_tmu_clear_irqs;
|
||||
break;
|
||||
case SOC_ARCH_EXYNOS3250:
|
||||
case SOC_ARCH_EXYNOS4412:
|
||||
case SOC_ARCH_EXYNOS5250:
|
||||
case SOC_ARCH_EXYNOS5260:
|
||||
case SOC_ARCH_EXYNOS5420:
|
||||
case SOC_ARCH_EXYNOS5420_TRIMINFO:
|
||||
data->tmu_initialize = exynos4412_tmu_initialize;
|
||||
data->tmu_control = exynos4210_tmu_control;
|
||||
data->tmu_read = exynos4412_tmu_read;
|
||||
data->tmu_set_emulation = exynos4412_tmu_set_emulation;
|
||||
data->tmu_clear_irqs = exynos4210_tmu_clear_irqs;
|
||||
break;
|
||||
case SOC_ARCH_EXYNOS5440:
|
||||
data->tmu_initialize = exynos5440_tmu_initialize;
|
||||
data->tmu_control = exynos5440_tmu_control;
|
||||
data->tmu_read = exynos5440_tmu_read;
|
||||
data->tmu_set_emulation = exynos5440_tmu_set_emulation;
|
||||
data->tmu_clear_irqs = exynos5440_tmu_clear_irqs;
|
||||
break;
|
||||
default:
|
||||
dev_err(&pdev->dev, "Platform not supported\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/*
|
||||
* Check if the TMU shares some registers and then try to map the
|
||||
* memory of common registers.
|
||||
*/
|
||||
if (!TMU_SUPPORTS(pdata, ADDRESS_MULTIPLE))
|
||||
if (data->soc != SOC_ARCH_EXYNOS5420_TRIMINFO &&
|
||||
data->soc != SOC_ARCH_EXYNOS5440)
|
||||
return 0;
|
||||
|
||||
if (of_address_to_resource(pdev->dev.of_node, 1, &res)) {
|
||||
@ -625,20 +883,6 @@ static int exynos_tmu_probe(struct platform_device *pdev)
|
||||
goto err_clk_sec;
|
||||
}
|
||||
|
||||
if (pdata->type == SOC_ARCH_EXYNOS3250 ||
|
||||
pdata->type == SOC_ARCH_EXYNOS4210 ||
|
||||
pdata->type == SOC_ARCH_EXYNOS4412 ||
|
||||
pdata->type == SOC_ARCH_EXYNOS5250 ||
|
||||
pdata->type == SOC_ARCH_EXYNOS5260 ||
|
||||
pdata->type == SOC_ARCH_EXYNOS5420_TRIMINFO ||
|
||||
pdata->type == SOC_ARCH_EXYNOS5440)
|
||||
data->soc = pdata->type;
|
||||
else {
|
||||
ret = -EINVAL;
|
||||
dev_err(&pdev->dev, "Platform not supported\n");
|
||||
goto err_clk;
|
||||
}
|
||||
|
||||
ret = exynos_tmu_initialize(pdev);
|
||||
if (ret) {
|
||||
dev_err(&pdev->dev, "Failed to initialize TMU\n");
|
||||
|
@ -40,114 +40,11 @@ enum soc_type {
|
||||
SOC_ARCH_EXYNOS4412,
|
||||
SOC_ARCH_EXYNOS5250,
|
||||
SOC_ARCH_EXYNOS5260,
|
||||
SOC_ARCH_EXYNOS5420,
|
||||
SOC_ARCH_EXYNOS5420_TRIMINFO,
|
||||
SOC_ARCH_EXYNOS5440,
|
||||
};
|
||||
|
||||
/**
|
||||
* EXYNOS TMU supported features.
|
||||
* TMU_SUPPORT_EMULATION - This features is used to set user defined
|
||||
* temperature to the TMU controller.
|
||||
* TMU_SUPPORT_MULTI_INST - This features denotes that the soc
|
||||
* has many instances of TMU.
|
||||
* TMU_SUPPORT_TRIM_RELOAD - This features shows that trimming can
|
||||
* be reloaded.
|
||||
* TMU_SUPPORT_FALLING_TRIP - This features shows that interrupt can
|
||||
* be registered for falling trips also.
|
||||
* TMU_SUPPORT_READY_STATUS - This feature tells that the TMU current
|
||||
* state(active/idle) can be checked.
|
||||
* TMU_SUPPORT_EMUL_TIME - This features allows to set next temp emulation
|
||||
* sample time.
|
||||
* TMU_SUPPORT_ADDRESS_MULTIPLE - This feature tells that the different TMU
|
||||
* sensors shares some common registers.
|
||||
* TMU_SUPPORT - macro to compare the above features with the supplied.
|
||||
*/
|
||||
#define TMU_SUPPORT_EMULATION BIT(0)
|
||||
#define TMU_SUPPORT_MULTI_INST BIT(1)
|
||||
#define TMU_SUPPORT_TRIM_RELOAD BIT(2)
|
||||
#define TMU_SUPPORT_FALLING_TRIP BIT(3)
|
||||
#define TMU_SUPPORT_READY_STATUS BIT(4)
|
||||
#define TMU_SUPPORT_EMUL_TIME BIT(5)
|
||||
#define TMU_SUPPORT_ADDRESS_MULTIPLE BIT(6)
|
||||
|
||||
#define TMU_SUPPORTS(a, b) (a->features & TMU_SUPPORT_ ## b)
|
||||
|
||||
/**
|
||||
* struct exynos_tmu_register - register descriptors to access registers and
|
||||
* bitfields. The register validity, offsets and bitfield values may vary
|
||||
* slightly across different exynos SOC's.
|
||||
* @triminfo_data: register containing 2 pont trimming data
|
||||
* @triminfo_ctrl: trim info controller register.
|
||||
* @triminfo_ctrl_count: the number of trim info controller register.
|
||||
* @tmu_ctrl: TMU main controller register.
|
||||
* @test_mux_addr_shift: shift bits of test mux address.
|
||||
* @therm_trip_mode_shift: shift bits of tripping mode in tmu_ctrl register.
|
||||
* @therm_trip_mode_mask: mask bits of tripping mode in tmu_ctrl register.
|
||||
* @therm_trip_en_shift: shift bits of tripping enable in tmu_ctrl register.
|
||||
* @tmu_status: register drescribing the TMU status.
|
||||
* @tmu_cur_temp: register containing the current temperature of the TMU.
|
||||
* @threshold_temp: register containing the base threshold level.
|
||||
* @threshold_th0: Register containing first set of rising levels.
|
||||
* @threshold_th1: Register containing second set of rising levels.
|
||||
* @threshold_th2: Register containing third set of rising levels.
|
||||
* @threshold_th3_l0_shift: shift bits of level0 threshold temperature.
|
||||
* @tmu_inten: register containing the different threshold interrupt
|
||||
enable bits.
|
||||
* @inten_rise0_shift: shift bits of rising 0 interrupt bits.
|
||||
* @inten_rise1_shift: shift bits of rising 1 interrupt bits.
|
||||
* @inten_rise2_shift: shift bits of rising 2 interrupt bits.
|
||||
* @inten_rise3_shift: shift bits of rising 3 interrupt bits.
|
||||
* @inten_fall0_shift: shift bits of falling 0 interrupt bits.
|
||||
* @tmu_intstat: Register containing the interrupt status values.
|
||||
* @tmu_intclear: Register for clearing the raised interrupt status.
|
||||
* @emul_con: TMU emulation controller register.
|
||||
* @emul_temp_shift: shift bits of emulation temperature.
|
||||
* @emul_time_shift: shift bits of emulation time.
|
||||
* @tmu_irqstatus: register to find which TMU generated interrupts.
|
||||
* @tmu_pmin: register to get/set the Pmin value.
|
||||
*/
|
||||
struct exynos_tmu_registers {
|
||||
u32 triminfo_data;
|
||||
|
||||
u32 triminfo_ctrl[MAX_TRIMINFO_CTRL_REG];
|
||||
u32 triminfo_ctrl_count;
|
||||
|
||||
u32 tmu_ctrl;
|
||||
u32 test_mux_addr_shift;
|
||||
u32 therm_trip_mode_shift;
|
||||
u32 therm_trip_mode_mask;
|
||||
u32 therm_trip_en_shift;
|
||||
|
||||
u32 tmu_status;
|
||||
|
||||
u32 tmu_cur_temp;
|
||||
|
||||
u32 threshold_temp;
|
||||
|
||||
u32 threshold_th0;
|
||||
u32 threshold_th1;
|
||||
u32 threshold_th2;
|
||||
u32 threshold_th3_l0_shift;
|
||||
|
||||
u32 tmu_inten;
|
||||
u32 inten_rise0_shift;
|
||||
u32 inten_rise1_shift;
|
||||
u32 inten_rise2_shift;
|
||||
u32 inten_rise3_shift;
|
||||
u32 inten_fall0_shift;
|
||||
|
||||
u32 tmu_intstat;
|
||||
|
||||
u32 tmu_intclear;
|
||||
|
||||
u32 emul_con;
|
||||
u32 emul_temp_shift;
|
||||
u32 emul_time_shift;
|
||||
|
||||
u32 tmu_irqstatus;
|
||||
u32 tmu_pmin;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct exynos_tmu_platform_data
|
||||
* @threshold: basic temperature for generating interrupt
|
||||
@ -192,16 +89,10 @@ struct exynos_tmu_registers {
|
||||
* @first_point_trim: temp value of the first point trimming
|
||||
* @second_point_trim: temp value of the second point trimming
|
||||
* @default_temp_offset: default temperature offset in case of no trimming
|
||||
* @test_mux; information if SoC supports test MUX
|
||||
* @triminfo_reload: reload value to read TRIMINFO register
|
||||
* @cal_type: calibration type for temperature
|
||||
* @freq_clip_table: Table representing frequency reduction percentage.
|
||||
* @freq_tab_count: Count of the above table as frequency reduction may
|
||||
* applicable to only some of the trigger levels.
|
||||
* @registers: Pointer to structure containing all the TMU controller registers
|
||||
* and bitfields shifts and masks.
|
||||
* @features: a bitfield value indicating the features supported in SOC like
|
||||
* emulation, multi instance etc
|
||||
*
|
||||
* This structure is required for configuration of exynos_tmu driver.
|
||||
*/
|
||||
@ -223,15 +114,11 @@ struct exynos_tmu_platform_data {
|
||||
u8 first_point_trim;
|
||||
u8 second_point_trim;
|
||||
u8 default_temp_offset;
|
||||
u8 test_mux;
|
||||
u8 triminfo_reload[MAX_TRIMINFO_CTRL_REG];
|
||||
|
||||
enum calibration_type cal_type;
|
||||
enum soc_type type;
|
||||
struct freq_clip_table freq_tab[4];
|
||||
unsigned int freq_tab_count;
|
||||
const struct exynos_tmu_registers *registers;
|
||||
unsigned int features;
|
||||
};
|
||||
|
||||
/**
|
||||
@ -246,4 +133,12 @@ struct exynos_tmu_init_data {
|
||||
struct exynos_tmu_platform_data tmu_data[];
|
||||
};
|
||||
|
||||
extern struct exynos_tmu_init_data const exynos3250_default_tmu_data;
|
||||
extern struct exynos_tmu_init_data const exynos4210_default_tmu_data;
|
||||
extern struct exynos_tmu_init_data const exynos4412_default_tmu_data;
|
||||
extern struct exynos_tmu_init_data const exynos5250_default_tmu_data;
|
||||
extern struct exynos_tmu_init_data const exynos5260_default_tmu_data;
|
||||
extern struct exynos_tmu_init_data const exynos5420_default_tmu_data;
|
||||
extern struct exynos_tmu_init_data const exynos5440_default_tmu_data;
|
||||
|
||||
#endif /* _EXYNOS_TMU_H */
|
||||
|
@ -22,24 +22,6 @@
|
||||
|
||||
#include "exynos_thermal_common.h"
|
||||
#include "exynos_tmu.h"
|
||||
#include "exynos_tmu_data.h"
|
||||
|
||||
#if defined(CONFIG_CPU_EXYNOS4210)
|
||||
static const struct exynos_tmu_registers exynos4210_tmu_registers = {
|
||||
.triminfo_data = EXYNOS_TMU_REG_TRIMINFO,
|
||||
.tmu_ctrl = EXYNOS_TMU_REG_CONTROL,
|
||||
.tmu_status = EXYNOS_TMU_REG_STATUS,
|
||||
.tmu_cur_temp = EXYNOS_TMU_REG_CURRENT_TEMP,
|
||||
.threshold_temp = EXYNOS4210_TMU_REG_THRESHOLD_TEMP,
|
||||
.threshold_th0 = EXYNOS4210_TMU_REG_TRIG_LEVEL0,
|
||||
.tmu_inten = EXYNOS_TMU_REG_INTEN,
|
||||
.inten_rise0_shift = EXYNOS_TMU_INTEN_RISE0_SHIFT,
|
||||
.inten_rise1_shift = EXYNOS_TMU_INTEN_RISE1_SHIFT,
|
||||
.inten_rise2_shift = EXYNOS_TMU_INTEN_RISE2_SHIFT,
|
||||
.inten_rise3_shift = EXYNOS_TMU_INTEN_RISE3_SHIFT,
|
||||
.tmu_intstat = EXYNOS_TMU_REG_INTSTAT,
|
||||
.tmu_intclear = EXYNOS_TMU_REG_INTCLEAR,
|
||||
};
|
||||
|
||||
struct exynos_tmu_init_data const exynos4210_default_tmu_data = {
|
||||
.tmu_data = {
|
||||
@ -75,40 +57,10 @@ struct exynos_tmu_init_data const exynos4210_default_tmu_data = {
|
||||
},
|
||||
.freq_tab_count = 2,
|
||||
.type = SOC_ARCH_EXYNOS4210,
|
||||
.registers = &exynos4210_tmu_registers,
|
||||
.features = TMU_SUPPORT_READY_STATUS,
|
||||
},
|
||||
},
|
||||
.tmu_count = 1,
|
||||
};
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_SOC_EXYNOS3250)
|
||||
static const struct exynos_tmu_registers exynos3250_tmu_registers = {
|
||||
.triminfo_data = EXYNOS_TMU_REG_TRIMINFO,
|
||||
.triminfo_ctrl[0] = EXYNOS_TMU_TRIMINFO_CON1,
|
||||
.triminfo_ctrl[1] = EXYNOS_TMU_TRIMINFO_CON2,
|
||||
.triminfo_ctrl_count = 2,
|
||||
.tmu_ctrl = EXYNOS_TMU_REG_CONTROL,
|
||||
.test_mux_addr_shift = EXYNOS4412_MUX_ADDR_SHIFT,
|
||||
.therm_trip_mode_shift = EXYNOS_TMU_TRIP_MODE_SHIFT,
|
||||
.therm_trip_mode_mask = EXYNOS_TMU_TRIP_MODE_MASK,
|
||||
.therm_trip_en_shift = EXYNOS_TMU_THERM_TRIP_EN_SHIFT,
|
||||
.tmu_status = EXYNOS_TMU_REG_STATUS,
|
||||
.tmu_cur_temp = EXYNOS_TMU_REG_CURRENT_TEMP,
|
||||
.threshold_th0 = EXYNOS_THD_TEMP_RISE,
|
||||
.threshold_th1 = EXYNOS_THD_TEMP_FALL,
|
||||
.tmu_inten = EXYNOS_TMU_REG_INTEN,
|
||||
.inten_rise0_shift = EXYNOS_TMU_INTEN_RISE0_SHIFT,
|
||||
.inten_rise1_shift = EXYNOS_TMU_INTEN_RISE1_SHIFT,
|
||||
.inten_rise2_shift = EXYNOS_TMU_INTEN_RISE2_SHIFT,
|
||||
.inten_fall0_shift = EXYNOS_TMU_INTEN_FALL0_SHIFT,
|
||||
.tmu_intstat = EXYNOS_TMU_REG_INTSTAT,
|
||||
.tmu_intclear = EXYNOS_TMU_REG_INTCLEAR,
|
||||
.emul_con = EXYNOS_EMUL_CON,
|
||||
.emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
|
||||
.emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
|
||||
};
|
||||
|
||||
#define EXYNOS3250_TMU_DATA \
|
||||
.threshold_falling = 10, \
|
||||
@ -144,54 +96,17 @@ static const struct exynos_tmu_registers exynos3250_tmu_registers = {
|
||||
.freq_clip_max = 400 * 1000, \
|
||||
.temp_level = 95, \
|
||||
}, \
|
||||
.freq_tab_count = 2, \
|
||||
.triminfo_reload[0] = EXYNOS_TRIMINFO_RELOAD_ENABLE, \
|
||||
.triminfo_reload[1] = EXYNOS_TRIMINFO_RELOAD_ENABLE, \
|
||||
.registers = &exynos3250_tmu_registers, \
|
||||
.features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_TRIM_RELOAD | \
|
||||
TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS | \
|
||||
TMU_SUPPORT_EMUL_TIME)
|
||||
#endif
|
||||
.freq_tab_count = 2
|
||||
|
||||
#if defined(CONFIG_SOC_EXYNOS3250)
|
||||
struct exynos_tmu_init_data const exynos3250_default_tmu_data = {
|
||||
.tmu_data = {
|
||||
{
|
||||
EXYNOS3250_TMU_DATA,
|
||||
.type = SOC_ARCH_EXYNOS3250,
|
||||
.test_mux = EXYNOS4412_MUX_ADDR_VALUE,
|
||||
},
|
||||
},
|
||||
.tmu_count = 1,
|
||||
};
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_SOC_EXYNOS4412) || defined(CONFIG_SOC_EXYNOS5250)
|
||||
static const struct exynos_tmu_registers exynos4412_tmu_registers = {
|
||||
.triminfo_data = EXYNOS_TMU_REG_TRIMINFO,
|
||||
.triminfo_ctrl[0] = EXYNOS_TMU_TRIMINFO_CON2,
|
||||
.triminfo_ctrl_count = 1,
|
||||
.tmu_ctrl = EXYNOS_TMU_REG_CONTROL,
|
||||
.test_mux_addr_shift = EXYNOS4412_MUX_ADDR_SHIFT,
|
||||
.therm_trip_mode_shift = EXYNOS_TMU_TRIP_MODE_SHIFT,
|
||||
.therm_trip_mode_mask = EXYNOS_TMU_TRIP_MODE_MASK,
|
||||
.therm_trip_en_shift = EXYNOS_TMU_THERM_TRIP_EN_SHIFT,
|
||||
.tmu_status = EXYNOS_TMU_REG_STATUS,
|
||||
.tmu_cur_temp = EXYNOS_TMU_REG_CURRENT_TEMP,
|
||||
.threshold_th0 = EXYNOS_THD_TEMP_RISE,
|
||||
.threshold_th1 = EXYNOS_THD_TEMP_FALL,
|
||||
.tmu_inten = EXYNOS_TMU_REG_INTEN,
|
||||
.inten_rise0_shift = EXYNOS_TMU_INTEN_RISE0_SHIFT,
|
||||
.inten_rise1_shift = EXYNOS_TMU_INTEN_RISE1_SHIFT,
|
||||
.inten_rise2_shift = EXYNOS_TMU_INTEN_RISE2_SHIFT,
|
||||
.inten_rise3_shift = EXYNOS_TMU_INTEN_RISE3_SHIFT,
|
||||
.inten_fall0_shift = EXYNOS_TMU_INTEN_FALL0_SHIFT,
|
||||
.tmu_intstat = EXYNOS_TMU_REG_INTSTAT,
|
||||
.tmu_intclear = EXYNOS_TMU_REG_INTCLEAR,
|
||||
.emul_con = EXYNOS_EMUL_CON,
|
||||
.emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
|
||||
.emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
|
||||
};
|
||||
|
||||
#define EXYNOS4412_TMU_DATA \
|
||||
.threshold_falling = 10, \
|
||||
@ -227,28 +142,18 @@ static const struct exynos_tmu_registers exynos4412_tmu_registers = {
|
||||
.freq_clip_max = 400 * 1000, \
|
||||
.temp_level = 95, \
|
||||
}, \
|
||||
.freq_tab_count = 2, \
|
||||
.triminfo_reload[0] = EXYNOS_TRIMINFO_RELOAD_ENABLE, \
|
||||
.registers = &exynos4412_tmu_registers, \
|
||||
.features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_TRIM_RELOAD | \
|
||||
TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS | \
|
||||
TMU_SUPPORT_EMUL_TIME)
|
||||
#endif
|
||||
.freq_tab_count = 2
|
||||
|
||||
#if defined(CONFIG_SOC_EXYNOS4412)
|
||||
struct exynos_tmu_init_data const exynos4412_default_tmu_data = {
|
||||
.tmu_data = {
|
||||
{
|
||||
EXYNOS4412_TMU_DATA,
|
||||
.type = SOC_ARCH_EXYNOS4412,
|
||||
.test_mux = EXYNOS4412_MUX_ADDR_VALUE,
|
||||
},
|
||||
},
|
||||
.tmu_count = 1,
|
||||
};
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_SOC_EXYNOS5250)
|
||||
struct exynos_tmu_init_data const exynos5250_default_tmu_data = {
|
||||
.tmu_data = {
|
||||
{
|
||||
@ -258,31 +163,6 @@ struct exynos_tmu_init_data const exynos5250_default_tmu_data = {
|
||||
},
|
||||
.tmu_count = 1,
|
||||
};
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_SOC_EXYNOS5260)
|
||||
static const struct exynos_tmu_registers exynos5260_tmu_registers = {
|
||||
.triminfo_data = EXYNOS_TMU_REG_TRIMINFO,
|
||||
.tmu_ctrl = EXYNOS_TMU_REG_CONTROL,
|
||||
.therm_trip_mode_shift = EXYNOS_TMU_TRIP_MODE_SHIFT,
|
||||
.therm_trip_mode_mask = EXYNOS_TMU_TRIP_MODE_MASK,
|
||||
.therm_trip_en_shift = EXYNOS_TMU_THERM_TRIP_EN_SHIFT,
|
||||
.tmu_status = EXYNOS_TMU_REG_STATUS,
|
||||
.tmu_cur_temp = EXYNOS_TMU_REG_CURRENT_TEMP,
|
||||
.threshold_th0 = EXYNOS_THD_TEMP_RISE,
|
||||
.threshold_th1 = EXYNOS_THD_TEMP_FALL,
|
||||
.tmu_inten = EXYNOS5260_TMU_REG_INTEN,
|
||||
.inten_rise0_shift = EXYNOS_TMU_INTEN_RISE0_SHIFT,
|
||||
.inten_rise1_shift = EXYNOS_TMU_INTEN_RISE1_SHIFT,
|
||||
.inten_rise2_shift = EXYNOS_TMU_INTEN_RISE2_SHIFT,
|
||||
.inten_rise3_shift = EXYNOS_TMU_INTEN_RISE3_SHIFT,
|
||||
.inten_fall0_shift = EXYNOS_TMU_INTEN_FALL0_SHIFT,
|
||||
.tmu_intstat = EXYNOS5260_TMU_REG_INTSTAT,
|
||||
.tmu_intclear = EXYNOS5260_TMU_REG_INTCLEAR,
|
||||
.emul_con = EXYNOS5260_EMUL_CON,
|
||||
.emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
|
||||
.emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
|
||||
};
|
||||
|
||||
#define __EXYNOS5260_TMU_DATA \
|
||||
.threshold_falling = 10, \
|
||||
@ -319,13 +199,10 @@ static const struct exynos_tmu_registers exynos5260_tmu_registers = {
|
||||
.temp_level = 103, \
|
||||
}, \
|
||||
.freq_tab_count = 2, \
|
||||
.registers = &exynos5260_tmu_registers, \
|
||||
|
||||
#define EXYNOS5260_TMU_DATA \
|
||||
__EXYNOS5260_TMU_DATA \
|
||||
.type = SOC_ARCH_EXYNOS5260, \
|
||||
.features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_FALLING_TRIP | \
|
||||
TMU_SUPPORT_READY_STATUS | TMU_SUPPORT_EMUL_TIME)
|
||||
.type = SOC_ARCH_EXYNOS5260
|
||||
|
||||
struct exynos_tmu_init_data const exynos5260_default_tmu_data = {
|
||||
.tmu_data = {
|
||||
@ -337,82 +214,14 @@ struct exynos_tmu_init_data const exynos5260_default_tmu_data = {
|
||||
},
|
||||
.tmu_count = 5,
|
||||
};
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_SOC_EXYNOS5420)
|
||||
static const struct exynos_tmu_registers exynos5420_tmu_registers = {
|
||||
.triminfo_data = EXYNOS_TMU_REG_TRIMINFO,
|
||||
.tmu_ctrl = EXYNOS_TMU_REG_CONTROL,
|
||||
.therm_trip_mode_shift = EXYNOS_TMU_TRIP_MODE_SHIFT,
|
||||
.therm_trip_mode_mask = EXYNOS_TMU_TRIP_MODE_MASK,
|
||||
.therm_trip_en_shift = EXYNOS_TMU_THERM_TRIP_EN_SHIFT,
|
||||
.tmu_status = EXYNOS_TMU_REG_STATUS,
|
||||
.tmu_cur_temp = EXYNOS_TMU_REG_CURRENT_TEMP,
|
||||
.threshold_th0 = EXYNOS_THD_TEMP_RISE,
|
||||
.threshold_th1 = EXYNOS_THD_TEMP_FALL,
|
||||
.tmu_inten = EXYNOS_TMU_REG_INTEN,
|
||||
.inten_rise0_shift = EXYNOS_TMU_INTEN_RISE0_SHIFT,
|
||||
.inten_rise1_shift = EXYNOS_TMU_INTEN_RISE1_SHIFT,
|
||||
.inten_rise2_shift = EXYNOS_TMU_INTEN_RISE2_SHIFT,
|
||||
/* INTEN_RISE3 Not availble in exynos5420 */
|
||||
.inten_rise3_shift = EXYNOS_TMU_INTEN_RISE3_SHIFT,
|
||||
.inten_fall0_shift = EXYNOS_TMU_INTEN_FALL0_SHIFT,
|
||||
.tmu_intstat = EXYNOS_TMU_REG_INTSTAT,
|
||||
.tmu_intclear = EXYNOS_TMU_REG_INTCLEAR,
|
||||
.emul_con = EXYNOS_EMUL_CON,
|
||||
.emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
|
||||
.emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
|
||||
};
|
||||
|
||||
#define __EXYNOS5420_TMU_DATA \
|
||||
.threshold_falling = 10, \
|
||||
.trigger_levels[0] = 85, \
|
||||
.trigger_levels[1] = 103, \
|
||||
.trigger_levels[2] = 110, \
|
||||
.trigger_levels[3] = 120, \
|
||||
.trigger_enable[0] = true, \
|
||||
.trigger_enable[1] = true, \
|
||||
.trigger_enable[2] = true, \
|
||||
.trigger_enable[3] = false, \
|
||||
.trigger_type[0] = THROTTLE_ACTIVE, \
|
||||
.trigger_type[1] = THROTTLE_ACTIVE, \
|
||||
.trigger_type[2] = SW_TRIP, \
|
||||
.trigger_type[3] = HW_TRIP, \
|
||||
.max_trigger_level = 4, \
|
||||
.non_hw_trigger_levels = 3, \
|
||||
.gain = 8, \
|
||||
.reference_voltage = 16, \
|
||||
.noise_cancel_mode = 4, \
|
||||
.cal_type = TYPE_ONE_POINT_TRIMMING, \
|
||||
.efuse_value = 55, \
|
||||
.min_efuse_value = 40, \
|
||||
.max_efuse_value = 100, \
|
||||
.first_point_trim = 25, \
|
||||
.second_point_trim = 85, \
|
||||
.default_temp_offset = 50, \
|
||||
.freq_tab[0] = { \
|
||||
.freq_clip_max = 800 * 1000, \
|
||||
.temp_level = 85, \
|
||||
}, \
|
||||
.freq_tab[1] = { \
|
||||
.freq_clip_max = 200 * 1000, \
|
||||
.temp_level = 103, \
|
||||
}, \
|
||||
.freq_tab_count = 2, \
|
||||
.registers = &exynos5420_tmu_registers, \
|
||||
|
||||
#define EXYNOS5420_TMU_DATA \
|
||||
__EXYNOS5420_TMU_DATA \
|
||||
.type = SOC_ARCH_EXYNOS5250, \
|
||||
.features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_FALLING_TRIP | \
|
||||
TMU_SUPPORT_READY_STATUS | TMU_SUPPORT_EMUL_TIME)
|
||||
__EXYNOS5260_TMU_DATA \
|
||||
.type = SOC_ARCH_EXYNOS5420
|
||||
|
||||
#define EXYNOS5420_TMU_DATA_SHARED \
|
||||
__EXYNOS5420_TMU_DATA \
|
||||
.type = SOC_ARCH_EXYNOS5420_TRIMINFO, \
|
||||
.features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_FALLING_TRIP | \
|
||||
TMU_SUPPORT_READY_STATUS | TMU_SUPPORT_EMUL_TIME | \
|
||||
TMU_SUPPORT_ADDRESS_MULTIPLE)
|
||||
__EXYNOS5260_TMU_DATA \
|
||||
.type = SOC_ARCH_EXYNOS5420_TRIMINFO
|
||||
|
||||
struct exynos_tmu_init_data const exynos5420_default_tmu_data = {
|
||||
.tmu_data = {
|
||||
@ -424,34 +233,6 @@ struct exynos_tmu_init_data const exynos5420_default_tmu_data = {
|
||||
},
|
||||
.tmu_count = 5,
|
||||
};
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_SOC_EXYNOS5440)
|
||||
static const struct exynos_tmu_registers exynos5440_tmu_registers = {
|
||||
.triminfo_data = EXYNOS5440_TMU_S0_7_TRIM,
|
||||
.tmu_ctrl = EXYNOS5440_TMU_S0_7_CTRL,
|
||||
.therm_trip_mode_shift = EXYNOS_TMU_TRIP_MODE_SHIFT,
|
||||
.therm_trip_mode_mask = EXYNOS_TMU_TRIP_MODE_MASK,
|
||||
.therm_trip_en_shift = EXYNOS_TMU_THERM_TRIP_EN_SHIFT,
|
||||
.tmu_status = EXYNOS5440_TMU_S0_7_STATUS,
|
||||
.tmu_cur_temp = EXYNOS5440_TMU_S0_7_TEMP,
|
||||
.threshold_th0 = EXYNOS5440_TMU_S0_7_TH0,
|
||||
.threshold_th1 = EXYNOS5440_TMU_S0_7_TH1,
|
||||
.threshold_th2 = EXYNOS5440_TMU_S0_7_TH2,
|
||||
.threshold_th3_l0_shift = EXYNOS5440_TMU_TH_RISE4_SHIFT,
|
||||
.tmu_inten = EXYNOS5440_TMU_S0_7_IRQEN,
|
||||
.inten_rise0_shift = EXYNOS5440_TMU_INTEN_RISE0_SHIFT,
|
||||
.inten_rise1_shift = EXYNOS5440_TMU_INTEN_RISE1_SHIFT,
|
||||
.inten_rise2_shift = EXYNOS5440_TMU_INTEN_RISE2_SHIFT,
|
||||
.inten_rise3_shift = EXYNOS5440_TMU_INTEN_RISE3_SHIFT,
|
||||
.inten_fall0_shift = EXYNOS5440_TMU_INTEN_FALL0_SHIFT,
|
||||
.tmu_intstat = EXYNOS5440_TMU_S0_7_IRQ,
|
||||
.tmu_intclear = EXYNOS5440_TMU_S0_7_IRQ,
|
||||
.tmu_irqstatus = EXYNOS5440_TMU_IRQ_STATUS,
|
||||
.emul_con = EXYNOS5440_TMU_S0_7_DEBUG,
|
||||
.emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
|
||||
.tmu_pmin = EXYNOS5440_TMU_PMIN,
|
||||
};
|
||||
|
||||
#define EXYNOS5440_TMU_DATA \
|
||||
.trigger_levels[0] = 100, \
|
||||
@ -471,10 +252,7 @@ static const struct exynos_tmu_registers exynos5440_tmu_registers = {
|
||||
.first_point_trim = 25, \
|
||||
.second_point_trim = 70, \
|
||||
.default_temp_offset = 25, \
|
||||
.type = SOC_ARCH_EXYNOS5440, \
|
||||
.registers = &exynos5440_tmu_registers, \
|
||||
.features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_FALLING_TRIP | \
|
||||
TMU_SUPPORT_MULTI_INST | TMU_SUPPORT_ADDRESS_MULTIPLE),
|
||||
.type = SOC_ARCH_EXYNOS5440
|
||||
|
||||
struct exynos_tmu_init_data const exynos5440_default_tmu_data = {
|
||||
.tmu_data = {
|
||||
@ -484,4 +262,3 @@ struct exynos_tmu_init_data const exynos5440_default_tmu_data = {
|
||||
},
|
||||
.tmu_count = 3,
|
||||
};
|
||||
#endif
|
||||
|
@ -1,159 +0,0 @@
|
||||
/*
|
||||
* exynos_tmu_data.h - Samsung EXYNOS tmu data header file
|
||||
*
|
||||
* Copyright (C) 2013 Samsung Electronics
|
||||
* Amit Daniel Kachhap <amit.daniel@samsung.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef _EXYNOS_TMU_DATA_H
|
||||
#define _EXYNOS_TMU_DATA_H
|
||||
|
||||
/* Exynos generic registers */
|
||||
#define EXYNOS_TMU_REG_TRIMINFO 0x0
|
||||
#define EXYNOS_TMU_REG_CONTROL 0x20
|
||||
#define EXYNOS_TMU_REG_STATUS 0x28
|
||||
#define EXYNOS_TMU_REG_CURRENT_TEMP 0x40
|
||||
#define EXYNOS_TMU_REG_INTEN 0x70
|
||||
#define EXYNOS_TMU_REG_INTSTAT 0x74
|
||||
#define EXYNOS_TMU_REG_INTCLEAR 0x78
|
||||
|
||||
#define EXYNOS_TMU_TEMP_MASK 0xff
|
||||
#define EXYNOS_TMU_REF_VOLTAGE_SHIFT 24
|
||||
#define EXYNOS_TMU_REF_VOLTAGE_MASK 0x1f
|
||||
#define EXYNOS_TMU_BUF_SLOPE_SEL_MASK 0xf
|
||||
#define EXYNOS_TMU_BUF_SLOPE_SEL_SHIFT 8
|
||||
#define EXYNOS_TMU_CORE_EN_SHIFT 0
|
||||
|
||||
/* Exynos3250 specific registers */
|
||||
#define EXYNOS_TMU_TRIMINFO_CON1 0x10
|
||||
|
||||
/* Exynos4210 specific registers */
|
||||
#define EXYNOS4210_TMU_REG_THRESHOLD_TEMP 0x44
|
||||
#define EXYNOS4210_TMU_REG_TRIG_LEVEL0 0x50
|
||||
|
||||
/* Exynos5250, Exynos4412, Exynos3250 specific registers */
|
||||
#define EXYNOS_TMU_TRIMINFO_CON2 0x14
|
||||
#define EXYNOS_THD_TEMP_RISE 0x50
|
||||
#define EXYNOS_THD_TEMP_FALL 0x54
|
||||
#define EXYNOS_EMUL_CON 0x80
|
||||
|
||||
#define EXYNOS_TRIMINFO_RELOAD_ENABLE 1
|
||||
#define EXYNOS_TRIMINFO_25_SHIFT 0
|
||||
#define EXYNOS_TRIMINFO_85_SHIFT 8
|
||||
#define EXYNOS_TMU_TRIP_MODE_SHIFT 13
|
||||
#define EXYNOS_TMU_TRIP_MODE_MASK 0x7
|
||||
#define EXYNOS_TMU_THERM_TRIP_EN_SHIFT 12
|
||||
|
||||
#define EXYNOS_TMU_INTEN_RISE0_SHIFT 0
|
||||
#define EXYNOS_TMU_INTEN_RISE1_SHIFT 4
|
||||
#define EXYNOS_TMU_INTEN_RISE2_SHIFT 8
|
||||
#define EXYNOS_TMU_INTEN_RISE3_SHIFT 12
|
||||
#define EXYNOS_TMU_INTEN_FALL0_SHIFT 16
|
||||
|
||||
#define EXYNOS_EMUL_TIME 0x57F0
|
||||
#define EXYNOS_EMUL_TIME_MASK 0xffff
|
||||
#define EXYNOS_EMUL_TIME_SHIFT 16
|
||||
#define EXYNOS_EMUL_DATA_SHIFT 8
|
||||
#define EXYNOS_EMUL_DATA_MASK 0xFF
|
||||
#define EXYNOS_EMUL_ENABLE 0x1
|
||||
|
||||
#define EXYNOS_MAX_TRIGGER_PER_REG 4
|
||||
|
||||
/* Exynos5260 specific */
|
||||
#define EXYNOS5260_TMU_REG_INTEN 0xC0
|
||||
#define EXYNOS5260_TMU_REG_INTSTAT 0xC4
|
||||
#define EXYNOS5260_TMU_REG_INTCLEAR 0xC8
|
||||
#define EXYNOS5260_EMUL_CON 0x100
|
||||
|
||||
/* Exynos4412 specific */
|
||||
#define EXYNOS4412_MUX_ADDR_VALUE 6
|
||||
#define EXYNOS4412_MUX_ADDR_SHIFT 20
|
||||
|
||||
/*exynos5440 specific registers*/
|
||||
#define EXYNOS5440_TMU_S0_7_TRIM 0x000
|
||||
#define EXYNOS5440_TMU_S0_7_CTRL 0x020
|
||||
#define EXYNOS5440_TMU_S0_7_DEBUG 0x040
|
||||
#define EXYNOS5440_TMU_S0_7_STATUS 0x060
|
||||
#define EXYNOS5440_TMU_S0_7_TEMP 0x0f0
|
||||
#define EXYNOS5440_TMU_S0_7_TH0 0x110
|
||||
#define EXYNOS5440_TMU_S0_7_TH1 0x130
|
||||
#define EXYNOS5440_TMU_S0_7_TH2 0x150
|
||||
#define EXYNOS5440_TMU_S0_7_IRQEN 0x210
|
||||
#define EXYNOS5440_TMU_S0_7_IRQ 0x230
|
||||
/* exynos5440 common registers */
|
||||
#define EXYNOS5440_TMU_IRQ_STATUS 0x000
|
||||
#define EXYNOS5440_TMU_PMIN 0x004
|
||||
|
||||
#define EXYNOS5440_TMU_INTEN_RISE0_SHIFT 0
|
||||
#define EXYNOS5440_TMU_INTEN_RISE1_SHIFT 1
|
||||
#define EXYNOS5440_TMU_INTEN_RISE2_SHIFT 2
|
||||
#define EXYNOS5440_TMU_INTEN_RISE3_SHIFT 3
|
||||
#define EXYNOS5440_TMU_INTEN_FALL0_SHIFT 4
|
||||
#define EXYNOS5440_TMU_TH_RISE4_SHIFT 24
|
||||
#define EXYNOS5440_EFUSE_SWAP_OFFSET 8
|
||||
|
||||
#if defined(CONFIG_SOC_EXYNOS3250)
|
||||
extern struct exynos_tmu_init_data const exynos3250_default_tmu_data;
|
||||
#define EXYNOS3250_TMU_DRV_DATA (&exynos3250_default_tmu_data)
|
||||
#else
|
||||
#define EXYNOS3250_TMU_DRV_DATA (NULL)
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_CPU_EXYNOS4210)
|
||||
extern struct exynos_tmu_init_data const exynos4210_default_tmu_data;
|
||||
#define EXYNOS4210_TMU_DRV_DATA (&exynos4210_default_tmu_data)
|
||||
#else
|
||||
#define EXYNOS4210_TMU_DRV_DATA (NULL)
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_SOC_EXYNOS4412)
|
||||
extern struct exynos_tmu_init_data const exynos4412_default_tmu_data;
|
||||
#define EXYNOS4412_TMU_DRV_DATA (&exynos4412_default_tmu_data)
|
||||
#else
|
||||
#define EXYNOS4412_TMU_DRV_DATA (NULL)
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_SOC_EXYNOS5250)
|
||||
extern struct exynos_tmu_init_data const exynos5250_default_tmu_data;
|
||||
#define EXYNOS5250_TMU_DRV_DATA (&exynos5250_default_tmu_data)
|
||||
#else
|
||||
#define EXYNOS5250_TMU_DRV_DATA (NULL)
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_SOC_EXYNOS5260)
|
||||
extern struct exynos_tmu_init_data const exynos5260_default_tmu_data;
|
||||
#define EXYNOS5260_TMU_DRV_DATA (&exynos5260_default_tmu_data)
|
||||
#else
|
||||
#define EXYNOS5260_TMU_DRV_DATA (NULL)
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_SOC_EXYNOS5420)
|
||||
extern struct exynos_tmu_init_data const exynos5420_default_tmu_data;
|
||||
#define EXYNOS5420_TMU_DRV_DATA (&exynos5420_default_tmu_data)
|
||||
#else
|
||||
#define EXYNOS5420_TMU_DRV_DATA (NULL)
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_SOC_EXYNOS5440)
|
||||
extern struct exynos_tmu_init_data const exynos5440_default_tmu_data;
|
||||
#define EXYNOS5440_TMU_DRV_DATA (&exynos5440_default_tmu_data)
|
||||
#else
|
||||
#define EXYNOS5440_TMU_DRV_DATA (NULL)
|
||||
#endif
|
||||
|
||||
#endif /*_EXYNOS_TMU_DATA_H*/
|
476
drivers/thermal/tegra_soctherm.c
Normal file
476
drivers/thermal/tegra_soctherm.c
Normal file
@ -0,0 +1,476 @@
|
||||
/*
|
||||
* Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
|
||||
*
|
||||
* Author:
|
||||
* Mikko Perttunen <mperttunen@nvidia.com>
|
||||
*
|
||||
* This software is licensed under the terms of the GNU General Public
|
||||
* License version 2, as published by the Free Software Foundation, and
|
||||
* may be copied, distributed, and modified under those terms.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/bitops.h>
|
||||
#include <linux/clk.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/reset.h>
|
||||
#include <linux/thermal.h>
|
||||
|
||||
#include <soc/tegra/fuse.h>
|
||||
|
||||
#define SENSOR_CONFIG0 0
|
||||
#define SENSOR_CONFIG0_STOP BIT(0)
|
||||
#define SENSOR_CONFIG0_TALL_SHIFT 8
|
||||
#define SENSOR_CONFIG0_TCALC_OVER BIT(4)
|
||||
#define SENSOR_CONFIG0_OVER BIT(3)
|
||||
#define SENSOR_CONFIG0_CPTR_OVER BIT(2)
|
||||
|
||||
#define SENSOR_CONFIG1 4
|
||||
#define SENSOR_CONFIG1_TSAMPLE_SHIFT 0
|
||||
#define SENSOR_CONFIG1_TIDDQ_EN_SHIFT 15
|
||||
#define SENSOR_CONFIG1_TEN_COUNT_SHIFT 24
|
||||
#define SENSOR_CONFIG1_TEMP_ENABLE BIT(31)
|
||||
|
||||
#define SENSOR_CONFIG2 8
|
||||
#define SENSOR_CONFIG2_THERMA_SHIFT 16
|
||||
#define SENSOR_CONFIG2_THERMB_SHIFT 0
|
||||
|
||||
#define SENSOR_PDIV 0x1c0
|
||||
#define SENSOR_PDIV_T124 0x8888
|
||||
#define SENSOR_HOTSPOT_OFF 0x1c4
|
||||
#define SENSOR_HOTSPOT_OFF_T124 0x00060600
|
||||
#define SENSOR_TEMP1 0x1c8
|
||||
#define SENSOR_TEMP2 0x1cc
|
||||
|
||||
#define SENSOR_TEMP_MASK 0xffff
|
||||
#define READBACK_VALUE_MASK 0xff00
|
||||
#define READBACK_VALUE_SHIFT 8
|
||||
#define READBACK_ADD_HALF BIT(7)
|
||||
#define READBACK_NEGATE BIT(1)
|
||||
|
||||
#define FUSE_TSENSOR8_CALIB 0x180
|
||||
#define FUSE_SPARE_REALIGNMENT_REG_0 0x1fc
|
||||
|
||||
#define FUSE_TSENSOR_CALIB_CP_TS_BASE_MASK 0x1fff
|
||||
#define FUSE_TSENSOR_CALIB_FT_TS_BASE_MASK (0x1fff << 13)
|
||||
#define FUSE_TSENSOR_CALIB_FT_TS_BASE_SHIFT 13
|
||||
|
||||
#define FUSE_TSENSOR8_CALIB_CP_TS_BASE_MASK 0x3ff
|
||||
#define FUSE_TSENSOR8_CALIB_FT_TS_BASE_MASK (0x7ff << 10)
|
||||
#define FUSE_TSENSOR8_CALIB_FT_TS_BASE_SHIFT 10
|
||||
|
||||
#define FUSE_SPARE_REALIGNMENT_REG_SHIFT_CP_MASK 0x3f
|
||||
#define FUSE_SPARE_REALIGNMENT_REG_SHIFT_FT_MASK (0x1f << 21)
|
||||
#define FUSE_SPARE_REALIGNMENT_REG_SHIFT_FT_SHIFT 21
|
||||
|
||||
#define NOMINAL_CALIB_FT_T124 105
|
||||
#define NOMINAL_CALIB_CP_T124 25
|
||||
|
||||
struct tegra_tsensor_configuration {
|
||||
u32 tall, tsample, tiddq_en, ten_count, pdiv, tsample_ate, pdiv_ate;
|
||||
};
|
||||
|
||||
struct tegra_tsensor {
|
||||
const struct tegra_tsensor_configuration *config;
|
||||
u32 base, calib_fuse_offset;
|
||||
/* Correction values used to modify values read from calibration fuses */
|
||||
s32 fuse_corr_alpha, fuse_corr_beta;
|
||||
};
|
||||
|
||||
struct tegra_thermctl_zone {
|
||||
void __iomem *reg;
|
||||
unsigned int shift;
|
||||
};
|
||||
|
||||
static const struct tegra_tsensor_configuration t124_tsensor_config = {
|
||||
.tall = 16300,
|
||||
.tsample = 120,
|
||||
.tiddq_en = 1,
|
||||
.ten_count = 1,
|
||||
.pdiv = 8,
|
||||
.tsample_ate = 480,
|
||||
.pdiv_ate = 8
|
||||
};
|
||||
|
||||
static const struct tegra_tsensor t124_tsensors[] = {
|
||||
{
|
||||
.config = &t124_tsensor_config,
|
||||
.base = 0xc0,
|
||||
.calib_fuse_offset = 0x098,
|
||||
.fuse_corr_alpha = 1135400,
|
||||
.fuse_corr_beta = -6266900,
|
||||
},
|
||||
{
|
||||
.config = &t124_tsensor_config,
|
||||
.base = 0xe0,
|
||||
.calib_fuse_offset = 0x084,
|
||||
.fuse_corr_alpha = 1122220,
|
||||
.fuse_corr_beta = -5700700,
|
||||
},
|
||||
{
|
||||
.config = &t124_tsensor_config,
|
||||
.base = 0x100,
|
||||
.calib_fuse_offset = 0x088,
|
||||
.fuse_corr_alpha = 1127000,
|
||||
.fuse_corr_beta = -6768200,
|
||||
},
|
||||
{
|
||||
.config = &t124_tsensor_config,
|
||||
.base = 0x120,
|
||||
.calib_fuse_offset = 0x12c,
|
||||
.fuse_corr_alpha = 1110900,
|
||||
.fuse_corr_beta = -6232000,
|
||||
},
|
||||
{
|
||||
.config = &t124_tsensor_config,
|
||||
.base = 0x140,
|
||||
.calib_fuse_offset = 0x158,
|
||||
.fuse_corr_alpha = 1122300,
|
||||
.fuse_corr_beta = -5936400,
|
||||
},
|
||||
{
|
||||
.config = &t124_tsensor_config,
|
||||
.base = 0x160,
|
||||
.calib_fuse_offset = 0x15c,
|
||||
.fuse_corr_alpha = 1145700,
|
||||
.fuse_corr_beta = -7124600,
|
||||
},
|
||||
{
|
||||
.config = &t124_tsensor_config,
|
||||
.base = 0x180,
|
||||
.calib_fuse_offset = 0x154,
|
||||
.fuse_corr_alpha = 1120100,
|
||||
.fuse_corr_beta = -6000500,
|
||||
},
|
||||
{
|
||||
.config = &t124_tsensor_config,
|
||||
.base = 0x1a0,
|
||||
.calib_fuse_offset = 0x160,
|
||||
.fuse_corr_alpha = 1106500,
|
||||
.fuse_corr_beta = -6729300,
|
||||
},
|
||||
};
|
||||
|
||||
struct tegra_soctherm {
|
||||
struct reset_control *reset;
|
||||
struct clk *clock_tsensor;
|
||||
struct clk *clock_soctherm;
|
||||
void __iomem *regs;
|
||||
|
||||
struct thermal_zone_device *thermctl_tzs[4];
|
||||
};
|
||||
|
||||
struct tsensor_shared_calibration {
|
||||
u32 base_cp, base_ft;
|
||||
u32 actual_temp_cp, actual_temp_ft;
|
||||
};
|
||||
|
||||
static int calculate_shared_calibration(struct tsensor_shared_calibration *r)
|
||||
{
|
||||
u32 val, shifted_cp, shifted_ft;
|
||||
int err;
|
||||
|
||||
err = tegra_fuse_readl(FUSE_TSENSOR8_CALIB, &val);
|
||||
if (err)
|
||||
return err;
|
||||
r->base_cp = val & FUSE_TSENSOR8_CALIB_CP_TS_BASE_MASK;
|
||||
r->base_ft = (val & FUSE_TSENSOR8_CALIB_FT_TS_BASE_MASK)
|
||||
>> FUSE_TSENSOR8_CALIB_FT_TS_BASE_SHIFT;
|
||||
val = ((val & FUSE_SPARE_REALIGNMENT_REG_SHIFT_FT_MASK)
|
||||
>> FUSE_SPARE_REALIGNMENT_REG_SHIFT_FT_SHIFT);
|
||||
shifted_ft = sign_extend32(val, 4);
|
||||
|
||||
err = tegra_fuse_readl(FUSE_SPARE_REALIGNMENT_REG_0, &val);
|
||||
if (err)
|
||||
return err;
|
||||
shifted_cp = sign_extend32(val, 5);
|
||||
|
||||
r->actual_temp_cp = 2 * NOMINAL_CALIB_CP_T124 + shifted_cp;
|
||||
r->actual_temp_ft = 2 * NOMINAL_CALIB_FT_T124 + shifted_ft;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static s64 div64_s64_precise(s64 a, s64 b)
|
||||
{
|
||||
s64 r, al;
|
||||
|
||||
/* Scale up for increased precision division */
|
||||
al = a << 16;
|
||||
|
||||
r = div64_s64(al * 2 + 1, 2 * b);
|
||||
return r >> 16;
|
||||
}
|
||||
|
||||
static int
|
||||
calculate_tsensor_calibration(const struct tegra_tsensor *sensor,
|
||||
const struct tsensor_shared_calibration *shared,
|
||||
u32 *calib)
|
||||
{
|
||||
u32 val;
|
||||
s32 actual_tsensor_ft, actual_tsensor_cp, delta_sens, delta_temp,
|
||||
mult, div;
|
||||
s16 therma, thermb;
|
||||
s64 tmp;
|
||||
int err;
|
||||
|
||||
err = tegra_fuse_readl(sensor->calib_fuse_offset, &val);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
actual_tsensor_cp = (shared->base_cp * 64) + sign_extend32(val, 12);
|
||||
val = (val & FUSE_TSENSOR_CALIB_FT_TS_BASE_MASK)
|
||||
>> FUSE_TSENSOR_CALIB_FT_TS_BASE_SHIFT;
|
||||
actual_tsensor_ft = (shared->base_ft * 32) + sign_extend32(val, 12);
|
||||
|
||||
delta_sens = actual_tsensor_ft - actual_tsensor_cp;
|
||||
delta_temp = shared->actual_temp_ft - shared->actual_temp_cp;
|
||||
|
||||
mult = sensor->config->pdiv * sensor->config->tsample_ate;
|
||||
div = sensor->config->tsample * sensor->config->pdiv_ate;
|
||||
|
||||
therma = div64_s64_precise((s64) delta_temp * (1LL << 13) * mult,
|
||||
(s64) delta_sens * div);
|
||||
|
||||
tmp = (s64)actual_tsensor_ft * shared->actual_temp_cp -
|
||||
(s64)actual_tsensor_cp * shared->actual_temp_ft;
|
||||
thermb = div64_s64_precise(tmp, (s64)delta_sens);
|
||||
|
||||
therma = div64_s64_precise((s64)therma * sensor->fuse_corr_alpha,
|
||||
(s64)1000000LL);
|
||||
thermb = div64_s64_precise((s64)thermb * sensor->fuse_corr_alpha +
|
||||
sensor->fuse_corr_beta, (s64)1000000LL);
|
||||
|
||||
*calib = ((u16)therma << SENSOR_CONFIG2_THERMA_SHIFT) |
|
||||
((u16)thermb << SENSOR_CONFIG2_THERMB_SHIFT);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int enable_tsensor(struct tegra_soctherm *tegra,
|
||||
const struct tegra_tsensor *sensor,
|
||||
const struct tsensor_shared_calibration *shared)
|
||||
{
|
||||
void __iomem *base = tegra->regs + sensor->base;
|
||||
unsigned int val;
|
||||
u32 calib;
|
||||
int err;
|
||||
|
||||
err = calculate_tsensor_calibration(sensor, shared, &calib);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
val = sensor->config->tall << SENSOR_CONFIG0_TALL_SHIFT;
|
||||
writel(val, base + SENSOR_CONFIG0);
|
||||
|
||||
val = (sensor->config->tsample - 1) << SENSOR_CONFIG1_TSAMPLE_SHIFT;
|
||||
val |= sensor->config->tiddq_en << SENSOR_CONFIG1_TIDDQ_EN_SHIFT;
|
||||
val |= sensor->config->ten_count << SENSOR_CONFIG1_TEN_COUNT_SHIFT;
|
||||
val |= SENSOR_CONFIG1_TEMP_ENABLE;
|
||||
writel(val, base + SENSOR_CONFIG1);
|
||||
|
||||
writel(calib, base + SENSOR_CONFIG2);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Translate from soctherm readback format to millicelsius.
|
||||
* The soctherm readback format in bits is as follows:
|
||||
* TTTTTTTT H______N
|
||||
* where T's contain the temperature in Celsius,
|
||||
* H denotes an addition of 0.5 Celsius and N denotes negation
|
||||
* of the final value.
|
||||
*/
|
||||
static long translate_temp(u16 val)
|
||||
{
|
||||
long t;
|
||||
|
||||
t = ((val & READBACK_VALUE_MASK) >> READBACK_VALUE_SHIFT) * 1000;
|
||||
if (val & READBACK_ADD_HALF)
|
||||
t += 500;
|
||||
if (val & READBACK_NEGATE)
|
||||
t *= -1;
|
||||
|
||||
return t;
|
||||
}
|
||||
|
||||
static int tegra_thermctl_get_temp(void *data, long *out_temp)
|
||||
{
|
||||
struct tegra_thermctl_zone *zone = data;
|
||||
u32 val;
|
||||
|
||||
val = (readl(zone->reg) >> zone->shift) & SENSOR_TEMP_MASK;
|
||||
*out_temp = translate_temp(val);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct thermal_zone_of_device_ops tegra_of_thermal_ops = {
|
||||
.get_temp = tegra_thermctl_get_temp,
|
||||
};
|
||||
|
||||
static const struct of_device_id tegra_soctherm_of_match[] = {
|
||||
{ .compatible = "nvidia,tegra124-soctherm" },
|
||||
{ },
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, tegra_soctherm_of_match);
|
||||
|
||||
struct thermctl_zone_desc {
|
||||
unsigned int offset;
|
||||
unsigned int shift;
|
||||
};
|
||||
|
||||
static const struct thermctl_zone_desc t124_thermctl_temp_zones[] = {
|
||||
{ SENSOR_TEMP1, 16 },
|
||||
{ SENSOR_TEMP2, 16 },
|
||||
{ SENSOR_TEMP1, 0 },
|
||||
{ SENSOR_TEMP2, 0 }
|
||||
};
|
||||
|
||||
static int tegra_soctherm_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct tegra_soctherm *tegra;
|
||||
struct thermal_zone_device *tz;
|
||||
struct tsensor_shared_calibration shared_calib;
|
||||
struct resource *res;
|
||||
unsigned int i;
|
||||
int err;
|
||||
|
||||
const struct tegra_tsensor *tsensors = t124_tsensors;
|
||||
|
||||
tegra = devm_kzalloc(&pdev->dev, sizeof(*tegra), GFP_KERNEL);
|
||||
if (!tegra)
|
||||
return -ENOMEM;
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
tegra->regs = devm_ioremap_resource(&pdev->dev, res);
|
||||
if (IS_ERR(tegra->regs))
|
||||
return PTR_ERR(tegra->regs);
|
||||
|
||||
tegra->reset = devm_reset_control_get(&pdev->dev, "soctherm");
|
||||
if (IS_ERR(tegra->reset)) {
|
||||
dev_err(&pdev->dev, "can't get soctherm reset\n");
|
||||
return PTR_ERR(tegra->reset);
|
||||
}
|
||||
|
||||
tegra->clock_tsensor = devm_clk_get(&pdev->dev, "tsensor");
|
||||
if (IS_ERR(tegra->clock_tsensor)) {
|
||||
dev_err(&pdev->dev, "can't get tsensor clock\n");
|
||||
return PTR_ERR(tegra->clock_tsensor);
|
||||
}
|
||||
|
||||
tegra->clock_soctherm = devm_clk_get(&pdev->dev, "soctherm");
|
||||
if (IS_ERR(tegra->clock_soctherm)) {
|
||||
dev_err(&pdev->dev, "can't get soctherm clock\n");
|
||||
return PTR_ERR(tegra->clock_soctherm);
|
||||
}
|
||||
|
||||
reset_control_assert(tegra->reset);
|
||||
|
||||
err = clk_prepare_enable(tegra->clock_soctherm);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
err = clk_prepare_enable(tegra->clock_tsensor);
|
||||
if (err) {
|
||||
clk_disable_unprepare(tegra->clock_soctherm);
|
||||
return err;
|
||||
}
|
||||
|
||||
reset_control_deassert(tegra->reset);
|
||||
|
||||
/* Initialize raw sensors */
|
||||
|
||||
err = calculate_shared_calibration(&shared_calib);
|
||||
if (err)
|
||||
goto disable_clocks;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(t124_tsensors); ++i) {
|
||||
err = enable_tsensor(tegra, tsensors + i, &shared_calib);
|
||||
if (err)
|
||||
goto disable_clocks;
|
||||
}
|
||||
|
||||
writel(SENSOR_PDIV_T124, tegra->regs + SENSOR_PDIV);
|
||||
writel(SENSOR_HOTSPOT_OFF_T124, tegra->regs + SENSOR_HOTSPOT_OFF);
|
||||
|
||||
/* Initialize thermctl sensors */
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(tegra->thermctl_tzs); ++i) {
|
||||
struct tegra_thermctl_zone *zone =
|
||||
devm_kzalloc(&pdev->dev, sizeof(*zone), GFP_KERNEL);
|
||||
if (!zone) {
|
||||
err = -ENOMEM;
|
||||
goto unregister_tzs;
|
||||
}
|
||||
|
||||
zone->reg = tegra->regs + t124_thermctl_temp_zones[i].offset;
|
||||
zone->shift = t124_thermctl_temp_zones[i].shift;
|
||||
|
||||
tz = thermal_zone_of_sensor_register(&pdev->dev, i, zone,
|
||||
&tegra_of_thermal_ops);
|
||||
if (IS_ERR(tz)) {
|
||||
err = PTR_ERR(tz);
|
||||
dev_err(&pdev->dev, "failed to register sensor: %d\n",
|
||||
err);
|
||||
goto unregister_tzs;
|
||||
}
|
||||
|
||||
tegra->thermctl_tzs[i] = tz;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
unregister_tzs:
|
||||
while (i--)
|
||||
thermal_zone_of_sensor_unregister(&pdev->dev,
|
||||
tegra->thermctl_tzs[i]);
|
||||
|
||||
disable_clocks:
|
||||
clk_disable_unprepare(tegra->clock_tsensor);
|
||||
clk_disable_unprepare(tegra->clock_soctherm);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static int tegra_soctherm_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct tegra_soctherm *tegra = platform_get_drvdata(pdev);
|
||||
unsigned int i;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(tegra->thermctl_tzs); ++i) {
|
||||
thermal_zone_of_sensor_unregister(&pdev->dev,
|
||||
tegra->thermctl_tzs[i]);
|
||||
}
|
||||
|
||||
clk_disable_unprepare(tegra->clock_tsensor);
|
||||
clk_disable_unprepare(tegra->clock_soctherm);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_driver tegra_soctherm_driver = {
|
||||
.probe = tegra_soctherm_probe,
|
||||
.remove = tegra_soctherm_remove,
|
||||
.driver = {
|
||||
.name = "tegra-soctherm",
|
||||
.of_match_table = tegra_soctherm_of_match,
|
||||
},
|
||||
};
|
||||
module_platform_driver(tegra_soctherm_driver);
|
||||
|
||||
MODULE_AUTHOR("Mikko Perttunen <mperttunen@nvidia.com>");
|
||||
MODULE_DESCRIPTION("NVIDIA Tegra SOCTHERM thermal management driver");
|
||||
MODULE_LICENSE("GPL v2");
|
@ -89,9 +89,27 @@ static inline void thermal_gov_user_space_unregister(void) {}
|
||||
#ifdef CONFIG_THERMAL_OF
|
||||
int of_parse_thermal_zones(void);
|
||||
void of_thermal_destroy_zones(void);
|
||||
int of_thermal_get_ntrips(struct thermal_zone_device *);
|
||||
bool of_thermal_is_trip_valid(struct thermal_zone_device *, int);
|
||||
const struct thermal_trip * const
|
||||
of_thermal_get_trip_points(struct thermal_zone_device *);
|
||||
#else
|
||||
static inline int of_parse_thermal_zones(void) { return 0; }
|
||||
static inline void of_thermal_destroy_zones(void) { }
|
||||
static inline int of_thermal_get_ntrips(struct thermal_zone_device *tz)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
static inline bool of_thermal_is_trip_valid(struct thermal_zone_device *tz,
|
||||
int trip)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
static inline const struct thermal_trip * const
|
||||
of_thermal_get_trip_points(struct thermal_zone_device *tz)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __THERMAL_CORE_H__ */
|
||||
|
@ -286,6 +286,11 @@ static int ti_thermal_get_crit_temp(struct thermal_zone_device *thermal,
|
||||
return ti_thermal_get_trip_temp(thermal, OMAP_TRIP_NUMBER - 1, temp);
|
||||
}
|
||||
|
||||
static const struct thermal_zone_of_device_ops ti_of_thermal_ops = {
|
||||
.get_temp = __ti_thermal_get_temp,
|
||||
.get_trend = __ti_thermal_get_trend,
|
||||
};
|
||||
|
||||
static struct thermal_zone_device_ops ti_thermal_ops = {
|
||||
.get_temp = ti_thermal_get_temp,
|
||||
.get_trend = ti_thermal_get_trend,
|
||||
@ -333,8 +338,7 @@ int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id,
|
||||
|
||||
/* in case this is specified by DT */
|
||||
data->ti_thermal = thermal_zone_of_sensor_register(bgp->dev, id,
|
||||
data, __ti_thermal_get_temp,
|
||||
__ti_thermal_get_trend);
|
||||
data, &ti_of_thermal_ops);
|
||||
if (IS_ERR(data->ti_thermal)) {
|
||||
/* Create thermal zone */
|
||||
data->ti_thermal = thermal_zone_device_register(domain,
|
||||
|
13
include/dt-bindings/thermal/tegra124-soctherm.h
Normal file
13
include/dt-bindings/thermal/tegra124-soctherm.h
Normal file
@ -0,0 +1,13 @@
|
||||
/*
|
||||
* This header provides constants for binding nvidia,tegra124-soctherm.
|
||||
*/
|
||||
|
||||
#ifndef _DT_BINDINGS_THERMAL_TEGRA124_SOCTHERM_H
|
||||
#define _DT_BINDINGS_THERMAL_TEGRA124_SOCTHERM_H
|
||||
|
||||
#define TEGRA124_SOCTHERM_SENSOR_CPU 0
|
||||
#define TEGRA124_SOCTHERM_SENSOR_MEM 1
|
||||
#define TEGRA124_SOCTHERM_SENSOR_GPU 2
|
||||
#define TEGRA124_SOCTHERM_SENSOR_PLLX 3
|
||||
|
||||
#endif
|
65
include/linux/clock_cooling.h
Normal file
65
include/linux/clock_cooling.h
Normal file
@ -0,0 +1,65 @@
|
||||
/*
|
||||
* linux/include/linux/clock_cooling.h
|
||||
*
|
||||
* Copyright (C) 2014 Eduardo Valentin <edubezval@gmail.com>
|
||||
*
|
||||
* Copyright (C) 2013 Texas Instruments Inc.
|
||||
* Contact: Eduardo Valentin <eduardo.valentin@ti.com>
|
||||
*
|
||||
* Highly based on cpu_cooling.c.
|
||||
* Copyright (C) 2012 Samsung Electronics Co., Ltd(http://www.samsung.com)
|
||||
* Copyright (C) 2012 Amit Daniel <amit.kachhap@linaro.org>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; version 2 of the License.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but
|
||||
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*/
|
||||
|
||||
#ifndef __CPU_COOLING_H__
|
||||
#define __CPU_COOLING_H__
|
||||
|
||||
#include <linux/of.h>
|
||||
#include <linux/thermal.h>
|
||||
#include <linux/cpumask.h>
|
||||
|
||||
#ifdef CONFIG_CLOCK_THERMAL
|
||||
/**
|
||||
* clock_cooling_register - function to create clock cooling device.
|
||||
* @dev: struct device pointer to the device used as clock cooling device.
|
||||
* @clock_name: string containing the clock used as cooling mechanism.
|
||||
*/
|
||||
struct thermal_cooling_device *
|
||||
clock_cooling_register(struct device *dev, const char *clock_name);
|
||||
|
||||
/**
|
||||
* clock_cooling_unregister - function to remove clock cooling device.
|
||||
* @cdev: thermal cooling device pointer.
|
||||
*/
|
||||
void clock_cooling_unregister(struct thermal_cooling_device *cdev);
|
||||
|
||||
unsigned long clock_cooling_get_level(struct thermal_cooling_device *cdev,
|
||||
unsigned long freq);
|
||||
#else /* !CONFIG_CLOCK_THERMAL */
|
||||
static inline struct thermal_cooling_device *
|
||||
clock_cooling_register(struct device *dev, const char *clock_name)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
static inline
|
||||
void clock_cooling_unregister(struct thermal_cooling_device *cdev)
|
||||
{
|
||||
}
|
||||
static inline
|
||||
unsigned long clock_cooling_get_level(struct thermal_cooling_device *cdev,
|
||||
unsigned long freq)
|
||||
{
|
||||
return THERMAL_CSTATE_INVALID;
|
||||
}
|
||||
#endif /* CONFIG_CLOCK_THERMAL */
|
||||
|
||||
#endif /* __CPU_COOLING_H__ */
|
@ -260,19 +260,49 @@ struct thermal_genl_event {
|
||||
enum events event;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct thermal_zone_of_device_ops - scallbacks for handling DT based zones
|
||||
*
|
||||
* Mandatory:
|
||||
* @get_temp: a pointer to a function that reads the sensor temperature.
|
||||
*
|
||||
* Optional:
|
||||
* @get_trend: a pointer to a function that reads the sensor temperature trend.
|
||||
* @set_emul_temp: a pointer to a function that sets sensor emulated
|
||||
* temperature.
|
||||
*/
|
||||
struct thermal_zone_of_device_ops {
|
||||
int (*get_temp)(void *, long *);
|
||||
int (*get_trend)(void *, long *);
|
||||
int (*set_emul_temp)(void *, unsigned long);
|
||||
};
|
||||
|
||||
/**
|
||||
* struct thermal_trip - representation of a point in temperature domain
|
||||
* @np: pointer to struct device_node that this trip point was created from
|
||||
* @temperature: temperature value in miliCelsius
|
||||
* @hysteresis: relative hysteresis in miliCelsius
|
||||
* @type: trip point type
|
||||
*/
|
||||
|
||||
struct thermal_trip {
|
||||
struct device_node *np;
|
||||
unsigned long int temperature;
|
||||
unsigned long int hysteresis;
|
||||
enum thermal_trip_type type;
|
||||
};
|
||||
|
||||
/* Function declarations */
|
||||
#ifdef CONFIG_THERMAL_OF
|
||||
struct thermal_zone_device *
|
||||
thermal_zone_of_sensor_register(struct device *dev, int id,
|
||||
void *data, int (*get_temp)(void *, long *),
|
||||
int (*get_trend)(void *, long *));
|
||||
thermal_zone_of_sensor_register(struct device *dev, int id, void *data,
|
||||
const struct thermal_zone_of_device_ops *ops);
|
||||
void thermal_zone_of_sensor_unregister(struct device *dev,
|
||||
struct thermal_zone_device *tz);
|
||||
#else
|
||||
static inline struct thermal_zone_device *
|
||||
thermal_zone_of_sensor_register(struct device *dev, int id,
|
||||
void *data, int (*get_temp)(void *, long *),
|
||||
int (*get_trend)(void *, long *))
|
||||
thermal_zone_of_sensor_register(struct device *dev, int id, void *data,
|
||||
const struct thermal_zone_of_device_ops *ops)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user