mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-11 20:48:49 +08:00
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management updates from Zhang Rui: - fix a race condition issue in power allocator governor (Yi Zeng). - add support for AP806 and CP110 in armada thermal driver, together with several improvements (Baruch Siach, Miquel Raynal) - add support for r8z7743 in rcar thermal driver (Biju Das) - convert thermal core to use new hwmon API to avoid warning (Fabio Estevam) - small fixes and cleanups in thermal core and x86_pkg_thermal, int3400_thermal, hisi_thermal, mtk_thermal and imx_thermal drivers (Pravin Shedge, Geert Uytterhoeven, Alexey Khoroshilov, Brian Bian, Matthias Brugger, Nicolin Chen, Uwe Kleine-König) * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (25 commits) thermal: thermal_hwmon: Convert to hwmon_device_register_with_info() thermal/x86 pkg temp: Remove debugfs_create_u32() casts thermal: int3400_thermal: fix error handling in int3400_thermal_probe() thermal/drivers/hisi: Remove bogus const from function return type thermal: armada: Give meaningful names to the thermal zones thermal: armada: Wait sensors validity before exiting the init callback thermal: armada: Change sensors trim default value thermal: armada: Update Kconfig and module description thermal: armada: Add support for Armada CP110 thermal: armada: Add support for Armada AP806 thermal: armada: Use real status register name thermal: armada: Clarify control registers accesses thermal: armada: Simplify the check of the validity bit thermal: armada: Use msleep for long delays dt-bindings: thermal: Describe Armada AP806 and CP110 dt-bindings: thermal: rcar: Add device tree support for r8a7743 thermal: mtk: Cleanup unused defines thermal: imx: update to new formula according to NXP AN5215 thermal: imx: use consistent style to write temperatures thermal: imx: improve comments describing algorithm for temp calculation ...
This commit is contained in:
Linus Torvalds
commit
3f551e3cef
@ -2,22 +2,35 @@
|
||||
|
||||
Required properties:
|
||||
|
||||
- compatible: Should be set to one of the following:
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marvell,armada370-thermal
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marvell,armada375-thermal
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marvell,armada380-thermal
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marvell,armadaxp-thermal
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- compatible: Should be set to one of the following:
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* marvell,armada370-thermal
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* marvell,armada375-thermal
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* marvell,armada380-thermal
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* marvell,armadaxp-thermal
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* marvell,armada-ap806-thermal
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* marvell,armada-cp110-thermal
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- reg: Device's register space.
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Two entries are expected, see the examples below.
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The first one is required for the sensor register;
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the second one is required for the control register
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to be used for sensor initialization (a.k.a. calibration).
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- reg: Device's register space.
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Two entries are expected, see the examples below. The first one points
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to the status register (4B). The second one points to the control
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registers (8B).
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Note: The compatibles marvell,armada370-thermal,
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marvell,armada380-thermal, and marvell,armadaxp-thermal must point to
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"control MSB/control 1", with size of 4 (deprecated binding), or point
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to "control LSB/control 0" with size of 8 (current binding). All other
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compatibles must point to "control LSB/control 0" with size of 8.
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Example:
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Examples:
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/* Legacy bindings */
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thermal@d0018300 {
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compatible = "marvell,armada370-thermal";
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reg = <0xd0018300 0x4
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reg = <0xd0018300 0x4
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0xd0018304 0x4>;
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};
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ap_thermal: thermal@6f8084 {
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compatible = "marvell,armada-ap806-thermal";
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reg = <0x6f808C 0x4>,
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<0x6f8084 0x8>;
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};
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@ -6,6 +6,7 @@ Required properties:
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"renesas,rcar-thermal" (without thermal-zone) as fallback.
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Examples with soctypes are:
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- "renesas,thermal-r8a73a4" (R-Mobile APE6)
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- "renesas,thermal-r8a7743" (RZ/G1M)
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- "renesas,thermal-r8a7779" (R-Car H1)
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- "renesas,thermal-r8a7790" (R-Car H2)
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- "renesas,thermal-r8a7791" (R-Car M2-W)
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@ -301,13 +301,13 @@ config DB8500_THERMAL
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thermal zone if trip points reached.
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config ARMADA_THERMAL
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tristate "Armada 370/XP thermal management"
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tristate "Marvell EBU Armada SoCs thermal management"
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depends on ARCH_MVEBU || COMPILE_TEST
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depends on HAS_IOMEM
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depends on OF
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help
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Enable this option if you want to have support for thermal management
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controller present in Armada 370 and Armada XP SoC.
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controller present in Marvell EBU Armada SoCs (370,375,XP,38x,7K,8K).
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config DA9062_THERMAL
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tristate "DA9062/DA9061 Dialog Semiconductor thermal driver"
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@ -1,5 +1,5 @@
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/*
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* Marvell Armada 370/XP thermal sensor driver
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* Marvell EBU Armada SoCs thermal sensor driver
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*
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* Copyright (C) 2013 Marvell
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*
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@ -23,8 +23,7 @@
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#include <linux/platform_device.h>
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#include <linux/of_device.h>
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#include <linux/thermal.h>
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#define THERMAL_VALID_MASK 0x1
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#include <linux/iopoll.h>
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/* Thermal Manager Control and Status Register */
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#define PMU_TDC0_SW_RST_MASK (0x1 << 1)
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@ -39,14 +38,38 @@
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#define A375_UNIT_CONTROL_MASK 0x7
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#define A375_READOUT_INVERT BIT(15)
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#define A375_HW_RESETn BIT(8)
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#define A380_HW_RESET BIT(8)
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/* Legacy bindings */
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#define LEGACY_CONTROL_MEM_LEN 0x4
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/* Current bindings with the 2 control registers under the same memory area */
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#define LEGACY_CONTROL1_OFFSET 0x0
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#define CONTROL0_OFFSET 0x0
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#define CONTROL1_OFFSET 0x4
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/* Errata fields */
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#define CONTROL0_TSEN_TC_TRIM_MASK 0x7
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#define CONTROL0_TSEN_TC_TRIM_VAL 0x3
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/* TSEN refers to the temperature sensors within the AP */
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#define CONTROL0_TSEN_START BIT(0)
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#define CONTROL0_TSEN_RESET BIT(1)
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#define CONTROL0_TSEN_ENABLE BIT(2)
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/* EXT_TSEN refers to the external temperature sensors, out of the AP */
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#define CONTROL1_EXT_TSEN_SW_RESET BIT(7)
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#define CONTROL1_EXT_TSEN_HW_RESETn BIT(8)
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#define STATUS_POLL_PERIOD_US 1000
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#define STATUS_POLL_TIMEOUT_US 100000
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struct armada_thermal_data;
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/* Marvell EBU Thermal Sensor Dev Structure */
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struct armada_thermal_priv {
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void __iomem *sensor;
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void __iomem *control;
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void __iomem *status;
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void __iomem *control0;
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void __iomem *control1;
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struct armada_thermal_data *data;
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};
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@ -59,107 +82,142 @@ struct armada_thermal_data {
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bool (*is_valid)(struct armada_thermal_priv *);
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/* Formula coeficients: temp = (b - m * reg) / div */
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unsigned long coef_b;
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unsigned long coef_m;
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unsigned long coef_div;
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s64 coef_b;
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s64 coef_m;
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u32 coef_div;
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bool inverted;
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bool signed_sample;
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/* Register shift and mask to access the sensor temperature */
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unsigned int temp_shift;
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unsigned int temp_mask;
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unsigned int is_valid_shift;
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u32 is_valid_bit;
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bool needs_control0;
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};
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static void armadaxp_init_sensor(struct platform_device *pdev,
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struct armada_thermal_priv *priv)
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{
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unsigned long reg;
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u32 reg;
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reg = readl_relaxed(priv->control);
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reg = readl_relaxed(priv->control1);
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reg |= PMU_TDC0_OTF_CAL_MASK;
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writel(reg, priv->control);
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writel(reg, priv->control1);
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/* Reference calibration value */
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reg &= ~PMU_TDC0_REF_CAL_CNT_MASK;
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reg |= (0xf1 << PMU_TDC0_REF_CAL_CNT_OFFS);
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writel(reg, priv->control);
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writel(reg, priv->control1);
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/* Reset the sensor */
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reg = readl_relaxed(priv->control);
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writel((reg | PMU_TDC0_SW_RST_MASK), priv->control);
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reg = readl_relaxed(priv->control1);
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writel((reg | PMU_TDC0_SW_RST_MASK), priv->control1);
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writel(reg, priv->control);
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writel(reg, priv->control1);
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/* Enable the sensor */
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reg = readl_relaxed(priv->sensor);
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reg = readl_relaxed(priv->status);
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reg &= ~PMU_TM_DISABLE_MASK;
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writel(reg, priv->sensor);
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writel(reg, priv->status);
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}
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static void armada370_init_sensor(struct platform_device *pdev,
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struct armada_thermal_priv *priv)
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{
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unsigned long reg;
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u32 reg;
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reg = readl_relaxed(priv->control);
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reg = readl_relaxed(priv->control1);
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reg |= PMU_TDC0_OTF_CAL_MASK;
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writel(reg, priv->control);
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writel(reg, priv->control1);
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|
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/* Reference calibration value */
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reg &= ~PMU_TDC0_REF_CAL_CNT_MASK;
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reg |= (0xf1 << PMU_TDC0_REF_CAL_CNT_OFFS);
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writel(reg, priv->control);
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writel(reg, priv->control1);
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reg &= ~PMU_TDC0_START_CAL_MASK;
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writel(reg, priv->control);
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writel(reg, priv->control1);
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mdelay(10);
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msleep(10);
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}
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static void armada375_init_sensor(struct platform_device *pdev,
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struct armada_thermal_priv *priv)
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{
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unsigned long reg;
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u32 reg;
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reg = readl(priv->control + 4);
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reg = readl(priv->control1);
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reg &= ~(A375_UNIT_CONTROL_MASK << A375_UNIT_CONTROL_SHIFT);
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reg &= ~A375_READOUT_INVERT;
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reg &= ~A375_HW_RESETn;
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writel(reg, priv->control + 4);
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mdelay(20);
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writel(reg, priv->control1);
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msleep(20);
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reg |= A375_HW_RESETn;
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writel(reg, priv->control + 4);
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mdelay(50);
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writel(reg, priv->control1);
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msleep(50);
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}
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static void armada_wait_sensor_validity(struct armada_thermal_priv *priv)
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{
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u32 reg;
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readl_relaxed_poll_timeout(priv->status, reg,
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reg & priv->data->is_valid_bit,
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STATUS_POLL_PERIOD_US,
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STATUS_POLL_TIMEOUT_US);
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}
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static void armada380_init_sensor(struct platform_device *pdev,
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struct armada_thermal_priv *priv)
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{
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unsigned long reg = readl_relaxed(priv->control);
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u32 reg = readl_relaxed(priv->control1);
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/* Reset hardware once */
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if (!(reg & A380_HW_RESET)) {
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reg |= A380_HW_RESET;
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writel(reg, priv->control);
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mdelay(10);
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/* Disable the HW/SW reset */
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reg |= CONTROL1_EXT_TSEN_HW_RESETn;
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reg &= ~CONTROL1_EXT_TSEN_SW_RESET;
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writel(reg, priv->control1);
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/* Set Tsen Tc Trim to correct default value (errata #132698) */
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if (priv->control0) {
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reg = readl_relaxed(priv->control0);
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reg &= ~CONTROL0_TSEN_TC_TRIM_MASK;
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reg |= CONTROL0_TSEN_TC_TRIM_VAL;
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writel(reg, priv->control0);
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}
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/* Wait the sensors to be valid or the core will warn the user */
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armada_wait_sensor_validity(priv);
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}
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static void armada_ap806_init_sensor(struct platform_device *pdev,
|
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struct armada_thermal_priv *priv)
|
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{
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u32 reg;
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|
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reg = readl_relaxed(priv->control0);
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reg &= ~CONTROL0_TSEN_RESET;
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reg |= CONTROL0_TSEN_START | CONTROL0_TSEN_ENABLE;
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writel(reg, priv->control0);
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|
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/* Wait the sensors to be valid or the core will warn the user */
|
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armada_wait_sensor_validity(priv);
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}
|
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|
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static bool armada_is_valid(struct armada_thermal_priv *priv)
|
||||
{
|
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unsigned long reg = readl_relaxed(priv->sensor);
|
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u32 reg = readl_relaxed(priv->status);
|
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|
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return (reg >> priv->data->is_valid_shift) & THERMAL_VALID_MASK;
|
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return reg & priv->data->is_valid_bit;
|
||||
}
|
||||
|
||||
static int armada_get_temp(struct thermal_zone_device *thermal,
|
||||
int *temp)
|
||||
int *temp)
|
||||
{
|
||||
struct armada_thermal_priv *priv = thermal->devdata;
|
||||
unsigned long reg;
|
||||
unsigned long m, b, div;
|
||||
u32 reg, div;
|
||||
s64 sample, b, m;
|
||||
|
||||
/* Valid check */
|
||||
if (priv->data->is_valid && !priv->data->is_valid(priv)) {
|
||||
@ -168,8 +226,13 @@ static int armada_get_temp(struct thermal_zone_device *thermal,
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
reg = readl_relaxed(priv->sensor);
|
||||
reg = readl_relaxed(priv->status);
|
||||
reg = (reg >> priv->data->temp_shift) & priv->data->temp_mask;
|
||||
if (priv->data->signed_sample)
|
||||
/* The most significant bit is the sign bit */
|
||||
sample = sign_extend32(reg, fls(priv->data->temp_mask) - 1);
|
||||
else
|
||||
sample = reg;
|
||||
|
||||
/* Get formula coeficients */
|
||||
b = priv->data->coef_b;
|
||||
@ -177,9 +240,10 @@ static int armada_get_temp(struct thermal_zone_device *thermal,
|
||||
div = priv->data->coef_div;
|
||||
|
||||
if (priv->data->inverted)
|
||||
*temp = ((m * reg) - b) / div;
|
||||
*temp = div_s64((m * sample) - b, div);
|
||||
else
|
||||
*temp = (b - (m * reg)) / div;
|
||||
*temp = div_s64(b - (m * sample), div);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -191,45 +255,73 @@ static const struct armada_thermal_data armadaxp_data = {
|
||||
.init_sensor = armadaxp_init_sensor,
|
||||
.temp_shift = 10,
|
||||
.temp_mask = 0x1ff,
|
||||
.coef_b = 3153000000UL,
|
||||
.coef_m = 10000000UL,
|
||||
.coef_b = 3153000000ULL,
|
||||
.coef_m = 10000000ULL,
|
||||
.coef_div = 13825,
|
||||
};
|
||||
|
||||
static const struct armada_thermal_data armada370_data = {
|
||||
.is_valid = armada_is_valid,
|
||||
.init_sensor = armada370_init_sensor,
|
||||
.is_valid_shift = 9,
|
||||
.is_valid_bit = BIT(9),
|
||||
.temp_shift = 10,
|
||||
.temp_mask = 0x1ff,
|
||||
.coef_b = 3153000000UL,
|
||||
.coef_m = 10000000UL,
|
||||
.coef_b = 3153000000ULL,
|
||||
.coef_m = 10000000ULL,
|
||||
.coef_div = 13825,
|
||||
};
|
||||
|
||||
static const struct armada_thermal_data armada375_data = {
|
||||
.is_valid = armada_is_valid,
|
||||
.init_sensor = armada375_init_sensor,
|
||||
.is_valid_shift = 10,
|
||||
.is_valid_bit = BIT(10),
|
||||
.temp_shift = 0,
|
||||
.temp_mask = 0x1ff,
|
||||
.coef_b = 3171900000UL,
|
||||
.coef_m = 10000000UL,
|
||||
.coef_b = 3171900000ULL,
|
||||
.coef_m = 10000000ULL,
|
||||
.coef_div = 13616,
|
||||
.needs_control0 = true,
|
||||
};
|
||||
|
||||
static const struct armada_thermal_data armada380_data = {
|
||||
.is_valid = armada_is_valid,
|
||||
.init_sensor = armada380_init_sensor,
|
||||
.is_valid_shift = 10,
|
||||
.is_valid_bit = BIT(10),
|
||||
.temp_shift = 0,
|
||||
.temp_mask = 0x3ff,
|
||||
.coef_b = 1172499100UL,
|
||||
.coef_m = 2000096UL,
|
||||
.coef_b = 1172499100ULL,
|
||||
.coef_m = 2000096ULL,
|
||||
.coef_div = 4201,
|
||||
.inverted = true,
|
||||
};
|
||||
|
||||
static const struct armada_thermal_data armada_ap806_data = {
|
||||
.is_valid = armada_is_valid,
|
||||
.init_sensor = armada_ap806_init_sensor,
|
||||
.is_valid_bit = BIT(16),
|
||||
.temp_shift = 0,
|
||||
.temp_mask = 0x3ff,
|
||||
.coef_b = -150000LL,
|
||||
.coef_m = 423ULL,
|
||||
.coef_div = 1,
|
||||
.inverted = true,
|
||||
.signed_sample = true,
|
||||
.needs_control0 = true,
|
||||
};
|
||||
|
||||
static const struct armada_thermal_data armada_cp110_data = {
|
||||
.is_valid = armada_is_valid,
|
||||
.init_sensor = armada380_init_sensor,
|
||||
.is_valid_bit = BIT(10),
|
||||
.temp_shift = 0,
|
||||
.temp_mask = 0x3ff,
|
||||
.coef_b = 1172499100ULL,
|
||||
.coef_m = 2000096ULL,
|
||||
.coef_div = 4201,
|
||||
.inverted = true,
|
||||
.needs_control0 = true,
|
||||
};
|
||||
|
||||
static const struct of_device_id armada_thermal_id_table[] = {
|
||||
{
|
||||
.compatible = "marvell,armadaxp-thermal",
|
||||
@ -247,6 +339,14 @@ static const struct of_device_id armada_thermal_id_table[] = {
|
||||
.compatible = "marvell,armada380-thermal",
|
||||
.data = &armada380_data,
|
||||
},
|
||||
{
|
||||
.compatible = "marvell,armada-ap806-thermal",
|
||||
.data = &armada_ap806_data,
|
||||
},
|
||||
{
|
||||
.compatible = "marvell,armada-cp110-thermal",
|
||||
.data = &armada_cp110_data,
|
||||
},
|
||||
{
|
||||
/* sentinel */
|
||||
},
|
||||
@ -255,6 +355,7 @@ MODULE_DEVICE_TABLE(of, armada_thermal_id_table);
|
||||
|
||||
static int armada_thermal_probe(struct platform_device *pdev)
|
||||
{
|
||||
void __iomem *control = NULL;
|
||||
struct thermal_zone_device *thermal;
|
||||
const struct of_device_id *match;
|
||||
struct armada_thermal_priv *priv;
|
||||
@ -269,20 +370,40 @@ static int armada_thermal_probe(struct platform_device *pdev)
|
||||
return -ENOMEM;
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
priv->sensor = devm_ioremap_resource(&pdev->dev, res);
|
||||
if (IS_ERR(priv->sensor))
|
||||
return PTR_ERR(priv->sensor);
|
||||
priv->status = devm_ioremap_resource(&pdev->dev, res);
|
||||
if (IS_ERR(priv->status))
|
||||
return PTR_ERR(priv->status);
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
|
||||
priv->control = devm_ioremap_resource(&pdev->dev, res);
|
||||
if (IS_ERR(priv->control))
|
||||
return PTR_ERR(priv->control);
|
||||
control = devm_ioremap_resource(&pdev->dev, res);
|
||||
if (IS_ERR(control))
|
||||
return PTR_ERR(control);
|
||||
|
||||
priv->data = (struct armada_thermal_data *)match->data;
|
||||
|
||||
/*
|
||||
* Legacy DT bindings only described "control1" register (also referred
|
||||
* as "control MSB" on old documentation). New bindings cover
|
||||
* "control0/control LSB" and "control1/control MSB" registers within
|
||||
* the same resource, which is then of size 8 instead of 4.
|
||||
*/
|
||||
if (resource_size(res) == LEGACY_CONTROL_MEM_LEN) {
|
||||
/* ->control0 unavailable in this configuration */
|
||||
if (priv->data->needs_control0) {
|
||||
dev_err(&pdev->dev, "No access to control0 register\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
priv->control1 = control + LEGACY_CONTROL1_OFFSET;
|
||||
} else {
|
||||
priv->control0 = control + CONTROL0_OFFSET;
|
||||
priv->control1 = control + CONTROL1_OFFSET;
|
||||
}
|
||||
|
||||
priv->data->init_sensor(pdev, priv);
|
||||
|
||||
thermal = thermal_zone_device_register("armada_thermal", 0, 0,
|
||||
priv, &ops, NULL, 0, 0);
|
||||
thermal = thermal_zone_device_register(dev_name(&pdev->dev), 0, 0, priv,
|
||||
&ops, NULL, 0, 0);
|
||||
if (IS_ERR(thermal)) {
|
||||
dev_err(&pdev->dev,
|
||||
"Failed to register thermal zone device\n");
|
||||
@ -316,5 +437,5 @@ static struct platform_driver armada_thermal_driver = {
|
||||
module_platform_driver(armada_thermal_driver);
|
||||
|
||||
MODULE_AUTHOR("Ezequiel Garcia <ezequiel.garcia@free-electrons.com>");
|
||||
MODULE_DESCRIPTION("Armada 370/XP thermal driver");
|
||||
MODULE_DESCRIPTION("Marvell EBU Armada SoCs thermal driver");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
|
||||
@ -527,7 +527,7 @@ static void hisi_thermal_toggle_sensor(struct hisi_thermal_sensor *sensor,
|
||||
static int hisi_thermal_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct hisi_thermal_data *data;
|
||||
int const (*platform_probe)(struct hisi_thermal_data *);
|
||||
int (*platform_probe)(struct hisi_thermal_data *);
|
||||
struct device *dev = &pdev->dev;
|
||||
int ret;
|
||||
|
||||
|
||||
@ -70,10 +70,6 @@ enum imx_thermal_trip {
|
||||
#define IMX_POLLING_DELAY 2000 /* millisecond */
|
||||
#define IMX_PASSIVE_DELAY 1000
|
||||
|
||||
#define FACTOR0 10000000
|
||||
#define FACTOR1 15976
|
||||
#define FACTOR2 4297157
|
||||
|
||||
#define TEMPMON_IMX6Q 1
|
||||
#define TEMPMON_IMX6SX 2
|
||||
|
||||
@ -347,78 +343,74 @@ static struct thermal_zone_device_ops imx_tz_ops = {
|
||||
.set_trip_temp = imx_set_trip_temp,
|
||||
};
|
||||
|
||||
static int imx_init_calib(struct platform_device *pdev, u32 val)
|
||||
static int imx_init_calib(struct platform_device *pdev, u32 ocotp_ana1)
|
||||
{
|
||||
struct imx_thermal_data *data = platform_get_drvdata(pdev);
|
||||
int t1, n1;
|
||||
int n1;
|
||||
u64 temp64;
|
||||
|
||||
if (val == 0 || val == ~0) {
|
||||
if (ocotp_ana1 == 0 || ocotp_ana1 == ~0) {
|
||||
dev_err(&pdev->dev, "invalid sensor calibration data\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/*
|
||||
* Sensor data layout:
|
||||
* [31:20] - sensor value @ 25C
|
||||
* Use universal formula now and only need sensor value @ 25C
|
||||
* slope = 0.4297157 - (0.0015976 * 25C fuse)
|
||||
* The sensor is calibrated at 25 °C (aka T1) and the value measured
|
||||
* (aka N1) at this temperature is provided in bits [31:20] in the
|
||||
* i.MX's OCOTP value ANA1.
|
||||
* To find the actual temperature T, the following formula has to be used
|
||||
* when reading value n from the sensor:
|
||||
*
|
||||
* T = T1 + (N - N1) / (0.4148468 - 0.0015423 * N1) °C + 3.580661 °C
|
||||
* = [T1' - N1 / (0.4148468 - 0.0015423 * N1) °C] + N / (0.4148468 - 0.0015423 * N1) °C
|
||||
* = [T1' + N1 / (0.0015423 * N1 - 0.4148468) °C] - N / (0.0015423 * N1 - 0.4148468) °C
|
||||
* = c2 - c1 * N
|
||||
*
|
||||
* with
|
||||
*
|
||||
* T1' = 28.580661 °C
|
||||
* c1 = 1 / (0.0015423 * N1 - 0.4297157) °C
|
||||
* c2 = T1' + N1 / (0.0015423 * N1 - 0.4148468) °C
|
||||
* = T1' + N1 * c1
|
||||
*/
|
||||
n1 = val >> 20;
|
||||
t1 = 25; /* t1 always 25C */
|
||||
n1 = ocotp_ana1 >> 20;
|
||||
|
||||
/*
|
||||
* Derived from linear interpolation:
|
||||
* slope = 0.4297157 - (0.0015976 * 25C fuse)
|
||||
* slope = (FACTOR2 - FACTOR1 * n1) / FACTOR0
|
||||
* (Nmeas - n1) / (Tmeas - t1) = slope
|
||||
* We want to reduce this down to the minimum computation necessary
|
||||
* for each temperature read. Also, we want Tmeas in millicelsius
|
||||
* and we don't want to lose precision from integer division. So...
|
||||
* Tmeas = (Nmeas - n1) / slope + t1
|
||||
* milli_Tmeas = 1000 * (Nmeas - n1) / slope + 1000 * t1
|
||||
* milli_Tmeas = -1000 * (n1 - Nmeas) / slope + 1000 * t1
|
||||
* Let constant c1 = (-1000 / slope)
|
||||
* milli_Tmeas = (n1 - Nmeas) * c1 + 1000 * t1
|
||||
* Let constant c2 = n1 *c1 + 1000 * t1
|
||||
* milli_Tmeas = c2 - Nmeas * c1
|
||||
*/
|
||||
temp64 = FACTOR0;
|
||||
temp64 *= 1000;
|
||||
do_div(temp64, FACTOR1 * n1 - FACTOR2);
|
||||
temp64 = 10000000; /* use 10^7 as fixed point constant for values in formula */
|
||||
temp64 *= 1000; /* to get result in °mC */
|
||||
do_div(temp64, 15423 * n1 - 4148468);
|
||||
data->c1 = temp64;
|
||||
data->c2 = n1 * data->c1 + 1000 * t1;
|
||||
data->c2 = n1 * data->c1 + 28581;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void imx_init_temp_grade(struct platform_device *pdev, u32 val)
|
||||
static void imx_init_temp_grade(struct platform_device *pdev, u32 ocotp_mem0)
|
||||
{
|
||||
struct imx_thermal_data *data = platform_get_drvdata(pdev);
|
||||
|
||||
/* The maximum die temp is specified by the Temperature Grade */
|
||||
switch ((val >> 6) & 0x3) {
|
||||
case 0: /* Commercial (0 to 95C) */
|
||||
switch ((ocotp_mem0 >> 6) & 0x3) {
|
||||
case 0: /* Commercial (0 to 95 °C) */
|
||||
data->temp_grade = "Commercial";
|
||||
data->temp_max = 95000;
|
||||
break;
|
||||
case 1: /* Extended Commercial (-20 to 105C) */
|
||||
case 1: /* Extended Commercial (-20 °C to 105 °C) */
|
||||
data->temp_grade = "Extended Commercial";
|
||||
data->temp_max = 105000;
|
||||
break;
|
||||
case 2: /* Industrial (-40 to 105C) */
|
||||
case 2: /* Industrial (-40 °C to 105 °C) */
|
||||
data->temp_grade = "Industrial";
|
||||
data->temp_max = 105000;
|
||||
break;
|
||||
case 3: /* Automotive (-40 to 125C) */
|
||||
case 3: /* Automotive (-40 °C to 125 °C) */
|
||||
data->temp_grade = "Automotive";
|
||||
data->temp_max = 125000;
|
||||
break;
|
||||
}
|
||||
|
||||
/*
|
||||
* Set the critical trip point at 5C under max
|
||||
* Set the passive trip point at 10C under max (can change via sysfs)
|
||||
* Set the critical trip point at 5 °C under max
|
||||
* Set the passive trip point at 10 °C under max (changeable via sysfs)
|
||||
*/
|
||||
data->temp_critical = data->temp_max - (1000 * 5);
|
||||
data->temp_passive = data->temp_max - (1000 * 10);
|
||||
|
||||
@ -211,7 +211,7 @@ static void int3400_notify(acpi_handle handle,
|
||||
thermal_prop);
|
||||
break;
|
||||
default:
|
||||
dev_err(&priv->adev->dev, "Unsupported event [0x%x]\n", event);
|
||||
/* Ignore unknown notification codes sent to INT3400 device */
|
||||
break;
|
||||
}
|
||||
}
|
||||
@ -319,17 +319,21 @@ static int int3400_thermal_probe(struct platform_device *pdev)
|
||||
|
||||
result = sysfs_create_group(&pdev->dev.kobj, &uuid_attribute_group);
|
||||
if (result)
|
||||
goto free_zone;
|
||||
goto free_rel_misc;
|
||||
|
||||
result = acpi_install_notify_handler(
|
||||
priv->adev->handle, ACPI_DEVICE_NOTIFY, int3400_notify,
|
||||
(void *)priv);
|
||||
if (result)
|
||||
goto free_zone;
|
||||
goto free_sysfs;
|
||||
|
||||
return 0;
|
||||
|
||||
free_zone:
|
||||
free_sysfs:
|
||||
sysfs_remove_group(&pdev->dev.kobj, &uuid_attribute_group);
|
||||
free_rel_misc:
|
||||
if (!priv->rel_misc_dev_res)
|
||||
acpi_thermal_rel_misc_device_remove(priv->adev->handle);
|
||||
thermal_zone_device_unregister(priv->thermal);
|
||||
free_art_trt:
|
||||
kfree(priv->trts);
|
||||
|
||||
@ -32,15 +32,10 @@
|
||||
#include <linux/types.h>
|
||||
|
||||
/* AUXADC Registers */
|
||||
#define AUXADC_CON0_V 0x000
|
||||
#define AUXADC_CON1_V 0x004
|
||||
#define AUXADC_CON1_SET_V 0x008
|
||||
#define AUXADC_CON1_CLR_V 0x00c
|
||||
#define AUXADC_CON2_V 0x010
|
||||
#define AUXADC_DATA(channel) (0x14 + (channel) * 4)
|
||||
#define AUXADC_MISC_V 0x094
|
||||
|
||||
#define AUXADC_CON1_CHANNEL(x) BIT(x)
|
||||
|
||||
#define APMIXED_SYS_TS_CON1 0x604
|
||||
|
||||
@ -158,8 +153,6 @@
|
||||
/* The number of sensing points per bank */
|
||||
#define MT2712_NUM_SENSORS_PER_ZONE 4
|
||||
|
||||
#define THERMAL_NAME "mtk-thermal"
|
||||
|
||||
struct mtk_thermal;
|
||||
|
||||
struct thermal_bank_cfg {
|
||||
@ -765,7 +758,7 @@ static struct platform_driver mtk_thermal_driver = {
|
||||
.probe = mtk_thermal_probe,
|
||||
.remove = mtk_thermal_remove,
|
||||
.driver = {
|
||||
.name = THERMAL_NAME,
|
||||
.name = "mtk-thermal",
|
||||
.of_match_table = mtk_thermal_of_match,
|
||||
},
|
||||
};
|
||||
|
||||
@ -30,7 +30,6 @@
|
||||
#include <linux/err.h>
|
||||
#include <linux/export.h>
|
||||
#include <linux/string.h>
|
||||
#include <linux/thermal.h>
|
||||
|
||||
#include "thermal_core.h"
|
||||
|
||||
|
||||
@ -523,6 +523,7 @@ static void allow_maximum_power(struct thermal_zone_device *tz)
|
||||
struct thermal_instance *instance;
|
||||
struct power_allocator_params *params = tz->governor_data;
|
||||
|
||||
mutex_lock(&tz->lock);
|
||||
list_for_each_entry(instance, &tz->thermal_instances, tz_node) {
|
||||
if ((instance->trip != params->trip_max_desired_temperature) ||
|
||||
(!cdev_is_power_actor(instance->cdev)))
|
||||
@ -534,6 +535,7 @@ static void allow_maximum_power(struct thermal_zone_device *tz)
|
||||
mutex_unlock(&instance->cdev->lock);
|
||||
thermal_cdev_update(instance->cdev);
|
||||
}
|
||||
mutex_unlock(&tz->lock);
|
||||
}
|
||||
|
||||
/**
|
||||
|
||||
@ -341,62 +341,6 @@ static int tegra_thermctl_get_temp(void *data, int *out_temp)
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
thermtrip_program(struct device *dev, const struct tegra_tsensor_group *sg,
|
||||
int trip_temp);
|
||||
static int
|
||||
throttrip_program(struct device *dev, const struct tegra_tsensor_group *sg,
|
||||
struct soctherm_throt_cfg *stc, int trip_temp);
|
||||
static struct soctherm_throt_cfg *
|
||||
find_throttle_cfg_by_name(struct tegra_soctherm *ts, const char *name);
|
||||
|
||||
static int tegra_thermctl_set_trip_temp(void *data, int trip, int temp)
|
||||
{
|
||||
struct tegra_thermctl_zone *zone = data;
|
||||
struct thermal_zone_device *tz = zone->tz;
|
||||
struct tegra_soctherm *ts = zone->ts;
|
||||
const struct tegra_tsensor_group *sg = zone->sg;
|
||||
struct device *dev = zone->dev;
|
||||
enum thermal_trip_type type;
|
||||
int ret;
|
||||
|
||||
if (!tz)
|
||||
return -EINVAL;
|
||||
|
||||
ret = tz->ops->get_trip_type(tz, trip, &type);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
if (type == THERMAL_TRIP_CRITICAL) {
|
||||
return thermtrip_program(dev, sg, temp);
|
||||
} else if (type == THERMAL_TRIP_HOT) {
|
||||
int i;
|
||||
|
||||
for (i = 0; i < THROTTLE_SIZE; i++) {
|
||||
struct thermal_cooling_device *cdev;
|
||||
struct soctherm_throt_cfg *stc;
|
||||
|
||||
if (!ts->throt_cfgs[i].init)
|
||||
continue;
|
||||
|
||||
cdev = ts->throt_cfgs[i].cdev;
|
||||
if (get_thermal_instance(tz, cdev, trip))
|
||||
stc = find_throttle_cfg_by_name(ts, cdev->type);
|
||||
else
|
||||
continue;
|
||||
|
||||
return throttrip_program(dev, sg, stc, temp);
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct thermal_zone_of_device_ops tegra_of_thermal_ops = {
|
||||
.get_temp = tegra_thermctl_get_temp,
|
||||
.set_trip_temp = tegra_thermctl_set_trip_temp,
|
||||
};
|
||||
|
||||
/**
|
||||
* enforce_temp_range() - check and enforce temperature range [min, max]
|
||||
* @trip_temp: the trip temperature to check
|
||||
@ -527,6 +471,53 @@ find_throttle_cfg_by_name(struct tegra_soctherm *ts, const char *name)
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static int tegra_thermctl_set_trip_temp(void *data, int trip, int temp)
|
||||
{
|
||||
struct tegra_thermctl_zone *zone = data;
|
||||
struct thermal_zone_device *tz = zone->tz;
|
||||
struct tegra_soctherm *ts = zone->ts;
|
||||
const struct tegra_tsensor_group *sg = zone->sg;
|
||||
struct device *dev = zone->dev;
|
||||
enum thermal_trip_type type;
|
||||
int ret;
|
||||
|
||||
if (!tz)
|
||||
return -EINVAL;
|
||||
|
||||
ret = tz->ops->get_trip_type(tz, trip, &type);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
if (type == THERMAL_TRIP_CRITICAL) {
|
||||
return thermtrip_program(dev, sg, temp);
|
||||
} else if (type == THERMAL_TRIP_HOT) {
|
||||
int i;
|
||||
|
||||
for (i = 0; i < THROTTLE_SIZE; i++) {
|
||||
struct thermal_cooling_device *cdev;
|
||||
struct soctherm_throt_cfg *stc;
|
||||
|
||||
if (!ts->throt_cfgs[i].init)
|
||||
continue;
|
||||
|
||||
cdev = ts->throt_cfgs[i].cdev;
|
||||
if (get_thermal_instance(tz, cdev, trip))
|
||||
stc = find_throttle_cfg_by_name(ts, cdev->type);
|
||||
else
|
||||
continue;
|
||||
|
||||
return throttrip_program(dev, sg, stc, temp);
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct thermal_zone_of_device_ops tegra_of_thermal_ops = {
|
||||
.get_temp = tegra_thermctl_get_temp,
|
||||
.set_trip_temp = tegra_thermctl_set_trip_temp,
|
||||
};
|
||||
|
||||
static int get_hot_temp(struct thermal_zone_device *tz, int *trip, int *temp)
|
||||
{
|
||||
int ntrips, i, ret;
|
||||
|
||||
@ -58,14 +58,6 @@ static LIST_HEAD(thermal_hwmon_list);
|
||||
|
||||
static DEFINE_MUTEX(thermal_hwmon_list_lock);
|
||||
|
||||
static ssize_t
|
||||
name_show(struct device *dev, struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct thermal_hwmon_device *hwmon = dev_get_drvdata(dev);
|
||||
return sprintf(buf, "%s\n", hwmon->type);
|
||||
}
|
||||
static DEVICE_ATTR_RO(name);
|
||||
|
||||
static ssize_t
|
||||
temp_input_show(struct device *dev, struct device_attribute *attr, char *buf)
|
||||
{
|
||||
@ -165,15 +157,12 @@ int thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
|
||||
|
||||
INIT_LIST_HEAD(&hwmon->tz_list);
|
||||
strlcpy(hwmon->type, tz->type, THERMAL_NAME_LENGTH);
|
||||
hwmon->device = hwmon_device_register(NULL);
|
||||
hwmon->device = hwmon_device_register_with_info(NULL, hwmon->type,
|
||||
hwmon, NULL, NULL);
|
||||
if (IS_ERR(hwmon->device)) {
|
||||
result = PTR_ERR(hwmon->device);
|
||||
goto free_mem;
|
||||
}
|
||||
dev_set_drvdata(hwmon->device, hwmon);
|
||||
result = device_create_file(hwmon->device, &dev_attr_name);
|
||||
if (result)
|
||||
goto free_mem;
|
||||
|
||||
register_sys_interface:
|
||||
temp = kzalloc(sizeof(*temp), GFP_KERNEL);
|
||||
@ -222,10 +211,8 @@ int thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
|
||||
free_temp_mem:
|
||||
kfree(temp);
|
||||
unregister_name:
|
||||
if (new_hwmon_device) {
|
||||
device_remove_file(hwmon->device, &dev_attr_name);
|
||||
if (new_hwmon_device)
|
||||
hwmon_device_unregister(hwmon->device);
|
||||
}
|
||||
free_mem:
|
||||
if (new_hwmon_device)
|
||||
kfree(hwmon);
|
||||
@ -267,7 +254,6 @@ void thermal_remove_hwmon_sysfs(struct thermal_zone_device *tz)
|
||||
list_del(&hwmon->node);
|
||||
mutex_unlock(&thermal_hwmon_list_lock);
|
||||
|
||||
device_remove_file(hwmon->device, &dev_attr_name);
|
||||
hwmon_device_unregister(hwmon->device);
|
||||
kfree(hwmon);
|
||||
}
|
||||
|
||||
@ -96,12 +96,12 @@ static int pkg_temp_debugfs_init(void)
|
||||
return -ENOENT;
|
||||
|
||||
d = debugfs_create_u32("pkg_thres_interrupt", S_IRUGO, debugfs,
|
||||
(u32 *)&pkg_interrupt_cnt);
|
||||
&pkg_interrupt_cnt);
|
||||
if (!d)
|
||||
goto err_out;
|
||||
|
||||
d = debugfs_create_u32("pkg_thres_work", S_IRUGO, debugfs,
|
||||
(u32 *)&pkg_work_cnt);
|
||||
&pkg_work_cnt);
|
||||
if (!d)
|
||||
goto err_out;
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user