mediatek: filogic: add support for hw i2c, pwm and thermal

Add support for hardware I2C and PWM units found in the Filogic SoCs
as well as the CPU thermal support.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle 2022-10-05 18:44:42 +01:00
parent 05501304ed
commit 5d921aa72f
8 changed files with 524 additions and 1 deletions

View File

@ -9,6 +9,7 @@
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/phy/phy.h>
#include <dt-bindings/reset/mt7986-resets.h>
#include <dt-bindings/thermal/thermal.h>
/ {
interrupt-parent = <&gic>;
@ -199,6 +200,20 @@
status = "okay";
};
pwm: pwm@10048000 {
compatible = "mediatek,mt7986-pwm";
reg = <0 0x10048000 0 0x1000>;
#clock-cells = <1>;
#pwm-cells = <2>;
interrupts = <GIC_SPI 137 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&topckgen CLK_TOP_PWM_SEL>,
<&infracfg CLK_INFRA_PWM_BSEL>,
<&infracfg CLK_INFRA_PWM1_CK>,
<&infracfg CLK_INFRA_PWM2_CK>;
clock-names = "top", "main", "pwm1", "pwm2";
status = "disabled";
};
uart0: serial@11002000 {
compatible = "mediatek,mt7986-uart",
"mediatek,mt6577-uart";
@ -240,6 +255,20 @@
status = "disabled";
};
i2c0: i2c@11008000 {
compatible = "mediatek,mt7986-i2c";
reg = <0 0x11008000 0 0x90>,
<0 0x10217080 0 0x80>;
interrupts = <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>;
clock-div = <5>;
clocks = <&infracfg CLK_INFRA_I2C0_CK>,
<&infracfg CLK_INFRA_AP_DMA_CK>;
clock-names = "main", "dma";
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
};
spi0: spi@1100a000 {
compatible = "mediatek,mt7986-spi-ipm", "mediatek,spi-ipm";
reg = <0 0x1100a000 0 0x100>;
@ -264,6 +293,16 @@
status = "disabled";
};
auxadc: adc@1100d000 {
compatible = "mediatek,mt7986-auxadc",
"mediatek,mt7622-auxadc";
reg = <0 0x1100d000 0 0x1000>;
clocks = <&infracfg CLK_INFRA_ADC_26M_CK>,
<&infracfg CLK_INFRA_ADC_FRC_CK>;
clock-names = "main", "32k";
#io-channel-cells = <1>;
};
ssusb: usb@11200000 {
compatible = "mediatek,mt7986-xhci",
"mediatek,mtk-xhci";
@ -304,6 +343,21 @@
status = "disabled";
};
thermal: thermal@1100c800 {
#thermal-sensor-cells = <1>;
compatible = "mediatek,mt7986-thermal";
reg = <0 0x1100c800 0 0x800>;
interrupts = <GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&infracfg CLK_INFRA_THERM_CK>,
<&infracfg CLK_INFRA_ADC_26M_CK>,
<&infracfg CLK_INFRA_ADC_FRC_CK>;
clock-names = "therm", "auxadc", "adc_32k";
mediatek,auxadc = <&auxadc>;
mediatek,apmixedsys = <&apmixedsys>;
nvmem-cells = <&thermal_calibration>;
nvmem-cell-names = "calibration-data";
};
pcie: pcie@11280000 {
compatible = "mediatek,mt7986-pcie",
"mediatek,mt8192-pcie";
@ -373,7 +427,6 @@
};
};
efuse: efuse@11d00000 {
compatible = "mediatek,mt7986-efuse",
"mediatek,efuse";
@ -609,4 +662,71 @@
};
};
fan: pwm-fan {
compatible = "pwm-fan";
/* cooling level (0, 1, 2) : (0% duty, 50% duty, 100% duty) */
cooling-levels = <0 128 255>;
#cooling-cells = <2>;
status = "disabled";
};
thermal-zones {
cpu_thermal: cpu-thermal {
polling-delay-passive = <1000>;
polling-delay = <1000>;
thermal-sensors = <&thermal 0>;
trips {
cpu_trip_crit: crit {
temperature = <125000>;
hysteresis = <2000>;
type = "critical";
};
cpu_trip_hot: hot {
temperature = <120000>;
hysteresis = <2000>;
type = "hot";
};
cpu_trip_active_high: active-high {
temperature = <115000>;
hysteresis = <2000>;
type = "active";
};
cpu_trip_active_low: active-low {
temperature = <85000>;
hysteresis = <2000>;
type = "active";
};
cpu_trip_passive: passive {
temperature = <40000>;
hysteresis = <2000>;
type = "passive";
};
};
cooling-maps {
cpu-active-high {
/* active: set fan to cooling level 2 */
cooling-device = <&fan 2 2>;
trip = <&cpu_trip_active_high>;
};
cpu-active-low {
/* active: set fan to cooling level 1 */
cooling-device = <&fan 1 1>;
trip = <&cpu_trip_active_low>;
};
cpu-passive {
/* passive: set fan to cooling level 0 */
cooling-device = <&fan 0 0>;
trip = <&cpu_trip_passive>;
};
};
};
};
};

View File

@ -0,0 +1,66 @@
--- a/drivers/iio/adc/mt6577_auxadc.c
+++ b/drivers/iio/adc/mt6577_auxadc.c
@@ -42,6 +42,7 @@ struct mtk_auxadc_compatible {
struct mt6577_auxadc_device {
void __iomem *reg_base;
struct clk *adc_clk;
+ struct clk *adc_32k_clk;
struct mutex lock;
const struct mtk_auxadc_compatible *dev_comp;
};
@@ -222,6 +223,12 @@ static int __maybe_unused mt6577_auxadc_
return ret;
}
+ ret = clk_prepare_enable(adc_dev->adc_32k_clk);
+ if (ret) {
+ pr_err("failed to enable auxadc clock\n");
+ return ret;
+ }
+
mt6577_auxadc_mod_reg(adc_dev->reg_base + MT6577_AUXADC_MISC,
MT6577_AUXADC_PDN_EN, 0);
mdelay(MT6577_AUXADC_POWER_READY_MS);
@@ -236,6 +243,8 @@ static int __maybe_unused mt6577_auxadc_
mt6577_auxadc_mod_reg(adc_dev->reg_base + MT6577_AUXADC_MISC,
0, MT6577_AUXADC_PDN_EN);
+
+ clk_disable_unprepare(adc_dev->adc_32k_clk);
clk_disable_unprepare(adc_dev->adc_clk);
return 0;
@@ -277,6 +286,17 @@ static int mt6577_auxadc_probe(struct pl
return ret;
}
+ adc_dev->adc_32k_clk = devm_clk_get(&pdev->dev, "32k");
+ if (IS_ERR(adc_dev->adc_32k_clk)) {
+ dev_err(&pdev->dev, "failed to get auxadc 32k clock\n");
+ } else {
+ ret = clk_prepare_enable(adc_dev->adc_32k_clk);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to enable auxadc 32k clock\n");
+ return ret;
+ }
+ }
+
adc_clk_rate = clk_get_rate(adc_dev->adc_clk);
if (!adc_clk_rate) {
ret = -EINVAL;
@@ -306,6 +326,7 @@ err_power_off:
mt6577_auxadc_mod_reg(adc_dev->reg_base + MT6577_AUXADC_MISC,
0, MT6577_AUXADC_PDN_EN);
err_disable_clk:
+ clk_disable_unprepare(adc_dev->adc_32k_clk);
clk_disable_unprepare(adc_dev->adc_clk);
return ret;
}
@@ -320,6 +341,7 @@ static int mt6577_auxadc_remove(struct p
mt6577_auxadc_mod_reg(adc_dev->reg_base + MT6577_AUXADC_MISC,
0, MT6577_AUXADC_PDN_EN);
+ clk_disable_unprepare(adc_dev->adc_32k_clk);
clk_disable_unprepare(adc_dev->adc_clk);
return 0;

View File

@ -0,0 +1,30 @@
--- a/drivers/i2c/busses/i2c-mt65xx.c
+++ b/drivers/i2c/busses/i2c-mt65xx.c
@@ -365,6 +365,19 @@ static const struct mtk_i2c_compatible m
.max_dma_support = 32,
};
+static const struct mtk_i2c_compatible mt7986_compat = {
+ .quirks = &mt7622_i2c_quirks,
+ .regs = mt_i2c_regs_v1,
+ .pmic_i2c = 0,
+ .dcm = 1,
+ .auto_restart = 1,
+ .aux_len_reg = 1,
+ .max_dma_support = 32,
+ .timing_adjust = 0,
+ .dma_sync = 1,
+ .ltiming_adjust = 0,
+};
+
static const struct mtk_i2c_compatible mt8173_compat = {
.regs = mt_i2c_regs_v1,
.pmic_i2c = 0,
@@ -411,6 +424,7 @@ static const struct of_device_id mtk_i2c
{ .compatible = "mediatek,mt6577-i2c", .data = &mt6577_compat },
{ .compatible = "mediatek,mt6589-i2c", .data = &mt6589_compat },
{ .compatible = "mediatek,mt7622-i2c", .data = &mt7622_compat },
+ { .compatible = "mediatek,mt7986-i2c", .data = &mt7986_compat },
{ .compatible = "mediatek,mt8173-i2c", .data = &mt8173_compat },
{ .compatible = "mediatek,mt8183-i2c", .data = &mt8183_compat },
{ .compatible = "mediatek,mt8192-i2c", .data = &mt8192_compat },

View File

@ -0,0 +1,23 @@
--- a/drivers/pwm/pwm-mediatek.c
+++ b/drivers/pwm/pwm-mediatek.c
@@ -302,6 +302,12 @@ static const struct pwm_mediatek_of_data
.has_ck_26m_sel = true,
};
+static const struct pwm_mediatek_of_data mt7986_pwm_data = {
+ .num_pwms = 2,
+ .pwm45_fixup = false,
+ .has_ck_26m_sel = false,
+};
+
static const struct pwm_mediatek_of_data mt8516_pwm_data = {
.num_pwms = 5,
.pwm45_fixup = false,
@@ -314,6 +320,7 @@ static const struct of_device_id pwm_med
{ .compatible = "mediatek,mt7623-pwm", .data = &mt7623_pwm_data },
{ .compatible = "mediatek,mt7628-pwm", .data = &mt7628_pwm_data },
{ .compatible = "mediatek,mt7629-pwm", .data = &mt7629_pwm_data },
+ { .compatible = "mediatek,mt7986-pwm", .data = &mt7986_pwm_data },
{ .compatible = "mediatek,mt8183-pwm", .data = &mt8183_pwm_data },
{ .compatible = "mediatek,mt8516-pwm", .data = &mt8516_pwm_data },
{ },

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@ -0,0 +1,284 @@
From cd47d86ab09f1f3ec5c86441d4fe95e0cf597c06 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Tue, 13 Sep 2022 00:56:24 +0100
Subject: [PATCH] thermal/drivers/mediatek: add support for MT7986 and MT7981
Add support for V3 generation thermal found in MT7986 and MT7981 SoCs.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
drivers/thermal/mtk_thermal.c | 202 +++++++++++++++++++++++++++++++++-
1 file changed, 198 insertions(+), 4 deletions(-)
--- a/drivers/thermal/mtk_thermal.c
+++ b/drivers/thermal/mtk_thermal.c
@@ -150,6 +150,21 @@
#define CALIB_BUF1_VALID_V2(x) (((x) >> 4) & 0x1)
#define CALIB_BUF1_O_SLOPE_SIGN_V2(x) (((x) >> 3) & 0x1)
+/*
+ * Layout of the fuses providing the calibration data
+ * These macros could be used for MT7981 and MT7986.
+ */
+#define CALIB_BUF0_ADC_GE_V3(x) (((x) >> 0) & 0x3ff)
+#define CALIB_BUF0_ADC_OE_V3(x) (((x) >> 10) & 0x3ff)
+#define CALIB_BUF0_DEGC_CALI_V3(x) (((x) >> 20) & 0x3f)
+#define CALIB_BUF0_O_SLOPE_V3(x) (((x) >> 26) & 0x3f)
+#define CALIB_BUF1_VTS_TS1_V3(x) (((x) >> 0) & 0x1ff)
+#define CALIB_BUF1_VTS_TS2_V3(x) (((x) >> 21) & 0x1ff)
+#define CALIB_BUF1_VTS_TSABB_V3(x) (((x) >> 9) & 0x1ff)
+#define CALIB_BUF1_VALID_V3(x) (((x) >> 18) & 0x1)
+#define CALIB_BUF1_O_SLOPE_SIGN_V3(x) (((x) >> 19) & 0x1)
+#define CALIB_BUF1_ID_V3(x) (((x) >> 20) & 0x1)
+
enum {
VTS1,
VTS2,
@@ -163,6 +178,7 @@ enum {
enum mtk_thermal_version {
MTK_THERMAL_V1 = 1,
MTK_THERMAL_V2,
+ MTK_THERMAL_V3,
};
/* MT2701 thermal sensors */
@@ -245,6 +261,27 @@ enum mtk_thermal_version {
/* The calibration coefficient of sensor */
#define MT8183_CALIBRATION 153
+/* AUXADC channel 11 is used for the temperature sensors */
+#define MT7986_TEMP_AUXADC_CHANNEL 11
+
+/* The total number of temperature sensors in the MT7986 */
+#define MT7986_NUM_SENSORS 1
+
+/* The number of banks in the MT7986 */
+#define MT7986_NUM_ZONES 1
+
+/* The number of sensing points per bank */
+#define MT7986_NUM_SENSORS_PER_ZONE 1
+
+/* MT7986 thermal sensors */
+#define MT7986_TS1 0
+
+/* The number of controller in the MT7986 */
+#define MT7986_NUM_CONTROLLER 1
+
+/* The calibration coefficient of sensor */
+#define MT7986_CALIBRATION 165
+
struct mtk_thermal;
struct thermal_bank_cfg {
@@ -279,6 +316,7 @@ struct mtk_thermal {
struct clk *clk_peri_therm;
struct clk *clk_auxadc;
+ struct clk *clk_adc_32k;
/* lock: for getting and putting banks */
struct mutex lock;
@@ -386,6 +424,14 @@ static const int mt7622_mux_values[MT762
static const int mt7622_vts_index[MT7622_NUM_SENSORS] = { VTS1 };
static const int mt7622_tc_offset[MT7622_NUM_CONTROLLER] = { 0x0, };
+/* MT7986 thermal sensor data */
+static const int mt7986_bank_data[MT7986_NUM_SENSORS] = { MT7986_TS1, };
+static const int mt7986_msr[MT7986_NUM_SENSORS_PER_ZONE] = { TEMP_MSR0, };
+static const int mt7986_adcpnp[MT7986_NUM_SENSORS_PER_ZONE] = { TEMP_ADCPNP0, };
+static const int mt7986_mux_values[MT7986_NUM_SENSORS] = { 0, };
+static const int mt7986_vts_index[MT7986_NUM_SENSORS] = { VTS1 };
+static const int mt7986_tc_offset[MT7986_NUM_CONTROLLER] = { 0x0, };
+
/*
* The MT8173 thermal controller has four banks. Each bank can read up to
* four temperature sensors simultaneously. The MT8173 has a total of 5
@@ -549,6 +595,30 @@ static const struct mtk_thermal_data mt8
.version = MTK_THERMAL_V1,
};
+/*
+ * MT7986 uses AUXADC Channel 11 for raw data access.
+ */
+static const struct mtk_thermal_data mt7986_thermal_data = {
+ .auxadc_channel = MT7986_TEMP_AUXADC_CHANNEL,
+ .num_banks = MT7986_NUM_ZONES,
+ .num_sensors = MT7986_NUM_SENSORS,
+ .vts_index = mt7986_vts_index,
+ .cali_val = MT7986_CALIBRATION,
+ .num_controller = MT7986_NUM_CONTROLLER,
+ .controller_offset = mt7986_tc_offset,
+ .need_switch_bank = true,
+ .bank_data = {
+ {
+ .num_sensors = 1,
+ .sensors = mt7986_bank_data,
+ },
+ },
+ .msr = mt7986_msr,
+ .adcpnp = mt7986_adcpnp,
+ .sensor_mux_values = mt7986_mux_values,
+ .version = MTK_THERMAL_V3,
+};
+
/**
* raw_to_mcelsius - convert a raw ADC value to mcelsius
* @mt: The thermal controller
@@ -603,6 +673,22 @@ static int raw_to_mcelsius_v2(struct mtk
return (format_2 - tmp) * 100;
}
+static int raw_to_mcelsius_v3(struct mtk_thermal *mt, int sensno, s32 raw)
+{
+ s32 tmp;
+
+ if (raw == 0)
+ return 0;
+
+ raw &= 0xfff;
+ tmp = 100000 * 15 / 16 * 10000;
+ tmp /= 4096 - 512 + mt->adc_ge;
+ tmp /= 1490;
+ tmp *= raw - mt->vts[sensno] - 2900;
+
+ return mt->degc_cali * 500 - tmp;
+}
+
/**
* mtk_thermal_get_bank - get bank
* @bank: The bank
@@ -659,9 +745,12 @@ static int mtk_thermal_bank_temperature(
if (mt->conf->version == MTK_THERMAL_V1) {
temp = raw_to_mcelsius_v1(
mt, conf->bank_data[bank->id].sensors[i], raw);
- } else {
+ } else if (mt->conf->version == MTK_THERMAL_V2) {
temp = raw_to_mcelsius_v2(
mt, conf->bank_data[bank->id].sensors[i], raw);
+ } else {
+ temp = raw_to_mcelsius_v3(
+ mt, conf->bank_data[bank->id].sensors[i], raw);
}
/*
@@ -887,6 +976,26 @@ static int mtk_thermal_extract_efuse_v2(
return 0;
}
+static int mtk_thermal_extract_efuse_v3(struct mtk_thermal *mt, u32 *buf)
+{
+ if (!CALIB_BUF1_VALID_V3(buf[1]))
+ return -EINVAL;
+
+ mt->adc_oe = CALIB_BUF0_ADC_OE_V3(buf[0]);
+ mt->adc_ge = CALIB_BUF0_ADC_GE_V3(buf[0]);
+ mt->degc_cali = CALIB_BUF0_DEGC_CALI_V3(buf[0]);
+ mt->o_slope = CALIB_BUF0_O_SLOPE_V3(buf[0]);
+ mt->vts[VTS1] = CALIB_BUF1_VTS_TS1_V3(buf[1]);
+ mt->vts[VTS2] = CALIB_BUF1_VTS_TS2_V3(buf[1]);
+ mt->vts[VTSABB] = CALIB_BUF1_VTS_TSABB_V3(buf[1]);
+ mt->o_slope_sign = CALIB_BUF1_O_SLOPE_SIGN_V3(buf[1]);
+
+ if (CALIB_BUF1_ID_V3(buf[1]) == 0)
+ mt->o_slope = 0;
+
+ return 0;
+}
+
static int mtk_thermal_get_calibration_data(struct device *dev,
struct mtk_thermal *mt)
{
@@ -897,6 +1006,7 @@ static int mtk_thermal_get_calibration_d
/* Start with default values */
mt->adc_ge = 512;
+ mt->adc_oe = 512;
for (i = 0; i < mt->conf->num_sensors; i++)
mt->vts[i] = 260;
mt->degc_cali = 40;
@@ -924,8 +1034,10 @@ static int mtk_thermal_get_calibration_d
if (mt->conf->version == MTK_THERMAL_V1)
ret = mtk_thermal_extract_efuse_v1(mt, buf);
- else
+ else if (mt->conf->version == MTK_THERMAL_V2)
ret = mtk_thermal_extract_efuse_v2(mt, buf);
+ else
+ ret = mtk_thermal_extract_efuse_v3(mt, buf);
if (ret) {
dev_info(dev, "Device not calibrated, using default calibration values\n");
@@ -956,6 +1068,10 @@ static const struct of_device_id mtk_the
.data = (void *)&mt7622_thermal_data,
},
{
+ .compatible = "mediatek,mt7986-thermal",
+ .data = (void *)&mt7986_thermal_data,
+ },
+ {
.compatible = "mediatek,mt8183-thermal",
.data = (void *)&mt8183_thermal_data,
}, {
@@ -1009,6 +1125,12 @@ static int mtk_thermal_probe(struct plat
if (IS_ERR(mt->clk_auxadc))
return PTR_ERR(mt->clk_auxadc);
+ if (mt->conf->version == MTK_THERMAL_V3) {
+ mt->clk_adc_32k = devm_clk_get(&pdev->dev, "adc_32k");
+ if (IS_ERR(mt->clk_adc_32k))
+ return PTR_ERR(mt->clk_adc_32k);
+ }
+
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
mt->thermal_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(mt->thermal_base))
@@ -1058,10 +1180,18 @@ static int mtk_thermal_probe(struct plat
if (ret)
return ret;
+ if (mt->conf->version == MTK_THERMAL_V3) {
+ ret = clk_prepare_enable(mt->clk_adc_32k);
+ if (ret) {
+ dev_err(&pdev->dev, "Can't enable auxadc 32k clk: %d\n", ret);
+ return ret;
+ }
+ }
+
ret = clk_prepare_enable(mt->clk_auxadc);
if (ret) {
dev_err(&pdev->dev, "Can't enable auxadc clk: %d\n", ret);
- return ret;
+ goto err_disable_clk_adc_32k;
}
ret = clk_prepare_enable(mt->clk_peri_therm);
@@ -1070,7 +1200,8 @@ static int mtk_thermal_probe(struct plat
goto err_disable_clk_auxadc;
}
- if (mt->conf->version == MTK_THERMAL_V2) {
+ if (mt->conf->version == MTK_THERMAL_V2 ||
+ mt->conf->version == MTK_THERMAL_V3) {
mtk_thermal_turn_on_buffer(apmixed_base);
mtk_thermal_release_periodic_ts(mt, auxadc_base);
}
@@ -1099,6 +1230,9 @@ err_disable_clk_peri_therm:
clk_disable_unprepare(mt->clk_peri_therm);
err_disable_clk_auxadc:
clk_disable_unprepare(mt->clk_auxadc);
+err_disable_clk_adc_32k:
+ if (mt->conf->version == MTK_THERMAL_V3)
+ clk_disable_unprepare(mt->clk_adc_32k);
return ret;
}
@@ -1110,6 +1244,9 @@ static int mtk_thermal_remove(struct pla
clk_disable_unprepare(mt->clk_peri_therm);
clk_disable_unprepare(mt->clk_auxadc);
+ if (mt->conf->version == MTK_THERMAL_V3)
+ clk_disable_unprepare(mt->clk_adc_32k);
+
return 0;
}