* [PATCH V6 1/2] ARM: dts: imx7s: add temperature monitor support @ 2018-03-02 1:59 Anson Huang 2018-03-02 1:59 ` [PATCH V6 2/2] thermal: imx: add i.MX7 thermal sensor support Anson Huang 2018-03-08 8:36 ` [PATCH V6 1/2] ARM: dts: imx7s: add temperature monitor support Shawn Guo 0 siblings, 2 replies; 7+ messages in thread From: Anson Huang @ 2018-03-02 1:59 UTC (permalink / raw) To: leonard.crestez, rui.zhang, edubezval, robh+dt, mark.rutland, shawnguo, kernel, fabio.estevam, linux Cc: Linux-imx, linux-pm, devicetree, linux-kernel, linux-arm-kernel Add i.MX7 temperature monitor support. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Acked-by: Dong Aisheng <aisheng.dong@nxp.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Reviewed-by: Rob Herring <robh@kernel.org> --- changes since V5: no code change, just add Reviewed-by. arch/arm/boot/dts/imx7s.dtsi | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi index 9aa2bb9..6a5c1bf 100644 --- a/arch/arm/boot/dts/imx7s.dtsi +++ b/arch/arm/boot/dts/imx7s.dtsi @@ -511,9 +511,29 @@ }; ocotp: ocotp-ctrl@30350000 { + #address-cells = <1>; + #size-cells = <1>; compatible = "fsl,imx7d-ocotp", "syscon"; reg = <0x30350000 0x10000>; clocks = <&clks IMX7D_OCOTP_CLK>; + + tempmon_calib: calib@3c { + reg = <0x3c 0x4>; + }; + + tempmon_temp_grade: temp-grade@10 { + reg = <0x10 0x4>; + }; + }; + + tempmon: tempmon { + compatible = "fsl,imx7d-tempmon"; + interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>; + fsl,tempmon =<&anatop>; + nvmem-cells = <&tempmon_calib>, + <&tempmon_temp_grade>; + nvmem-cell-names = "calib", "temp_grade"; + clocks = <&clks IMX7D_PLL_SYS_MAIN_CLK>; }; anatop: anatop@30360000 { -- 2.7.4 ^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH V6 2/2] thermal: imx: add i.MX7 thermal sensor support 2018-03-02 1:59 [PATCH V6 1/2] ARM: dts: imx7s: add temperature monitor support Anson Huang @ 2018-03-02 1:59 ` Anson Huang 2018-03-13 6:13 ` Anson Huang 2018-03-08 8:36 ` [PATCH V6 1/2] ARM: dts: imx7s: add temperature monitor support Shawn Guo 1 sibling, 1 reply; 7+ messages in thread From: Anson Huang @ 2018-03-02 1:59 UTC (permalink / raw) To: leonard.crestez, rui.zhang, edubezval, robh+dt, mark.rutland, shawnguo, kernel, fabio.estevam, linux Cc: Linux-imx, linux-pm, devicetree, linux-kernel, linux-arm-kernel This patch adds i.MX7 thermal sensor support, most of the i.MX7 thermal sensor functions are same with i.MX6 except the registers offset/layout, so we move those registers offset/layout definitions to soc data structure. i.MX7 uses single calibration data @25C, the calibration data is located at OCOTP offset 0x4F0, bit[17:9], the formula is as below: Tmeas = (Nmeas - n1) + 25; n1 is the fuse value for 25C. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Bai Ping <ping.bai@nxp.com> Acked-by: Dong Aisheng <aisheng.dong@nxp.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Reviewed-by: Rob Herring <robh@kernel.org> --- changes since V5: no code change, just add Reviewed-by. .../devicetree/bindings/thermal/imx-thermal.txt | 9 +- drivers/thermal/imx_thermal.c | 295 ++++++++++++++++----- 2 files changed, 239 insertions(+), 65 deletions(-) diff --git a/Documentation/devicetree/bindings/thermal/imx-thermal.txt b/Documentation/devicetree/bindings/thermal/imx-thermal.txt index 28be51a..38bffcc 100644 --- a/Documentation/devicetree/bindings/thermal/imx-thermal.txt +++ b/Documentation/devicetree/bindings/thermal/imx-thermal.txt @@ -1,8 +1,13 @@ * Temperature Monitor (TEMPMON) on Freescale i.MX SoCs Required properties: -- compatible : "fsl,imx6q-tempmon" for i.MX6Q, "fsl,imx6sx-tempmon" for i.MX6SX. - i.MX6SX has two more IRQs than i.MX6Q, one is IRQ_LOW and the other is IRQ_PANIC, +- compatible : must be one of following: + - "fsl,imx6q-tempmon" for i.MX6Q, + - "fsl,imx6sx-tempmon" for i.MX6SX, + - "fsl,imx7d-tempmon" for i.MX7S/D. +- interrupts : the interrupt output of the controller: + i.MX6Q has one IRQ which will be triggered when temperature is higher than high threshold, + i.MX6SX and i.MX7S/D have two more IRQs than i.MX6Q, one is IRQ_LOW and the other is IRQ_PANIC, when temperature is below than low threshold, IRQ_LOW will be triggered, when temperature is higher than panic threshold, system will auto reboot by SRC module. - fsl,tempmon : phandle pointer to system controller that contains TEMPMON diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c index a67781b..569d41b 100644 --- a/drivers/thermal/imx_thermal.c +++ b/drivers/thermal/imx_thermal.c @@ -31,35 +31,57 @@ #define REG_CLR 0x8 #define REG_TOG 0xc -#define MISC0 0x0150 -#define MISC0_REFTOP_SELBIASOFF (1 << 3) -#define MISC1 0x0160 -#define MISC1_IRQ_TEMPHIGH (1 << 29) +/* i.MX6 specific */ +#define IMX6_MISC0 0x0150 +#define IMX6_MISC0_REFTOP_SELBIASOFF (1 << 3) +#define IMX6_MISC1 0x0160 +#define IMX6_MISC1_IRQ_TEMPHIGH (1 << 29) /* Below LOW and PANIC bits are only for TEMPMON_IMX6SX */ -#define MISC1_IRQ_TEMPLOW (1 << 28) -#define MISC1_IRQ_TEMPPANIC (1 << 27) - -#define TEMPSENSE0 0x0180 -#define TEMPSENSE0_ALARM_VALUE_SHIFT 20 -#define TEMPSENSE0_ALARM_VALUE_MASK (0xfff << TEMPSENSE0_ALARM_VALUE_SHIFT) -#define TEMPSENSE0_TEMP_CNT_SHIFT 8 -#define TEMPSENSE0_TEMP_CNT_MASK (0xfff << TEMPSENSE0_TEMP_CNT_SHIFT) -#define TEMPSENSE0_FINISHED (1 << 2) -#define TEMPSENSE0_MEASURE_TEMP (1 << 1) -#define TEMPSENSE0_POWER_DOWN (1 << 0) - -#define TEMPSENSE1 0x0190 -#define TEMPSENSE1_MEASURE_FREQ 0xffff -/* Below TEMPSENSE2 is only for TEMPMON_IMX6SX */ -#define TEMPSENSE2 0x0290 -#define TEMPSENSE2_LOW_VALUE_SHIFT 0 -#define TEMPSENSE2_LOW_VALUE_MASK 0xfff -#define TEMPSENSE2_PANIC_VALUE_SHIFT 16 -#define TEMPSENSE2_PANIC_VALUE_MASK 0xfff0000 +#define IMX6_MISC1_IRQ_TEMPLOW (1 << 28) +#define IMX6_MISC1_IRQ_TEMPPANIC (1 << 27) + +#define IMX6_TEMPSENSE0 0x0180 +#define IMX6_TEMPSENSE0_ALARM_VALUE_SHIFT 20 +#define IMX6_TEMPSENSE0_ALARM_VALUE_MASK (0xfff << 20) +#define IMX6_TEMPSENSE0_TEMP_CNT_SHIFT 8 +#define IMX6_TEMPSENSE0_TEMP_CNT_MASK (0xfff << 8) +#define IMX6_TEMPSENSE0_FINISHED (1 << 2) +#define IMX6_TEMPSENSE0_MEASURE_TEMP (1 << 1) +#define IMX6_TEMPSENSE0_POWER_DOWN (1 << 0) + +#define IMX6_TEMPSENSE1 0x0190 +#define IMX6_TEMPSENSE1_MEASURE_FREQ 0xffff +#define IMX6_TEMPSENSE1_MEASURE_FREQ_SHIFT 0 #define OCOTP_MEM0 0x0480 #define OCOTP_ANA1 0x04e0 +/* Below TEMPSENSE2 is only for TEMPMON_IMX6SX */ +#define IMX6_TEMPSENSE2 0x0290 +#define IMX6_TEMPSENSE2_LOW_VALUE_SHIFT 0 +#define IMX6_TEMPSENSE2_LOW_VALUE_MASK 0xfff +#define IMX6_TEMPSENSE2_PANIC_VALUE_SHIFT 16 +#define IMX6_TEMPSENSE2_PANIC_VALUE_MASK 0xfff0000 + +/* i.MX7 specific */ +#define IMX7_ANADIG_DIGPROG 0x800 +#define IMX7_TEMPSENSE0 0x300 +#define IMX7_TEMPSENSE0_PANIC_ALARM_SHIFT 18 +#define IMX7_TEMPSENSE0_PANIC_ALARM_MASK (0x1ff << 18) +#define IMX7_TEMPSENSE0_HIGH_ALARM_SHIFT 9 +#define IMX7_TEMPSENSE0_HIGH_ALARM_MASK (0x1ff << 9) +#define IMX7_TEMPSENSE0_LOW_ALARM_SHIFT 0 +#define IMX7_TEMPSENSE0_LOW_ALARM_MASK 0x1ff + +#define IMX7_TEMPSENSE1 0x310 +#define IMX7_TEMPSENSE1_MEASURE_FREQ_SHIFT 16 +#define IMX7_TEMPSENSE1_MEASURE_FREQ_MASK (0xffff << 16) +#define IMX7_TEMPSENSE1_FINISHED (1 << 11) +#define IMX7_TEMPSENSE1_MEASURE_TEMP (1 << 10) +#define IMX7_TEMPSENSE1_POWER_DOWN (1 << 9) +#define IMX7_TEMPSENSE1_TEMP_VALUE_SHIFT 0 +#define IMX7_TEMPSENSE1_TEMP_VALUE_MASK 0x1ff + /* The driver supports 1 passive trip point and 1 critical trip point */ enum imx_thermal_trip { IMX_TRIP_PASSIVE, @@ -72,17 +94,114 @@ enum imx_thermal_trip { #define TEMPMON_IMX6Q 1 #define TEMPMON_IMX6SX 2 +#define TEMPMON_IMX7D 3 struct thermal_soc_data { u32 version; + + u32 sensor_ctrl; + u32 power_down_mask; + u32 measure_temp_mask; + + u32 measure_freq_ctrl; + u32 measure_freq_mask; + u32 measure_freq_shift; + + u32 temp_data; + u32 temp_value_mask; + u32 temp_value_shift; + u32 temp_valid_mask; + + u32 panic_alarm_ctrl; + u32 panic_alarm_mask; + u32 panic_alarm_shift; + + u32 high_alarm_ctrl; + u32 high_alarm_mask; + u32 high_alarm_shift; + + u32 low_alarm_ctrl; + u32 low_alarm_mask; + u32 low_alarm_shift; }; static struct thermal_soc_data thermal_imx6q_data = { .version = TEMPMON_IMX6Q, + + .sensor_ctrl = IMX6_TEMPSENSE0, + .power_down_mask = IMX6_TEMPSENSE0_POWER_DOWN, + .measure_temp_mask = IMX6_TEMPSENSE0_MEASURE_TEMP, + + .measure_freq_ctrl = IMX6_TEMPSENSE1, + .measure_freq_shift = IMX6_TEMPSENSE1_MEASURE_FREQ_SHIFT, + .measure_freq_mask = IMX6_TEMPSENSE1_MEASURE_FREQ, + + .temp_data = IMX6_TEMPSENSE0, + .temp_value_mask = IMX6_TEMPSENSE0_TEMP_CNT_MASK, + .temp_value_shift = IMX6_TEMPSENSE0_TEMP_CNT_SHIFT, + .temp_valid_mask = IMX6_TEMPSENSE0_FINISHED, + + .high_alarm_ctrl = IMX6_TEMPSENSE0, + .high_alarm_mask = IMX6_TEMPSENSE0_ALARM_VALUE_MASK, + .high_alarm_shift = IMX6_TEMPSENSE0_ALARM_VALUE_SHIFT, }; static struct thermal_soc_data thermal_imx6sx_data = { .version = TEMPMON_IMX6SX, + + .sensor_ctrl = IMX6_TEMPSENSE0, + .power_down_mask = IMX6_TEMPSENSE0_POWER_DOWN, + .measure_temp_mask = IMX6_TEMPSENSE0_MEASURE_TEMP, + + .measure_freq_ctrl = IMX6_TEMPSENSE1, + .measure_freq_shift = IMX6_TEMPSENSE1_MEASURE_FREQ_SHIFT, + .measure_freq_mask = IMX6_TEMPSENSE1_MEASURE_FREQ, + + .temp_data = IMX6_TEMPSENSE0, + .temp_value_mask = IMX6_TEMPSENSE0_TEMP_CNT_MASK, + .temp_value_shift = IMX6_TEMPSENSE0_TEMP_CNT_SHIFT, + .temp_valid_mask = IMX6_TEMPSENSE0_FINISHED, + + .high_alarm_ctrl = IMX6_TEMPSENSE0, + .high_alarm_mask = IMX6_TEMPSENSE0_ALARM_VALUE_MASK, + .high_alarm_shift = IMX6_TEMPSENSE0_ALARM_VALUE_SHIFT, + + .panic_alarm_ctrl = IMX6_TEMPSENSE2, + .panic_alarm_mask = IMX6_TEMPSENSE2_PANIC_VALUE_MASK, + .panic_alarm_shift = IMX6_TEMPSENSE2_PANIC_VALUE_SHIFT, + + .low_alarm_ctrl = IMX6_TEMPSENSE2, + .low_alarm_mask = IMX6_TEMPSENSE2_LOW_VALUE_MASK, + .low_alarm_shift = IMX6_TEMPSENSE2_LOW_VALUE_SHIFT, +}; + +static struct thermal_soc_data thermal_imx7d_data = { + .version = TEMPMON_IMX7D, + + .sensor_ctrl = IMX7_TEMPSENSE1, + .power_down_mask = IMX7_TEMPSENSE1_POWER_DOWN, + .measure_temp_mask = IMX7_TEMPSENSE1_MEASURE_TEMP, + + .measure_freq_ctrl = IMX7_TEMPSENSE1, + .measure_freq_shift = IMX7_TEMPSENSE1_MEASURE_FREQ_SHIFT, + .measure_freq_mask = IMX7_TEMPSENSE1_MEASURE_FREQ_MASK, + + .temp_data = IMX7_TEMPSENSE1, + .temp_value_mask = IMX7_TEMPSENSE1_TEMP_VALUE_MASK, + .temp_value_shift = IMX7_TEMPSENSE1_TEMP_VALUE_SHIFT, + .temp_valid_mask = IMX7_TEMPSENSE1_FINISHED, + + .panic_alarm_ctrl = IMX7_TEMPSENSE1, + .panic_alarm_mask = IMX7_TEMPSENSE0_PANIC_ALARM_MASK, + .panic_alarm_shift = IMX7_TEMPSENSE0_PANIC_ALARM_SHIFT, + + .high_alarm_ctrl = IMX7_TEMPSENSE0, + .high_alarm_mask = IMX7_TEMPSENSE0_HIGH_ALARM_MASK, + .high_alarm_shift = IMX7_TEMPSENSE0_HIGH_ALARM_SHIFT, + + .low_alarm_ctrl = IMX7_TEMPSENSE0, + .low_alarm_mask = IMX7_TEMPSENSE0_LOW_ALARM_MASK, + .low_alarm_shift = IMX7_TEMPSENSE0_LOW_ALARM_SHIFT, }; struct imx_thermal_data { @@ -107,31 +226,42 @@ struct imx_thermal_data { static void imx_set_panic_temp(struct imx_thermal_data *data, int panic_temp) { + const struct thermal_soc_data *soc_data = data->socdata; struct regmap *map = data->tempmon; int critical_value; critical_value = (data->c2 - panic_temp) / data->c1; - regmap_write(map, TEMPSENSE2 + REG_CLR, TEMPSENSE2_PANIC_VALUE_MASK); - regmap_write(map, TEMPSENSE2 + REG_SET, critical_value << - TEMPSENSE2_PANIC_VALUE_SHIFT); + + regmap_write(map, soc_data->panic_alarm_ctrl + REG_CLR, + soc_data->panic_alarm_mask); + regmap_write(map, soc_data->panic_alarm_ctrl + REG_SET, + critical_value << soc_data->panic_alarm_shift); } static void imx_set_alarm_temp(struct imx_thermal_data *data, int alarm_temp) { struct regmap *map = data->tempmon; + const struct thermal_soc_data *soc_data = data->socdata; int alarm_value; data->alarm_temp = alarm_temp; - alarm_value = (data->c2 - alarm_temp) / data->c1; - regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_ALARM_VALUE_MASK); - regmap_write(map, TEMPSENSE0 + REG_SET, alarm_value << - TEMPSENSE0_ALARM_VALUE_SHIFT); + + if (data->socdata->version == TEMPMON_IMX7D) + alarm_value = alarm_temp / 1000 + data->c1 - 25; + else + alarm_value = (data->c2 - alarm_temp) / data->c1; + + regmap_write(map, soc_data->high_alarm_ctrl + REG_CLR, + soc_data->high_alarm_mask); + regmap_write(map, soc_data->high_alarm_ctrl + REG_SET, + alarm_value << soc_data->high_alarm_shift); } static int imx_get_temp(struct thermal_zone_device *tz, int *temp) { struct imx_thermal_data *data = tz->devdata; + const struct thermal_soc_data *soc_data = data->socdata; struct regmap *map = data->tempmon; unsigned int n_meas; bool wait; @@ -139,16 +269,18 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp) if (data->mode == THERMAL_DEVICE_ENABLED) { /* Check if a measurement is currently in progress */ - regmap_read(map, TEMPSENSE0, &val); - wait = !(val & TEMPSENSE0_FINISHED); + regmap_read(map, soc_data->temp_data, &val); + wait = !(val & soc_data->temp_valid_mask); } else { /* * Every time we measure the temperature, we will power on the * temperature sensor, enable measurements, take a reading, * disable measurements, power off the temperature sensor. */ - regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_POWER_DOWN); - regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_MEASURE_TEMP); + regmap_write(map, soc_data->sensor_ctrl + REG_CLR, + soc_data->power_down_mask); + regmap_write(map, soc_data->sensor_ctrl + REG_SET, + soc_data->measure_temp_mask); wait = true; } @@ -160,22 +292,28 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp) if (wait) usleep_range(20, 50); - regmap_read(map, TEMPSENSE0, &val); + regmap_read(map, soc_data->temp_data, &val); if (data->mode != THERMAL_DEVICE_ENABLED) { - regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_MEASURE_TEMP); - regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_POWER_DOWN); + regmap_write(map, soc_data->sensor_ctrl + REG_CLR, + soc_data->measure_temp_mask); + regmap_write(map, soc_data->sensor_ctrl + REG_SET, + soc_data->power_down_mask); } - if ((val & TEMPSENSE0_FINISHED) == 0) { + if ((val & soc_data->temp_valid_mask) == 0) { dev_dbg(&tz->device, "temp measurement never finished\n"); return -EAGAIN; } - n_meas = (val & TEMPSENSE0_TEMP_CNT_MASK) >> TEMPSENSE0_TEMP_CNT_SHIFT; + n_meas = (val & soc_data->temp_value_mask) + >> soc_data->temp_value_shift; /* See imx_init_calib() for formula derivation */ - *temp = data->c2 - n_meas * data->c1; + if (data->socdata->version == TEMPMON_IMX7D) + *temp = (n_meas - data->c1 + 25) * 1000; + else + *temp = data->c2 - n_meas * data->c1; /* Update alarm value to next higher trip point for TEMPMON_IMX6Q */ if (data->socdata->version == TEMPMON_IMX6Q) { @@ -219,21 +357,26 @@ static int imx_set_mode(struct thermal_zone_device *tz, { struct imx_thermal_data *data = tz->devdata; struct regmap *map = data->tempmon; + const struct thermal_soc_data *soc_data = data->socdata; if (mode == THERMAL_DEVICE_ENABLED) { tz->polling_delay = IMX_POLLING_DELAY; tz->passive_delay = IMX_PASSIVE_DELAY; - regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_POWER_DOWN); - regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_MEASURE_TEMP); + regmap_write(map, soc_data->sensor_ctrl + REG_CLR, + soc_data->power_down_mask); + regmap_write(map, soc_data->sensor_ctrl + REG_SET, + soc_data->measure_temp_mask); if (!data->irq_enabled) { data->irq_enabled = true; enable_irq(data->irq); } } else { - regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_MEASURE_TEMP); - regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_POWER_DOWN); + regmap_write(map, soc_data->sensor_ctrl + REG_CLR, + soc_data->measure_temp_mask); + regmap_write(map, soc_data->sensor_ctrl + REG_SET, + soc_data->power_down_mask); tz->polling_delay = 0; tz->passive_delay = 0; @@ -355,6 +498,15 @@ static int imx_init_calib(struct platform_device *pdev, u32 ocotp_ana1) } /* + * On i.MX7D, we only use the calibration data at 25C to get the temp, + * Tmeas = ( Nmeas - n1) + 25; n1 is the fuse value for 25C. + */ + if (data->socdata->version == TEMPMON_IMX7D) { + data->c1 = (ocotp_ana1 >> 9) & 0x1ff; + return 0; + } + + /* * 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. @@ -492,6 +644,7 @@ static irqreturn_t imx_thermal_alarm_irq_thread(int irq, void *dev) static const struct of_device_id of_imx_thermal_match[] = { { .compatible = "fsl,imx6q-tempmon", .data = &thermal_imx6q_data, }, { .compatible = "fsl,imx6sx-tempmon", .data = &thermal_imx6sx_data, }, + { .compatible = "fsl,imx7d-tempmon", .data = &thermal_imx7d_data, }, { /* end */ } }; MODULE_DEVICE_TABLE(of, of_imx_thermal_match); @@ -523,14 +676,15 @@ static int imx_thermal_probe(struct platform_device *pdev) /* make sure the IRQ flag is clear before enabling irq on i.MX6SX */ if (data->socdata->version == TEMPMON_IMX6SX) { - regmap_write(map, MISC1 + REG_CLR, MISC1_IRQ_TEMPHIGH | - MISC1_IRQ_TEMPLOW | MISC1_IRQ_TEMPPANIC); + regmap_write(map, IMX6_MISC1 + REG_CLR, + IMX6_MISC1_IRQ_TEMPHIGH | IMX6_MISC1_IRQ_TEMPLOW + | IMX6_MISC1_IRQ_TEMPPANIC); /* * reset value of LOW ALARM is incorrect, set it to lowest * value to avoid false trigger of low alarm. */ - regmap_write(map, TEMPSENSE2 + REG_SET, - TEMPSENSE2_LOW_VALUE_MASK); + regmap_write(map, data->socdata->low_alarm_ctrl + REG_SET, + data->socdata->low_alarm_mask); } data->irq = platform_get_irq(pdev, 0); @@ -557,11 +711,17 @@ static int imx_thermal_probe(struct platform_device *pdev) } /* Make sure sensor is in known good state for measurements */ - regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_POWER_DOWN); - regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_MEASURE_TEMP); - regmap_write(map, TEMPSENSE1 + REG_CLR, TEMPSENSE1_MEASURE_FREQ); - regmap_write(map, MISC0 + REG_SET, MISC0_REFTOP_SELBIASOFF); - regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_POWER_DOWN); + regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, + data->socdata->power_down_mask); + regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, + data->socdata->measure_temp_mask); + regmap_write(map, data->socdata->measure_freq_ctrl + REG_CLR, + data->socdata->measure_freq_mask); + if (data->socdata->version != TEMPMON_IMX7D) + regmap_write(map, IMX6_MISC0 + REG_SET, + IMX6_MISC0_REFTOP_SELBIASOFF); + regmap_write(map, data->socdata->sensor_ctrl + REG_SET, + data->socdata->power_down_mask); data->policy = cpufreq_cpu_get(0); if (!data->policy) { @@ -626,16 +786,20 @@ static int imx_thermal_probe(struct platform_device *pdev) data->temp_passive / 1000); /* Enable measurements at ~ 10 Hz */ - regmap_write(map, TEMPSENSE1 + REG_CLR, TEMPSENSE1_MEASURE_FREQ); + regmap_write(map, data->socdata->measure_freq_ctrl + REG_CLR, + data->socdata->measure_freq_mask); measure_freq = DIV_ROUND_UP(32768, 10); /* 10 Hz */ - regmap_write(map, TEMPSENSE1 + REG_SET, measure_freq); + regmap_write(map, data->socdata->measure_freq_ctrl + REG_SET, + measure_freq << data->socdata->measure_freq_shift); imx_set_alarm_temp(data, data->temp_passive); if (data->socdata->version == TEMPMON_IMX6SX) imx_set_panic_temp(data, data->temp_critical); - regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_POWER_DOWN); - regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_MEASURE_TEMP); + regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, + data->socdata->power_down_mask); + regmap_write(map, data->socdata->sensor_ctrl + REG_SET, + data->socdata->measure_temp_mask); ret = devm_request_threaded_irq(&pdev->dev, data->irq, imx_thermal_alarm_irq, imx_thermal_alarm_irq_thread, @@ -661,7 +825,8 @@ static int imx_thermal_remove(struct platform_device *pdev) struct regmap *map = data->tempmon; /* Disable measurements */ - regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_POWER_DOWN); + regmap_write(map, data->socdata->sensor_ctrl + REG_SET, + data->socdata->power_down_mask); if (!IS_ERR(data->thermal_clk)) clk_disable_unprepare(data->thermal_clk); @@ -684,8 +849,10 @@ static int imx_thermal_suspend(struct device *dev) * temperature will be read as the thermal sensor is powered * down. */ - regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_MEASURE_TEMP); - regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_POWER_DOWN); + regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, + data->socdata->measure_temp_mask); + regmap_write(map, data->socdata->sensor_ctrl + REG_SET, + data->socdata->power_down_mask); data->mode = THERMAL_DEVICE_DISABLED; clk_disable_unprepare(data->thermal_clk); @@ -702,8 +869,10 @@ static int imx_thermal_resume(struct device *dev) if (ret) return ret; /* Enabled thermal sensor after resume */ - regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_POWER_DOWN); - regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_MEASURE_TEMP); + regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, + data->socdata->power_down_mask); + regmap_write(map, data->socdata->sensor_ctrl + REG_SET, + data->socdata->measure_temp_mask); data->mode = THERMAL_DEVICE_ENABLED; return 0; -- 2.7.4 ^ permalink raw reply related [flat|nested] 7+ messages in thread
* RE: [PATCH V6 2/2] thermal: imx: add i.MX7 thermal sensor support 2018-03-02 1:59 ` [PATCH V6 2/2] thermal: imx: add i.MX7 thermal sensor support Anson Huang @ 2018-03-13 6:13 ` Anson Huang 2018-03-13 6:51 ` Zhang Rui 0 siblings, 1 reply; 7+ messages in thread From: Anson Huang @ 2018-03-13 6:13 UTC (permalink / raw) To: Leonard Crestez, rui.zhang, edubezval, robh+dt, mark.rutland, shawnguo, kernel, Fabio Estevam, linux Cc: linux-arm-kernel, devicetree, dl-linux-imx, linux-kernel, linux-pm Ping... @rui.zhang@intel.com, can you help review this patch? Anson Huang Best Regards! > -----Original Message----- > From: linux-arm-kernel [mailto:linux-arm-kernel-bounces@lists.infradead.org] > On Behalf Of Anson Huang > Sent: Friday, March 2, 2018 10:00 AM > To: Leonard Crestez <leonard.crestez@nxp.com>; rui.zhang@intel.com; > edubezval@gmail.com; robh+dt@kernel.org; mark.rutland@arm.com; > shawnguo@kernel.org; kernel@pengutronix.de; Fabio Estevam > <fabio.estevam@nxp.com>; linux@armlinux.org.uk > Cc: linux-arm-kernel@lists.infradead.org; devicetree@vger.kernel.org; > dl-linux-imx <linux-imx@nxp.com>; linux-kernel@vger.kernel.org; > linux-pm@vger.kernel.org > Subject: [PATCH V6 2/2] thermal: imx: add i.MX7 thermal sensor support > > This patch adds i.MX7 thermal sensor support, most of the i.MX7 thermal sensor > functions are same with > i.MX6 except the registers offset/layout, so we move those registers > offset/layout definitions to soc data structure. > > i.MX7 uses single calibration data @25C, the calibration data is located at > OCOTP offset 0x4F0, bit[17:9], the formula is as below: > > Tmeas = (Nmeas - n1) + 25; n1 is the fuse value for 25C. > > Signed-off-by: Anson Huang <Anson.Huang@nxp.com> > Signed-off-by: Bai Ping <ping.bai@nxp.com> > Acked-by: Dong Aisheng <aisheng.dong@nxp.com> > Acked-by: Shawn Guo <shawnguo@kernel.org> > Reviewed-by: Rob Herring <robh@kernel.org> > --- > changes since V5: > no code change, just add Reviewed-by. > .../devicetree/bindings/thermal/imx-thermal.txt | 9 +- > drivers/thermal/imx_thermal.c | 295 > ++++++++++++++++----- > 2 files changed, 239 insertions(+), 65 deletions(-) > > diff --git a/Documentation/devicetree/bindings/thermal/imx-thermal.txt > b/Documentation/devicetree/bindings/thermal/imx-thermal.txt > index 28be51a..38bffcc 100644 > --- a/Documentation/devicetree/bindings/thermal/imx-thermal.txt > +++ b/Documentation/devicetree/bindings/thermal/imx-thermal.txt > @@ -1,8 +1,13 @@ > * Temperature Monitor (TEMPMON) on Freescale i.MX SoCs > > Required properties: > -- compatible : "fsl,imx6q-tempmon" for i.MX6Q, "fsl,imx6sx-tempmon" for > i.MX6SX. > - i.MX6SX has two more IRQs than i.MX6Q, one is IRQ_LOW and the other is > IRQ_PANIC, > +- compatible : must be one of following: > + - "fsl,imx6q-tempmon" for i.MX6Q, > + - "fsl,imx6sx-tempmon" for i.MX6SX, > + - "fsl,imx7d-tempmon" for i.MX7S/D. > +- interrupts : the interrupt output of the controller: > + i.MX6Q has one IRQ which will be triggered when temperature is higher > +than high threshold, > + i.MX6SX and i.MX7S/D have two more IRQs than i.MX6Q, one is IRQ_LOW > +and the other is IRQ_PANIC, > when temperature is below than low threshold, IRQ_LOW will be triggered, > when temperature > is higher than panic threshold, system will auto reboot by SRC module. > - fsl,tempmon : phandle pointer to system controller that contains TEMPMON > diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c > index a67781b..569d41b 100644 > --- a/drivers/thermal/imx_thermal.c > +++ b/drivers/thermal/imx_thermal.c > @@ -31,35 +31,57 @@ > #define REG_CLR 0x8 > #define REG_TOG 0xc > > -#define MISC0 0x0150 > -#define MISC0_REFTOP_SELBIASOFF (1 << 3) > -#define MISC1 0x0160 > -#define MISC1_IRQ_TEMPHIGH (1 << 29) > +/* i.MX6 specific */ > +#define IMX6_MISC0 0x0150 > +#define IMX6_MISC0_REFTOP_SELBIASOFF (1 << 3) > +#define IMX6_MISC1 0x0160 > +#define IMX6_MISC1_IRQ_TEMPHIGH (1 << 29) > /* Below LOW and PANIC bits are only for TEMPMON_IMX6SX */ > -#define MISC1_IRQ_TEMPLOW (1 << 28) > -#define MISC1_IRQ_TEMPPANIC (1 << 27) > - > -#define TEMPSENSE0 0x0180 > -#define TEMPSENSE0_ALARM_VALUE_SHIFT 20 > -#define TEMPSENSE0_ALARM_VALUE_MASK (0xfff << > TEMPSENSE0_ALARM_VALUE_SHIFT) > -#define TEMPSENSE0_TEMP_CNT_SHIFT 8 > -#define TEMPSENSE0_TEMP_CNT_MASK (0xfff << > TEMPSENSE0_TEMP_CNT_SHIFT) > -#define TEMPSENSE0_FINISHED (1 << 2) > -#define TEMPSENSE0_MEASURE_TEMP (1 << 1) > -#define TEMPSENSE0_POWER_DOWN (1 << 0) > - > -#define TEMPSENSE1 0x0190 > -#define TEMPSENSE1_MEASURE_FREQ 0xffff > -/* Below TEMPSENSE2 is only for TEMPMON_IMX6SX */ > -#define TEMPSENSE2 0x0290 > -#define TEMPSENSE2_LOW_VALUE_SHIFT 0 > -#define TEMPSENSE2_LOW_VALUE_MASK 0xfff > -#define TEMPSENSE2_PANIC_VALUE_SHIFT 16 > -#define TEMPSENSE2_PANIC_VALUE_MASK 0xfff0000 > +#define IMX6_MISC1_IRQ_TEMPLOW (1 << 28) > +#define IMX6_MISC1_IRQ_TEMPPANIC (1 << 27) > + > +#define IMX6_TEMPSENSE0 0x0180 > +#define IMX6_TEMPSENSE0_ALARM_VALUE_SHIFT 20 > +#define IMX6_TEMPSENSE0_ALARM_VALUE_MASK (0xfff << 20) > +#define IMX6_TEMPSENSE0_TEMP_CNT_SHIFT 8 > +#define IMX6_TEMPSENSE0_TEMP_CNT_MASK (0xfff << 8) > +#define IMX6_TEMPSENSE0_FINISHED (1 << 2) > +#define IMX6_TEMPSENSE0_MEASURE_TEMP (1 << 1) > +#define IMX6_TEMPSENSE0_POWER_DOWN (1 << 0) > + > +#define IMX6_TEMPSENSE1 0x0190 > +#define IMX6_TEMPSENSE1_MEASURE_FREQ 0xffff > +#define IMX6_TEMPSENSE1_MEASURE_FREQ_SHIFT 0 > > #define OCOTP_MEM0 0x0480 > #define OCOTP_ANA1 0x04e0 > > +/* Below TEMPSENSE2 is only for TEMPMON_IMX6SX */ > +#define IMX6_TEMPSENSE2 0x0290 > +#define IMX6_TEMPSENSE2_LOW_VALUE_SHIFT 0 > +#define IMX6_TEMPSENSE2_LOW_VALUE_MASK 0xfff > +#define IMX6_TEMPSENSE2_PANIC_VALUE_SHIFT 16 > +#define IMX6_TEMPSENSE2_PANIC_VALUE_MASK 0xfff0000 > + > +/* i.MX7 specific */ > +#define IMX7_ANADIG_DIGPROG 0x800 > +#define IMX7_TEMPSENSE0 0x300 > +#define IMX7_TEMPSENSE0_PANIC_ALARM_SHIFT 18 > +#define IMX7_TEMPSENSE0_PANIC_ALARM_MASK (0x1ff << 18) > +#define IMX7_TEMPSENSE0_HIGH_ALARM_SHIFT 9 > +#define IMX7_TEMPSENSE0_HIGH_ALARM_MASK (0x1ff << 9) > +#define IMX7_TEMPSENSE0_LOW_ALARM_SHIFT 0 > +#define IMX7_TEMPSENSE0_LOW_ALARM_MASK 0x1ff > + > +#define IMX7_TEMPSENSE1 0x310 > +#define IMX7_TEMPSENSE1_MEASURE_FREQ_SHIFT 16 > +#define IMX7_TEMPSENSE1_MEASURE_FREQ_MASK (0xffff << 16) > +#define IMX7_TEMPSENSE1_FINISHED (1 << 11) > +#define IMX7_TEMPSENSE1_MEASURE_TEMP (1 << 10) > +#define IMX7_TEMPSENSE1_POWER_DOWN (1 << 9) > +#define IMX7_TEMPSENSE1_TEMP_VALUE_SHIFT 0 > +#define IMX7_TEMPSENSE1_TEMP_VALUE_MASK 0x1ff > + > /* The driver supports 1 passive trip point and 1 critical trip point */ enum > imx_thermal_trip { > IMX_TRIP_PASSIVE, > @@ -72,17 +94,114 @@ enum imx_thermal_trip { > > #define TEMPMON_IMX6Q 1 > #define TEMPMON_IMX6SX 2 > +#define TEMPMON_IMX7D 3 > > struct thermal_soc_data { > u32 version; > + > + u32 sensor_ctrl; > + u32 power_down_mask; > + u32 measure_temp_mask; > + > + u32 measure_freq_ctrl; > + u32 measure_freq_mask; > + u32 measure_freq_shift; > + > + u32 temp_data; > + u32 temp_value_mask; > + u32 temp_value_shift; > + u32 temp_valid_mask; > + > + u32 panic_alarm_ctrl; > + u32 panic_alarm_mask; > + u32 panic_alarm_shift; > + > + u32 high_alarm_ctrl; > + u32 high_alarm_mask; > + u32 high_alarm_shift; > + > + u32 low_alarm_ctrl; > + u32 low_alarm_mask; > + u32 low_alarm_shift; > }; > > static struct thermal_soc_data thermal_imx6q_data = { > .version = TEMPMON_IMX6Q, > + > + .sensor_ctrl = IMX6_TEMPSENSE0, > + .power_down_mask = IMX6_TEMPSENSE0_POWER_DOWN, > + .measure_temp_mask = IMX6_TEMPSENSE0_MEASURE_TEMP, > + > + .measure_freq_ctrl = IMX6_TEMPSENSE1, > + .measure_freq_shift = IMX6_TEMPSENSE1_MEASURE_FREQ_SHIFT, > + .measure_freq_mask = IMX6_TEMPSENSE1_MEASURE_FREQ, > + > + .temp_data = IMX6_TEMPSENSE0, > + .temp_value_mask = IMX6_TEMPSENSE0_TEMP_CNT_MASK, > + .temp_value_shift = IMX6_TEMPSENSE0_TEMP_CNT_SHIFT, > + .temp_valid_mask = IMX6_TEMPSENSE0_FINISHED, > + > + .high_alarm_ctrl = IMX6_TEMPSENSE0, > + .high_alarm_mask = IMX6_TEMPSENSE0_ALARM_VALUE_MASK, > + .high_alarm_shift = IMX6_TEMPSENSE0_ALARM_VALUE_SHIFT, > }; > > static struct thermal_soc_data thermal_imx6sx_data = { > .version = TEMPMON_IMX6SX, > + > + .sensor_ctrl = IMX6_TEMPSENSE0, > + .power_down_mask = IMX6_TEMPSENSE0_POWER_DOWN, > + .measure_temp_mask = IMX6_TEMPSENSE0_MEASURE_TEMP, > + > + .measure_freq_ctrl = IMX6_TEMPSENSE1, > + .measure_freq_shift = IMX6_TEMPSENSE1_MEASURE_FREQ_SHIFT, > + .measure_freq_mask = IMX6_TEMPSENSE1_MEASURE_FREQ, > + > + .temp_data = IMX6_TEMPSENSE0, > + .temp_value_mask = IMX6_TEMPSENSE0_TEMP_CNT_MASK, > + .temp_value_shift = IMX6_TEMPSENSE0_TEMP_CNT_SHIFT, > + .temp_valid_mask = IMX6_TEMPSENSE0_FINISHED, > + > + .high_alarm_ctrl = IMX6_TEMPSENSE0, > + .high_alarm_mask = IMX6_TEMPSENSE0_ALARM_VALUE_MASK, > + .high_alarm_shift = IMX6_TEMPSENSE0_ALARM_VALUE_SHIFT, > + > + .panic_alarm_ctrl = IMX6_TEMPSENSE2, > + .panic_alarm_mask = IMX6_TEMPSENSE2_PANIC_VALUE_MASK, > + .panic_alarm_shift = IMX6_TEMPSENSE2_PANIC_VALUE_SHIFT, > + > + .low_alarm_ctrl = IMX6_TEMPSENSE2, > + .low_alarm_mask = IMX6_TEMPSENSE2_LOW_VALUE_MASK, > + .low_alarm_shift = IMX6_TEMPSENSE2_LOW_VALUE_SHIFT, }; > + > +static struct thermal_soc_data thermal_imx7d_data = { > + .version = TEMPMON_IMX7D, > + > + .sensor_ctrl = IMX7_TEMPSENSE1, > + .power_down_mask = IMX7_TEMPSENSE1_POWER_DOWN, > + .measure_temp_mask = IMX7_TEMPSENSE1_MEASURE_TEMP, > + > + .measure_freq_ctrl = IMX7_TEMPSENSE1, > + .measure_freq_shift = IMX7_TEMPSENSE1_MEASURE_FREQ_SHIFT, > + .measure_freq_mask = IMX7_TEMPSENSE1_MEASURE_FREQ_MASK, > + > + .temp_data = IMX7_TEMPSENSE1, > + .temp_value_mask = IMX7_TEMPSENSE1_TEMP_VALUE_MASK, > + .temp_value_shift = IMX7_TEMPSENSE1_TEMP_VALUE_SHIFT, > + .temp_valid_mask = IMX7_TEMPSENSE1_FINISHED, > + > + .panic_alarm_ctrl = IMX7_TEMPSENSE1, > + .panic_alarm_mask = IMX7_TEMPSENSE0_PANIC_ALARM_MASK, > + .panic_alarm_shift = IMX7_TEMPSENSE0_PANIC_ALARM_SHIFT, > + > + .high_alarm_ctrl = IMX7_TEMPSENSE0, > + .high_alarm_mask = IMX7_TEMPSENSE0_HIGH_ALARM_MASK, > + .high_alarm_shift = IMX7_TEMPSENSE0_HIGH_ALARM_SHIFT, > + > + .low_alarm_ctrl = IMX7_TEMPSENSE0, > + .low_alarm_mask = IMX7_TEMPSENSE0_LOW_ALARM_MASK, > + .low_alarm_shift = IMX7_TEMPSENSE0_LOW_ALARM_SHIFT, > }; > > struct imx_thermal_data { > @@ -107,31 +226,42 @@ struct imx_thermal_data { static void > imx_set_panic_temp(struct imx_thermal_data *data, > int panic_temp) > { > + const struct thermal_soc_data *soc_data = data->socdata; > struct regmap *map = data->tempmon; > int critical_value; > > critical_value = (data->c2 - panic_temp) / data->c1; > - regmap_write(map, TEMPSENSE2 + REG_CLR, > TEMPSENSE2_PANIC_VALUE_MASK); > - regmap_write(map, TEMPSENSE2 + REG_SET, critical_value << > - TEMPSENSE2_PANIC_VALUE_SHIFT); > + > + regmap_write(map, soc_data->panic_alarm_ctrl + REG_CLR, > + soc_data->panic_alarm_mask); > + regmap_write(map, soc_data->panic_alarm_ctrl + REG_SET, > + critical_value << soc_data->panic_alarm_shift); > } > > static void imx_set_alarm_temp(struct imx_thermal_data *data, > int alarm_temp) > { > struct regmap *map = data->tempmon; > + const struct thermal_soc_data *soc_data = data->socdata; > int alarm_value; > > data->alarm_temp = alarm_temp; > - alarm_value = (data->c2 - alarm_temp) / data->c1; > - regmap_write(map, TEMPSENSE0 + REG_CLR, > TEMPSENSE0_ALARM_VALUE_MASK); > - regmap_write(map, TEMPSENSE0 + REG_SET, alarm_value << > - TEMPSENSE0_ALARM_VALUE_SHIFT); > + > + if (data->socdata->version == TEMPMON_IMX7D) > + alarm_value = alarm_temp / 1000 + data->c1 - 25; > + else > + alarm_value = (data->c2 - alarm_temp) / data->c1; > + > + regmap_write(map, soc_data->high_alarm_ctrl + REG_CLR, > + soc_data->high_alarm_mask); > + regmap_write(map, soc_data->high_alarm_ctrl + REG_SET, > + alarm_value << soc_data->high_alarm_shift); > } > > static int imx_get_temp(struct thermal_zone_device *tz, int *temp) { > struct imx_thermal_data *data = tz->devdata; > + const struct thermal_soc_data *soc_data = data->socdata; > struct regmap *map = data->tempmon; > unsigned int n_meas; > bool wait; > @@ -139,16 +269,18 @@ static int imx_get_temp(struct thermal_zone_device > *tz, int *temp) > > if (data->mode == THERMAL_DEVICE_ENABLED) { > /* Check if a measurement is currently in progress */ > - regmap_read(map, TEMPSENSE0, &val); > - wait = !(val & TEMPSENSE0_FINISHED); > + regmap_read(map, soc_data->temp_data, &val); > + wait = !(val & soc_data->temp_valid_mask); > } else { > /* > * Every time we measure the temperature, we will power on the > * temperature sensor, enable measurements, take a reading, > * disable measurements, power off the temperature sensor. > */ > - regmap_write(map, TEMPSENSE0 + REG_CLR, > TEMPSENSE0_POWER_DOWN); > - regmap_write(map, TEMPSENSE0 + REG_SET, > TEMPSENSE0_MEASURE_TEMP); > + regmap_write(map, soc_data->sensor_ctrl + REG_CLR, > + soc_data->power_down_mask); > + regmap_write(map, soc_data->sensor_ctrl + REG_SET, > + soc_data->measure_temp_mask); > > wait = true; > } > @@ -160,22 +292,28 @@ static int imx_get_temp(struct thermal_zone_device > *tz, int *temp) > if (wait) > usleep_range(20, 50); > > - regmap_read(map, TEMPSENSE0, &val); > + regmap_read(map, soc_data->temp_data, &val); > > if (data->mode != THERMAL_DEVICE_ENABLED) { > - regmap_write(map, TEMPSENSE0 + REG_CLR, > TEMPSENSE0_MEASURE_TEMP); > - regmap_write(map, TEMPSENSE0 + REG_SET, > TEMPSENSE0_POWER_DOWN); > + regmap_write(map, soc_data->sensor_ctrl + REG_CLR, > + soc_data->measure_temp_mask); > + regmap_write(map, soc_data->sensor_ctrl + REG_SET, > + soc_data->power_down_mask); > } > > - if ((val & TEMPSENSE0_FINISHED) == 0) { > + if ((val & soc_data->temp_valid_mask) == 0) { > dev_dbg(&tz->device, "temp measurement never finished\n"); > return -EAGAIN; > } > > - n_meas = (val & TEMPSENSE0_TEMP_CNT_MASK) >> > TEMPSENSE0_TEMP_CNT_SHIFT; > + n_meas = (val & soc_data->temp_value_mask) > + >> soc_data->temp_value_shift; > > /* See imx_init_calib() for formula derivation */ > - *temp = data->c2 - n_meas * data->c1; > + if (data->socdata->version == TEMPMON_IMX7D) > + *temp = (n_meas - data->c1 + 25) * 1000; > + else > + *temp = data->c2 - n_meas * data->c1; > > /* Update alarm value to next higher trip point for TEMPMON_IMX6Q */ > if (data->socdata->version == TEMPMON_IMX6Q) { @@ -219,21 +357,26 > @@ static int imx_set_mode(struct thermal_zone_device *tz, { > struct imx_thermal_data *data = tz->devdata; > struct regmap *map = data->tempmon; > + const struct thermal_soc_data *soc_data = data->socdata; > > if (mode == THERMAL_DEVICE_ENABLED) { > tz->polling_delay = IMX_POLLING_DELAY; > tz->passive_delay = IMX_PASSIVE_DELAY; > > - regmap_write(map, TEMPSENSE0 + REG_CLR, > TEMPSENSE0_POWER_DOWN); > - regmap_write(map, TEMPSENSE0 + REG_SET, > TEMPSENSE0_MEASURE_TEMP); > + regmap_write(map, soc_data->sensor_ctrl + REG_CLR, > + soc_data->power_down_mask); > + regmap_write(map, soc_data->sensor_ctrl + REG_SET, > + soc_data->measure_temp_mask); > > if (!data->irq_enabled) { > data->irq_enabled = true; > enable_irq(data->irq); > } > } else { > - regmap_write(map, TEMPSENSE0 + REG_CLR, > TEMPSENSE0_MEASURE_TEMP); > - regmap_write(map, TEMPSENSE0 + REG_SET, > TEMPSENSE0_POWER_DOWN); > + regmap_write(map, soc_data->sensor_ctrl + REG_CLR, > + soc_data->measure_temp_mask); > + regmap_write(map, soc_data->sensor_ctrl + REG_SET, > + soc_data->power_down_mask); > > tz->polling_delay = 0; > tz->passive_delay = 0; > @@ -355,6 +498,15 @@ static int imx_init_calib(struct platform_device *pdev, > u32 ocotp_ana1) > } > > /* > + * On i.MX7D, we only use the calibration data at 25C to get the temp, > + * Tmeas = ( Nmeas - n1) + 25; n1 is the fuse value for 25C. > + */ > + if (data->socdata->version == TEMPMON_IMX7D) { > + data->c1 = (ocotp_ana1 >> 9) & 0x1ff; > + return 0; > + } > + > + /* > * 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. > @@ -492,6 +644,7 @@ static irqreturn_t imx_thermal_alarm_irq_thread(int > irq, void *dev) static const struct of_device_id of_imx_thermal_match[] = { > { .compatible = "fsl,imx6q-tempmon", .data = &thermal_imx6q_data, }, > { .compatible = "fsl,imx6sx-tempmon", .data = &thermal_imx6sx_data, }, > + { .compatible = "fsl,imx7d-tempmon", .data = &thermal_imx7d_data, }, > { /* end */ } > }; > MODULE_DEVICE_TABLE(of, of_imx_thermal_match); @@ -523,14 +676,15 > @@ static int imx_thermal_probe(struct platform_device *pdev) > > /* make sure the IRQ flag is clear before enabling irq on i.MX6SX */ > if (data->socdata->version == TEMPMON_IMX6SX) { > - regmap_write(map, MISC1 + REG_CLR, MISC1_IRQ_TEMPHIGH | > - MISC1_IRQ_TEMPLOW | MISC1_IRQ_TEMPPANIC); > + regmap_write(map, IMX6_MISC1 + REG_CLR, > + IMX6_MISC1_IRQ_TEMPHIGH | IMX6_MISC1_IRQ_TEMPLOW > + | IMX6_MISC1_IRQ_TEMPPANIC); > /* > * reset value of LOW ALARM is incorrect, set it to lowest > * value to avoid false trigger of low alarm. > */ > - regmap_write(map, TEMPSENSE2 + REG_SET, > - TEMPSENSE2_LOW_VALUE_MASK); > + regmap_write(map, data->socdata->low_alarm_ctrl + REG_SET, > + data->socdata->low_alarm_mask); > } > > data->irq = platform_get_irq(pdev, 0); @@ -557,11 +711,17 @@ static int > imx_thermal_probe(struct platform_device *pdev) > } > > /* Make sure sensor is in known good state for measurements */ > - regmap_write(map, TEMPSENSE0 + REG_CLR, > TEMPSENSE0_POWER_DOWN); > - regmap_write(map, TEMPSENSE0 + REG_CLR, > TEMPSENSE0_MEASURE_TEMP); > - regmap_write(map, TEMPSENSE1 + REG_CLR, > TEMPSENSE1_MEASURE_FREQ); > - regmap_write(map, MISC0 + REG_SET, MISC0_REFTOP_SELBIASOFF); > - regmap_write(map, TEMPSENSE0 + REG_SET, > TEMPSENSE0_POWER_DOWN); > + regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, > + data->socdata->power_down_mask); > + regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, > + data->socdata->measure_temp_mask); > + regmap_write(map, data->socdata->measure_freq_ctrl + REG_CLR, > + data->socdata->measure_freq_mask); > + if (data->socdata->version != TEMPMON_IMX7D) > + regmap_write(map, IMX6_MISC0 + REG_SET, > + IMX6_MISC0_REFTOP_SELBIASOFF); > + regmap_write(map, data->socdata->sensor_ctrl + REG_SET, > + data->socdata->power_down_mask); > > data->policy = cpufreq_cpu_get(0); > if (!data->policy) { > @@ -626,16 +786,20 @@ static int imx_thermal_probe(struct platform_device > *pdev) > data->temp_passive / 1000); > > /* Enable measurements at ~ 10 Hz */ > - regmap_write(map, TEMPSENSE1 + REG_CLR, > TEMPSENSE1_MEASURE_FREQ); > + regmap_write(map, data->socdata->measure_freq_ctrl + REG_CLR, > + data->socdata->measure_freq_mask); > measure_freq = DIV_ROUND_UP(32768, 10); /* 10 Hz */ > - regmap_write(map, TEMPSENSE1 + REG_SET, measure_freq); > + regmap_write(map, data->socdata->measure_freq_ctrl + REG_SET, > + measure_freq << data->socdata->measure_freq_shift); > imx_set_alarm_temp(data, data->temp_passive); > > if (data->socdata->version == TEMPMON_IMX6SX) > imx_set_panic_temp(data, data->temp_critical); > > - regmap_write(map, TEMPSENSE0 + REG_CLR, > TEMPSENSE0_POWER_DOWN); > - regmap_write(map, TEMPSENSE0 + REG_SET, > TEMPSENSE0_MEASURE_TEMP); > + regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, > + data->socdata->power_down_mask); > + regmap_write(map, data->socdata->sensor_ctrl + REG_SET, > + data->socdata->measure_temp_mask); > > ret = devm_request_threaded_irq(&pdev->dev, data->irq, > imx_thermal_alarm_irq, imx_thermal_alarm_irq_thread, @@ > -661,7 +825,8 @@ static int imx_thermal_remove(struct platform_device > *pdev) > struct regmap *map = data->tempmon; > > /* Disable measurements */ > - regmap_write(map, TEMPSENSE0 + REG_SET, > TEMPSENSE0_POWER_DOWN); > + regmap_write(map, data->socdata->sensor_ctrl + REG_SET, > + data->socdata->power_down_mask); > if (!IS_ERR(data->thermal_clk)) > clk_disable_unprepare(data->thermal_clk); > > @@ -684,8 +849,10 @@ static int imx_thermal_suspend(struct device *dev) > * temperature will be read as the thermal sensor is powered > * down. > */ > - regmap_write(map, TEMPSENSE0 + REG_CLR, > TEMPSENSE0_MEASURE_TEMP); > - regmap_write(map, TEMPSENSE0 + REG_SET, > TEMPSENSE0_POWER_DOWN); > + regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, > + data->socdata->measure_temp_mask); > + regmap_write(map, data->socdata->sensor_ctrl + REG_SET, > + data->socdata->power_down_mask); > data->mode = THERMAL_DEVICE_DISABLED; > clk_disable_unprepare(data->thermal_clk); > > @@ -702,8 +869,10 @@ static int imx_thermal_resume(struct device *dev) > if (ret) > return ret; > /* Enabled thermal sensor after resume */ > - regmap_write(map, TEMPSENSE0 + REG_CLR, > TEMPSENSE0_POWER_DOWN); > - regmap_write(map, TEMPSENSE0 + REG_SET, > TEMPSENSE0_MEASURE_TEMP); > + regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, > + data->socdata->power_down_mask); > + regmap_write(map, data->socdata->sensor_ctrl + REG_SET, > + data->socdata->measure_temp_mask); > data->mode = THERMAL_DEVICE_ENABLED; > > return 0; > -- > 2.7.4 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.infr > adead.org%2Fmailman%2Flistinfo%2Flinux-arm-kernel&data=02%7C01%7Cans > on.huang%40nxp.com%7C06aac542a9cb445ee0f308d57fe1cbba%7C686ea1d3 > bc2b4c6fa92cd99c5c301635%7C0%7C0%7C636555530125162768&sdata=GP4 > UyKpDXyRkmwSIZY9Sb%2BDxO9sPAWCk0O%2FZPYRA0P4%3D&reserved=0 ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH V6 2/2] thermal: imx: add i.MX7 thermal sensor support 2018-03-13 6:13 ` Anson Huang @ 2018-03-13 6:51 ` Zhang Rui 2018-03-15 0:51 ` Eduardo Valentin 0 siblings, 1 reply; 7+ messages in thread From: Zhang Rui @ 2018-03-13 6:51 UTC (permalink / raw) To: Anson Huang, Leonard Crestez, edubezval, robh+dt, mark.rutland, shawnguo, kernel, Fabio Estevam, linux Cc: linux-arm-kernel, devicetree, dl-linux-imx, linux-kernel, linux-pm yeah, will review it and get back to you later. On 二, 2018-03-13 at 06:13 +0000, Anson Huang wrote: > Ping... > > @rui.zhang@intel.com, can you help review this patch? > > Anson Huang > Best Regards! > > > > > > -----Original Message----- > > From: linux-arm-kernel [mailto:linux-arm-kernel-bounces@lists.infra > > dead.org] > > On Behalf Of Anson Huang > > Sent: Friday, March 2, 2018 10:00 AM > > To: Leonard Crestez <leonard.crestez@nxp.com>; rui.zhang@intel.com; > > edubezval@gmail.com; robh+dt@kernel.org; mark.rutland@arm.com; > > shawnguo@kernel.org; kernel@pengutronix.de; Fabio Estevam > > <fabio.estevam@nxp.com>; linux@armlinux.org.uk > > Cc: linux-arm-kernel@lists.infradead.org; devicetree@vger.kernel.or > > g; > > dl-linux-imx <linux-imx@nxp.com>; linux-kernel@vger.kernel.org; > > linux-pm@vger.kernel.org > > Subject: [PATCH V6 2/2] thermal: imx: add i.MX7 thermal sensor > > support > > > > This patch adds i.MX7 thermal sensor support, most of the i.MX7 > > thermal sensor > > functions are same with > > i.MX6 except the registers offset/layout, so we move those > > registers > > offset/layout definitions to soc data structure. > > > > i.MX7 uses single calibration data @25C, the calibration data is > > located at > > OCOTP offset 0x4F0, bit[17:9], the formula is as below: > > > > Tmeas = (Nmeas - n1) + 25; n1 is the fuse value for 25C. > > > > Signed-off-by: Anson Huang <Anson.Huang@nxp.com> > > Signed-off-by: Bai Ping <ping.bai@nxp.com> > > Acked-by: Dong Aisheng <aisheng.dong@nxp.com> > > Acked-by: Shawn Guo <shawnguo@kernel.org> > > Reviewed-by: Rob Herring <robh@kernel.org> > > --- > > changes since V5: > > no code change, just add Reviewed-by. > > .../devicetree/bindings/thermal/imx-thermal.txt | 9 +- > > drivers/thermal/imx_thermal.c | 295 > > ++++++++++++++++----- > > 2 files changed, 239 insertions(+), 65 deletions(-) > > > > diff --git a/Documentation/devicetree/bindings/thermal/imx- > > thermal.txt > > b/Documentation/devicetree/bindings/thermal/imx-thermal.txt > > index 28be51a..38bffcc 100644 > > --- a/Documentation/devicetree/bindings/thermal/imx-thermal.txt > > +++ b/Documentation/devicetree/bindings/thermal/imx-thermal.txt > > @@ -1,8 +1,13 @@ > > * Temperature Monitor (TEMPMON) on Freescale i.MX SoCs > > > > Required properties: > > -- compatible : "fsl,imx6q-tempmon" for i.MX6Q, "fsl,imx6sx- > > tempmon" for > > i.MX6SX. > > - i.MX6SX has two more IRQs than i.MX6Q, one is IRQ_LOW and the > > other is > > IRQ_PANIC, > > +- compatible : must be one of following: > > + - "fsl,imx6q-tempmon" for i.MX6Q, > > + - "fsl,imx6sx-tempmon" for i.MX6SX, > > + - "fsl,imx7d-tempmon" for i.MX7S/D. > > +- interrupts : the interrupt output of the controller: > > + i.MX6Q has one IRQ which will be triggered when temperature is > > higher > > +than high threshold, > > + i.MX6SX and i.MX7S/D have two more IRQs than i.MX6Q, one is > > IRQ_LOW > > +and the other is IRQ_PANIC, > > when temperature is below than low threshold, IRQ_LOW will be > > triggered, > > when temperature > > is higher than panic threshold, system will auto reboot by SRC > > module. > > - fsl,tempmon : phandle pointer to system controller that contains > > TEMPMON > > diff --git a/drivers/thermal/imx_thermal.c > > b/drivers/thermal/imx_thermal.c > > index a67781b..569d41b 100644 > > --- a/drivers/thermal/imx_thermal.c > > +++ b/drivers/thermal/imx_thermal.c > > @@ -31,35 +31,57 @@ > > #define REG_CLR 0x8 > > #define REG_TOG 0xc > > > > -#define MISC0 0x0150 > > -#define MISC0_REFTOP_SELBIASOFF (1 << 3) > > -#define MISC1 0x0160 > > -#define MISC1_IRQ_TEMPHIGH (1 << 29) > > +/* i.MX6 specific */ > > +#define IMX6_MISC0 0x0150 > > +#define IMX6_MISC0_REFTOP_SELBIASOFF (1 << 3) > > +#define IMX6_MISC1 0x0160 > > +#define IMX6_MISC1_IRQ_TEMPHIGH (1 << 29) > > /* Below LOW and PANIC bits are only for TEMPMON_IMX6SX */ > > -#define MISC1_IRQ_TEMPLOW (1 << 28) > > -#define MISC1_IRQ_TEMPPANIC (1 << 27) > > - > > -#define TEMPSENSE0 0x0180 > > -#define TEMPSENSE0_ALARM_VALUE_SHIFT 20 > > -#define TEMPSENSE0_ALARM_VALUE_MASK (0xfff << > > TEMPSENSE0_ALARM_VALUE_SHIFT) > > -#define TEMPSENSE0_TEMP_CNT_SHIFT 8 > > -#define TEMPSENSE0_TEMP_CNT_MASK (0xfff << > > TEMPSENSE0_TEMP_CNT_SHIFT) > > -#define TEMPSENSE0_FINISHED (1 << 2) > > -#define TEMPSENSE0_MEASURE_TEMP (1 << 1) > > -#define TEMPSENSE0_POWER_DOWN (1 << 0) > > - > > -#define TEMPSENSE1 0x0190 > > -#define TEMPSENSE1_MEASURE_FREQ 0xffff > > -/* Below TEMPSENSE2 is only for TEMPMON_IMX6SX */ > > -#define TEMPSENSE2 0x0290 > > -#define TEMPSENSE2_LOW_VALUE_SHIFT 0 > > -#define TEMPSENSE2_LOW_VALUE_MASK 0xfff > > -#define TEMPSENSE2_PANIC_VALUE_SHIFT 16 > > -#define TEMPSENSE2_PANIC_VALUE_MASK 0xfff0000 > > +#define IMX6_MISC1_IRQ_TEMPLOW (1 << 28) > > +#define IMX6_MISC1_IRQ_TEMPPANIC (1 << 27) > > + > > +#define IMX6_TEMPSENSE0 0x0180 > > +#define IMX6_TEMPSENSE0_ALARM_VALUE_SHIFT 20 > > +#define IMX6_TEMPSENSE0_ALARM_VALUE_MASK (0xfff << 20) > > +#define IMX6_TEMPSENSE0_TEMP_CNT_SHIFT 8 > > +#define IMX6_TEMPSENSE0_TEMP_CNT_MASK (0xfff << 8) > > +#define IMX6_TEMPSENSE0_FINISHED (1 << 2) > > +#define IMX6_TEMPSENSE0_MEASURE_TEMP (1 << 1) > > +#define IMX6_TEMPSENSE0_POWER_DOWN (1 << 0) > > + > > +#define IMX6_TEMPSENSE1 0x0190 > > +#define IMX6_TEMPSENSE1_MEASURE_FREQ 0xffff > > +#define IMX6_TEMPSENSE1_MEASURE_FREQ_SHIFT 0 > > > > #define OCOTP_MEM0 0x0480 > > #define OCOTP_ANA1 0x04e0 > > > > +/* Below TEMPSENSE2 is only for TEMPMON_IMX6SX */ > > +#define IMX6_TEMPSENSE2 0x0290 > > +#define IMX6_TEMPSENSE2_LOW_VALUE_SHIFT 0 > > +#define IMX6_TEMPSENSE2_LOW_VALUE_MASK 0xfff > > +#define IMX6_TEMPSENSE2_PANIC_VALUE_SHIFT 16 > > +#define IMX6_TEMPSENSE2_PANIC_VALUE_MASK 0xfff0000 > > + > > +/* i.MX7 specific */ > > +#define IMX7_ANADIG_DIGPROG 0x800 > > +#define IMX7_TEMPSENSE0 0x300 > > +#define IMX7_TEMPSENSE0_PANIC_ALARM_SHIFT 18 > > +#define IMX7_TEMPSENSE0_PANIC_ALARM_MASK (0x1ff << 18) > > +#define IMX7_TEMPSENSE0_HIGH_ALARM_SHIFT 9 > > +#define IMX7_TEMPSENSE0_HIGH_ALARM_MASK (0x1ff << > > 9) > > +#define IMX7_TEMPSENSE0_LOW_ALARM_SHIFT 0 > > +#define IMX7_TEMPSENSE0_LOW_ALARM_MASK 0x1ff > > + > > +#define IMX7_TEMPSENSE1 0x310 > > +#define IMX7_TEMPSENSE1_MEASURE_FREQ_SHIFT 16 > > +#define IMX7_TEMPSENSE1_MEASURE_FREQ_MASK (0xffff << 16) > > +#define IMX7_TEMPSENSE1_FINISHED (1 << 11) > > +#define IMX7_TEMPSENSE1_MEASURE_TEMP (1 << 10) > > +#define IMX7_TEMPSENSE1_POWER_DOWN (1 << 9) > > +#define IMX7_TEMPSENSE1_TEMP_VALUE_SHIFT 0 > > +#define IMX7_TEMPSENSE1_TEMP_VALUE_MASK 0x1ff > > + > > /* The driver supports 1 passive trip point and 1 critical trip > > point */ enum > > imx_thermal_trip { > > IMX_TRIP_PASSIVE, > > @@ -72,17 +94,114 @@ enum imx_thermal_trip { > > > > #define TEMPMON_IMX6Q 1 > > #define TEMPMON_IMX6SX 2 > > +#define TEMPMON_IMX7D 3 > > > > struct thermal_soc_data { > > u32 version; > > + > > + u32 sensor_ctrl; > > + u32 power_down_mask; > > + u32 measure_temp_mask; > > + > > + u32 measure_freq_ctrl; > > + u32 measure_freq_mask; > > + u32 measure_freq_shift; > > + > > + u32 temp_data; > > + u32 temp_value_mask; > > + u32 temp_value_shift; > > + u32 temp_valid_mask; > > + > > + u32 panic_alarm_ctrl; > > + u32 panic_alarm_mask; > > + u32 panic_alarm_shift; > > + > > + u32 high_alarm_ctrl; > > + u32 high_alarm_mask; > > + u32 high_alarm_shift; > > + > > + u32 low_alarm_ctrl; > > + u32 low_alarm_mask; > > + u32 low_alarm_shift; > > }; > > > > static struct thermal_soc_data thermal_imx6q_data = { > > .version = TEMPMON_IMX6Q, > > + > > + .sensor_ctrl = IMX6_TEMPSENSE0, > > + .power_down_mask = IMX6_TEMPSENSE0_POWER_DOWN, > > + .measure_temp_mask = IMX6_TEMPSENSE0_MEASURE_TEMP, > > + > > + .measure_freq_ctrl = IMX6_TEMPSENSE1, > > + .measure_freq_shift = IMX6_TEMPSENSE1_MEASURE_FREQ_SHIFT, > > + .measure_freq_mask = IMX6_TEMPSENSE1_MEASURE_FREQ, > > + > > + .temp_data = IMX6_TEMPSENSE0, > > + .temp_value_mask = IMX6_TEMPSENSE0_TEMP_CNT_MASK, > > + .temp_value_shift = IMX6_TEMPSENSE0_TEMP_CNT_SHIFT, > > + .temp_valid_mask = IMX6_TEMPSENSE0_FINISHED, > > + > > + .high_alarm_ctrl = IMX6_TEMPSENSE0, > > + .high_alarm_mask = IMX6_TEMPSENSE0_ALARM_VALUE_MASK, > > + .high_alarm_shift = IMX6_TEMPSENSE0_ALARM_VALUE_SHIFT, > > }; > > > > static struct thermal_soc_data thermal_imx6sx_data = { > > .version = TEMPMON_IMX6SX, > > + > > + .sensor_ctrl = IMX6_TEMPSENSE0, > > + .power_down_mask = IMX6_TEMPSENSE0_POWER_DOWN, > > + .measure_temp_mask = IMX6_TEMPSENSE0_MEASURE_TEMP, > > + > > + .measure_freq_ctrl = IMX6_TEMPSENSE1, > > + .measure_freq_shift = IMX6_TEMPSENSE1_MEASURE_FREQ_SHIFT, > > + .measure_freq_mask = IMX6_TEMPSENSE1_MEASURE_FREQ, > > + > > + .temp_data = IMX6_TEMPSENSE0, > > + .temp_value_mask = IMX6_TEMPSENSE0_TEMP_CNT_MASK, > > + .temp_value_shift = IMX6_TEMPSENSE0_TEMP_CNT_SHIFT, > > + .temp_valid_mask = IMX6_TEMPSENSE0_FINISHED, > > + > > + .high_alarm_ctrl = IMX6_TEMPSENSE0, > > + .high_alarm_mask = IMX6_TEMPSENSE0_ALARM_VALUE_MASK, > > + .high_alarm_shift = IMX6_TEMPSENSE0_ALARM_VALUE_SHIFT, > > + > > + .panic_alarm_ctrl = IMX6_TEMPSENSE2, > > + .panic_alarm_mask = IMX6_TEMPSENSE2_PANIC_VALUE_MASK, > > + .panic_alarm_shift = IMX6_TEMPSENSE2_PANIC_VALUE_SHIFT, > > + > > + .low_alarm_ctrl = IMX6_TEMPSENSE2, > > + .low_alarm_mask = IMX6_TEMPSENSE2_LOW_VALUE_MASK, > > + .low_alarm_shift = IMX6_TEMPSENSE2_LOW_VALUE_SHIFT, }; > > + > > +static struct thermal_soc_data thermal_imx7d_data = { > > + .version = TEMPMON_IMX7D, > > + > > + .sensor_ctrl = IMX7_TEMPSENSE1, > > + .power_down_mask = IMX7_TEMPSENSE1_POWER_DOWN, > > + .measure_temp_mask = IMX7_TEMPSENSE1_MEASURE_TEMP, > > + > > + .measure_freq_ctrl = IMX7_TEMPSENSE1, > > + .measure_freq_shift = IMX7_TEMPSENSE1_MEASURE_FREQ_SHIFT, > > + .measure_freq_mask = IMX7_TEMPSENSE1_MEASURE_FREQ_MASK, > > + > > + .temp_data = IMX7_TEMPSENSE1, > > + .temp_value_mask = IMX7_TEMPSENSE1_TEMP_VALUE_MASK, > > + .temp_value_shift = IMX7_TEMPSENSE1_TEMP_VALUE_SHIFT, > > + .temp_valid_mask = IMX7_TEMPSENSE1_FINISHED, > > + > > + .panic_alarm_ctrl = IMX7_TEMPSENSE1, > > + .panic_alarm_mask = IMX7_TEMPSENSE0_PANIC_ALARM_MASK, > > + .panic_alarm_shift = IMX7_TEMPSENSE0_PANIC_ALARM_SHIFT, > > + > > + .high_alarm_ctrl = IMX7_TEMPSENSE0, > > + .high_alarm_mask = IMX7_TEMPSENSE0_HIGH_ALARM_MASK, > > + .high_alarm_shift = IMX7_TEMPSENSE0_HIGH_ALARM_SHIFT, > > + > > + .low_alarm_ctrl = IMX7_TEMPSENSE0, > > + .low_alarm_mask = IMX7_TEMPSENSE0_LOW_ALARM_MASK, > > + .low_alarm_shift = IMX7_TEMPSENSE0_LOW_ALARM_SHIFT, > > }; > > > > struct imx_thermal_data { > > @@ -107,31 +226,42 @@ struct imx_thermal_data { static void > > imx_set_panic_temp(struct imx_thermal_data *data, > > int panic_temp) > > { > > + const struct thermal_soc_data *soc_data = data->socdata; > > struct regmap *map = data->tempmon; > > int critical_value; > > > > critical_value = (data->c2 - panic_temp) / data->c1; > > - regmap_write(map, TEMPSENSE2 + REG_CLR, > > TEMPSENSE2_PANIC_VALUE_MASK); > > - regmap_write(map, TEMPSENSE2 + REG_SET, critical_value << > > - TEMPSENSE2_PANIC_VALUE_SHIFT); > > + > > + regmap_write(map, soc_data->panic_alarm_ctrl + REG_CLR, > > + soc_data->panic_alarm_mask); > > + regmap_write(map, soc_data->panic_alarm_ctrl + REG_SET, > > + critical_value << soc_data- > > >panic_alarm_shift); > > } > > > > static void imx_set_alarm_temp(struct imx_thermal_data *data, > > int alarm_temp) > > { > > struct regmap *map = data->tempmon; > > + const struct thermal_soc_data *soc_data = data->socdata; > > int alarm_value; > > > > data->alarm_temp = alarm_temp; > > - alarm_value = (data->c2 - alarm_temp) / data->c1; > > - regmap_write(map, TEMPSENSE0 + REG_CLR, > > TEMPSENSE0_ALARM_VALUE_MASK); > > - regmap_write(map, TEMPSENSE0 + REG_SET, alarm_value << > > - TEMPSENSE0_ALARM_VALUE_SHIFT); > > + > > + if (data->socdata->version == TEMPMON_IMX7D) > > + alarm_value = alarm_temp / 1000 + data->c1 - 25; > > + else > > + alarm_value = (data->c2 - alarm_temp) / data->c1; > > + > > + regmap_write(map, soc_data->high_alarm_ctrl + REG_CLR, > > + soc_data->high_alarm_mask); > > + regmap_write(map, soc_data->high_alarm_ctrl + REG_SET, > > + alarm_value << soc_data->high_alarm_shift); > > } > > > > static int imx_get_temp(struct thermal_zone_device *tz, int > > *temp) { > > struct imx_thermal_data *data = tz->devdata; > > + const struct thermal_soc_data *soc_data = data->socdata; > > struct regmap *map = data->tempmon; > > unsigned int n_meas; > > bool wait; > > @@ -139,16 +269,18 @@ static int imx_get_temp(struct > > thermal_zone_device > > *tz, int *temp) > > > > if (data->mode == THERMAL_DEVICE_ENABLED) { > > /* Check if a measurement is currently in progress > > */ > > - regmap_read(map, TEMPSENSE0, &val); > > - wait = !(val & TEMPSENSE0_FINISHED); > > + regmap_read(map, soc_data->temp_data, &val); > > + wait = !(val & soc_data->temp_valid_mask); > > } else { > > /* > > * Every time we measure the temperature, we will > > power on the > > * temperature sensor, enable measurements, take a > > reading, > > * disable measurements, power off the temperature > > sensor. > > */ > > - regmap_write(map, TEMPSENSE0 + REG_CLR, > > TEMPSENSE0_POWER_DOWN); > > - regmap_write(map, TEMPSENSE0 + REG_SET, > > TEMPSENSE0_MEASURE_TEMP); > > + regmap_write(map, soc_data->sensor_ctrl + REG_CLR, > > + soc_data->power_down_mask); > > + regmap_write(map, soc_data->sensor_ctrl + REG_SET, > > + soc_data->measure_temp_mask); > > > > wait = true; > > } > > @@ -160,22 +292,28 @@ static int imx_get_temp(struct > > thermal_zone_device > > *tz, int *temp) > > if (wait) > > usleep_range(20, 50); > > > > - regmap_read(map, TEMPSENSE0, &val); > > + regmap_read(map, soc_data->temp_data, &val); > > > > if (data->mode != THERMAL_DEVICE_ENABLED) { > > - regmap_write(map, TEMPSENSE0 + REG_CLR, > > TEMPSENSE0_MEASURE_TEMP); > > - regmap_write(map, TEMPSENSE0 + REG_SET, > > TEMPSENSE0_POWER_DOWN); > > + regmap_write(map, soc_data->sensor_ctrl + REG_CLR, > > + soc_data->measure_temp_mask); > > + regmap_write(map, soc_data->sensor_ctrl + REG_SET, > > + soc_data->power_down_mask); > > } > > > > - if ((val & TEMPSENSE0_FINISHED) == 0) { > > + if ((val & soc_data->temp_valid_mask) == 0) { > > dev_dbg(&tz->device, "temp measurement never > > finished\n"); > > return -EAGAIN; > > } > > > > - n_meas = (val & TEMPSENSE0_TEMP_CNT_MASK) >> > > TEMPSENSE0_TEMP_CNT_SHIFT; > > + n_meas = (val & soc_data->temp_value_mask) > > + >> soc_data->temp_value_shift; > > > > /* See imx_init_calib() for formula derivation */ > > - *temp = data->c2 - n_meas * data->c1; > > + if (data->socdata->version == TEMPMON_IMX7D) > > + *temp = (n_meas - data->c1 + 25) * 1000; > > + else > > + *temp = data->c2 - n_meas * data->c1; > > > > /* Update alarm value to next higher trip point for > > TEMPMON_IMX6Q */ > > if (data->socdata->version == TEMPMON_IMX6Q) { @@ -219,21 > > +357,26 > > @@ static int imx_set_mode(struct thermal_zone_device *tz, { > > struct imx_thermal_data *data = tz->devdata; > > struct regmap *map = data->tempmon; > > + const struct thermal_soc_data *soc_data = data->socdata; > > > > if (mode == THERMAL_DEVICE_ENABLED) { > > tz->polling_delay = IMX_POLLING_DELAY; > > tz->passive_delay = IMX_PASSIVE_DELAY; > > > > - regmap_write(map, TEMPSENSE0 + REG_CLR, > > TEMPSENSE0_POWER_DOWN); > > - regmap_write(map, TEMPSENSE0 + REG_SET, > > TEMPSENSE0_MEASURE_TEMP); > > + regmap_write(map, soc_data->sensor_ctrl + REG_CLR, > > + soc_data->power_down_mask); > > + regmap_write(map, soc_data->sensor_ctrl + REG_SET, > > + soc_data->measure_temp_mask); > > > > if (!data->irq_enabled) { > > data->irq_enabled = true; > > enable_irq(data->irq); > > } > > } else { > > - regmap_write(map, TEMPSENSE0 + REG_CLR, > > TEMPSENSE0_MEASURE_TEMP); > > - regmap_write(map, TEMPSENSE0 + REG_SET, > > TEMPSENSE0_POWER_DOWN); > > + regmap_write(map, soc_data->sensor_ctrl + REG_CLR, > > + soc_data->measure_temp_mask); > > + regmap_write(map, soc_data->sensor_ctrl + REG_SET, > > + soc_data->power_down_mask); > > > > tz->polling_delay = 0; > > tz->passive_delay = 0; > > @@ -355,6 +498,15 @@ static int imx_init_calib(struct > > platform_device *pdev, > > u32 ocotp_ana1) > > } > > > > /* > > + * On i.MX7D, we only use the calibration data at 25C to > > get the temp, > > + * Tmeas = ( Nmeas - n1) + 25; n1 is the fuse value for > > 25C. > > + */ > > + if (data->socdata->version == TEMPMON_IMX7D) { > > + data->c1 = (ocotp_ana1 >> 9) & 0x1ff; > > + return 0; > > + } > > + > > + /* > > * 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. > > @@ -492,6 +644,7 @@ static irqreturn_t > > imx_thermal_alarm_irq_thread(int > > irq, void *dev) static const struct of_device_id > > of_imx_thermal_match[] = { > > { .compatible = "fsl,imx6q-tempmon", .data = > > &thermal_imx6q_data, }, > > { .compatible = "fsl,imx6sx-tempmon", .data = > > &thermal_imx6sx_data, }, > > + { .compatible = "fsl,imx7d-tempmon", .data = > > &thermal_imx7d_data, }, > > { /* end */ } > > }; > > MODULE_DEVICE_TABLE(of, of_imx_thermal_match); @@ -523,14 +676,15 > > @@ static int imx_thermal_probe(struct platform_device *pdev) > > > > /* make sure the IRQ flag is clear before enabling irq on > > i.MX6SX */ > > if (data->socdata->version == TEMPMON_IMX6SX) { > > - regmap_write(map, MISC1 + REG_CLR, > > MISC1_IRQ_TEMPHIGH | > > - MISC1_IRQ_TEMPLOW | MISC1_IRQ_TEMPPANIC); > > + regmap_write(map, IMX6_MISC1 + REG_CLR, > > + IMX6_MISC1_IRQ_TEMPHIGH | > > IMX6_MISC1_IRQ_TEMPLOW > > + | IMX6_MISC1_IRQ_TEMPPANIC); > > /* > > * reset value of LOW ALARM is incorrect, set it > > to lowest > > * value to avoid false trigger of low alarm. > > */ > > - regmap_write(map, TEMPSENSE2 + REG_SET, > > - TEMPSENSE2_LOW_VALUE_MASK); > > + regmap_write(map, data->socdata->low_alarm_ctrl + > > REG_SET, > > + data->socdata->low_alarm_mask); > > } > > > > data->irq = platform_get_irq(pdev, 0); @@ -557,11 +711,17 > > @@ static int > > imx_thermal_probe(struct platform_device *pdev) > > } > > > > /* Make sure sensor is in known good state for > > measurements */ > > - regmap_write(map, TEMPSENSE0 + REG_CLR, > > TEMPSENSE0_POWER_DOWN); > > - regmap_write(map, TEMPSENSE0 + REG_CLR, > > TEMPSENSE0_MEASURE_TEMP); > > - regmap_write(map, TEMPSENSE1 + REG_CLR, > > TEMPSENSE1_MEASURE_FREQ); > > - regmap_write(map, MISC0 + REG_SET, > > MISC0_REFTOP_SELBIASOFF); > > - regmap_write(map, TEMPSENSE0 + REG_SET, > > TEMPSENSE0_POWER_DOWN); > > + regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, > > + data->socdata->power_down_mask); > > + regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, > > + data->socdata->measure_temp_mask); > > + regmap_write(map, data->socdata->measure_freq_ctrl + > > REG_CLR, > > + data->socdata->measure_freq_mask); > > + if (data->socdata->version != TEMPMON_IMX7D) > > + regmap_write(map, IMX6_MISC0 + REG_SET, > > + IMX6_MISC0_REFTOP_SELBIASOFF); > > + regmap_write(map, data->socdata->sensor_ctrl + REG_SET, > > + data->socdata->power_down_mask); > > > > data->policy = cpufreq_cpu_get(0); > > if (!data->policy) { > > @@ -626,16 +786,20 @@ static int imx_thermal_probe(struct > > platform_device > > *pdev) > > data->temp_passive / 1000); > > > > /* Enable measurements at ~ 10 Hz */ > > - regmap_write(map, TEMPSENSE1 + REG_CLR, > > TEMPSENSE1_MEASURE_FREQ); > > + regmap_write(map, data->socdata->measure_freq_ctrl + > > REG_CLR, > > + data->socdata->measure_freq_mask); > > measure_freq = DIV_ROUND_UP(32768, 10); /* 10 Hz */ > > - regmap_write(map, TEMPSENSE1 + REG_SET, measure_freq); > > + regmap_write(map, data->socdata->measure_freq_ctrl + > > REG_SET, > > + measure_freq << data->socdata- > > >measure_freq_shift); > > imx_set_alarm_temp(data, data->temp_passive); > > > > if (data->socdata->version == TEMPMON_IMX6SX) > > imx_set_panic_temp(data, data->temp_critical); > > > > - regmap_write(map, TEMPSENSE0 + REG_CLR, > > TEMPSENSE0_POWER_DOWN); > > - regmap_write(map, TEMPSENSE0 + REG_SET, > > TEMPSENSE0_MEASURE_TEMP); > > + regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, > > + data->socdata->power_down_mask); > > + regmap_write(map, data->socdata->sensor_ctrl + REG_SET, > > + data->socdata->measure_temp_mask); > > > > ret = devm_request_threaded_irq(&pdev->dev, data->irq, > > imx_thermal_alarm_irq, > > imx_thermal_alarm_irq_thread, @@ > > -661,7 +825,8 @@ static int imx_thermal_remove(struct > > platform_device > > *pdev) > > struct regmap *map = data->tempmon; > > > > /* Disable measurements */ > > - regmap_write(map, TEMPSENSE0 + REG_SET, > > TEMPSENSE0_POWER_DOWN); > > + regmap_write(map, data->socdata->sensor_ctrl + REG_SET, > > + data->socdata->power_down_mask); > > if (!IS_ERR(data->thermal_clk)) > > clk_disable_unprepare(data->thermal_clk); > > > > @@ -684,8 +849,10 @@ static int imx_thermal_suspend(struct device > > *dev) > > * temperature will be read as the thermal sensor is > > powered > > * down. > > */ > > - regmap_write(map, TEMPSENSE0 + REG_CLR, > > TEMPSENSE0_MEASURE_TEMP); > > - regmap_write(map, TEMPSENSE0 + REG_SET, > > TEMPSENSE0_POWER_DOWN); > > + regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, > > + data->socdata->measure_temp_mask); > > + regmap_write(map, data->socdata->sensor_ctrl + REG_SET, > > + data->socdata->power_down_mask); > > data->mode = THERMAL_DEVICE_DISABLED; > > clk_disable_unprepare(data->thermal_clk); > > > > @@ -702,8 +869,10 @@ static int imx_thermal_resume(struct device > > *dev) > > if (ret) > > return ret; > > /* Enabled thermal sensor after resume */ > > - regmap_write(map, TEMPSENSE0 + REG_CLR, > > TEMPSENSE0_POWER_DOWN); > > - regmap_write(map, TEMPSENSE0 + REG_SET, > > TEMPSENSE0_MEASURE_TEMP); > > + regmap_write(map, data->socdata->sensor_ctrl + REG_CLR, > > + data->socdata->power_down_mask); > > + regmap_write(map, data->socdata->sensor_ctrl + REG_SET, > > + data->socdata->measure_temp_mask); > > data->mode = THERMAL_DEVICE_ENABLED; > > > > return 0; > > -- > > 2.7.4 > > > > > > _______________________________________________ > > linux-arm-kernel mailing list > > linux-arm-kernel@lists.infradead.org > > https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fl > > ists.infr > > adead.org%2Fmailman%2Flistinfo%2Flinux-arm- > > kernel&data=02%7C01%7Cans > > on.huang%40nxp.com%7C06aac542a9cb445ee0f308d57fe1cbba%7C686ea1d3 > > bc2b4c6fa92cd99c5c301635%7C0%7C0%7C636555530125162768&sdata=GP4 > > UyKpDXyRkmwSIZY9Sb%2BDxO9sPAWCk0O%2FZPYRA0P4%3D&reserved=0 ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH V6 2/2] thermal: imx: add i.MX7 thermal sensor support 2018-03-13 6:51 ` Zhang Rui @ 2018-03-15 0:51 ` Eduardo Valentin 2018-04-16 8:44 ` Shawn Guo 0 siblings, 1 reply; 7+ messages in thread From: Eduardo Valentin @ 2018-03-15 0:51 UTC (permalink / raw) To: Zhang Rui Cc: Anson Huang, Leonard Crestez, robh+dt, mark.rutland, shawnguo, kernel, Fabio Estevam, linux, linux-arm-kernel, devicetree, dl-linux-imx, linux-kernel, linux-pm On Tue, Mar 13, 2018 at 02:51:05PM +0800, Zhang Rui wrote: > yeah, will review it and get back to you later. This is in my tree now. ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH V6 2/2] thermal: imx: add i.MX7 thermal sensor support 2018-03-15 0:51 ` Eduardo Valentin @ 2018-04-16 8:44 ` Shawn Guo 0 siblings, 0 replies; 7+ messages in thread From: Shawn Guo @ 2018-04-16 8:44 UTC (permalink / raw) To: Eduardo Valentin Cc: Zhang Rui, Anson Huang, Leonard Crestez, robh+dt, mark.rutland, kernel, Fabio Estevam, linux, linux-arm-kernel, devicetree, dl-linux-imx, linux-kernel, linux-pm Hi Eduardo, On Wed, Mar 14, 2018 at 05:51:42PM -0700, Eduardo Valentin wrote: > On Tue, Mar 13, 2018 at 02:51:05PM +0800, Zhang Rui wrote: > > yeah, will review it and get back to you later. > > This is in my tree now. It seems that the patch did not make its way to 4.17-rc1? Shawn ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH V6 1/2] ARM: dts: imx7s: add temperature monitor support 2018-03-02 1:59 [PATCH V6 1/2] ARM: dts: imx7s: add temperature monitor support Anson Huang 2018-03-02 1:59 ` [PATCH V6 2/2] thermal: imx: add i.MX7 thermal sensor support Anson Huang @ 2018-03-08 8:36 ` Shawn Guo 1 sibling, 0 replies; 7+ messages in thread From: Shawn Guo @ 2018-03-08 8:36 UTC (permalink / raw) To: Anson Huang Cc: leonard.crestez, rui.zhang, edubezval, robh+dt, mark.rutland, kernel, fabio.estevam, linux, linux-arm-kernel, devicetree, Linux-imx, linux-kernel, linux-pm On Fri, Mar 02, 2018 at 09:59:29AM +0800, Anson Huang wrote: > Add i.MX7 temperature monitor support. > > Signed-off-by: Anson Huang <Anson.Huang@nxp.com> > Acked-by: Dong Aisheng <aisheng.dong@nxp.com> > Acked-by: Shawn Guo <shawnguo@kernel.org> > Reviewed-by: Rob Herring <robh@kernel.org> Applied this dts patch, thanks. ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2018-04-16 8:45 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2018-03-02 1:59 [PATCH V6 1/2] ARM: dts: imx7s: add temperature monitor support Anson Huang 2018-03-02 1:59 ` [PATCH V6 2/2] thermal: imx: add i.MX7 thermal sensor support Anson Huang 2018-03-13 6:13 ` Anson Huang 2018-03-13 6:51 ` Zhang Rui 2018-03-15 0:51 ` Eduardo Valentin 2018-04-16 8:44 ` Shawn Guo 2018-03-08 8:36 ` [PATCH V6 1/2] ARM: dts: imx7s: add temperature monitor support Shawn Guo
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