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Message-ID: <AM3PR04MB13157BFB099476F807FEB346F5C30@AM3PR04MB1315.eurprd04.prod.outlook.com>
Date: Sat, 24 Feb 2018 01:47:55 +0000
From: Anson Huang <anson.huang@....com>
To: Anson Huang <anson.huang@....com>,
"rui.zhang@...el.com" <rui.zhang@...el.com>,
"edubezval@...il.com" <edubezval@...il.com>,
"robh+dt@...nel.org" <robh+dt@...nel.org>,
"mark.rutland@....com" <mark.rutland@....com>,
"shawnguo@...nel.org" <shawnguo@...nel.org>,
"kernel@...gutronix.de" <kernel@...gutronix.de>,
Fabio Estevam <fabio.estevam@....com>,
"linux@...linux.org.uk" <linux@...linux.org.uk>
CC: "linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
dl-linux-imx <linux-imx@....com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>
Subject: RE: [PATCH V3 2/2] thermal: imx: add i.MX7 thermal sensor support
Ping...
Anson Huang
Best Regards!
> -----Original Message-----
> From: linux-arm-kernel [mailto:linux-arm-kernel-bounces@...ts.infradead.org]
> On Behalf Of Anson Huang
> Sent: Monday, February 5, 2018 4:12 PM
> To: rui.zhang@...el.com; edubezval@...il.com; robh+dt@...nel.org;
> mark.rutland@....com; shawnguo@...nel.org; kernel@...gutronix.de;
> Fabio Estevam <fabio.estevam@....com>; linux@...linux.org.uk
> Cc: linux-arm-kernel@...ts.infradead.org; devicetree@...r.kernel.org;
> dl-linux-imx <linux-imx@....com>; linux-kernel@...r.kernel.org;
> linux-pm@...r.kernel.org
> Subject: [PATCH V3 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@....com>
> Signed-off-by: Bai Ping <ping.bai@....com>
> ---
> changes since V2:
> Add bindind doc changes in this patch according to review comments.
> .../devicetree/bindings/thermal/imx-thermal.txt | 9 +-
> drivers/thermal/imx_thermal.c | 314
> ++++++++++++++++-----
> 2 files changed, 254 insertions(+), 69 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/thermal/imx-thermal.txt
> b/Documentation/devicetree/bindings/thermal/imx-thermal.txt
> index 28be51a..79f97bc 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,imx7-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 e7d4ffc..c95fa82 100644
> --- a/drivers/thermal/imx_thermal.c
> +++ b/drivers/thermal/imx_thermal.c
> @@ -31,34 +31,58 @@
> #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
> +
> +#define IMX6_OCOTP_MEM0 0x0480
> +#define IMX6_OCOTP_ANA1 0x04e0
> +#define IMX7_OCOTP_TESTER3 0x0440
> +#define IMX7_OCOTP_ANA1 0x04f0
>
> /* The driver supports 1 passive trip point and 1 critical trip point */ enum
> imx_thermal_trip { @@ -76,17 +100,114 @@ enum imx_thermal_trip {
>
> #define TEMPMON_IMX6Q 1
> #define TEMPMON_IMX6SX 2
> +#define TEMPMON_IMX7 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_imx7_data = {
> + .version = TEMPMON_IMX7,
> +
> + .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 {
> @@ -112,30 +233,41 @@ static void imx_set_panic_temp(struct
> imx_thermal_data *data,
> int panic_temp)
> {
> struct regmap *map = data->tempmon;
> + const struct thermal_soc_data *soc_data = data->socdata;
> 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_IMX7)
> + 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;
> @@ -143,16 +275,18 @@ 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;
> }
> @@ -164,22 +298,28 @@ 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_IMX7)
> + *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) { @@ -223,21 +363,26
> @@ 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;
> @@ -359,6 +504,15 @@ static int imx_init_calib(struct platform_device *pdev,
> u32 val)
> }
>
> /*
> + * On i.MX7, 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_IMX7) {
> + data->c1 = (val >> 9) & 0x1ff;
> + return 0;
> + }
> +
> + /*
> * Sensor data layout:
> * [31:20] - sensor value @ 25C
> * Use universal formula now and only need sensor value @ 25C @@
> -426,6 +580,7 @@ static void imx_init_temp_grade(struct platform_device
> *pdev, u32 val)
>
> static int imx_init_from_tempmon_data(struct platform_device *pdev) {
> + const struct imx_thermal_data *data = platform_get_drvdata(pdev);
> struct regmap *map;
> int ret;
> u32 val;
> @@ -438,7 +593,11 @@ static int imx_init_from_tempmon_data(struct
> platform_device *pdev)
> return ret;
> }
>
> - ret = regmap_read(map, OCOTP_ANA1, &val);
> + if (data->socdata->version == TEMPMON_IMX7)
> + ret = regmap_read(map, IMX7_OCOTP_ANA1, &val);
> + else
> + ret = regmap_read(map, IMX6_OCOTP_ANA1, &val);
> +
> if (ret) {
> dev_err(&pdev->dev, "failed to read sensor data: %d\n", ret);
> return ret;
> @@ -447,7 +606,11 @@ static int imx_init_from_tempmon_data(struct
> platform_device *pdev)
> if (ret)
> return ret;
>
> - ret = regmap_read(map, OCOTP_MEM0, &val);
> + /* use OTP for thermal grade */
> + if (data->socdata->version == TEMPMON_IMX7)
> + ret = regmap_read(map, IMX7_OCOTP_TESTER3, &val);
> + else
> + ret = regmap_read(map, IMX6_OCOTP_MEM0, &val);
> if (ret) {
> dev_err(&pdev->dev, "failed to read sensor data: %d\n", ret);
> return ret;
> @@ -500,6 +663,7 @@ 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,imx7-tempmon", .data = &thermal_imx7_data, },
> { /* end */ }
> };
> MODULE_DEVICE_TABLE(of, of_imx_thermal_match); @@ -531,14 +695,15
> @@ 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); @@ -565,11 +730,17 @@ 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_IMX7)
> + 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) {
> @@ -634,16 +805,20 @@ 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, @@
> -669,7 +844,8 @@ 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);
>
> @@ -692,8 +868,10 @@ 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);
>
> @@ -710,8 +888,10 @@ 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
>
>
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