2017-07-13 12:10:03

by Kiran Gunda

[permalink] [raw]
Subject: [PATCH V1] thermal: qcom-spmi-temp-alarm: add support for GEN2 PMIC peripherals

From: David Collins <[email protected]>

Add support for the TEMP_ALARM GEN2 PMIC peripheral subtype. The
GEN2 subtype defines an over temperature state with hysteresis
instead of stage in the status register. There are two GEN2
states corresponding to stages 1 and 2.

Signed-off-by: David Collins <[email protected]>
Signed-off-by: Kiran Gunda <[email protected]>
---
drivers/thermal/qcom-spmi-temp-alarm.c | 92 ++++++++++++++++++++++++++--------
1 file changed, 71 insertions(+), 21 deletions(-)

diff --git a/drivers/thermal/qcom-spmi-temp-alarm.c b/drivers/thermal/qcom-spmi-temp-alarm.c
index f502419..a5e17ba 100644
--- a/drivers/thermal/qcom-spmi-temp-alarm.c
+++ b/drivers/thermal/qcom-spmi-temp-alarm.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2011-2015, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2011-2015, 2017, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -11,6 +11,7 @@
* GNU General Public License for more details.
*/

+#include <linux/bitops.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/iio/consumer.h>
@@ -29,13 +30,17 @@
#define QPNP_TM_REG_ALARM_CTRL 0x46

#define QPNP_TM_TYPE 0x09
-#define QPNP_TM_SUBTYPE 0x08
+#define QPNP_TM_SUBTYPE_GEN1 0x08
+#define QPNP_TM_SUBTYPE_GEN2 0x09

-#define STATUS_STAGE_MASK 0x03
+#define STATUS_GEN1_STAGE_MASK GENMASK(1, 0)
+#define STATUS_GEN2_STATE_MASK GENMASK(6, 4)
+#define STATUS_GEN2_STATE_SHIFT 4

-#define SHUTDOWN_CTRL1_THRESHOLD_MASK 0x03
+#define SHUTDOWN_CTRL1_OVERRIDE_MASK GENMASK(7, 6)
+#define SHUTDOWN_CTRL1_THRESHOLD_MASK GENMASK(1, 0)

-#define ALARM_CTRL_FORCE_ENABLE 0x80
+#define ALARM_CTRL_FORCE_ENABLE BIT(7)

/*
* Trip point values based on threshold control
@@ -58,6 +63,7 @@
struct qpnp_tm_chip {
struct regmap *map;
struct thermal_zone_device *tz_dev;
+ unsigned int subtype;
long temp;
unsigned int thresh;
unsigned int stage;
@@ -66,6 +72,9 @@ struct qpnp_tm_chip {
struct iio_channel *adc;
};

+/* This array maps from GEN2 alarm state to GEN1 alarm stage */
+static const unsigned int alarm_state_map[8] = {0, 1, 1, 2, 2, 3, 3, 3};
+
static int qpnp_tm_read(struct qpnp_tm_chip *chip, u16 addr, u8 *data)
{
unsigned int val;
@@ -84,30 +93,59 @@ static int qpnp_tm_write(struct qpnp_tm_chip *chip, u16 addr, u8 data)
return regmap_write(chip->map, chip->base + addr, data);
}

+/**
+ * qpnp_tm_get_temp_stage() - return over-temperature stage
+ * @chip: Pointer to the qpnp_tm chip
+ *
+ * Return: stage (GEN1) or state (GEN2) on success, or errno on failure.
+ */
+static int qpnp_tm_get_temp_stage(struct qpnp_tm_chip *chip)
+{
+ int ret;
+ u8 reg = 0;
+
+ ret = qpnp_tm_read(chip, QPNP_TM_REG_STATUS, &reg);
+ if (ret < 0)
+ return ret;
+
+ if (chip->subtype == QPNP_TM_SUBTYPE_GEN1)
+ ret = reg & STATUS_GEN1_STAGE_MASK;
+ else
+ ret = (reg & STATUS_GEN2_STATE_MASK) >> STATUS_GEN2_STATE_SHIFT;
+
+ return ret;
+}
+
/*
* This function updates the internal temp value based on the
* current thermal stage and threshold as well as the previous stage
*/
static int qpnp_tm_update_temp_no_adc(struct qpnp_tm_chip *chip)
{
- unsigned int stage;
+ unsigned int stage, stage_new, stage_old;
int ret;
- u8 reg = 0;

- ret = qpnp_tm_read(chip, QPNP_TM_REG_STATUS, &reg);
+ ret = qpnp_tm_get_temp_stage(chip);
if (ret < 0)
return ret;
+ stage = ret;

- stage = reg & STATUS_STAGE_MASK;
+ if (chip->subtype == QPNP_TM_SUBTYPE_GEN1) {
+ stage_new = stage;
+ stage_old = chip->stage;
+ } else {
+ stage_new = alarm_state_map[stage];
+ stage_old = alarm_state_map[chip->stage];
+ }

- if (stage > chip->stage) {
+ if (stage_new > stage_old) {
/* increasing stage, use lower bound */
- chip->temp = (stage - 1) * TEMP_STAGE_STEP +
+ chip->temp = (stage_new - 1) * TEMP_STAGE_STEP +
chip->thresh * TEMP_THRESH_STEP +
TEMP_STAGE_HYSTERESIS + TEMP_THRESH_MIN;
- } else if (stage < chip->stage) {
+ } else if (stage_new < stage_old) {
/* decreasing stage, use upper bound */
- chip->temp = stage * TEMP_STAGE_STEP +
+ chip->temp = stage_new * TEMP_STAGE_STEP +
chip->thresh * TEMP_THRESH_STEP -
TEMP_STAGE_HYSTERESIS + TEMP_THRESH_MIN;
}
@@ -162,28 +200,37 @@ static irqreturn_t qpnp_tm_isr(int irq, void *data)
*/
static int qpnp_tm_init(struct qpnp_tm_chip *chip)
{
+ unsigned int stage;
int ret;
- u8 reg;
+ u8 reg = 0;

- chip->thresh = THRESH_MIN;
+ ret = qpnp_tm_read(chip, QPNP_TM_REG_SHUTDOWN_CTRL1, &reg);
+ if (ret < 0)
+ return ret;
+
+ chip->thresh = reg & SHUTDOWN_CTRL1_THRESHOLD_MASK;
chip->temp = DEFAULT_TEMP;

- ret = qpnp_tm_read(chip, QPNP_TM_REG_STATUS, &reg);
+ ret = qpnp_tm_get_temp_stage(chip);
if (ret < 0)
return ret;
+ chip->stage = ret;

- chip->stage = reg & STATUS_STAGE_MASK;
+ stage = chip->subtype == QPNP_TM_SUBTYPE_GEN1
+ ? chip->stage : alarm_state_map[chip->stage];

- if (chip->stage)
+ if (stage)
chip->temp = chip->thresh * TEMP_THRESH_STEP +
- (chip->stage - 1) * TEMP_STAGE_STEP +
+ (stage - 1) * TEMP_STAGE_STEP +
TEMP_THRESH_MIN;

/*
* Set threshold and disable software override of stage 2 and 3
* shutdowns.
*/
- reg = chip->thresh & SHUTDOWN_CTRL1_THRESHOLD_MASK;
+ chip->thresh = THRESH_MIN;
+ reg &= ~(SHUTDOWN_CTRL1_OVERRIDE_MASK | SHUTDOWN_CTRL1_THRESHOLD_MASK);
+ reg |= chip->thresh & SHUTDOWN_CTRL1_THRESHOLD_MASK;
ret = qpnp_tm_write(chip, QPNP_TM_REG_SHUTDOWN_CTRL1, reg);
if (ret < 0)
return ret;
@@ -242,13 +289,16 @@ static int qpnp_tm_probe(struct platform_device *pdev)
goto fail;
}

- if (type != QPNP_TM_TYPE || subtype != QPNP_TM_SUBTYPE) {
+ if (type != QPNP_TM_TYPE || (subtype != QPNP_TM_SUBTYPE_GEN1
+ && subtype != QPNP_TM_SUBTYPE_GEN2)) {
dev_err(&pdev->dev, "invalid type 0x%02x or subtype 0x%02x\n",
type, subtype);
ret = -ENODEV;
goto fail;
}

+ chip->subtype = subtype;
+
ret = qpnp_tm_init(chip);
if (ret < 0) {
dev_err(&pdev->dev, "init failed\n");
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


2017-08-08 08:12:31

by Zhang, Rui

[permalink] [raw]
Subject: Re: [PATCH V1] thermal: qcom-spmi-temp-alarm: add support for GEN2 PMIC peripherals

On Thu, 2017-07-13 at 17:39 +0530, Kiran Gunda wrote:
> From: David Collins <[email protected]>
>
> Add support for the TEMP_ALARM GEN2 PMIC peripheral subtype.  The
> GEN2 subtype defines an over temperature state with hysteresis
> instead of stage in the status register.  There are two GEN2
> states corresponding to stages 1 and 2.
>
> Signed-off-by: David Collins <[email protected]>
> Signed-off-by: Kiran Gunda <[email protected]>

Ivan,

can you please review this patch and let me know your opinion?

thanks,
rui
> ---
>  drivers/thermal/qcom-spmi-temp-alarm.c | 92
> ++++++++++++++++++++++++++--------
>  1 file changed, 71 insertions(+), 21 deletions(-)
>
> diff --git a/drivers/thermal/qcom-spmi-temp-alarm.c
> b/drivers/thermal/qcom-spmi-temp-alarm.c
> index f502419..a5e17ba 100644
> --- a/drivers/thermal/qcom-spmi-temp-alarm.c
> +++ b/drivers/thermal/qcom-spmi-temp-alarm.c
> @@ -1,5 +1,5 @@
>  /*
> - * Copyright (c) 2011-2015, The Linux Foundation. All rights
> reserved.
> + * Copyright (c) 2011-2015, 2017, The Linux Foundation. All rights
> reserved.
>   *
>   * This program is free software; you can redistribute it and/or
> modify
>   * it under the terms of the GNU General Public License version 2
> and
> @@ -11,6 +11,7 @@
>   * GNU General Public License for more details.
>   */
>  
> +#include <linux/bitops.h>
>  #include <linux/delay.h>
>  #include <linux/err.h>
>  #include <linux/iio/consumer.h>
> @@ -29,13 +30,17 @@
>  #define QPNP_TM_REG_ALARM_CTRL 0x46
>  
>  #define QPNP_TM_TYPE 0x09
> -#define QPNP_TM_SUBTYPE 0x08
> +#define QPNP_TM_SUBTYPE_GEN1 0x08
> +#define QPNP_TM_SUBTYPE_GEN2 0x09
>  
> -#define STATUS_STAGE_MASK 0x03
> +#define STATUS_GEN1_STAGE_MASK GENMASK(1, 0)
> +#define STATUS_GEN2_STATE_MASK GENMASK(6, 4)
> +#define STATUS_GEN2_STATE_SHIFT 4
>  
> -#define SHUTDOWN_CTRL1_THRESHOLD_MASK 0x03
> +#define SHUTDOWN_CTRL1_OVERRIDE_MASK GENMASK(7, 6)
> +#define SHUTDOWN_CTRL1_THRESHOLD_MASK GENMASK(1, 0)
>  
> -#define ALARM_CTRL_FORCE_ENABLE 0x80
> +#define ALARM_CTRL_FORCE_ENABLE BIT(7)
>  
>  /*
>   * Trip point values based on threshold control
> @@ -58,6 +63,7 @@
>  struct qpnp_tm_chip {
>   struct regmap *map;
>   struct thermal_zone_device *tz_dev;
> + unsigned int subtype;
>   long temp;
>   unsigned int thresh;
>   unsigned int stage;
> @@ -66,6 +72,9 @@ struct qpnp_tm_chip {
>   struct iio_channel *adc;
>  };
>  
> +/* This array maps from GEN2 alarm state to GEN1 alarm stage */
> +static const unsigned int alarm_state_map[8] = {0, 1, 1, 2, 2, 3, 3,
> 3};
> +
>  static int qpnp_tm_read(struct qpnp_tm_chip *chip, u16 addr, u8
> *data)
>  {
>   unsigned int val;
> @@ -84,30 +93,59 @@ static int qpnp_tm_write(struct qpnp_tm_chip
> *chip, u16 addr, u8 data)
>   return regmap_write(chip->map, chip->base + addr, data);
>  }
>  
> +/**
> + * qpnp_tm_get_temp_stage() - return over-temperature stage
> + * @chip: Pointer to the qpnp_tm chip
> + *
> + * Return: stage (GEN1) or state (GEN2) on success, or errno on
> failure.
> + */
> +static int qpnp_tm_get_temp_stage(struct qpnp_tm_chip *chip)
> +{
> + int ret;
> + u8 reg = 0;
> +
> + ret = qpnp_tm_read(chip, QPNP_TM_REG_STATUS, &reg);
> + if (ret < 0)
> + return ret;
> +
> + if (chip->subtype == QPNP_TM_SUBTYPE_GEN1)
> + ret = reg & STATUS_GEN1_STAGE_MASK;
> + else
> + ret = (reg & STATUS_GEN2_STATE_MASK) >>
> STATUS_GEN2_STATE_SHIFT;
> +
> + return ret;
> +}
> +
>  /*
>   * This function updates the internal temp value based on the
>   * current thermal stage and threshold as well as the previous stage
>   */
>  static int qpnp_tm_update_temp_no_adc(struct qpnp_tm_chip *chip)
>  {
> - unsigned int stage;
> + unsigned int stage, stage_new, stage_old;
>   int ret;
> - u8 reg = 0;
>  
> - ret = qpnp_tm_read(chip, QPNP_TM_REG_STATUS, &reg);
> + ret = qpnp_tm_get_temp_stage(chip);
>   if (ret < 0)
>   return ret;
> + stage = ret;
>  
> - stage = reg & STATUS_STAGE_MASK;
> + if (chip->subtype == QPNP_TM_SUBTYPE_GEN1) {
> + stage_new = stage;
> + stage_old = chip->stage;
> + } else {
> + stage_new = alarm_state_map[stage];
> + stage_old = alarm_state_map[chip->stage];
> + }
>  
> - if (stage > chip->stage) {
> + if (stage_new > stage_old) {
>   /* increasing stage, use lower bound */
> - chip->temp = (stage - 1) * TEMP_STAGE_STEP +
> + chip->temp = (stage_new - 1) * TEMP_STAGE_STEP +
>        chip->thresh * TEMP_THRESH_STEP +
>        TEMP_STAGE_HYSTERESIS +
> TEMP_THRESH_MIN;
> - } else if (stage < chip->stage) {
> + } else if (stage_new < stage_old) {
>   /* decreasing stage, use upper bound */
> - chip->temp = stage * TEMP_STAGE_STEP +
> + chip->temp = stage_new * TEMP_STAGE_STEP +
>        chip->thresh * TEMP_THRESH_STEP -
>        TEMP_STAGE_HYSTERESIS +
> TEMP_THRESH_MIN;
>   }
> @@ -162,28 +200,37 @@ static irqreturn_t qpnp_tm_isr(int irq, void
> *data)
>   */
>  static int qpnp_tm_init(struct qpnp_tm_chip *chip)
>  {
> + unsigned int stage;
>   int ret;
> - u8 reg;
> + u8 reg = 0;
>  
> - chip->thresh = THRESH_MIN;
> + ret = qpnp_tm_read(chip, QPNP_TM_REG_SHUTDOWN_CTRL1, &reg);
> + if (ret < 0)
> + return ret;
> +
> + chip->thresh = reg & SHUTDOWN_CTRL1_THRESHOLD_MASK;
>   chip->temp = DEFAULT_TEMP;
>  
> - ret = qpnp_tm_read(chip, QPNP_TM_REG_STATUS, &reg);
> + ret = qpnp_tm_get_temp_stage(chip);
>   if (ret < 0)
>   return ret;
> + chip->stage = ret;
>  
> - chip->stage = reg & STATUS_STAGE_MASK;
> + stage = chip->subtype == QPNP_TM_SUBTYPE_GEN1
> + ? chip->stage : alarm_state_map[chip->stage];
>  
> - if (chip->stage)
> + if (stage)
>   chip->temp = chip->thresh * TEMP_THRESH_STEP +
> -      (chip->stage - 1) * TEMP_STAGE_STEP +
> +      (stage - 1) * TEMP_STAGE_STEP +
>        TEMP_THRESH_MIN;
>  
>   /*
>    * Set threshold and disable software override of stage 2
> and 3
>    * shutdowns.
>    */
> - reg = chip->thresh & SHUTDOWN_CTRL1_THRESHOLD_MASK;
> + chip->thresh = THRESH_MIN;
> + reg &= ~(SHUTDOWN_CTRL1_OVERRIDE_MASK |
> SHUTDOWN_CTRL1_THRESHOLD_MASK);
> + reg |= chip->thresh & SHUTDOWN_CTRL1_THRESHOLD_MASK;
>   ret = qpnp_tm_write(chip, QPNP_TM_REG_SHUTDOWN_CTRL1, reg);
>   if (ret < 0)
>   return ret;
> @@ -242,13 +289,16 @@ static int qpnp_tm_probe(struct platform_device
> *pdev)
>   goto fail;
>   }
>  
> - if (type != QPNP_TM_TYPE || subtype != QPNP_TM_SUBTYPE) {
> + if (type != QPNP_TM_TYPE || (subtype != QPNP_TM_SUBTYPE_GEN1
> +      && subtype !=
> QPNP_TM_SUBTYPE_GEN2)) {
>   dev_err(&pdev->dev, "invalid type 0x%02x or subtype
> 0x%02x\n",
>   type, subtype);
>   ret = -ENODEV;
>   goto fail;
>   }
>  
> + chip->subtype = subtype;
> +
>   ret = qpnp_tm_init(chip);
>   if (ret < 0) {
>   dev_err(&pdev->dev, "init failed\n");

2017-08-16 12:23:20

by Kiran Gunda

[permalink] [raw]
Subject: Re: [PATCH V1] thermal: qcom-spmi-temp-alarm: add support for GEN2 PMIC peripherals

On 2017-08-08 13:42, Zhang Rui wrote:
> On Thu, 2017-07-13 at 17:39 +0530, Kiran Gunda wrote:
>> From: David Collins <[email protected]>
>>
>> Add support for the TEMP_ALARM GEN2 PMIC peripheral subtype.  The
>> GEN2 subtype defines an over temperature state with hysteresis
>> instead of stage in the status register.  There are two GEN2
>> states corresponding to stages 1 and 2.
>>
>> Signed-off-by: David Collins <[email protected]>
>> Signed-off-by: Kiran Gunda <[email protected]>
>
> Ivan,
>
> can you please review this patch and let me know your opinion?
>
> thanks,
> rui

Ivan,
Could you please review this patch ?

Thanks,
Kiran
>> ---
>>  drivers/thermal/qcom-spmi-temp-alarm.c | 92
>> ++++++++++++++++++++++++++--------
>>  1 file changed, 71 insertions(+), 21 deletions(-)
>>
>> diff --git a/drivers/thermal/qcom-spmi-temp-alarm.c
>> b/drivers/thermal/qcom-spmi-temp-alarm.c
>> index f502419..a5e17ba 100644
>> --- a/drivers/thermal/qcom-spmi-temp-alarm.c
>> +++ b/drivers/thermal/qcom-spmi-temp-alarm.c
>> @@ -1,5 +1,5 @@
>>  /*
>> - * Copyright (c) 2011-2015, The Linux Foundation. All rights
>> reserved.
>> + * Copyright (c) 2011-2015, 2017, The Linux Foundation. All rights
>> reserved.
>>   *
>>   * This program is free software; you can redistribute it and/or
>> modify
>>   * it under the terms of the GNU General Public License version 2
>> and
>> @@ -11,6 +11,7 @@
>>   * GNU General Public License for more details.
>>   */
>>  
>> +#include <linux/bitops.h>
>>  #include <linux/delay.h>
>>  #include <linux/err.h>
>>  #include <linux/iio/consumer.h>
>> @@ -29,13 +30,17 @@
>>  #define QPNP_TM_REG_ALARM_CTRL 0x46
>>  
>>  #define QPNP_TM_TYPE 0x09
>> -#define QPNP_TM_SUBTYPE 0x08
>> +#define QPNP_TM_SUBTYPE_GEN1 0x08
>> +#define QPNP_TM_SUBTYPE_GEN2 0x09
>>  
>> -#define STATUS_STAGE_MASK 0x03
>> +#define STATUS_GEN1_STAGE_MASK GENMASK(1, 0)
>> +#define STATUS_GEN2_STATE_MASK GENMASK(6, 4)
>> +#define STATUS_GEN2_STATE_SHIFT 4
>>  
>> -#define SHUTDOWN_CTRL1_THRESHOLD_MASK 0x03
>> +#define SHUTDOWN_CTRL1_OVERRIDE_MASK GENMASK(7, 6)
>> +#define SHUTDOWN_CTRL1_THRESHOLD_MASK GENMASK(1, 0)
>>  
>> -#define ALARM_CTRL_FORCE_ENABLE 0x80
>> +#define ALARM_CTRL_FORCE_ENABLE BIT(7)
>>  
>>  /*
>>   * Trip point values based on threshold control
>> @@ -58,6 +63,7 @@
>>  struct qpnp_tm_chip {
>>   struct regmap *map;
>>   struct thermal_zone_device *tz_dev;
>> + unsigned int subtype;
>>   long temp;
>>   unsigned int thresh;
>>   unsigned int stage;
>> @@ -66,6 +72,9 @@ struct qpnp_tm_chip {
>>   struct iio_channel *adc;
>>  };
>>  
>> +/* This array maps from GEN2 alarm state to GEN1 alarm stage */
>> +static const unsigned int alarm_state_map[8] = {0, 1, 1, 2, 2, 3, 3,
>> 3};
>> +
>>  static int qpnp_tm_read(struct qpnp_tm_chip *chip, u16 addr, u8
>> *data)
>>  {
>>   unsigned int val;
>> @@ -84,30 +93,59 @@ static int qpnp_tm_write(struct qpnp_tm_chip
>> *chip, u16 addr, u8 data)
>>   return regmap_write(chip->map, chip->base + addr, data);
>>  }
>>  
>> +/**
>> + * qpnp_tm_get_temp_stage() - return over-temperature stage
>> + * @chip: Pointer to the qpnp_tm chip
>> + *
>> + * Return: stage (GEN1) or state (GEN2) on success, or errno on
>> failure.
>> + */
>> +static int qpnp_tm_get_temp_stage(struct qpnp_tm_chip *chip)
>> +{
>> + int ret;
>> + u8 reg = 0;
>> +
>> + ret = qpnp_tm_read(chip, QPNP_TM_REG_STATUS, &reg);
>> + if (ret < 0)
>> + return ret;
>> +
>> + if (chip->subtype == QPNP_TM_SUBTYPE_GEN1)
>> + ret = reg & STATUS_GEN1_STAGE_MASK;
>> + else
>> + ret = (reg & STATUS_GEN2_STATE_MASK) >>
>> STATUS_GEN2_STATE_SHIFT;
>> +
>> + return ret;
>> +}
>> +
>>  /*
>>   * This function updates the internal temp value based on the
>>   * current thermal stage and threshold as well as the previous stage
>>   */
>>  static int qpnp_tm_update_temp_no_adc(struct qpnp_tm_chip *chip)
>>  {
>> - unsigned int stage;
>> + unsigned int stage, stage_new, stage_old;
>>   int ret;
>> - u8 reg = 0;
>>  
>> - ret = qpnp_tm_read(chip, QPNP_TM_REG_STATUS, &reg);
>> + ret = qpnp_tm_get_temp_stage(chip);
>>   if (ret < 0)
>>   return ret;
>> + stage = ret;
>>  
>> - stage = reg & STATUS_STAGE_MASK;
>> + if (chip->subtype == QPNP_TM_SUBTYPE_GEN1) {
>> + stage_new = stage;
>> + stage_old = chip->stage;
>> + } else {
>> + stage_new = alarm_state_map[stage];
>> + stage_old = alarm_state_map[chip->stage];
>> + }
>>  
>> - if (stage > chip->stage) {
>> + if (stage_new > stage_old) {
>>   /* increasing stage, use lower bound */
>> - chip->temp = (stage - 1) * TEMP_STAGE_STEP +
>> + chip->temp = (stage_new - 1) * TEMP_STAGE_STEP +
>>        chip->thresh * TEMP_THRESH_STEP +
>>        TEMP_STAGE_HYSTERESIS +
>> TEMP_THRESH_MIN;
>> - } else if (stage < chip->stage) {
>> + } else if (stage_new < stage_old) {
>>   /* decreasing stage, use upper bound */
>> - chip->temp = stage * TEMP_STAGE_STEP +
>> + chip->temp = stage_new * TEMP_STAGE_STEP +
>>        chip->thresh * TEMP_THRESH_STEP -
>>        TEMP_STAGE_HYSTERESIS +
>> TEMP_THRESH_MIN;
>>   }
>> @@ -162,28 +200,37 @@ static irqreturn_t qpnp_tm_isr(int irq, void
>> *data)
>>   */
>>  static int qpnp_tm_init(struct qpnp_tm_chip *chip)
>>  {
>> + unsigned int stage;
>>   int ret;
>> - u8 reg;
>> + u8 reg = 0;
>>  
>> - chip->thresh = THRESH_MIN;
>> + ret = qpnp_tm_read(chip, QPNP_TM_REG_SHUTDOWN_CTRL1, &reg);
>> + if (ret < 0)
>> + return ret;
>> +
>> + chip->thresh = reg & SHUTDOWN_CTRL1_THRESHOLD_MASK;
>>   chip->temp = DEFAULT_TEMP;
>>  
>> - ret = qpnp_tm_read(chip, QPNP_TM_REG_STATUS, &reg);
>> + ret = qpnp_tm_get_temp_stage(chip);
>>   if (ret < 0)
>>   return ret;
>> + chip->stage = ret;
>>  
>> - chip->stage = reg & STATUS_STAGE_MASK;
>> + stage = chip->subtype == QPNP_TM_SUBTYPE_GEN1
>> + ? chip->stage : alarm_state_map[chip->stage];
>>  
>> - if (chip->stage)
>> + if (stage)
>>   chip->temp = chip->thresh * TEMP_THRESH_STEP +
>> -      (chip->stage - 1) * TEMP_STAGE_STEP +
>> +      (stage - 1) * TEMP_STAGE_STEP +
>>        TEMP_THRESH_MIN;
>>  
>>   /*
>>    * Set threshold and disable software override of stage 2
>> and 3
>>    * shutdowns.
>>    */
>> - reg = chip->thresh & SHUTDOWN_CTRL1_THRESHOLD_MASK;
>> + chip->thresh = THRESH_MIN;
>> + reg &= ~(SHUTDOWN_CTRL1_OVERRIDE_MASK |
>> SHUTDOWN_CTRL1_THRESHOLD_MASK);
>> + reg |= chip->thresh & SHUTDOWN_CTRL1_THRESHOLD_MASK;
>>   ret = qpnp_tm_write(chip, QPNP_TM_REG_SHUTDOWN_CTRL1, reg);
>>   if (ret < 0)
>>   return ret;
>> @@ -242,13 +289,16 @@ static int qpnp_tm_probe(struct platform_device
>> *pdev)
>>   goto fail;
>>   }
>>  
>> - if (type != QPNP_TM_TYPE || subtype != QPNP_TM_SUBTYPE) {
>> + if (type != QPNP_TM_TYPE || (subtype != QPNP_TM_SUBTYPE_GEN1
>> +      && subtype !=
>> QPNP_TM_SUBTYPE_GEN2)) {
>>   dev_err(&pdev->dev, "invalid type 0x%02x or subtype
>> 0x%02x\n",
>>   type, subtype);
>>   ret = -ENODEV;
>>   goto fail;
>>   }
>>  
>> + chip->subtype = subtype;
>> +
>>   ret = qpnp_tm_init(chip);
>>   if (ret < 0) {
>>   dev_err(&pdev->dev, "init failed\n");
> --
> To unsubscribe from this list: send the line "unsubscribe
> linux-arm-msm" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html

2017-08-17 07:42:04

by Kiran Gunda

[permalink] [raw]
Subject: Re: [PATCH V1] thermal: qcom-spmi-temp-alarm: add support for GEN2 PMIC peripherals

On 2017-08-16 17:53, [email protected] wrote:
> On 2017-08-08 13:42, Zhang Rui wrote:
>> On Thu, 2017-07-13 at 17:39 +0530, Kiran Gunda wrote:
>>> From: David Collins <[email protected]>
>>>
>>> Add support for the TEMP_ALARM GEN2 PMIC peripheral subtype.  The
>>> GEN2 subtype defines an over temperature state with hysteresis
>>> instead of stage in the status register.  There are two GEN2
>>> states corresponding to stages 1 and 2.
>>>
>>> Signed-off-by: David Collins <[email protected]>
>>> Signed-off-by: Kiran Gunda <[email protected]>
>>
>> Ivan,
>>
>> can you please review this patch and let me know your opinion?
>>
>> thanks,
>> rui
>
> Ivan,
> Could you please review this patch ?
>
> Thanks,
> Kiran

Looks like Ivan is no more reviewing the patches for qcom.
Adding Bjorn and Stephen Boyd for the review.

Thanks,
Kiran
>>> ---
>>>  drivers/thermal/qcom-spmi-temp-alarm.c | 92
>>> ++++++++++++++++++++++++++--------
>>>  1 file changed, 71 insertions(+), 21 deletions(-)
>>>
>>> diff --git a/drivers/thermal/qcom-spmi-temp-alarm.c
>>> b/drivers/thermal/qcom-spmi-temp-alarm.c
>>> index f502419..a5e17ba 100644
>>> --- a/drivers/thermal/qcom-spmi-temp-alarm.c
>>> +++ b/drivers/thermal/qcom-spmi-temp-alarm.c
>>> @@ -1,5 +1,5 @@
>>>  /*
>>> - * Copyright (c) 2011-2015, The Linux Foundation. All rights
>>> reserved.
>>> + * Copyright (c) 2011-2015, 2017, The Linux Foundation. All rights
>>> reserved.
>>>   *
>>>   * This program is free software; you can redistribute it and/or
>>> modify
>>>   * it under the terms of the GNU General Public License version 2
>>> and
>>> @@ -11,6 +11,7 @@
>>>   * GNU General Public License for more details.
>>>   */
>>>  
>>> +#include <linux/bitops.h>
>>>  #include <linux/delay.h>
>>>  #include <linux/err.h>
>>>  #include <linux/iio/consumer.h>
>>> @@ -29,13 +30,17 @@
>>>  #define QPNP_TM_REG_ALARM_CTRL 0x46
>>>  
>>>  #define QPNP_TM_TYPE 0x09
>>> -#define QPNP_TM_SUBTYPE 0x08
>>> +#define QPNP_TM_SUBTYPE_GEN1 0x08
>>> +#define QPNP_TM_SUBTYPE_GEN2 0x09
>>>  
>>> -#define STATUS_STAGE_MASK 0x03
>>> +#define STATUS_GEN1_STAGE_MASK GENMASK(1, 0)
>>> +#define STATUS_GEN2_STATE_MASK GENMASK(6, 4)
>>> +#define STATUS_GEN2_STATE_SHIFT 4
>>>  
>>> -#define SHUTDOWN_CTRL1_THRESHOLD_MASK 0x03
>>> +#define SHUTDOWN_CTRL1_OVERRIDE_MASK GENMASK(7, 6)
>>> +#define SHUTDOWN_CTRL1_THRESHOLD_MASK GENMASK(1, 0)
>>>  
>>> -#define ALARM_CTRL_FORCE_ENABLE 0x80
>>> +#define ALARM_CTRL_FORCE_ENABLE BIT(7)
>>>  
>>>  /*
>>>   * Trip point values based on threshold control
>>> @@ -58,6 +63,7 @@
>>>  struct qpnp_tm_chip {
>>>   struct regmap *map;
>>>   struct thermal_zone_device *tz_dev;
>>> + unsigned int subtype;
>>>   long temp;
>>>   unsigned int thresh;
>>>   unsigned int stage;
>>> @@ -66,6 +72,9 @@ struct qpnp_tm_chip {
>>>   struct iio_channel *adc;
>>>  };
>>>  
>>> +/* This array maps from GEN2 alarm state to GEN1 alarm stage */
>>> +static const unsigned int alarm_state_map[8] = {0, 1, 1, 2, 2, 3, 3,
>>> 3};
>>> +
>>>  static int qpnp_tm_read(struct qpnp_tm_chip *chip, u16 addr, u8
>>> *data)
>>>  {
>>>   unsigned int val;
>>> @@ -84,30 +93,59 @@ static int qpnp_tm_write(struct qpnp_tm_chip
>>> *chip, u16 addr, u8 data)
>>>   return regmap_write(chip->map, chip->base + addr, data);
>>>  }
>>>  
>>> +/**
>>> + * qpnp_tm_get_temp_stage() - return over-temperature stage
>>> + * @chip: Pointer to the qpnp_tm chip
>>> + *
>>> + * Return: stage (GEN1) or state (GEN2) on success, or errno on
>>> failure.
>>> + */
>>> +static int qpnp_tm_get_temp_stage(struct qpnp_tm_chip *chip)
>>> +{
>>> + int ret;
>>> + u8 reg = 0;
>>> +
>>> + ret = qpnp_tm_read(chip, QPNP_TM_REG_STATUS, &reg);
>>> + if (ret < 0)
>>> + return ret;
>>> +
>>> + if (chip->subtype == QPNP_TM_SUBTYPE_GEN1)
>>> + ret = reg & STATUS_GEN1_STAGE_MASK;
>>> + else
>>> + ret = (reg & STATUS_GEN2_STATE_MASK) >>
>>> STATUS_GEN2_STATE_SHIFT;
>>> +
>>> + return ret;
>>> +}
>>> +
>>>  /*
>>>   * This function updates the internal temp value based on the
>>>   * current thermal stage and threshold as well as the previous stage
>>>   */
>>>  static int qpnp_tm_update_temp_no_adc(struct qpnp_tm_chip *chip)
>>>  {
>>> - unsigned int stage;
>>> + unsigned int stage, stage_new, stage_old;
>>>   int ret;
>>> - u8 reg = 0;
>>>  
>>> - ret = qpnp_tm_read(chip, QPNP_TM_REG_STATUS, &reg);
>>> + ret = qpnp_tm_get_temp_stage(chip);
>>>   if (ret < 0)
>>>   return ret;
>>> + stage = ret;
>>>  
>>> - stage = reg & STATUS_STAGE_MASK;
>>> + if (chip->subtype == QPNP_TM_SUBTYPE_GEN1) {
>>> + stage_new = stage;
>>> + stage_old = chip->stage;
>>> + } else {
>>> + stage_new = alarm_state_map[stage];
>>> + stage_old = alarm_state_map[chip->stage];
>>> + }
>>>  
>>> - if (stage > chip->stage) {
>>> + if (stage_new > stage_old) {
>>>   /* increasing stage, use lower bound */
>>> - chip->temp = (stage - 1) * TEMP_STAGE_STEP +
>>> + chip->temp = (stage_new - 1) * TEMP_STAGE_STEP +
>>>        chip->thresh * TEMP_THRESH_STEP +
>>>        TEMP_STAGE_HYSTERESIS +
>>> TEMP_THRESH_MIN;
>>> - } else if (stage < chip->stage) {
>>> + } else if (stage_new < stage_old) {
>>>   /* decreasing stage, use upper bound */
>>> - chip->temp = stage * TEMP_STAGE_STEP +
>>> + chip->temp = stage_new * TEMP_STAGE_STEP +
>>>        chip->thresh * TEMP_THRESH_STEP -
>>>        TEMP_STAGE_HYSTERESIS +
>>> TEMP_THRESH_MIN;
>>>   }
>>> @@ -162,28 +200,37 @@ static irqreturn_t qpnp_tm_isr(int irq, void
>>> *data)
>>>   */
>>>  static int qpnp_tm_init(struct qpnp_tm_chip *chip)
>>>  {
>>> + unsigned int stage;
>>>   int ret;
>>> - u8 reg;
>>> + u8 reg = 0;
>>>  
>>> - chip->thresh = THRESH_MIN;
>>> + ret = qpnp_tm_read(chip, QPNP_TM_REG_SHUTDOWN_CTRL1, &reg);
>>> + if (ret < 0)
>>> + return ret;
>>> +
>>> + chip->thresh = reg & SHUTDOWN_CTRL1_THRESHOLD_MASK;
>>>   chip->temp = DEFAULT_TEMP;
>>>  
>>> - ret = qpnp_tm_read(chip, QPNP_TM_REG_STATUS, &reg);
>>> + ret = qpnp_tm_get_temp_stage(chip);
>>>   if (ret < 0)
>>>   return ret;
>>> + chip->stage = ret;
>>>  
>>> - chip->stage = reg & STATUS_STAGE_MASK;
>>> + stage = chip->subtype == QPNP_TM_SUBTYPE_GEN1
>>> + ? chip->stage : alarm_state_map[chip->stage];
>>>  
>>> - if (chip->stage)
>>> + if (stage)
>>>   chip->temp = chip->thresh * TEMP_THRESH_STEP +
>>> -      (chip->stage - 1) * TEMP_STAGE_STEP +
>>> +      (stage - 1) * TEMP_STAGE_STEP +
>>>        TEMP_THRESH_MIN;
>>>  
>>>   /*
>>>    * Set threshold and disable software override of stage 2
>>> and 3
>>>    * shutdowns.
>>>    */
>>> - reg = chip->thresh & SHUTDOWN_CTRL1_THRESHOLD_MASK;
>>> + chip->thresh = THRESH_MIN;
>>> + reg &= ~(SHUTDOWN_CTRL1_OVERRIDE_MASK |
>>> SHUTDOWN_CTRL1_THRESHOLD_MASK);
>>> + reg |= chip->thresh & SHUTDOWN_CTRL1_THRESHOLD_MASK;
>>>   ret = qpnp_tm_write(chip, QPNP_TM_REG_SHUTDOWN_CTRL1, reg);
>>>   if (ret < 0)
>>>   return ret;
>>> @@ -242,13 +289,16 @@ static int qpnp_tm_probe(struct platform_device
>>> *pdev)
>>>   goto fail;
>>>   }
>>>  
>>> - if (type != QPNP_TM_TYPE || subtype != QPNP_TM_SUBTYPE) {
>>> + if (type != QPNP_TM_TYPE || (subtype != QPNP_TM_SUBTYPE_GEN1
>>> +      && subtype !=
>>> QPNP_TM_SUBTYPE_GEN2)) {
>>>   dev_err(&pdev->dev, "invalid type 0x%02x or subtype
>>> 0x%02x\n",
>>>   type, subtype);
>>>   ret = -ENODEV;
>>>   goto fail;
>>>   }
>>>  
>>> + chip->subtype = subtype;
>>> +
>>>   ret = qpnp_tm_init(chip);
>>>   if (ret < 0) {
>>>   dev_err(&pdev->dev, "init failed\n");
>> --
>> To unsubscribe from this list: send the line "unsubscribe
>> linux-arm-msm" in
>> the body of a message to [email protected]
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
> --
> To unsubscribe from this list: send the line "unsubscribe
> linux-arm-msm" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html

2017-08-25 02:12:59

by Zhang, Rui

[permalink] [raw]
Subject: Re: [PATCH V1] thermal: qcom-spmi-temp-alarm: add support for GEN2 PMIC peripherals

On Thu, 2017-08-17 at 13:12 +0530, [email protected] wrote:
> On 2017-08-16 17:53, [email protected] wrote:
> >
> > On 2017-08-08 13:42, Zhang Rui wrote:
> > >
> > > On Thu, 2017-07-13 at 17:39 +0530, Kiran Gunda wrote:
> > > >
> > > > From: David Collins <[email protected]>
> > > >
> > > > Add support for the TEMP_ALARM GEN2 PMIC peripheral
> > > > subtype.  The
> > > > GEN2 subtype defines an over temperature state with hysteresis
> > > > instead of stage in the status register.  There are two GEN2
> > > > states corresponding to stages 1 and 2.
> > > >
> > > > Signed-off-by: David Collins <[email protected]>
> > > > Signed-off-by: Kiran Gunda <[email protected]>
> > > Ivan,
> > >
> > > can you please review this patch and let me know your opinion?
> > >
> > > thanks,
> > > rui
> > Ivan,
> > Could you please review this patch ?
> >
> > Thanks,
> > Kiran
> Looks like Ivan is no more reviewing the patches for qcom.
> Adding Bjorn and Stephen Boyd for the review.
>
Given this is a platform specific change, I will queue it for next
merge window, and let's see if there is any problem reported.

thanks,
rui
> Thanks,
> Kiran
> >
> > >
> > > >
> > > > ---
> > > >  drivers/thermal/qcom-spmi-temp-alarm.c | 92
> > > > ++++++++++++++++++++++++++--------
> > > >  1 file changed, 71 insertions(+), 21 deletions(-)
> > > >
> > > > diff --git a/drivers/thermal/qcom-spmi-temp-alarm.c
> > > > b/drivers/thermal/qcom-spmi-temp-alarm.c
> > > > index f502419..a5e17ba 100644
> > > > --- a/drivers/thermal/qcom-spmi-temp-alarm.c
> > > > +++ b/drivers/thermal/qcom-spmi-temp-alarm.c
> > > > @@ -1,5 +1,5 @@
> > > >  /*
> > > > - * Copyright (c) 2011-2015, The Linux Foundation. All rights
> > > > reserved.
> > > > + * Copyright (c) 2011-2015, 2017, The Linux Foundation. All
> > > > rights
> > > > reserved.
> > > >   *
> > > >   * This program is free software; you can redistribute it
> > > > and/or
> > > > modify
> > > >   * it under the terms of the GNU General Public License
> > > > version 2
> > > > and
> > > > @@ -11,6 +11,7 @@
> > > >   * GNU General Public License for more details.
> > > >   */
> > > >  
> > > > +#include <linux/bitops.h>
> > > >  #include <linux/delay.h>
> > > >  #include <linux/err.h>
> > > >  #include <linux/iio/consumer.h>
> > > > @@ -29,13 +30,17 @@
> > > >  #define QPNP_TM_REG_ALARM_CTRL 0x46
> > > >  
> > > >  #define QPNP_TM_TYPE 0x09
> > > > -#define QPNP_TM_SUBTYPE 0x08
> > > > +#define QPNP_TM_SUBTYPE_GEN1 0x08
> > > > +#define QPNP_TM_SUBTYPE_GEN2 0x09
> > > >  
> > > > -#define STATUS_STAGE_MASK 0x03
> > > > +#define STATUS_GEN1_STAGE_MASK GENMASK(1, 0)
> > > > +#define STATUS_GEN2_STATE_MASK GENMASK(6, 4)
> > > > +#define STATUS_GEN2_STATE_SHIFT 4
> > > >  
> > > > -#define SHUTDOWN_CTRL1_THRESHOLD_MASK 0x03
> > > > +#define SHUTDOWN_CTRL1_OVERRIDE_MASK GENMASK(7, 6)
> > > > +#define SHUTDOWN_CTRL1_THRESHOLD_MASK GENMASK(1, 0)
> > > >  
> > > > -#define ALARM_CTRL_FORCE_ENABLE 0x80
> > > > +#define ALARM_CTRL_FORCE_ENABLE BIT(7)
> > > >  
> > > >  /*
> > > >   * Trip point values based on threshold control
> > > > @@ -58,6 +63,7 @@
> > > >  struct qpnp_tm_chip {
> > > >   struct regmap *map;
> > > >   struct thermal_zone_device *tz_dev;
> > > > + unsigned int subtype;
> > > >   long temp;
> > > >   unsigned int thresh;
> > > >   unsigned int stage;
> > > > @@ -66,6 +72,9 @@ struct qpnp_tm_chip {
> > > >   struct iio_channel *adc;
> > > >  };
> > > >  
> > > > +/* This array maps from GEN2 alarm state to GEN1 alarm stage
> > > > */
> > > > +static const unsigned int alarm_state_map[8] = {0, 1, 1, 2, 2,
> > > > 3, 3,
> > > > 3};
> > > > +
> > > >  static int qpnp_tm_read(struct qpnp_tm_chip *chip, u16 addr,
> > > > u8
> > > > *data)
> > > >  {
> > > >   unsigned int val;
> > > > @@ -84,30 +93,59 @@ static int qpnp_tm_write(struct
> > > > qpnp_tm_chip
> > > > *chip, u16 addr, u8 data)
> > > >   return regmap_write(chip->map, chip->base + addr,
> > > > data);
> > > >  }
> > > >  
> > > > +/**
> > > > + * qpnp_tm_get_temp_stage() - return over-temperature stage
> > > > + * @chip: Pointer to the qpnp_tm chip
> > > > + *
> > > > + * Return: stage (GEN1) or state (GEN2) on success, or errno
> > > > on
> > > > failure.
> > > > + */
> > > > +static int qpnp_tm_get_temp_stage(struct qpnp_tm_chip *chip)
> > > > +{
> > > > + int ret;
> > > > + u8 reg = 0;
> > > > +
> > > > + ret = qpnp_tm_read(chip, QPNP_TM_REG_STATUS, &reg);
> > > > + if (ret < 0)
> > > > + return ret;
> > > > +
> > > > + if (chip->subtype == QPNP_TM_SUBTYPE_GEN1)
> > > > + ret = reg & STATUS_GEN1_STAGE_MASK;
> > > > + else
> > > > + ret = (reg & STATUS_GEN2_STATE_MASK) >>
> > > > STATUS_GEN2_STATE_SHIFT;
> > > > +
> > > > + return ret;
> > > > +}
> > > > +
> > > >  /*
> > > >   * This function updates the internal temp value based on the
> > > >   * current thermal stage and threshold as well as the previous
> > > > stage
> > > >   */
> > > >  static int qpnp_tm_update_temp_no_adc(struct qpnp_tm_chip
> > > > *chip)
> > > >  {
> > > > - unsigned int stage;
> > > > + unsigned int stage, stage_new, stage_old;
> > > >   int ret;
> > > > - u8 reg = 0;
> > > >  
> > > > - ret = qpnp_tm_read(chip, QPNP_TM_REG_STATUS, &reg);
> > > > + ret = qpnp_tm_get_temp_stage(chip);
> > > >   if (ret < 0)
> > > >   return ret;
> > > > + stage = ret;
> > > >  
> > > > - stage = reg & STATUS_STAGE_MASK;
> > > > + if (chip->subtype == QPNP_TM_SUBTYPE_GEN1) {
> > > > + stage_new = stage;
> > > > + stage_old = chip->stage;
> > > > + } else {
> > > > + stage_new = alarm_state_map[stage];
> > > > + stage_old = alarm_state_map[chip->stage];
> > > > + }
> > > >  
> > > > - if (stage > chip->stage) {
> > > > + if (stage_new > stage_old) {
> > > >   /* increasing stage, use lower bound */
> > > > - chip->temp = (stage - 1) * TEMP_STAGE_STEP +
> > > > + chip->temp = (stage_new - 1) * TEMP_STAGE_STEP
> > > > +
> > > >        chip->thresh * TEMP_THRESH_STEP +
> > > >        TEMP_STAGE_HYSTERESIS +
> > > > TEMP_THRESH_MIN;
> > > > - } else if (stage < chip->stage) {
> > > > + } else if (stage_new < stage_old) {
> > > >   /* decreasing stage, use upper bound */
> > > > - chip->temp = stage * TEMP_STAGE_STEP +
> > > > + chip->temp = stage_new * TEMP_STAGE_STEP +
> > > >        chip->thresh * TEMP_THRESH_STEP -
> > > >        TEMP_STAGE_HYSTERESIS +
> > > > TEMP_THRESH_MIN;
> > > >   }
> > > > @@ -162,28 +200,37 @@ static irqreturn_t qpnp_tm_isr(int irq,
> > > > void
> > > > *data)
> > > >   */
> > > >  static int qpnp_tm_init(struct qpnp_tm_chip *chip)
> > > >  {
> > > > + unsigned int stage;
> > > >   int ret;
> > > > - u8 reg;
> > > > + u8 reg = 0;
> > > >  
> > > > - chip->thresh = THRESH_MIN;
> > > > + ret = qpnp_tm_read(chip, QPNP_TM_REG_SHUTDOWN_CTRL1,
> > > > &reg);
> > > > + if (ret < 0)
> > > > + return ret;
> > > > +
> > > > + chip->thresh = reg & SHUTDOWN_CTRL1_THRESHOLD_MASK;
> > > >   chip->temp = DEFAULT_TEMP;
> > > >  
> > > > - ret = qpnp_tm_read(chip, QPNP_TM_REG_STATUS, &reg);
> > > > + ret = qpnp_tm_get_temp_stage(chip);
> > > >   if (ret < 0)
> > > >   return ret;
> > > > + chip->stage = ret;
> > > >  
> > > > - chip->stage = reg & STATUS_STAGE_MASK;
> > > > + stage = chip->subtype == QPNP_TM_SUBTYPE_GEN1
> > > > + ? chip->stage : alarm_state_map[chip->stage];
> > > >  
> > > > - if (chip->stage)
> > > > + if (stage)
> > > >   chip->temp = chip->thresh * TEMP_THRESH_STEP +
> > > > -      (chip->stage - 1) *
> > > > TEMP_STAGE_STEP +
> > > > +      (stage - 1) * TEMP_STAGE_STEP +
> > > >        TEMP_THRESH_MIN;
> > > >  
> > > >   /*
> > > >    * Set threshold and disable software override of
> > > > stage 2
> > > > and 3
> > > >    * shutdowns.
> > > >    */
> > > > - reg = chip->thresh & SHUTDOWN_CTRL1_THRESHOLD_MASK;
> > > > + chip->thresh = THRESH_MIN;
> > > > + reg &= ~(SHUTDOWN_CTRL1_OVERRIDE_MASK |
> > > > SHUTDOWN_CTRL1_THRESHOLD_MASK);
> > > > + reg |= chip->thresh & SHUTDOWN_CTRL1_THRESHOLD_MASK;
> > > >   ret = qpnp_tm_write(chip, QPNP_TM_REG_SHUTDOWN_CTRL1,
> > > > reg);
> > > >   if (ret < 0)
> > > >   return ret;
> > > > @@ -242,13 +289,16 @@ static int qpnp_tm_probe(struct
> > > > platform_device
> > > > *pdev)
> > > >   goto fail;
> > > >   }
> > > >  
> > > > - if (type != QPNP_TM_TYPE || subtype !=
> > > > QPNP_TM_SUBTYPE) {
> > > > + if (type != QPNP_TM_TYPE || (subtype !=
> > > > QPNP_TM_SUBTYPE_GEN1
> > > > +      && subtype !=
> > > > QPNP_TM_SUBTYPE_GEN2)) {
> > > >   dev_err(&pdev->dev, "invalid type 0x%02x or
> > > > subtype
> > > > 0x%02x\n",
> > > >   type, subtype);
> > > >   ret = -ENODEV;
> > > >   goto fail;
> > > >   }
> > > >  
> > > > + chip->subtype = subtype;
> > > > +
> > > >   ret = qpnp_tm_init(chip);
> > > >   if (ret < 0) {
> > > >   dev_err(&pdev->dev, "init failed\n");
> > > --
> > > To unsubscribe from this list: send the line "unsubscribe 
> > > linux-arm-msm" in
> > > the body of a message to [email protected]
> > > More majordomo info at  http://vger.kernel.org/majordomo-info.htm
> > > l
> > --
> > To unsubscribe from this list: send the line "unsubscribe 
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2017-08-25 23:19:53

by Stephen Boyd

[permalink] [raw]
Subject: Re: [PATCH V1] thermal: qcom-spmi-temp-alarm: add support for GEN2 PMIC peripherals

On 08/25, Zhang Rui wrote:
> On Thu, 2017-08-17 at 13:12 +0530, [email protected] wrote:
> > On 2017-08-16 17:53, [email protected] wrote:
> > >
> > > On 2017-08-08 13:42, Zhang Rui wrote:
> > > >
> > > > On Thu, 2017-07-13 at 17:39 +0530, Kiran Gunda wrote:
> > > > >
> > > > > From: David Collins <[email protected]>
> > > > >
> > > > > Add support for the TEMP_ALARM GEN2 PMIC peripheral
> > > > > subtype.??The
> > > > > GEN2 subtype defines an over temperature state with hysteresis
> > > > > instead of stage in the status register.??There are two GEN2
> > > > > states corresponding to stages 1 and 2.
> > > > >
> > > > > Signed-off-by: David Collins <[email protected]>
> > > > > Signed-off-by: Kiran Gunda <[email protected]>
> > > > Ivan,
> > > >
> > > > can you please review this patch and let me know your opinion?
> > > >
> > > > thanks,
> > > > rui
> > > Ivan,
> > > Could you please review this patch ?
> > >
> > > Thanks,
> > > Kiran
> > Looks like Ivan is no more reviewing the patches for qcom.
> > Adding Bjorn and Stephen Boyd for the review.
> >
> Given this is a platform specific change, I will queue it for next
> merge window, and let's see if there is any problem reported.
>

FWIW,

Reviewed-by: Stephen Boyd <[email protected]>

--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

2017-08-28 05:11:08

by Kiran Gunda

[permalink] [raw]
Subject: Re: [PATCH V1] thermal: qcom-spmi-temp-alarm: add support for GEN2 PMIC peripherals

On 2017-08-26 04:49, Stephen Boyd wrote:
> On 08/25, Zhang Rui wrote:
>> On Thu, 2017-08-17 at 13:12 +0530, [email protected] wrote:
>> > On 2017-08-16 17:53, [email protected] wrote:
>> > >
>> > > On 2017-08-08 13:42, Zhang Rui wrote:
>> > > >
>> > > > On Thu, 2017-07-13 at 17:39 +0530, Kiran Gunda wrote:
>> > > > >
>> > > > > From: David Collins <[email protected]>
>> > > > >
>> > > > > Add support for the TEMP_ALARM GEN2 PMIC peripheral
>> > > > > subtype.  The
>> > > > > GEN2 subtype defines an over temperature state with hysteresis
>> > > > > instead of stage in the status register.  There are two GEN2
>> > > > > states corresponding to stages 1 and 2.
>> > > > >
>> > > > > Signed-off-by: David Collins <[email protected]>
>> > > > > Signed-off-by: Kiran Gunda <[email protected]>
>> > > > Ivan,
>> > > >
>> > > > can you please review this patch and let me know your opinion?
>> > > >
>> > > > thanks,
>> > > > rui
>> > > Ivan,
>> > > Could you please review this patch ?
>> > >
>> > > Thanks,
>> > > Kiran
>> > Looks like Ivan is no more reviewing the patches for qcom.
>> > Adding Bjorn and Stephen Boyd for the review.
>> >
>> Given this is a platform specific change, I will queue it for next
>> merge window, and let's see if there is any problem reported.
>>

Thanks for that !
>
> FWIW,
>
> Reviewed-by: Stephen Boyd <[email protected]>