diff mbox

[v3,05/10] thermal: rockchip: Add the sort flag for adc value increment or decrement

Message ID 1446974768-25795-6-git-send-email-wxt@rock-chips.com (mailing list archive)
State New, archived
Headers show

Commit Message

Caesar Wang Nov. 8, 2015, 9:26 a.m. UTC
The conversion table has the adc value and temperature.
In fact, the adc value only has the increment or decrement mode in
conversion table.

Moment, we can add the sort flag to be better support the *code_to_temp*
for differenr SoCs.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>

---

Changes in v3:
- rename the flag-> sort_flag.
- fix the indentation.
- change the pr_err information.

Changes in v2: None
Changes in v1: None

 drivers/thermal/rockchip_thermal.c | 68 +++++++++++++++++++++++++++++---------
 1 file changed, 53 insertions(+), 15 deletions(-)

Comments

kernel test robot Nov. 8, 2015, 9:42 a.m. UTC | #1
Hi Caesar,

[auto build test WARNING on: soc-thermal/next]
[also build test WARNING on: next-20151106]
[cannot apply to: rockchip/for-next v4.3]

url:    https://github.com/0day-ci/linux/commits/Caesar-Wang/Better-compatible-for-the-rockchip-thermal-and-support-RK3368-SoCs/20151108-173308
base:   https://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal next
config: x86_64-randconfig-x014-201545 (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   drivers/thermal/rockchip_thermal.c: In function 'rk_tsadcv2_code_to_temp':
>> drivers/thermal/rockchip_thermal.c:239:10: warning: switch condition has boolean value [-Wswitch-bool]
     switch (table.sort_flag) {
             ^
   drivers/thermal/rockchip_thermal.c: In function 'rockchip_thermal_suspend':
   drivers/thermal/rockchip_thermal.c:720:2: error: implicit declaration of function 'pinctrl_pm_select_sleep_state' [-Werror=implicit-function-declaration]
     pinctrl_pm_select_sleep_state(dev);
     ^
   drivers/thermal/rockchip_thermal.c: In function 'rockchip_thermal_resume':
   drivers/thermal/rockchip_thermal.c:759:2: error: implicit declaration of function 'pinctrl_pm_select_default_state' [-Werror=implicit-function-declaration]
     pinctrl_pm_select_default_state(dev);
     ^
   cc1: some warnings being treated as errors

vim +239 drivers/thermal/rockchip_thermal.c

   223		}
   224	
   225		return 0;
   226	}
   227	
   228	static int rk_tsadcv2_code_to_temp(struct chip_tsadc_table table, u32 code,
   229					   int *temp)
   230	{
   231		unsigned int low = 1;
   232		unsigned int high = table.length - 1;
   233		unsigned int mid = (low + high) / 2;
   234		unsigned int num;
   235		unsigned long denom;
   236	
   237		WARN_ON(table.length < 2);
   238	
 > 239		switch (table.sort_flag) {
   240		case ADC_DECREMENT:
   241			code &= table.data_mask;
   242			if (code < table.id[high].code)
   243				return -EAGAIN;		/* Incorrect reading */
   244	
   245			while (low <= high) {
   246				if (code >= table.id[mid].code &&
   247				    code < table.id[mid - 1].code)

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
diff mbox

Patch

diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c
index 3116d07..c1ab346 100644
--- a/drivers/thermal/rockchip_thermal.c
+++ b/drivers/thermal/rockchip_thermal.c
@@ -53,6 +53,16 @@  enum sensor_id {
 };
 
 /**
+* The conversion table has the adc value and temperature.
+* ADC_DECREMENT is the adc value decremnet.(e.g. v2_code_table)
+* ADC_INCREMNET is the adc value incremnet.(e.g. v3_code_table)
+*/
+enum sort_flag {
+	ADC_DECREMENT = 0,
+	ADC_INCREMENT,
+};
+
+/**
  * The max sensors is two in rockchip SoCs.
  * Two sensors: CPU and GPU sensor.
  */
@@ -66,6 +76,9 @@  struct chip_tsadc_table {
 
 	/* that analogic mask data */
 	u32 data_mask;
+
+	/* the flag is adc value that increment or decrement in table */
+	bool sort_flag;
 };
 
 struct rockchip_tsadc_chip {
@@ -223,19 +236,43 @@  static int rk_tsadcv2_code_to_temp(struct chip_tsadc_table table, u32 code,
 
 	WARN_ON(table.length < 2);
 
-	code &= table.data_mask;
-	if (code < table.id[high].code)
-		return -EAGAIN;		/* Incorrect reading */
-
-	while (low <= high) {
-		if (code >= table.id[mid].code &&
-		    code < table.id[mid - 1].code)
-			break;
-		else if (code < table.id[mid].code)
-			low = mid + 1;
-		else
-			high = mid - 1;
-		mid = (low + high) / 2;
+	switch (table.sort_flag) {
+	case ADC_DECREMENT:
+		code &= table.data_mask;
+		if (code < table.id[high].code)
+			return -EAGAIN;		/* Incorrect reading */
+
+		while (low <= high) {
+			if (code >= table.id[mid].code &&
+			    code < table.id[mid - 1].code)
+				break;
+			else if (code < table.id[mid].code)
+				low = mid + 1;
+			else
+				high = mid - 1;
+
+			mid = (low + high) / 2;
+		}
+		break;
+	case ADC_INCREMENT:
+		code &= table.data_mask;
+		if (code < table.id[low].code)
+			return -EAGAIN;		/* Incorrect reading */
+
+		while (low <= high) {
+			if (code >= table.id[mid - 1].code &&
+			    code < table.id[mid].code)
+				break;
+			else if (code > table.id[mid].code)
+				low = mid + 1;
+			else
+				high = mid - 1;
+
+			mid = (low + high) / 2;
+		}
+		break;
+	default:
+		pr_err("Invalid the conversion table\n");
 	}
 
 	/*
@@ -245,8 +282,8 @@  static int rk_tsadcv2_code_to_temp(struct chip_tsadc_table table, u32 code,
 	 * to produce less granular result.
 	 */
 	num = table.id[mid].temp - v2_code_table[mid - 1].temp;
-	num *= table.id[mid - 1].code - code;
-	denom = table.id[mid - 1].code - table.id[mid].code;
+	num *= abs(table.id[mid - 1].code - code);
+	denom = abs(table.id[mid - 1].code - table.id[mid].code);
 	*temp = table.id[mid - 1].temp + (num / denom);
 
 	return 0;
@@ -367,6 +404,7 @@  static const struct rockchip_tsadc_chip rk3288_tsadc_data = {
 		.id = v2_code_table,
 		.length = ARRAY_SIZE(v2_code_table),
 		.data_mask = TSADCV2_DATA_MASK,
+		.sort_flag = ADC_DECREMENT,
 	},
 };