diff mbox series

[v2,3/7] thermal: mediatek: add calibration item

Message ID 1550665893-22561-4-git-send-email-michael.kao@mediatek.com (mailing list archive)
State Accepted
Delegated to: Eduardo Valentin
Headers show
Series Add Mediatek thermal dirver for mt8183 | expand

Commit Message

Michael Kao Feb. 20, 2019, 12:31 p.m. UTC 
From: Michael Kao <michael.kao@mediatek.com>

Add calibration item in thermal_data to support
the project with different calibration coefficient.

Signed-off-by: Michael Kao <michael.kao@mediatek.com>
---
 drivers/thermal/mtk_thermal.c | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
index 07f8ad7..45c6587 100644
--- a/drivers/thermal/mtk_thermal.c
+++ b/drivers/thermal/mtk_thermal.c
@@ -105,6 +105,9 @@ 
 /* The number of sensing points per bank */
 #define MT8173_NUM_SENSORS_PER_ZONE	4
 
+/* The calibration coefficient of sensor  */
+#define MT8173_CALIBRATION	165
+
 /*
  * Layout of the fuses providing the calibration data
  * These macros could be used for MT8173, MT2701, and MT2712.
@@ -147,6 +150,9 @@  enum {
 /* The number of sensing points per bank */
 #define MT2701_NUM_SENSORS_PER_ZONE	3
 
+/* The calibration coefficient of sensor  */
+#define MT2701_CALIBRATION	165
+
 /* MT2712 thermal sensors */
 #define MT2712_TS1	0
 #define MT2712_TS2	1
@@ -162,12 +168,18 @@  enum {
 /* The number of sensing points per bank */
 #define MT2712_NUM_SENSORS_PER_ZONE	4
 
+/* The calibration coefficient of sensor  */
+#define MT2712_CALIBRATION	165
+
 #define MT7622_TEMP_AUXADC_CHANNEL	11
 #define MT7622_NUM_SENSORS		1
 #define MT7622_NUM_ZONES		1
 #define MT7622_NUM_SENSORS_PER_ZONE	1
 #define MT7622_TS1	0
 
+/* The calibration coefficient of sensor  */
+#define MT7622_CALIBRATION	165
+
 struct mtk_thermal;
 
 struct thermal_bank_cfg {
@@ -188,6 +200,7 @@  struct mtk_thermal_data {
 	const int *sensor_mux_values;
 	const int *msr;
 	const int *adcpnp;
+	const int cali_val;
 	struct thermal_bank_cfg bank_data[];
 };
 
@@ -295,6 +308,7 @@  struct mtk_thermal {
 	.num_banks = MT8173_NUM_ZONES,
 	.num_sensors = MT8173_NUM_SENSORS,
 	.vts_index = mt8173_vts_index,
+	.cali_val = MT8173_CALIBRATION,
 	.bank_data = {
 		{
 			.num_sensors = 2,
@@ -330,6 +344,7 @@  struct mtk_thermal {
 	.num_banks = 1,
 	.num_sensors = MT2701_NUM_SENSORS,
 	.vts_index = mt2701_vts_index,
+	.cali_val = MT2701_CALIBRATION,
 	.bank_data = {
 		{
 			.num_sensors = 3,
@@ -356,6 +371,7 @@  struct mtk_thermal {
 	.num_banks = 1,
 	.num_sensors = MT2712_NUM_SENSORS,
 	.vts_index = mt2712_vts_index,
+	.cali_val = MT2712_CALIBRATION,
 	.bank_data = {
 		{
 			.num_sensors = 4,
@@ -376,6 +392,7 @@  struct mtk_thermal {
 	.num_banks = MT7622_NUM_ZONES,
 	.num_sensors = MT7622_NUM_SENSORS,
 	.vts_index = mt7622_vts_index,
+	.cali_val = MT7622_CALIBRATION,
 	.bank_data = {
 		{
 			.num_sensors = 1,
@@ -402,7 +419,7 @@  static int raw_to_mcelsius(struct mtk_thermal *mt, int sensno, s32 raw)
 	raw &= 0xfff;
 
 	tmp = 203450520 << 3;
-	tmp /= 165 + mt->o_slope;
+	tmp /= mt->conf->cali_val + mt->o_slope;
 	tmp /= 10000 + mt->adc_ge;
 	tmp *= raw - mt->vts[sensno] - 3350;
 	tmp >>= 3;