[PATCH 3/7] thermal: mediatek: add calibration item

michael.kao
2019-02-01T07:38:24Z

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 --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;
--
1.9.1