From 96f10c9d7a88717e84782449122b958e5a15eddd Mon Sep 17 00:00:00 2001 From: Ansuel Smith Date: Mon, 1 Mar 2021 01:02:09 +0100 Subject: ipq806x: use newer tsens patch Use improved tsens patch proposed upstream. Signed-off-by: Ansuel Smith --- ...rmal-tsens-Replace-custom-8960-apis-with-.patch | 114 +++++++++++++++++++++ 1 file changed, 114 insertions(+) create mode 100644 target/linux/ipq806x/patches-5.10/104-6-drivers-thermal-tsens-Replace-custom-8960-apis-with-.patch (limited to 'target/linux/ipq806x/patches-5.10/104-6-drivers-thermal-tsens-Replace-custom-8960-apis-with-.patch') diff --git a/target/linux/ipq806x/patches-5.10/104-6-drivers-thermal-tsens-Replace-custom-8960-apis-with-.patch b/target/linux/ipq806x/patches-5.10/104-6-drivers-thermal-tsens-Replace-custom-8960-apis-with-.patch new file mode 100644 index 0000000000..657f8b801b --- /dev/null +++ b/target/linux/ipq806x/patches-5.10/104-6-drivers-thermal-tsens-Replace-custom-8960-apis-with-.patch @@ -0,0 +1,114 @@ +From 1ff9f982051759e0387e8c7e793b49c48eae291d Mon Sep 17 00:00:00 2001 +From: Ansuel Smith +Date: Wed, 25 Nov 2020 17:11:05 +0100 +Subject: [PATCH 06/10] drivers: thermal: tsens: Replace custom 8960 apis with + generic apis + +Rework calibrate function to use common function. Derive the offset from +a missing hardcoded slope table and the data from the nvmem calib +efuses. +Drop custom get_temp function and use generic api. + +Signed-off-by: Ansuel Smith +Acked-by: Thara Gopinath +--- + drivers/thermal/qcom/tsens-8960.c | 56 +++++++++---------------------- + 1 file changed, 15 insertions(+), 41 deletions(-) + +diff --git a/drivers/thermal/qcom/tsens-8960.c b/drivers/thermal/qcom/tsens-8960.c +index 95fcccafae14..9cc8a7dd23ae 100644 +--- a/drivers/thermal/qcom/tsens-8960.c ++++ b/drivers/thermal/qcom/tsens-8960.c +@@ -67,6 +67,13 @@ + #define S9_STATUS_OFF 0x3674 + #define S10_STATUS_OFF 0x3678 + ++/* Original slope - 200 to compensate mC to C inaccuracy */ ++static u32 tsens_msm8960_slope[] = { ++ 976, 976, 954, 976, ++ 911, 932, 932, 999, ++ 932, 999, 932 ++ }; ++ + static int suspend_8960(struct tsens_priv *priv) + { + int ret; +@@ -194,9 +201,7 @@ static int calibrate_8960(struct tsens_priv *priv) + { + int i; + char *data; +- +- ssize_t num_read = priv->num_sensors; +- struct tsens_sensor *s = priv->sensor; ++ u32 p1[11]; + + data = qfprom_read(priv->dev, "calib"); + if (IS_ERR(data)) +@@ -204,49 +209,18 @@ static int calibrate_8960(struct tsens_priv *priv) + if (IS_ERR(data)) + return PTR_ERR(data); + +- for (i = 0; i < num_read; i++, s++) +- s->offset = data[i]; ++ for (i = 0; i < priv->num_sensors; i++) { ++ p1[i] = data[i]; ++ priv->sensor[i].slope = tsens_msm8960_slope[i]; ++ } ++ ++ compute_intercept_slope(priv, p1, NULL, ONE_PT_CALIB); + + kfree(data); + + return 0; + } + +-/* Temperature on y axis and ADC-code on x-axis */ +-static inline int code_to_mdegC(u32 adc_code, const struct tsens_sensor *s) +-{ +- int slope, offset; +- +- slope = thermal_zone_get_slope(s->tzd); +- offset = CAL_MDEGC - slope * s->offset; +- +- return adc_code * slope + offset; +-} +- +-static int get_temp_8960(const struct tsens_sensor *s, int *temp) +-{ +- int ret; +- u32 code, trdy; +- struct tsens_priv *priv = s->priv; +- unsigned long timeout; +- +- timeout = jiffies + usecs_to_jiffies(TIMEOUT_US); +- do { +- ret = regmap_read(priv->tm_map, INT_STATUS_ADDR, &trdy); +- if (ret) +- return ret; +- if (!(trdy & TRDY_MASK)) +- continue; +- ret = regmap_read(priv->tm_map, s->status, &code); +- if (ret) +- return ret; +- *temp = code_to_mdegC(code, s); +- return 0; +- } while (time_before(jiffies, timeout)); +- +- return -ETIMEDOUT; +-} +- + static struct tsens_features tsens_8960_feat = { + .ver_major = VER_0, + .crit_int = 0, +@@ -315,7 +289,7 @@ static const struct reg_field tsens_8960_regfields[MAX_REGFIELDS] = { + static const struct tsens_ops ops_8960 = { + .init = init_common, + .calibrate = calibrate_8960, +- .get_temp = get_temp_8960, ++ .get_temp = get_temp_common, + .enable = enable_8960, + .disable = disable_8960, + .suspend = suspend_8960, +-- +2.30.2 + -- cgit v1.2.3