From c8b6169093f66e9bae6eb5157ccc4ad426402caf Mon Sep 17 00:00:00 2001 From: Amit Kucheria Date: Wed, 20 Mar 2019 18:47:57 +0530 Subject: [PATCH] drivers: thermal: tsens: Move get_temp_tsens_v2 to allow sharing Just rename the function and move it to allow code sharing with future versions of TSENS IP Signed-off-by: Amit Kucheria Signed-off-by: Eduardo Valentin --- drivers/thermal/qcom/tsens-common.c | 35 +++++++++++++++++++++++++++++++++++ drivers/thermal/qcom/tsens-v2.c | 37 +------------------------------------ drivers/thermal/qcom/tsens.h | 1 + 3 files changed, 37 insertions(+), 36 deletions(-) diff --git a/drivers/thermal/qcom/tsens-common.c b/drivers/thermal/qcom/tsens-common.c index 5607c5cc635c..5adbf1a2e0fb 100644 --- a/drivers/thermal/qcom/tsens-common.c +++ b/drivers/thermal/qcom/tsens-common.c @@ -102,6 +102,41 @@ static inline int code_to_degc(u32 adc_code, const struct tsens_sensor *s) return degc; } +int get_temp_tsens_valid(struct tsens_priv *priv, int i, int *temp) +{ + struct tsens_sensor *s = &priv->sensor[i]; + u32 temp_idx = LAST_TEMP_0 + s->hw_id; + u32 valid_idx = VALID_0 + s->hw_id; + u32 last_temp = 0, valid, mask; + int ret; + + ret = regmap_field_read(priv->rf[valid_idx], &valid); + if (ret) + return ret; + while (!valid) { + /* Valid bit is 0 for 6 AHB clock cycles. + * At 19.2MHz, 1 AHB clock is ~60ns. + * We should enter this loop very, very rarely. + */ + ndelay(400); + ret = regmap_field_read(priv->rf[valid_idx], &valid); + if (ret) + return ret; + } + + /* Valid bit is set, OK to read the temperature */ + ret = regmap_field_read(priv->rf[temp_idx], &last_temp); + if (ret) + return ret; + + mask = GENMASK(priv->fields[LAST_TEMP_0].msb, + priv->fields[LAST_TEMP_0].lsb); + /* Convert temperature from deciCelsius to milliCelsius */ + *temp = sign_extend32(last_temp, fls(mask) - 1) * 100; + + return 0; +} + int get_temp_common(struct tsens_priv *priv, int i, int *temp) { struct tsens_sensor *s = &priv->sensor[i]; diff --git a/drivers/thermal/qcom/tsens-v2.c b/drivers/thermal/qcom/tsens-v2.c index 780e16b09b28..1099069f2aa3 100644 --- a/drivers/thermal/qcom/tsens-v2.c +++ b/drivers/thermal/qcom/tsens-v2.c @@ -25,41 +25,6 @@ #define TM_Sn_STATUS_OFF 0x00a0 #define TM_TRDY_OFF 0x00e4 -static int get_temp_tsens_v2(struct tsens_priv *priv, int i, int *temp) -{ - struct tsens_sensor *s = &priv->sensor[i]; - u32 temp_idx = LAST_TEMP_0 + s->hw_id; - u32 valid_idx = VALID_0 + s->hw_id; - u32 last_temp = 0, valid, mask; - int ret; - - ret = regmap_field_read(priv->rf[valid_idx], &valid); - if (ret) - return ret; - while (!valid) { - /* Valid bit is 0 for 6 AHB clock cycles. - * At 19.2MHz, 1 AHB clock is ~60ns. - * We should enter this loop very, very rarely. - */ - ndelay(400); - ret = regmap_field_read(priv->rf[valid_idx], &valid); - if (ret) - return ret; - } - - /* Valid bit is set, OK to read the temperature */ - ret = regmap_field_read(priv->rf[temp_idx], &last_temp); - if (ret) - return ret; - - mask = GENMASK(priv->fields[LAST_TEMP_0].msb, - priv->fields[LAST_TEMP_0].lsb); - /* Convert temperature from deciCelsius to milliCelsius */ - *temp = sign_extend32(last_temp, fls(mask) - 1) * 100; - - return 0; -} - /* v2.x: 8996, 8998, sdm845 */ static const struct tsens_features tsens_v2_feat = { @@ -101,7 +66,7 @@ static const struct reg_field tsens_v2_regfields[MAX_REGFIELDS] = { static const struct tsens_ops ops_generic_v2 = { .init = init_common, - .get_temp = get_temp_tsens_v2, + .get_temp = get_temp_tsens_valid, }; const struct tsens_plat_data data_tsens_v2 = { diff --git a/drivers/thermal/qcom/tsens.h b/drivers/thermal/qcom/tsens.h index 080e15a09ac2..f14a87aa1a47 100644 --- a/drivers/thermal/qcom/tsens.h +++ b/drivers/thermal/qcom/tsens.h @@ -308,6 +308,7 @@ struct tsens_priv { char *qfprom_read(struct device *dev, const char *cname); void compute_intercept_slope(struct tsens_priv *priv, u32 *pt1, u32 *pt2, u32 mode); int init_common(struct tsens_priv *priv); +int get_temp_tsens_valid(struct tsens_priv *priv, int i, int *temp); int get_temp_common(struct tsens_priv *priv, int i, int *temp); bool is_sensor_enabled(struct tsens_priv *priv, u32 hw_id); -- 2.11.0