diff options
Diffstat (limited to 'drivers/thermal/qcom/tsens.h')
| -rw-r--r-- | drivers/thermal/qcom/tsens.h | 46 |
1 files changed, 45 insertions, 1 deletions
diff --git a/drivers/thermal/qcom/tsens.h b/drivers/thermal/qcom/tsens.h index 899af128855f..dba9cd38f637 100644 --- a/drivers/thermal/qcom/tsens.h +++ b/drivers/thermal/qcom/tsens.h @@ -6,6 +6,7 @@ #ifndef __QCOM_TSENS_H__ #define __QCOM_TSENS_H__ +#define NO_PT_CALIB 0x0 #define ONE_PT_CALIB 0x1 #define ONE_PT_CALIB2 0x2 #define TWO_PT_CALIB 0x3 @@ -17,6 +18,8 @@ #define THRESHOLD_MAX_ADC_CODE 0x3ff #define THRESHOLD_MIN_ADC_CODE 0x0 +#define MAX_SENSORS 16 + #include <linux/interrupt.h> #include <linux/thermal.h> #include <linux/regmap.h> @@ -581,7 +584,48 @@ struct tsens_priv { struct tsens_sensor sensor[]; }; +/** + * struct tsens_single_value - internal representation of a single field inside nvmem calibration data + * @idx: index into the u32 data array + * @shift: the shift of the first bit in the value + * @blob: index of the data blob to use for this cell + */ +struct tsens_single_value { + u8 idx; + u8 shift; + u8 blob; +}; + +/** + * struct tsens_legacy_calibration_format - description of calibration data used when parsing the legacy nvmem blob + * @base_len: the length of the base fields inside calibration data + * @base_shift: the shift to be applied to base data + * @sp_len: the length of the sN_pM fields inside calibration data + * @mode: descriptor of the calibration mode field + * @invalid: descriptor of the calibration mode invalid field + * @base: descriptors of the base0 and base1 fields + * @sp: descriptors of the sN_pM fields + */ +struct tsens_legacy_calibration_format { + unsigned int base_len; + unsigned int base_shift; + unsigned int sp_len; + /* just two bits */ + struct tsens_single_value mode; + /* on all platforms except 8974 invalid is the third bit of what downstream calls 'mode' */ + struct tsens_single_value invalid; + struct tsens_single_value base[2]; + struct tsens_single_value sp[][2]; +}; + char *qfprom_read(struct device *dev, const char *cname); +int tsens_read_calibration_legacy(struct tsens_priv *priv, + const struct tsens_legacy_calibration_format *format, + u32 *p1, u32 *p2, + u32 *cdata, u32 *csel); +int tsens_read_calibration(struct tsens_priv *priv, int shift, u32 *p1, u32 *p2, bool backup); +int tsens_calibrate_nvmem(struct tsens_priv *priv, int shift); +int tsens_calibrate_common(struct tsens_priv *priv); 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(const struct tsens_sensor *s, int *temp); @@ -594,7 +638,7 @@ extern struct tsens_plat_data data_8960; extern struct tsens_plat_data data_8916, data_8939, data_8974, data_9607; /* TSENS v1 targets */ -extern struct tsens_plat_data data_tsens_v1, data_8976; +extern struct tsens_plat_data data_tsens_v1, data_8976, data_8956; /* TSENS v2 targets */ extern struct tsens_plat_data data_8996, data_ipq8074, data_tsens_v2; |