diff options
Diffstat (limited to 'drivers/thermal/qcom/tsens.h')
| -rw-r--r-- | drivers/thermal/qcom/tsens.h | 291 |
1 files changed, 262 insertions, 29 deletions
diff --git a/drivers/thermal/qcom/tsens.h b/drivers/thermal/qcom/tsens.h index 7b7feee5dc46..eefe3844fb4e 100644 --- a/drivers/thermal/qcom/tsens.h +++ b/drivers/thermal/qcom/tsens.h @@ -9,17 +9,39 @@ #define ONE_PT_CALIB 0x1 #define ONE_PT_CALIB2 0x2 #define TWO_PT_CALIB 0x3 +#define CAL_DEGC_PT1 30 +#define CAL_DEGC_PT2 120 +#define SLOPE_FACTOR 1000 +#define SLOPE_DEFAULT 3200 + #include <linux/thermal.h> +#include <linux/regmap.h> + +struct tsens_priv; -struct tsens_device; +enum tsens_ver { + VER_0_1 = 0, + VER_1_X, + VER_2_X, +}; +/** + * struct tsens_sensor - data for each sensor connected to the tsens device + * @priv: tsens device instance that this sensor is connected to + * @tzd: pointer to the thermal zone that this sensor is in + * @offset: offset of temperature adjustment curve + * @id: Sensor ID + * @hw_id: HW ID can be used in case of platform-specific IDs + * @slope: slope of temperature adjustment curve + * @status: 8960-specific variable to track 8960 and 8660 status register offset + */ struct tsens_sensor { - struct tsens_device *tmdev; + struct tsens_priv *priv; struct thermal_zone_device *tzd; int offset; - int id; - int hw_id; + unsigned int id; + unsigned int hw_id; int slope; u32 status; }; @@ -37,63 +59,274 @@ struct tsens_sensor { */ struct tsens_ops { /* mandatory callbacks */ - int (*init)(struct tsens_device *); - int (*calibrate)(struct tsens_device *); - int (*get_temp)(struct tsens_device *, int, int *); + int (*init)(struct tsens_priv *priv); + int (*calibrate)(struct tsens_priv *priv); + int (*get_temp)(struct tsens_priv *priv, int i, int *temp); /* optional callbacks */ - int (*enable)(struct tsens_device *, int); - void (*disable)(struct tsens_device *); - int (*suspend)(struct tsens_device *); - int (*resume)(struct tsens_device *); - int (*get_trend)(struct tsens_device *, int, enum thermal_trend *); + int (*enable)(struct tsens_priv *priv, int i); + void (*disable)(struct tsens_priv *priv); + int (*suspend)(struct tsens_priv *priv); + int (*resume)(struct tsens_priv *priv); + int (*get_trend)(struct tsens_priv *priv, int i, enum thermal_trend *trend); }; -enum reg_list { - SROT_CTRL_OFFSET, +#define REG_FIELD_FOR_EACH_SENSOR11(_name, _offset, _startbit, _stopbit) \ + [_name##_##0] = REG_FIELD(_offset, _startbit, _stopbit), \ + [_name##_##1] = REG_FIELD(_offset + 4, _startbit, _stopbit), \ + [_name##_##2] = REG_FIELD(_offset + 8, _startbit, _stopbit), \ + [_name##_##3] = REG_FIELD(_offset + 12, _startbit, _stopbit), \ + [_name##_##4] = REG_FIELD(_offset + 16, _startbit, _stopbit), \ + [_name##_##5] = REG_FIELD(_offset + 20, _startbit, _stopbit), \ + [_name##_##6] = REG_FIELD(_offset + 24, _startbit, _stopbit), \ + [_name##_##7] = REG_FIELD(_offset + 28, _startbit, _stopbit), \ + [_name##_##8] = REG_FIELD(_offset + 32, _startbit, _stopbit), \ + [_name##_##9] = REG_FIELD(_offset + 36, _startbit, _stopbit), \ + [_name##_##10] = REG_FIELD(_offset + 40, _startbit, _stopbit) - REG_ARRAY_SIZE, +#define REG_FIELD_FOR_EACH_SENSOR16(_name, _offset, _startbit, _stopbit) \ + [_name##_##0] = REG_FIELD(_offset, _startbit, _stopbit), \ + [_name##_##1] = REG_FIELD(_offset + 4, _startbit, _stopbit), \ + [_name##_##2] = REG_FIELD(_offset + 8, _startbit, _stopbit), \ + [_name##_##3] = REG_FIELD(_offset + 12, _startbit, _stopbit), \ + [_name##_##4] = REG_FIELD(_offset + 16, _startbit, _stopbit), \ + [_name##_##5] = REG_FIELD(_offset + 20, _startbit, _stopbit), \ + [_name##_##6] = REG_FIELD(_offset + 24, _startbit, _stopbit), \ + [_name##_##7] = REG_FIELD(_offset + 28, _startbit, _stopbit), \ + [_name##_##8] = REG_FIELD(_offset + 32, _startbit, _stopbit), \ + [_name##_##9] = REG_FIELD(_offset + 36, _startbit, _stopbit), \ + [_name##_##10] = REG_FIELD(_offset + 40, _startbit, _stopbit), \ + [_name##_##11] = REG_FIELD(_offset + 44, _startbit, _stopbit), \ + [_name##_##12] = REG_FIELD(_offset + 48, _startbit, _stopbit), \ + [_name##_##13] = REG_FIELD(_offset + 52, _startbit, _stopbit), \ + [_name##_##14] = REG_FIELD(_offset + 56, _startbit, _stopbit), \ + [_name##_##15] = REG_FIELD(_offset + 60, _startbit, _stopbit) + +/* reg_field IDs to use as an index into an array */ +enum regfield_ids { + /* ----- SROT ------ */ + /* HW_VER */ + VER_MAJOR = 0, + VER_MINOR, + VER_STEP, + /* CTRL_OFFSET */ + TSENS_EN = 3, + TSENS_SW_RST, + SENSOR_EN, + CODE_OR_TEMP, + + /* ----- TM ------ */ + /* STATUS */ + LAST_TEMP_0 = 7, /* Last temperature reading */ + LAST_TEMP_1, + LAST_TEMP_2, + LAST_TEMP_3, + LAST_TEMP_4, + LAST_TEMP_5, + LAST_TEMP_6, + LAST_TEMP_7, + LAST_TEMP_8, + LAST_TEMP_9, + LAST_TEMP_10, + LAST_TEMP_11, + LAST_TEMP_12, + LAST_TEMP_13, + LAST_TEMP_14, + LAST_TEMP_15, + VALID_0 = 23, /* VALID reading or not */ + VALID_1, + VALID_2, + VALID_3, + VALID_4, + VALID_5, + VALID_6, + VALID_7, + VALID_8, + VALID_9, + VALID_10, + VALID_11, + VALID_12, + VALID_13, + VALID_14, + VALID_15, + MIN_STATUS_0, /* MIN threshold violated */ + MIN_STATUS_1, + MIN_STATUS_2, + MIN_STATUS_3, + MIN_STATUS_4, + MIN_STATUS_5, + MIN_STATUS_6, + MIN_STATUS_7, + MIN_STATUS_8, + MIN_STATUS_9, + MIN_STATUS_10, + MIN_STATUS_11, + MIN_STATUS_12, + MIN_STATUS_13, + MIN_STATUS_14, + MIN_STATUS_15, + MAX_STATUS_0, /* MAX threshold violated */ + MAX_STATUS_1, + MAX_STATUS_2, + MAX_STATUS_3, + MAX_STATUS_4, + MAX_STATUS_5, + MAX_STATUS_6, + MAX_STATUS_7, + MAX_STATUS_8, + MAX_STATUS_9, + MAX_STATUS_10, + MAX_STATUS_11, + MAX_STATUS_12, + MAX_STATUS_13, + MAX_STATUS_14, + MAX_STATUS_15, + LOWER_STATUS_0, /* LOWER threshold violated */ + LOWER_STATUS_1, + LOWER_STATUS_2, + LOWER_STATUS_3, + LOWER_STATUS_4, + LOWER_STATUS_5, + LOWER_STATUS_6, + LOWER_STATUS_7, + LOWER_STATUS_8, + LOWER_STATUS_9, + LOWER_STATUS_10, + LOWER_STATUS_11, + LOWER_STATUS_12, + LOWER_STATUS_13, + LOWER_STATUS_14, + LOWER_STATUS_15, + UPPER_STATUS_0, /* UPPER threshold violated */ + UPPER_STATUS_1, + UPPER_STATUS_2, + UPPER_STATUS_3, + UPPER_STATUS_4, + UPPER_STATUS_5, + UPPER_STATUS_6, + UPPER_STATUS_7, + UPPER_STATUS_8, + UPPER_STATUS_9, + UPPER_STATUS_10, + UPPER_STATUS_11, + UPPER_STATUS_12, + UPPER_STATUS_13, + UPPER_STATUS_14, + UPPER_STATUS_15, + CRITICAL_STATUS_0, /* CRITICAL threshold violated */ + CRITICAL_STATUS_1, + CRITICAL_STATUS_2, + CRITICAL_STATUS_3, + CRITICAL_STATUS_4, + CRITICAL_STATUS_5, + CRITICAL_STATUS_6, + CRITICAL_STATUS_7, + CRITICAL_STATUS_8, + CRITICAL_STATUS_9, + CRITICAL_STATUS_10, + CRITICAL_STATUS_11, + CRITICAL_STATUS_12, + CRITICAL_STATUS_13, + CRITICAL_STATUS_14, + CRITICAL_STATUS_15, + /* TRDY */ + TRDY, + /* INTERRUPT ENABLE */ + INT_EN, /* Pre-V1, V1.x */ + LOW_INT_EN, /* V2.x */ + UP_INT_EN, /* V2.x */ + CRIT_INT_EN, /* V2.x */ + + /* Keep last */ + MAX_REGFIELDS }; /** - * struct tsens_data - tsens instance specific data - * @num_sensors: Max number of sensors supported by platform + * struct tsens_features - Features supported by the IP + * @ver_major: Major number of IP version + * @crit_int: does the IP support critical interrupts? + * @adc: do the sensors only output adc code (instead of temperature)? + * @srot_split: does the IP neatly splits the register space into SROT and TM, + * with SROT only being available to secure boot firmware? + * @max_sensors: maximum sensors supported by this version of the IP + */ +struct tsens_features { + unsigned int ver_major; + unsigned int crit_int:1; + unsigned int adc:1; + unsigned int srot_split:1; + unsigned int max_sensors; +}; + +/** + * struct tsens_plat_data - tsens compile-time platform data + * @num_sensors: Number of sensors supported by platform * @ops: operations the tsens instance supports * @hw_ids: Subset of sensors ids supported by platform, if not the first n - * @reg_offsets: Register offsets for commonly used registers + * @feat: features of the IP + * @fields: bitfield locations */ -struct tsens_data { +struct tsens_plat_data { const u32 num_sensors; const struct tsens_ops *ops; - const u16 reg_offsets[REG_ARRAY_SIZE]; unsigned int *hw_ids; + const struct tsens_features *feat; + const struct reg_field *fields; }; -/* Registers to be saved/restored across a context loss */ +/** + * struct tsens_context - Registers to be saved/restored across a context loss + */ struct tsens_context { int threshold; int control; }; -struct tsens_device { +/** + * struct tsens_priv - private data for each instance of the tsens IP + * @dev: pointer to struct device + * @num_sensors: number of sensors enabled on this device + * @tm_map: pointer to TM register address space + * @srot_map: pointer to SROT register address space + * @tm_offset: deal with old device trees that don't address TM and SROT + * address space separately + * @rf: array of regmap_fields used to store value of the field + * @ctx: registers to be saved and restored during suspend/resume + * @feat: features of the IP + * @fields: bitfield locations + * @ops: pointer to list of callbacks supported by this device + * @sensor: list of sensors attached to this device + */ +struct tsens_priv { struct device *dev; u32 num_sensors; struct regmap *tm_map; struct regmap *srot_map; u32 tm_offset; - u16 reg_offsets[REG_ARRAY_SIZE]; + struct regmap_field *rf[MAX_REGFIELDS]; struct tsens_context ctx; + const struct tsens_features *feat; + const struct reg_field *fields; const struct tsens_ops *ops; struct tsens_sensor sensor[0]; }; -char *qfprom_read(struct device *, const char *); -void compute_intercept_slope(struct tsens_device *, u32 *, u32 *, u32); -int init_common(struct tsens_device *); -int get_temp_common(struct tsens_device *, int, int *); +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); + +/* TSENS target */ +extern const struct tsens_plat_data data_8960; + +/* TSENS v0.1 targets */ +extern const struct tsens_plat_data data_8916, data_8974; /* TSENS v1 targets */ -extern const struct tsens_data data_8916, data_8974, data_8960; +extern const struct tsens_plat_data data_tsens_v1; + /* TSENS v2 targets */ -extern const struct tsens_data data_8996, data_tsens_v2; +extern const struct tsens_plat_data data_8996, data_tsens_v2; #endif /* __QCOM_TSENS_H__ */ |