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| author | Axel Haslam <ahaslam@baylibre.com> | 2016-11-03 12:11:42 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-11-04 12:15:25 -0600 |
| commit | 1b5b42216469b05ef4b5916cb40b127dfab1da88 (patch) | |
| tree | 088f4074ec93c863025c27126c400f85009ad92a /include/linux/regulator/consumer.h | |
| parent | 1001354ca34179f3db924eb66672442a173147dc (diff) | |
| download | linux-stable-1b5b42216469b05ef4b5916cb40b127dfab1da88.tar.gz linux-stable-1b5b42216469b05ef4b5916cb40b127dfab1da88.tar.bz2 linux-stable-1b5b42216469b05ef4b5916cb40b127dfab1da88.zip | |
regulator: core: Add new API to poll for error conditions
Regulator consumers can receive event notifications when
errors are reported to the driver, but currently, there is
no way for a regulator consumer to know when the error is over.
To allow a regulator consumer to poll for error conditions
add a new API: regulator_get_error_flags.
Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/regulator/consumer.h')
| -rw-r--r-- | include/linux/regulator/consumer.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index 692108222271..528eb1f5273e 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -120,6 +120,25 @@ struct regmap; #define REGULATOR_EVENT_PRE_DISABLE 0x400 #define REGULATOR_EVENT_ABORT_DISABLE 0x800 +/* + * Regulator errors that can be queried using regulator_get_error_flags + * + * UNDER_VOLTAGE Regulator output is under voltage. + * OVER_CURRENT Regulator output current is too high. + * REGULATION_OUT Regulator output is out of regulation. + * FAIL Regulator output has failed. + * OVER_TEMP Regulator over temp. + * + * NOTE: These errors can be OR'ed together. + */ + +#define REGULATOR_ERROR_UNDER_VOLTAGE BIT(1) +#define REGULATOR_ERROR_OVER_CURRENT BIT(2) +#define REGULATOR_ERROR_REGULATION_OUT BIT(3) +#define REGULATOR_ERROR_FAIL BIT(4) +#define REGULATOR_ERROR_OVER_TEMP BIT(5) + + /** * struct pre_voltage_change_data - Data sent with PRE_VOLTAGE_CHANGE event * @@ -237,6 +256,8 @@ int regulator_get_current_limit(struct regulator *regulator); int regulator_set_mode(struct regulator *regulator, unsigned int mode); unsigned int regulator_get_mode(struct regulator *regulator); +int regulator_get_error_flags(struct regulator *regulator, + unsigned int *flags); int regulator_set_load(struct regulator *regulator, int load_uA); int regulator_allow_bypass(struct regulator *regulator, bool allow); @@ -477,6 +498,11 @@ static inline unsigned int regulator_get_mode(struct regulator *regulator) return REGULATOR_MODE_NORMAL; } +static inline int regulator_get_error_flags(struct regulator *regulator) +{ + return -EINVAL; +} + static inline int regulator_set_load(struct regulator *regulator, int load_uA) { return REGULATOR_MODE_NORMAL; |