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| author | Heiko Stübner <heiko@sntech.de> | 2014-08-28 12:36:04 -0700 |
|---|---|---|
| committer | Mark Brown <broonie+linaro@kernel.org> | 2014-08-29 11:58:31 +0100 |
| commit | 7179569aeb52197fd2a9909ba226c4c9cc0e2e2a (patch) | |
| tree | 39757ab5ecbc23dc54a7b8489f4b104156439364 /include/linux/regulator | |
| parent | 7d1311b93e58ed55f3a31cc8f94c4b8fe988a2b9 (diff) | |
| download | talos-obmc-linux-7179569aeb52197fd2a9909ba226c4c9cc0e2e2a.tar.gz talos-obmc-linux-7179569aeb52197fd2a9909ba226c4c9cc0e2e2a.zip | |
regulator: core: Add REGULATOR_EVENT_PRE_VOLTAGE_CHANGE (and ABORT)
In some cases we need to know when a regulator is about to be changed.
Add a way for clients to be notified. Note that for set_voltage() we
don't necessarily know what voltage we'll end up with, so we tell the
client what the range will be so they can prepare.
Signed-off-by: Heiko Stübner <heiko@sntech.de>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie+linaro@kernel.org>
Diffstat (limited to 'include/linux/regulator')
| -rw-r--r-- | include/linux/regulator/consumer.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index f8a8733068a7..d347c805f923 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -93,7 +93,12 @@ struct regmap; * OVER_TEMP Regulator over temp. * FORCE_DISABLE Regulator forcibly shut down by software. * VOLTAGE_CHANGE Regulator voltage changed. + * Data passed is old voltage cast to (void *). * DISABLE Regulator was disabled. + * PRE_VOLTAGE_CHANGE Regulator is about to have voltage changed. + * Data passed is "struct pre_voltage_change_data" + * ABORT_VOLTAGE_CHANGE Regulator voltage change failed for some reason. + * Data passed is old voltage cast to (void *). * * NOTE: These events can be OR'ed together when passed into handler. */ @@ -106,6 +111,21 @@ struct regmap; #define REGULATOR_EVENT_FORCE_DISABLE 0x20 #define REGULATOR_EVENT_VOLTAGE_CHANGE 0x40 #define REGULATOR_EVENT_DISABLE 0x80 +#define REGULATOR_EVENT_PRE_VOLTAGE_CHANGE 0x100 +#define REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE 0x200 + +/** + * struct pre_voltage_change_data - Data sent with PRE_VOLTAGE_CHANGE event + * + * @old_uV: Current voltage before change. + * @min_uV: Min voltage we'll change to. + * @max_uV: Max voltage we'll change to. + */ +struct pre_voltage_change_data { + unsigned long old_uV; + unsigned long min_uV; + unsigned long max_uV; +}; struct regulator; |
