diff options
| author | Laxman Dewangan <ldewangan@nvidia.com> | 2015-04-23 16:10:24 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-05-22 13:47:33 +0100 |
| commit | 69eb0980ab4ced06f7c2b4774575337ce32912fb (patch) | |
| tree | 3aeacd3144999f69e9bd679829f21a0f29abe301 /include/linux/regulator | |
| parent | c2ffa9737878ad9843d1e0e904dc9a086438aff8 (diff) | |
| download | talos-obmc-linux-69eb0980ab4ced06f7c2b4774575337ce32912fb.tar.gz talos-obmc-linux-69eb0980ab4ced06f7c2b4774575337ce32912fb.zip | |
regulator: max8973: add mechanism to enable/disable through GPIO
MAX8973 supports the voltage output enable/disable through its EN
pin. This EN pin can be connected through GPIO from host processor.
Add support to provide GPIO number from platform/DT and if it is
valid GPIO then enable external control default.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/regulator')
| -rw-r--r-- | include/linux/regulator/max8973-regulator.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/regulator/max8973-regulator.h b/include/linux/regulator/max8973-regulator.h index f8acc052e353..f6a8a16a0d4d 100644 --- a/include/linux/regulator/max8973-regulator.h +++ b/include/linux/regulator/max8973-regulator.h @@ -58,6 +58,9 @@ * control signal from EN input pin. If it is false then * voltage output will be enabled/disabled through EN bit of * device register. + * @enable_gpio: Enable GPIO. If EN pin is controlled through GPIO from host + * then GPIO number can be provided. If no GPIO controlled then + * it should be -1. * @dvs_gpio: GPIO for dvs. It should be -1 if this is tied with fixed logic. * @dvs_def_state: Default state of dvs. 1 if it is high else 0. */ @@ -65,6 +68,7 @@ struct max8973_regulator_platform_data { struct regulator_init_data *reg_init_data; unsigned long control_flags; bool enable_ext_control; + int enable_gpio; int dvs_gpio; unsigned dvs_def_state:1; }; |
