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| author | Konstantin Porotchkin <kostap@marvell.com> | 2017-05-29 15:59:38 +0300 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2021-04-29 07:38:57 +0200 |
| commit | fec8c900c8b2a08661f6ac3e1e71d6af6aaa67cd (patch) | |
| tree | b37837fba8d03d6732897ccc081036d7720f8c44 /include/power | |
| parent | 939c4934c8e91b34b258c9487be6a889a6a43546 (diff) | |
| download | u-boot-fec8c900c8b2a08661f6ac3e1e71d6af6aaa67cd.tar.gz u-boot-fec8c900c8b2a08661f6ac3e1e71d6af6aaa67cd.tar.xz u-boot-fec8c900c8b2a08661f6ac3e1e71d6af6aaa67cd.zip | |
power: regulator: Add support for regulator-force-boot-off
Add support for regulator-force-boot-off DT property.
This property can be used by the board/device drivers for
turning off regulators on early init stages as pre-requisite
for the other components initialization.
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Diffstat (limited to 'include/power')
| -rw-r--r-- | include/power/regulator.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/power/regulator.h b/include/power/regulator.h index da9a065bdd..fad87c99e5 100644 --- a/include/power/regulator.h +++ b/include/power/regulator.h @@ -151,6 +151,7 @@ enum regulator_flag { * @max_uA* - maximum amperage (micro Amps) * @always_on* - bool type, true or false * @boot_on* - bool type, true or false + * @force_off* - bool type, true or false * TODO(sjg@chromium.org): Consider putting the above two into @flags * @ramp_delay - Time to settle down after voltage change (unit: uV/us) * @flags: - flags value (see REGULATOR_FLAG_...) @@ -176,6 +177,7 @@ struct dm_regulator_uclass_plat { unsigned int ramp_delay; bool always_on; bool boot_on; + bool force_off; const char *name; int flags; u8 ctrl_reg; @@ -421,6 +423,15 @@ int regulator_set_mode(struct udevice *dev, int mode_id); int regulators_enable_boot_on(bool verbose); /** + * regulators_enable_boot_off() - disable regulators needed for boot + * + * This disables all regulators which are marked to be off at boot time. + * + * This effectively calls regulator_unset() for every regulator. + */ +int regulators_enable_boot_off(bool verbose); + +/** * regulator_autoset: setup the voltage/current on a regulator * * The setup depends on constraints found in device's uclass's platform data @@ -440,6 +451,18 @@ int regulators_enable_boot_on(bool verbose); int regulator_autoset(struct udevice *dev); /** + * regulator_unset: turn off a regulator + * + * The setup depends on constraints found in device's uclass's platform data + * (struct dm_regulator_uclass_platdata): + * + * - Disable - will set - if 'force_off' is set to true, + * + * The function returns on the first-encountered error. + */ +int regulator_unset(struct udevice *dev); + +/** * regulator_autoset_by_name: setup the regulator given by its uclass's * platform data name field. The setup depends on constraints found in device's * uclass's platform data (struct dm_regulator_uclass_plat): |