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regulator: gpio: Add input_supply support in gpio_regulator_config

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This is simillar as fixed-regulator.
Used to extract regulator parent from the device tree.

Without that property used, the parent regulator can be shut down (if not an always on).
Thus leading to inappropriate behavior:
On am62-SP-SK this fix is required to avoid tps65219 ldo1 (SDMMC rail) to be shut down after boot completion.

Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
Link: https://lore.kernel.org/r/20220929132526.29427-2-jneanne@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jerome Neanne
2022-09-29 15:25:25 +02:00
committed by Mark Brown
parent 947934e389
commit adfdfcbdbd
2 changed files with 17 additions and 0 deletions
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2
include/linux/regulator/gpio-regulator.h
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@@ -42,6 +42,7 @@ struct gpio_regulator_state {
/**
* struct gpio_regulator_config - config structure
* @supply_name: Name of the regulator supply
* @input_supply: Name of the input regulator supply
* @enabled_at_boot: Whether regulator has been enabled at
* boot or not. 1 = Yes, 0 = No
* This is used to keep the regulator at
@@ -62,6 +63,7 @@ struct gpio_regulator_state {
*/
struct gpio_regulator_config {
const char *supply_name;
const char *input_supply;
unsigned enabled_at_boot:1;
unsigned startup_delay;