u-boot.git/drivers/power/regulator/regulator_common.c, branch main

power: regulator: Fix power on/off delay issue

2026-06-09T15:55:56Z

SD initialization failure happens with some UHS-I SD cards on iMX8MM/iMX93/iMX91 EVK after commit 4fcba5d556b4 ("regulator: implement basic reference counter"). When sending operation condition to SD card, the OCR does not return correct status. The root cause is regulator on/off delay is missed in MMC power cycle with above commit, so SD card is not completely power off. When SD startup, the sequence of MMC power cycle is: mmc_power_init(get vmmc_supply dev) -> mmc_power_off -> udelay(2000) -> mmc_power_on Before above commit, as a fixed regulator, the GPIO is set as: GPIO inactive (in mmc_power_init) -> GPIO inactive and delay off-on-delay-us (in mmc_power_off) -> udelay(2000) -> GPIO active (in mmc_power_on) After the commit: GPIO inactive (in mmc_power_init) -> enable_count is 0, regulator_set_enable returns -EALREADY immediately, so GPIO is inactive but No off-on-delay-us (in mmc_power_off) -> udelay(2000) -> GPIO active (in mmc_power_on) Move the off-on-delay-us delay before setting GPIO active to fix the issue. Signed-off-by: Ye Li Reviewed-by: Peng Fan Signed-off-by: Peng Fan

power: regulator: common: fix compilation issue

2026-01-22T02:38:22Z

If CONFIG_DM_GPIO is not enabled, compilation fails with the following errors: aarch64-none-linux-gnu-ld: drivers/power/regulator/regulator_common.o: in function `regulator_common_of_to_plat': <...>/u-boot/drivers/power/regulator/regulator_common.c:30: undefined reference to `gpio_request_by_name' aarch64-none-linux-gnu-ld: drivers/power/regulator/regulator_common.o: in function `regulator_common_get_enable': <...>/u-boot/drivers/power/regulator/regulator_common.c:57: undefined reference to `dm_gpio_get_value' aarch64-none-linux-gnu-ld: drivers/power/regulator/regulator_common.o: in function `regulator_common_set_enable': <...>/u-boot/drivers/power/regulator/regulator_common.c:92: undefined reference to `dm_gpio_set_value' make: *** [Makefile:2029: u-boot] Error 139 Since the enable gpio is optional we can conditionally skip these calls. Reviewed-by: Tanmay Kathpalia Reviewed-by: Peng Fan Signed-off-by: Julien Stephan Reviewed-by: Quentin Schulz Signed-off-by: Peng Fan

power: regulator: common: use dm_gpio_is_valid helper

2026-01-22T02:01:10Z

Use dm_gpio_is_valid() helper function instead of manually checking the gpio. Reviewed-by: Peng Fan Reviewed-by: Tanmay Kathpalia Reviewed-by: Neil Armstrong Signed-off-by: Julien Stephan Signed-off-by: Peng Fan

power: regulator: common: remove unnecessary debug trace

2026-01-22T02:01:10Z

Drop the ftrace like debug() that checkpatch --strict complains about: WARNING: Unnecessary ftrace-like logging - prefer using ftrace Reviewed-by: Peng Fan Reviewed-by: Tanmay Kathpalia Reviewed-by: Neil Armstrong Signed-off-by: Julien Stephan Signed-off-by: Peng Fan

Revert "power: regulator: Add vin-supply for GPIO and Fixed regulators"

2025-11-06T14:20:53Z

Rockchip boards may depend on a working MMC regulator in SPL to successfully load FIT payload from MMC. Typically, these boards only include the vmmc-supply regulator and not its vin-supply in SPL control FDT. The commit f98d812e5353 ("power: regulator: Add vin-supply for GPIO and Fixed regulators") breaks loading FIT from MMC in SPL on some of these boards due to now requiring the vin-supply to be included in the SPL control FDT. The commit also strangely enables any found vin-supply in regulator_common_of_to_plat() and not when a regulator is enabled or as part of regulator_autoset(). Revert the commit to fix FIT loading in SPL on broken boards. If a board needs to have its vin-supply enabled, two options come to mind: - Add regulator-always-on prop to the regulator in the -u-boot.dtsi for any board. - Implement full support for reference counting of regulators and then update the regulator-uclass to enable any found vin-supply when a regulator is enabled. This reverts commit f98d812e5353408ef77a46bad1f1cdc793ff8a03. Reported-by: Dang Huynh Signed-off-by: Jonas Karlman Reviewed-by: Dragan Simic

power: regulator: Remove duplicate include of regulator_common.h

2025-10-30T02:11:18Z

Remove duplicate #include "regulator_common.h" statements from regulator driver files. Signed-off-by: Tanmay Kathpalia Reviewed-by: Peng Fan Signed-off-by: Peng Fan

power: regulator: Add vin-supply for GPIO and Fixed regulators

2025-09-20T20:46:15Z

Enable the vin-supply when probing the regulator device. Signed-off-by: Ye Li

Restore patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"

2024-05-20T19:35:03Z

As part of bringing the master branch back in to next, we need to allow for all of these changes to exist here. Reported-by: Jonas Karlman Signed-off-by: Tom Rini

Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""

2024-05-19T14:16:36Z

When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman Signed-off-by: Tom Rini

power: Remove and add needed includes

2024-05-07T14:00:56Z

Remove from this driver directory and when needed add missing include files directly. Signed-off-by: Tom Rini