u-boot.git/drivers/power, branch v2023.10

power: regulator: rk8xx: Add 500us delay after LDO regulator is enabled

2023-07-31T12:33:18Z

A quick power cycle of a LDO regulator during dw-mmc signal voltage change has shown that SD-card does not always get recognized. Linux driver use an enable_time of 400us for LDO regulators. Apply a 500us delay when a LDO regulator is enabled to fix possible issues. Fixes: 94afc1cb466a ("power: regulator: rk8xx: update the driver for rk808 and rk818") Signed-off-by: Jonas Karlman Reviewed-by: elaine.zhang Reviewed-by: Kever Yang

regulator: fixed: Add support for gpios prop

2023-07-28T10:45:03Z

The commit 12df2c182ccb ("regulator: dt-bindings: fixed-regulator: allow gpios property") in linux v6.3-rc1 added support for use of either a gpios or gpio prop with a fixed-regulator. This adds support for the new gpios prop to the fixed-regulator driver. gpios prop is used by vcc3v3-pcie-regulator on Radxa ROCK 3 Model A. Signed-off-by: Jonas Karlman Reviewed-by: Kever Yang

imx: mach: correct SCU API usage

2023-07-13T09:29:40Z

The return value is int type, not sc_err_t(u8), correct the usage. Signed-off-by: Peng Fan

power: imx8m-power-domain: Add delay to align with kernel driver

2023-07-11T12:40:03Z

In the imx8m power domain kernel driver, there is an extra udelay(5) prior to requesting the domain to power up: https://github.com/torvalds/linux/blob/v6.3/drivers/soc/imx/gpcv2.c#L347-L375 Haven't observed any issues due to the lack of this delay in U-Boot yet, but better to align it with the kernel driver implementation. Signed-off-by: Fabio Estevam Reviewed-by: Marek Vasut

regulator: handle different error codes in regulator_set_enable_if_allowed

2023-07-04T02:21:12Z

The regulator core can return different codes which are not considered a real error for this function. Return success in such cases. Signed-off-by: Eugen Hristev Reviewed-by: Simon Glass Reviewed-by: Patrice Chotard

regulator: rename dev_pdata to plat

2023-07-04T02:21:07Z

Simplify the subsystem by renaming `dev_pdata` to just `plat`. No functional change, just trivial renaming. Suggested-by: Simon Glass Signed-off-by: Eugen Hristev Reviewed-by: Simon Glass Reviewed-by: Patrice Chotard

regulator: implement basic reference counter

2023-07-04T02:20:56Z

Some devices share a regulator supply, when the first one will request regulator disable, the second device will have it's supply cut off before graciously shutting down. Hence there will be timeouts and other failed operations. Implement a reference counter mechanism similar with what is done in Linux, to keep track of enable and disable requests, and only disable the regulator when the last of the consumers has requested shutdown. Signed-off-by: Eugen Hristev Reviewed-by: Simon Glass Reviewed-by: Patrice Chotard

drivers: meson: introduce secure power controller driver

2023-06-28T08:05:34Z

This patch adds Power controller driver support for Amlogic A1 family using secure monitor calls. The power domains register only can access in secure world. Signed-off-by: Alexey Romanov Reviewed-by: Neil Armstrong Link: https://lore.kernel.org/r/20230531093156.29240-4-avromanov@sberdevices.ru Signed-off-by: Neil Armstrong

pmic: stpmic1: support new prefix node name for regulator

2023-06-16T09:16:31Z

The '_' character is discouraged in the node name, this patch adds the new prefix of regulator subnode, with the '-' character, in STM32MP1 driver to support the new naming rule in Linux kernel device trees. It is a preliminary patch before Linux device tree synchronization for STMicroelectronics boards. Signed-off-by: Patrick Delaunay Reviewed-by: Patrice Chotard

power: zynqmp: Mask node already configured error

2023-06-12T11:25:01Z

Do not return an error (ENODEV) from the request function if the node is already configured. Signed-off-by: Stefan Herbrechtsmeier Link: https://lore.kernel.org/r/20230523124215.30915-3-stefan.herbrechtsmeier-oss@weidmueller.com Signed-off-by: Michal Simek