This series port the IO-domain driver for RK3568 from linux. It is necessary for the IO-domain setting of the SoC to match the voltage supplied by the regulators.
The driver auto probe after bind and configures IO-domain based on the voltage reported by the regulators. This fixes issues observed while working on the GMAC driver for RK3568 devices. The IO-domain setting default to 3v3, however some vccio domains may be supplied by 1v8.
This series also add a minimal generic RK356x board that only enable eMMC and SD-card node and keep the IO-domain driver disabled. The generic board can be used to boot from eMMC/SD-card on boards that follow reference board design.
Changes in v2: - Include patch to return correct voltage for switchout converters - Simplify code that return correct voltage for buck converters - Add a minimal generic RK356x board with IO-domain driver disabled. - Collect r-b tags
Patch 1 adds protection so that regulator autoset only happens one time. Patch 2-3 fixes rk8xx buck/switchout regulator driver to report correct voltage. Patch 4 adds the IO-domain driver. Patch 5 adds the minimal generic RK3566/RK3568 board.
This series can also be found at [1]
[1] https://github.com/Kwiboo/u-boot-rockchip/commits/rk3568-io-domain-v2
Jonas Karlman (3): power: regulator: Only run autoset once for each regulator rockchip: Port IO-domain driver for RK3568 from linux rockchip: board: Add minimal generic RK3566/RK3568 board
Joseph Chen (1): regulator: rk8xx: Return correct voltage for buck converters
shengfei Xu (1): regulator: rk8xx: Return correct voltage for switchout converters
arch/arm/dts/rk3568-generic-u-boot.dtsi | 14 ++ arch/arm/dts/rk3568-generic.dts | 38 +++++ board/rockchip/evb_rk3568/MAINTAINERS | 7 + configs/generic-rk3568_defconfig | 64 ++++++++ doc/board/rockchip/rockchip.rst | 1 + drivers/misc/Kconfig | 9 ++ drivers/misc/Makefile | 1 + drivers/misc/rockchip-io-domain.c | 167 +++++++++++++++++++++ drivers/power/regulator/regulator-uclass.c | 18 ++- drivers/power/regulator/rk8xx.c | 95 +++++++----- include/power/regulator.h | 1 + 11 files changed, 375 insertions(+), 40 deletions(-) create mode 100644 arch/arm/dts/rk3568-generic-u-boot.dtsi create mode 100644 arch/arm/dts/rk3568-generic.dts create mode 100644 configs/generic-rk3568_defconfig create mode 100644 drivers/misc/rockchip-io-domain.c