From: Levin Du <djw@xxxxxxxxxxxxx> Hi all, this is an attemp to add sdmmc UHS support to the ROC-RK3328-CC board. This patch series adds a new compatible `rockchip,gpio-syscon` to the gpio-syscon driver for general Rockchip SoC usage.. A new gpio controller named `gpio_syscon10` is defined in rk3328.dtsi so that all rk3328 boards has access to it. The ROC-RK3328-CC board use the new gpio <&gpio_syscon10 1> in gpio-regulator to control the signal voltage of the sdmmc. It is essential for UHS support which requires 1.8V signal voltage. Many thanks to Heiko's great advice! Changes in v1: - Refactured for general gpio-syscon usage for Rockchip SoCs. - Add doc rockchip,gpio-syscon.txt . - Split into small patches. - Add gpio-syscon10 to rk3328 for general use. - Sort dts properties in sdmmc node. Heiko Stuebner (1): gpio: syscon: allow fetching syscon from parent node Levin Du (4): gpio: syscon: Add gpio-syscon for rockchip arm64: dts: rockchip: Add gpio-syscon10 to rk3328 arm64: dts: rockchip: Add io-domain to roc-rk3328-cc arm64: dts: rockchip: Add sdmmc UHS support for roc-rk3328-cc .../bindings/gpio/rockchip,gpio-syscon.txt | 41 ++++++++++++++++++++++ arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts | 30 ++++++++++++++++ arch/arm64/boot/dts/rockchip/rk3328.dtsi | 6 ++++ drivers/gpio/gpio-syscon.c | 32 +++++++++++++++++ 4 files changed, 109 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/rockchip,gpio-syscon.txt -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
