roc-rk3328-cc board has vcc_sdio regulator controlled by a special output only gpio pin. This special pin can now be reference as <&grf_gpio 0> via gpio-syscon driver, as mentioned in below commit. commit <99165b93dafe4f2a821b5dae106f2ef6b4ceff7e> "arm64: dts: rockchip: add sdmmc UHS support for roc-rk3328-cc" So, enable bydefault on the defconfig. Cc: Levin Du <djw@xxxxxxxxxxxxx> Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx> --- arch/arm64/configs/defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 0f212889c931..0a38f0833cf7 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -433,6 +433,7 @@ CONFIG_GPIO_MAX732X=y CONFIG_GPIO_PCA953X=y CONFIG_GPIO_PCA953X_IRQ=y CONFIG_GPIO_MAX77620=y +CONFIG_GPIO_SYSCON=y CONFIG_POWER_AVS=y CONFIG_QCOM_CPR=y CONFIG_ROCKCHIP_IODOMAIN=y -- 2.17.1 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-rockchip