| Message ID | 20191016185945.1962-1-pgwipeout@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | arm64: dts: rockchip: fix sdmmc detection on boot | expand |
Am Mittwoch, 16. Oktober 2019, 20:59:46 CET schrieb Peter Geis: > With working GPIO, during init the GPIO state s reset. > This causes the sdmmc regulator to shut down, preventing detection. > Removing and replacing the card will allow it to be detected, but that should not be necessary. > Fix this by setting the regulator on at boot. > > Signed-off-by: Peter Geis <pgwipeout@gmail.com> applied for 5.5 Thanks Heiko
diff --git a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts index bb40c163b05d..8d553c92182a 100644 --- a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts +++ b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts @@ -35,6 +35,7 @@ gpio = <&gpio0 RK_PD6 GPIO_ACTIVE_LOW>; pinctrl-names = "default"; pinctrl-0 = <&sdmmc0m1_gpio>; + regulator-boot-on; regulator-name = "vcc_sd"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>;
With working GPIO, during init the GPIO state s reset. This causes the sdmmc regulator to shut down, preventing detection. Removing and replacing the card will allow it to be detected, but that should not be necessary. Fix this by setting the regulator on at boot. Signed-off-by: Peter Geis <pgwipeout@gmail.com> --- arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts | 1 + 1 file changed, 1 insertion(+)