From: Lutz Koschorreck theleks@ko-hh.de
[ Upstream commit e6b03375132fefddc55cf700418cf794b3884e0c ]
Since the correct gpio pin is used for enabling tf-io regulator the system did not boot correctly after calling reboot.
[ 36.862443] reboot: Restarting system bl31 reboot reason: 0xd bl31 reboot reason: 0x0 system cmd 1. SM1:BL:511f6b:81ca2f;FEAT:A0F83180:20282000;POC:B;RCY:0;SPINOR:0;CHK:1F;EMMC:800;NAND:81;SD?:0;SD:0;READ:0;0.0;CHK:0; bl2_stage_init 0x01 bl2_stage_init 0x81 hw id: SM1:BL:511f6b:81ca2f;FEAT:A0F83180:20282000;POC:B;RCY:0;SPINOR:0;CHK:1F;EMMC:800;NAND:81;SD?:0;SD:400;USB:8;LOOP:1;...
Setting the gpio to open drain solves the issue.
Fixes: 1f80a5cf74a6 ("arm64: dts: meson-sm1-odroid: add missing enable gpio and supply for tf_io regulator") Signed-off-by: Lutz Koschorreck theleks@ko-hh.de Reviewed-by: Neil Armstrong narmstrong@baylibre.com [narmstrong: reduced serial log & removed invalid character in commit message] Signed-off-by: Neil Armstrong narmstrong@baylibre.com Link: https://lore.kernel.org/r/20220128193150.GA1304381@odroid-VirtualBox Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi b/arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi index 328f4adfaaa9d..76ad052fbf0c9 100644 --- a/arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi @@ -48,7 +48,7 @@ tf_io: gpio-regulator-tf_io { regulator-max-microvolt = <3300000>; vin-supply = <&vcc_5v>;
- enable-gpio = <&gpio_ao GPIOE_2 GPIO_ACTIVE_HIGH>; + enable-gpio = <&gpio_ao GPIOE_2 GPIO_OPEN_DRAIN>; enable-active-high; regulator-always-on;