arm64: dts: meson-sm1-odroid: fix boot loop after reboot

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

diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi b/arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi
index ed7cd5f..ddb1b34 100644 (file)
--- a/arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi
@@ -48,7 +48,7 @@
                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;