From 58dccc65221c6465a35cb6bb2ff41f2b75b367f0 Mon Sep 17 00:00:00 2001 From: Christian Hewitt Date: Fri, 27 Jan 2023 14:22:17 +0000 Subject: [PATCH] arm64: dts: meson: bananapi-m5: switch VDDIO_C pin to OPEN_DRAIN [ Upstream commit 856968e066bd77b113965f1a355ec7401edff65f ] For proper warm (re)boot from SD card the BPI-M5 board requires TFLASH_VDD_EN and VDDIO_C pins to be switched to high impedance mode. This can be achieved using OPEN_DRAIN instead of ACTIVE_HIGH to leave the GPIO pins in input mode and retain high state (pin has the pull-up). This change is inspired by meson-sm1-odroid.dtsi where OPEN_DRAIN has been used to resolve similar problems with the Odroid C4 board (TF_IO in the C4 dts is the equivalent regulator). Fixes: 976e920183e4 ("arm64: dts: meson-sm1: add Banana PI BPI-M5 board dts") Suggested-by: Neil Armstrong Signed-off-by: Christian Hewitt Reviewed-by: Neil Armstrong Link: https://lore.kernel.org/r/20230127142221.3718184-2-christianshewitt@gmail.com Signed-off-by: Neil Armstrong Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/amlogic/meson-sm1-bananapi-m5.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-bananapi-m5.dts b/arch/arm64/boot/dts/amlogic/meson-sm1-bananapi-m5.dts index 6d0db66..38ebe98 100644 --- a/arch/arm64/boot/dts/amlogic/meson-sm1-bananapi-m5.dts +++ b/arch/arm64/boot/dts/amlogic/meson-sm1-bananapi-m5.dts @@ -123,7 +123,7 @@ regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; - enable-gpio = <&gpio_ao GPIOE_2 GPIO_ACTIVE_HIGH>; + enable-gpio = <&gpio_ao GPIOE_2 GPIO_OPEN_DRAIN>; enable-active-high; regulator-always-on; -- 2.7.4