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| author | Christian Hewitt <christianshewitt@gmail.com> | 2023-01-27 17:22:17 +0300 |
|---|---|---|
| committer | Neil Armstrong <neil.armstrong@linaro.org> | 2023-01-27 19:56:10 +0300 |
| commit | 856968e066bd77b113965f1a355ec7401edff65f (patch) | |
| tree | 505f16c9b51fc45a1e8147d2bdf9932b2505e40a /arch/arm64/boot/dts/amlogic/meson-sm1-bananapi-m5.dts | |
| parent | ce43ea00b927805c1fd0450ccc9b4b6069e292c5 (diff) | |
| download | linux-856968e066bd77b113965f1a355ec7401edff65f.tar.xz | |
arm64: dts: meson: bananapi-m5: switch VDDIO_C pin to OPEN_DRAIN
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 <neil.armstrong@linaro.org>
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230127142221.3718184-2-christianshewitt@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Diffstat (limited to 'arch/arm64/boot/dts/amlogic/meson-sm1-bananapi-m5.dts')
| -rw-r--r-- | arch/arm64/boot/dts/amlogic/meson-sm1-bananapi-m5.dts | 2 |
1 files changed, 1 insertions, 1 deletions
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 bfc500df9dcb..b5866cb996c0 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; |