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| author | Christian Hewitt <christianshewitt@gmail.com> | 2023-01-27 17:22:17 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-10 11:32:41 +0300 |
| commit | 58dccc65221c6465a35cb6bb2ff41f2b75b367f0 (patch) | |
| tree | 2aefbdc4d83e9c39c0111959bcc74c548f12b33f /arch/arm/boot | |
| parent | b556778f76f975ccf7f008729b5bc2531c58ea95 (diff) | |
| download | linux-58dccc65221c6465a35cb6bb2ff41f2b75b367f0.tar.xz | |
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 <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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/arm/boot')
0 files changed, 0 insertions, 0 deletions