5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
[ Upstream commit e9a9055fdcdc1e5a27cef118c5b4f09cdd2fa28e ]
The "output-enable" property is set on uart1's RTS pin. This is bogus
because the hardware does not actually have a controllable output
buffer. Secondly, the implementation incorrectly treats this property
as a request to switch the pin to GPIO output. This does not fit the
intended semantic of "output-enable" and it does not have any affect
either because the pin is muxed to the UART function, not the GPIO
function.
Drop the property.
Fixes: cd894e274b74 ("arm64: dts: mt8183: Add krane-sku176 board")
Signed-off-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240412075613.1200048-1-wenst@xxxxxxxxxxxx
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
index 22a1c66325c29..5e77f3b1b84be 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
@@ -703,7 +703,6 @@ pins-tx {
};
pins-rts {
pinmux = <PINMUX_GPIO47__FUNC_URTS1>;
- output-enable;
};
pins-cts {
pinmux = <PINMUX_GPIO46__FUNC_UCTS1>;
@@ -722,7 +721,6 @@ pins-tx {
};
pins-rts {
pinmux = <PINMUX_GPIO47__FUNC_URTS1>;
- output-enable;
};
pins-cts {
pinmux = <PINMUX_GPIO46__FUNC_UCTS1>;
--
2.43.0
