| Message ID | 20221004213503.848262-4-dmitry.torokhov@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | [1/4] ARM: dts: omap3-n900: fix LCD reset line polarity | expand |
diff --git a/arch/arm/boot/dts/motorola-mapphone-common.dtsi b/arch/arm/boot/dts/motorola-mapphone-common.dtsi index c7a1f3ffc48c..beffa1cf08b2 100644 --- a/arch/arm/boot/dts/motorola-mapphone-common.dtsi +++ b/arch/arm/boot/dts/motorola-mapphone-common.dtsi @@ -212,7 +212,7 @@ lcd0: panel@0 { reg = <0>; label = "lcd0"; vddi-supply = <&lcd_regulator>; - reset-gpios = <&gpio4 5 GPIO_ACTIVE_HIGH>; /* gpio101 */ + reset-gpios = <&gpio4 5 GPIO_ACTIVE_LOW>; /* gpio101 */ backlight = <&backlight>;
The LCD driver (panel-dsi-cm), when performing reset, starts with line set high, then drives it low, holds it there for a moment, and releases it back to high. This means that the reset line should be described as "active low" in DTS. This will be important when the driver is converted to gpiod API which respects the polarity declared in DTS. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> --- arch/arm/boot/dts/motorola-mapphone-common.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)