| Message ID | 20221004213503.848262-3-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/omap3-n950.dts b/arch/arm/boot/dts/omap3-n950.dts index b2f480022ff6..fa133612bcc2 100644 --- a/arch/arm/boot/dts/omap3-n950.dts +++ b/arch/arm/boot/dts/omap3-n950.dts @@ -235,7 +235,7 @@ lcd0: panel@0 { vpnl-supply = <&vmmc2>; vddi-supply = <&vio>; - reset-gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>; /* 87 */ + reset-gpios = <&gpio3 23 GPIO_ACTIVE_LOW>; /* 87 */ te-gpios = <&gpio2 30 GPIO_ACTIVE_HIGH>; /* 62 */ width-mm = <49>; /* 48.960 mm */
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/omap3-n950.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)