diff options
| author | Icenowy Zheng <icenowy@aosc.io> | 2020-07-02 10:14:31 +0200 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2020-07-03 14:13:44 +0200 |
| commit | a6a22f82c90dab8966fc07bd7e798a0680803995 (patch) | |
| tree | 5e91e5dc9893f8569fdcfe5c6c392575081bebcc | |
| parent | 21a827bf1c9a4ce67938251f3211e5c13eef51bc (diff) | |
arm64: dts: sun50i-a64-pinephone: Enable LCD support on PinePhone
PinePhone uses PWM backlight and a XBD599 LCD panel over DSI for
display.
Backlight levels curve was optimized by Martijn Braam using a
lux meter.
Add its device nodes.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Martijn Braam <martijn@brixit.nl>
Signed-off-by: Ondrej Jirman <megous@megous.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20200702081432.1727696-2-megous@megous.com
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
| -rw-r--r-- | arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts | 19 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi | 33 |
2 files changed, 52 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts index 06a775c41664..3e99a87e9ce5 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts @@ -9,3 +9,22 @@ model = "Pine64 PinePhone Braveheart (1.1)"; compatible = "pine64,pinephone-1.1", "allwinner,sun50i-a64"; }; + +&backlight { + power-supply = <®_ldo_io0>; + /* + * PWM backlight circuit on this PinePhone revision was changed since + * 1.0, and the lowest PWM duty cycle that doesn't lead to backlight + * being off is around 20%. Duty cycle for the lowest brightness level + * also varries quite a bit between individual boards, so the lowest + * value here was chosen as a safe default. + */ + brightness-levels = < + 774 793 814 842 + 882 935 1003 1088 + 1192 1316 1462 1633 + 1830 2054 2309 2596 + 2916 3271 3664 4096>; + num-interpolated-steps = <50>; + default-brightness-level = <400>; +}; diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi index cefda145c3c9..a89425ad3727 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi @@ -16,6 +16,13 @@ serial0 = &uart0; }; + backlight: backlight { + compatible = "pwm-backlight"; + pwms = <&r_pwm 0 50000 PWM_POLARITY_INVERTED>; + enable-gpios = <&pio 7 10 GPIO_ACTIVE_HIGH>; /* PH10 */ + /* Backlight configuration differs per PinePhone revision. */ + }; + chosen { stdout-path = "serial0:115200n8"; }; @@ -84,6 +91,28 @@ status = "okay"; }; +&de { + status = "okay"; +}; + +&dphy { + status = "okay"; +}; + +&dsi { + vcc-dsi-supply = <®_dldo1>; + status = "okay"; + + panel@0 { + compatible = "xingbangda,xbd599"; + reg = <0>; + reset-gpios = <&pio 3 23 GPIO_ACTIVE_LOW>; /* PD23 */ + iovcc-supply = <®_dldo2>; + vcc-supply = <®_ldo_io0>; + backlight = <&backlight>; + }; +}; + &ehci0 { status = "okay"; }; @@ -188,6 +217,10 @@ */ }; +&r_pwm { + status = "okay"; +}; + &r_rsb { status = "okay"; |