diff options
Diffstat (limited to 'SOURCES/0012-arm64-dts-sun50i-a64-pinephone-Enable-LCD-support-on.patch')
| -rw-r--r-- | SOURCES/0012-arm64-dts-sun50i-a64-pinephone-Enable-LCD-support-on.patch | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/SOURCES/0012-arm64-dts-sun50i-a64-pinephone-Enable-LCD-support-on.patch b/SOURCES/0012-arm64-dts-sun50i-a64-pinephone-Enable-LCD-support-on.patch new file mode 100644 index 0000000..0c8ca99 --- /dev/null +++ b/SOURCES/0012-arm64-dts-sun50i-a64-pinephone-Enable-LCD-support-on.patch @@ -0,0 +1,112 @@ +From 3ac5eb0c8bc2da9e81e04fc6106a79b476ec9219 Mon Sep 17 00:00:00 2001 +From: Icenowy Zheng <icenowy@aosc.io> +Date: Fri, 26 Jun 2020 02:56:00 +0200 +Subject: [PATCH 12/13] 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> +--- + .../allwinner/sun50i-a64-pinephone-1.1.dts | 19 ++++++++++ + .../dts/allwinner/sun50i-a64-pinephone.dtsi | 35 +++++++++++++++++++ + 2 files changed, 54 insertions(+) + +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 06a775c41664b..3e99a87e9ce52 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 cefda145c3c9d..85a7aa5efd326 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 @@ aliases { + 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 +91,30 @@ &dai { + status = "okay"; + }; + ++&de { ++ status = "okay"; ++}; ++ ++&dphy { ++ status = "okay"; ++}; ++ ++&dsi { ++ vcc-dsi-supply = <®_dldo1>; ++ #address-cells = <1>; ++ #size-cells = <0>; ++ 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 +219,10 @@ &r_pio { + */ + }; + ++&r_pwm { ++ status = "okay"; ++}; ++ + &r_rsb { + status = "okay"; + +-- +2.26.2 + |