From mboxrd@z Thu Jan 1 00:00:00 1970 From: aford173@gmail.com (Adam Ford) Date: Thu, 26 Apr 2018 21:18:54 -0500 Subject: [PATCH V2] DTS: davinci: da850evm: Enable LCD and Backlight Message-ID: <20180427021854.12850-1-aford173@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org When using the board files the LCD works, but not with the DT. This adds enables the original da850-evm to work with the same LCD in device tree mode. Signed-off-by: Adam Ford --- V2: Add regulator and GPIO enable pins. Remove PWM backlight and replace with GPIO arch/arm/boot/dts/da850-evm.dts | 63 +++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts index 11cf3765214f..4c59dab3362e 100644 --- a/arch/arm/boot/dts/da850-evm.dts +++ b/arch/arm/boot/dts/da850-evm.dts @@ -164,6 +164,51 @@ status = "okay"; }; }; + + backlight { + compatible = "gpio-backlight"; + enable-gpios = <&gpio 48 GPIO_ACTIVE_HIGH>; + default-on; + }; + + panel { + compatible = "ti,tilcdc,panel"; + pinctrl-names = "default"; + pinctrl-0 = <&lcd_pins>; + status = "okay"; + enable-gpios = <&gpio 47 GPIO_ACTIVE_HIGH>; + + panel-info { + ac-bias = <255>; + ac-bias-intrpt = <0>; + dma-burst-sz = <16>; + bpp = <16>; + fdd = <0x80>; + sync-edge = <0>; + sync-ctrl = <1>; + raster-order = <0>; + fifo-th = <0>; + }; + + display-timings { + 480x272 { + clock-frequency = <9000000>; + hactive = <480>; + vactive = <272>; + hfront-porch = <3>; + hback-porch = <2>; + hsync-len = <42>; + vback-porch = <3>; + vfront-porch = <4>; + vsync-len = <11>; + hsync-active = <0>; + vsync-active = <0>; + de-active = <1>; + pixelclk-active = <1>; + }; + }; + }; + vbat: fixedregulator0 { compatible = "regulator-fixed"; regulator-name = "vbat"; @@ -172,6 +217,16 @@ regulator-boot-on; }; + lcd_reg: lcdregulator { + compatible = "regulator-fixed"; + regulator-name = "m_lcd_panel_pwr"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + gpio = <&gpio 40 GPIO_ACTIVE_HIGH>; + enable-active-high; + regulator-always-on; + }; + sound { compatible = "simple-audio-card"; simple-audio-card,name = "DA850/OMAP-L138 EVM"; @@ -255,6 +310,14 @@ }; }; +&gpio { + status = "okay"; +}; + +&lcdc { + status = "okay"; +}; + &mcasp0 { #sound-dai-cells = <0>; status = "okay"; -- 2.17.0