linux-kernel - [PATCH 10/11] ARM: dts: sun8i-q8-common: Enable display pipeline with RGB LCD panel

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 25 Jan 2019 11:23:13 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Maxime Ripard <maxime.ripard@...tlin.com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     Chen-Yu Tsai <wens@...e.org>, linux-arm-kernel@...ts.infradead.org,
        linux-clk@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 10/11] ARM: dts: sun8i-q8-common: Enable display pipeline with RGB LCD panel

The Q8 design for A23/A33 tablets have an 18-bit RGB LCD panel connected
to the LCD interface on the SoC, the DC1SW output on the PMIC providing
power for the LCD, and PH7 toggling the reset pin for the panel.

This patch adds a device node for the panel, describing the above, and
enables the display pipeline.

The actual model or compatible string for the panel should be added in
the tablet device tree file.

Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 arch/arm/boot/dts/sun8i-q8-common.dtsi | 37 ++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-q8-common.dtsi b/arch/arm/boot/dts/sun8i-q8-common.dtsi
index 719ad769b837..53104f4ccacc 100644
--- a/arch/arm/boot/dts/sun8i-q8-common.dtsi
+++ b/arch/arm/boot/dts/sun8i-q8-common.dtsi
@@ -49,6 +49,26 @@
 		ethernet0 = &sdio_wifi;
 	};
 
+	panel: panel {
+		/* Tablet dts should provide panel compatible */
+		backlight = <&backlight>;
+		enable-gpios = <&pio 7 7 GPIO_ACTIVE_HIGH>; /* PH7 */
+		power-supply = <&reg_dc1sw>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			panel_input: endpoint@0 {
+				reg = <0>;
+				remote-endpoint = <&tcon0_out_lcd>;
+			};
+		};
+	};
+
 	wifi_pwrseq: wifi_pwrseq {
 		compatible = "mmc-pwrseq-simple";
 		/*
@@ -64,6 +84,10 @@
 	};
 };
 
+&de {
+	status = "okay";
+};
+
 &ehci0 {
 	status  = "okay";
 };
@@ -90,6 +114,19 @@
 	};
 };
 
+&tcon0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&lcd_rgb666_pins>;
+	status = "okay";
+};
+
+&tcon0_out {
+	tcon0_out_lcd: endpoint@0 {
+		reg = <0>;
+		remote-endpoint = <&panel_input>;
+	};
+};
+
 &usbphy {
 	usb1_vbus-supply = <&reg_dldo1>;
 };
-- 
2.20.1