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ARM: dts: sun6i: hummingbird-a31: Enable display output through VGA bridge 

The Hummingbird A31 board has a VGA DAC which converts RGB output
from the LCD interface to VGA analog signals.

Add nodes for the VGA DAC, its power supply, and enable this part
of the display pipeline.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Chen-Yu Tsai 2016-11-16 23:42:32 +08:00 committed by Maxime Ripard
parent 9bfe7c8d1a
commit 0fa1c17c16
1 changed files with 67 additions and 0 deletions
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67
arch/arm/boot/dts/sun6i-a31-hummingbird.dts
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@ -63,6 +63,60 @@
stdout-path = "serial0:115200n8";
};
vga-connector {
compatible = "vga-connector";
port {
vga_con_in: endpoint {
remote-endpoint = <&vga_dac_out>;
};
};
};
vga-dac {
compatible = "dumb-vga-dac";
vdd-supply = <&reg_vga_3v3>;
#address-cells = <1>;
#size-cells = <0>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
vga_dac_in: endpoint@0 {
reg = <0>;
remote-endpoint = <&tcon0_out_vga>;
};
};
port@1 {
#address-cells = <1>;
#size-cells = <0>;
reg = <1>;
vga_dac_out: endpoint@0 {
reg = <0>;
remote-endpoint = <&vga_con_in>;
};
};
};
};
reg_vga_3v3: vga_3v3_regulator {
compatible = "regulator-fixed";
regulator-name = "vga-3v3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
enable-active-high;
gpio = <&pio 7 25 GPIO_ACTIVE_HIGH>; /* PH25 */
};
wifi_pwrseq: wifi_pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&pio 6 10 GPIO_ACTIVE_LOW>; /* PG10 */
@ -258,6 +312,19 @@
status = "okay";
};
&tcon0 {
pinctrl-names = "default";
pinctrl-0 = <&lcd0_rgb888_pins>;
status = "okay";
};
&tcon0_out {
tcon0_out_vga: endpoint@0 {
reg = <0>;
remote-endpoint = <&vga_dac_in>;
};
};
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins_a>;