On Tue, Oct 25, 2016 at 4:13 PM, Archit Taneja [off-list ref] wrote:

On 10/20/2016 09:13 AM, Chen-Yu Tsai wrote:

quoted

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

Enable this part of the display pipeline.

I couldn't find the enable-gpios binding for the bridge that you
introduced in the previous patch. Is that intentional?

Error on my part. Thanks for spotting that.

ChenYu

Thanks,
Archit

quoted

Signed-off-by: Chen-Yu Tsai <redacted>
---
 arch/arm/boot/dts/sun6i-a31-hummingbird.dts | 56
+++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/arch/arm/boot/dts/sun6i-a31-hummingbird.dts

b/arch/arm/boot/dts/sun6i-a31-hummingbird.dts
index 9a74637f677f..05a49b2147f1 100644

--- a/arch/arm/boot/dts/sun6i-a31-hummingbird.dts
+++ b/arch/arm/boot/dts/sun6i-a31-hummingbird.dts

@@ -63,6 +63,49 @@
                stdout-path = "serial0:115200n8";
        };

+       bridge {
+               compatible = "dumb-vga-dac";
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port at 0 {
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               reg = <0>;
+
+                               vga_bridge_in: endpoint at 0 {
+                                       reg = <0>;
+                                       remote-endpoint =

<&tcon0_out_vga>;
+                               };
+                       };
+
+                       port at 1 {
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               reg = <1>;
+
+                               vga_bridge_out: endpoint at 0 {
+                                       reg = <0>;
+                                       remote-endpoint = <&vga_con_in>;
+                               };
+                       };
+               };
+       };
+
+       vga {
+               compatible = "vga-connector";
+
+               port {
+                       vga_con_in: endpoint {
+                               remote-endpoint = <&vga_bridge_out>;
+                       };
+               };
+       };
+
        wifi_pwrseq: wifi_pwrseq {
                compatible = "mmc-pwrseq-simple";
                reset-gpios = <&pio 6 10 GPIO_ACTIVE_LOW>; /* PG10 */

@@ -245,6 +288,19 @@
        status = "okay";
 };

+&tcon0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&lcd0_rgb888_pins>;
+       status = "okay";
+};
+
+&tcon0_out {
+       tcon0_out_vga: endpoint at 0 {
+               reg = <0>;
+               remote-endpoint = <&vga_bridge_in>;
+       };
+};
+
 &uart0 {
        pinctrl-names = "default";
        pinctrl-0 = <&uart0_pins_a>;

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