[PATCH v2 7/8] ARM: dts: imx6qdl-apalis: add VGA support

[Stefan Agner]

The Apalis iMX6 modules use a simple DAC using resistor ladders
to convert parallel RGB to VGA. Add support for this output using
the dumb VGA driver.

Signed-off-by: Stefan Agner <ste...@agner.ch>
---
 arch/arm/boot/dts/imx6q-apalis-eval.dts | 28 +++++++++++++
 arch/arm/boot/dts/imx6qdl-apalis.dtsi   | 52 +++++++++++++++++++++++++
 2 files changed, 80 insertions(+)

diff --git a/arch/arm/boot/dts/imx6q-apalis-eval.dts 
b/arch/arm/boot/dts/imx6q-apalis-eval.dts
index 707ac9a46115..ae07b3a105ef 100644
--- a/arch/arm/boot/dts/imx6q-apalis-eval.dts
+++ b/arch/arm/boot/dts/imx6q-apalis-eval.dts
@@ -140,6 +140,16 @@
                regulator-max-microvolt = <3300000>;
                regulator-always-on;
        };
+
+       vga {
+               compatible = "vga-connector";
+
+               port {
+                       vga_con_in: endpoint {
+                               remote-endpoint = <&vga_bridge_out>;
+                       };
+               };
+       };
 };
 
 &backlight {
@@ -281,6 +291,24 @@
        status = "okay";
 };
 
+&vgabridge {
+       status = "okay";
+
+       ports {
+               port@1 {
+                       reg = <1>;
+
+                       vga_bridge_out: endpoint {
+                               remote-endpoint = <&vga_con_in>;
+                       };
+               };
+       };
+};
+
+&vgadisplay {
+       status = "okay";
+};
+
 &iomuxc {
        /*
         * Mux the Apalis GPIOs
diff --git a/arch/arm/boot/dts/imx6qdl-apalis.dtsi 
b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
index 05f07ea3e8c8..e8d0407e3e18 100644
--- a/arch/arm/boot/dts/imx6qdl-apalis.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
@@ -138,6 +138,54 @@
                spdif-out;
                status = "disabled";
        };
+
+       vgabridge: bridge {
+               compatible = "dumb-vga-dac";
+               #address-cells = <1>;
+               #size-cells = <0>;
+               de-active = <0>;
+               status = "disabled";
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@0 {
+                               reg = <0>;
+
+                               vga_bridge_in: endpoint {
+                                       remote-endpoint = <&vga_display_out>;
+                               };
+                       };
+               };
+       };
+
+       vgadisplay: display@di0 {
+               compatible = "fsl,imx-parallel-display";
+               #address-cells = <1>;
+               #size-cells = <0>;
+               interface-pix-fmt = "rgb565";
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_ipu2_vdac>;
+               status = "disabled";
+
+               port@0 {
+                       reg = <0>;
+
+                       vga_display_in: endpoint {
+                               remote-endpoint = <&ipu2_di0_disp0>;
+                       };
+               };
+
+               port@1 {
+                       reg = <1>;
+
+                       vga_display_out: endpoint {
+                               remote-endpoint = <&vga_bridge_in>;
+                       };
+               };
+       };
+
 };
 
 &audmux {
@@ -373,6 +421,10 @@
        status = "disabled";
 };
 
+&ipu2_di0_disp0 {
+       remote-endpoint = <&vga_display_in>;
+};
+
 &pwm1 {
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_pwm1>;
-- 
2.18.0

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