diff mbox

[v6,4/5] ARM: dts: da850-lcdk: add the vga-bridge node

Message ID 1481547942-24775-5-git-send-email-bgolaszewski@baylibre.com (mailing list archive)
State New, archived
Headers show

Commit Message

Bartosz Golaszewski Dec. 12, 2016, 1:05 p.m. UTC 
Add the vga-bridge node to the board DT together with corresponding
ports and vga connector. This allows to retrieve the edid info from
the display automatically.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 arch/arm/boot/dts/da850-lcdk.dts | 67 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)

Comments

Tomi Valkeinen Dec. 13, 2016, 8:46 a.m. UTC | #1 
Hi,

On 12/12/16 15:05, Bartosz Golaszewski wrote:

> +&lcdc {
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&lcd_pins>;
> +
> +	ports {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		lcdc_out: port@1 {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			reg = <1>;
> +
> +			lcdc_out_vga: endpoint {
> +				reg = <0>;
> +				remote-endpoint = <&vga_bridge_in>;
> +			};
> +		};
> +	};
> +};
> 

This is not correct. LCDC has just one output, so port@1 doesn't make
sense. It's port@0. But with just one port, you can leave "ports" away.
And you don't need the port's label for anything, if I'm not mistaken. So:

&lcdc {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&lcd_pins>;

	port {
		lcdc_out_vga: endpoint {
			remote-endpoint = <&vga_bridge_in>;
		};
	};
};

 Tomi
Bartosz Golaszewski Dec. 13, 2016, 10:18 a.m. UTC | #2 
2016-12-13 9:46 GMT+01:00 Tomi Valkeinen <tomi.valkeinen@ti.com>:
> Hi,
>
> On 12/12/16 15:05, Bartosz Golaszewski wrote:
>
>> +&lcdc {
>> +     status = "okay";
>> +     pinctrl-names = "default";
>> +     pinctrl-0 = <&lcd_pins>;
>> +
>> +     ports {
>> +             #address-cells = <1>;
>> +             #size-cells = <0>;
>> +
>> +             lcdc_out: port@1 {
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +                     reg = <1>;
>> +
>> +                     lcdc_out_vga: endpoint {
>> +                             reg = <0>;
>> +                             remote-endpoint = <&vga_bridge_in>;
>> +                     };
>> +             };
>> +     };
>> +};
>>
>
> This is not correct. LCDC has just one output, so port@1 doesn't make
> sense. It's port@0. But with just one port, you can leave "ports" away.
> And you don't need the port's label for anything, if I'm not mistaken. So:
>
> &lcdc {
>         status = "okay";
>         pinctrl-names = "default";
>         pinctrl-0 = <&lcd_pins>;
>
>         port {
>                 lcdc_out_vga: endpoint {
>                         remote-endpoint = <&vga_bridge_in>;
>                 };
>         };
> };
>
>  Tomi
>

Right, fixed in v7.

Thanks,
Bartosz
diff mbox

Patch

diff --git a/arch/arm/boot/dts/da850-lcdk.dts b/arch/arm/boot/dts/da850-lcdk.dts
index afcb482..e003111 100644
--- a/arch/arm/boot/dts/da850-lcdk.dts
+++ b/arch/arm/boot/dts/da850-lcdk.dts
@@ -51,6 +51,51 @@ 
 			system-clock-frequency = <24576000>;
 		};
 	};
+
+	vga-bridge {
+		compatible = "ti,ths8135";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0>;
+
+				vga_bridge_in: endpoint {
+					reg = <0>;
+					remote-endpoint = <&lcdc_out_vga>;
+				};
+			};
+
+			port@1 {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <1>;
+
+				vga_bridge_out: endpoint {
+					reg = <0>;
+					remote-endpoint = <&vga_con_in>;
+				};
+			};
+		};
+	};
+
+	vga {
+		compatible = "vga-connector";
+
+		ddc-i2c-bus = <&i2c0>;
+
+		port {
+			vga_con_in: endpoint {
+				remote-endpoint = <&vga_bridge_out>;
+			};
+		};
+	};
 };
 
 &pmx_core {
@@ -236,3 +281,25 @@ 
 &memctrl {
 	status = "okay";
 };
+
+&lcdc {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&lcd_pins>;
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		lcdc_out: port@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+
+			lcdc_out_vga: endpoint {
+				reg = <0>;
+				remote-endpoint = <&vga_bridge_in>;
+			};
+		};
+	};
+};