[PATCH v2 1/2] ARM: dts: imx51-babbage: Fix the DVI output description

[PATCH v2 1/2] ARM: dts: imx51-babbage: Fix the DVI output description

[Fabio Estevam]

imx51-babbage has a TFP410 chip that receives 24-bit RGB parallel
input and convert it to DVI.

Fix the device tree description to reflect the real hardware.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
---
Changes since v1:
- Use "dvi-connector" compatible

 arch/arm/boot/dts/imx51-babbage.dts | 64 ++++++++++++++++++++++-------
 1 file changed, 49 insertions(+), 15 deletions(-)

diff --git a/arch/arm/boot/dts/imx51-babbage.dts b/arch/arm/boot/dts/imx51-babbage.dts
index ed6a3ce874b2..552196d8a60a 100644
--- a/arch/arm/boot/dts/imx51-babbage.dts
+++ b/arch/arm/boot/dts/imx51-babbage.dts
@@ -58,29 +58,27 @@
 
 	display1: disp1 {
 		compatible = "fsl,imx-parallel-display";
+		#address-cells = <1>;
+		#size-cells = <0>;
 		interface-pix-fmt = "rgb24";
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_ipu_disp1>;
-		display-timings {
-			native-mode = <&timing0>;
-			timing0: dvi {
-				clock-frequency = <65000000>;
-				hactive = <1024>;
-				vactive = <768>;
-				hback-porch = <220>;
-				hfront-porch = <40>;
-				vback-porch = <21>;
-				vfront-porch = <7>;
-				hsync-len = <60>;
-				vsync-len = <10>;
-			};
-		};
 
-		port {
+		port@0 {
+		reg = <0>;
+
 			display0_in: endpoint {
 				remote-endpoint = <&ipu_di0_disp1>;
 			};
 		};
+
+		port@1 {
+			reg = <1>;
+
+			parallel_display_out: endpoint {
+				remote-endpoint = <&tfp410_in>;
+			};
+		};
 	};
 
 	display2: disp2 {
@@ -115,6 +113,42 @@
 		};
 	};
 
+	dvi-connector {
+		compatible = "dvi-connector";
+		digital;
+
+		port {
+			dvi_connector_in: endpoint {
+				remote-endpoint = <&tfp410_out>;
+			};
+		};
+	};
+
+	dvi-encoder {
+		compatible = "ti,tfp410";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				tfp410_in: endpoint {
+					remote-endpoint = <&parallel_display_out>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+
+				tfp410_out: endpoint {
+					remote-endpoint = <&dvi_connector_in>;
+				};
+			};
+		};
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
 		pinctrl-names = "default";
-- 
2.17.1


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[PATCH v2 2/2] ARM: imx_v6_v7_defconfig: Select the TFP410 driver

[Fabio Estevam]

Some boards like imx51-babbage, imx53-cx9020 and imx6q-utilite-pro
have a TFP410 DVI bridge chip.

Select its driver by default.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
---
Changes since v1:
- None

 arch/arm/configs/imx_v6_v7_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig
index d5f31e436032..e1a219573966 100644
--- a/arch/arm/configs/imx_v6_v7_defconfig
+++ b/arch/arm/configs/imx_v6_v7_defconfig
@@ -283,6 +283,7 @@ CONFIG_DRM_MSM=y
 CONFIG_DRM_PANEL_LVDS=y
 CONFIG_DRM_PANEL_SIMPLE=y
 CONFIG_DRM_PANEL_SEIKO_43WVF1G=y
+CONFIG_DRM_TI_TFP410=y
 CONFIG_DRM_DW_HDMI_AHB_AUDIO=m
 CONFIG_DRM_DW_HDMI_CEC=y
 CONFIG_DRM_IMX=y
-- 
2.17.1


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Re: [PATCH v2 1/2] ARM: dts: imx51-babbage: Fix the DVI output description

[Shawn Guo]

On Fri, Dec 13, 2019 at 10:58:37AM -0300, Fabio Estevam wrote:
> imx51-babbage has a TFP410 chip that receives 24-bit RGB parallel
> input and convert it to DVI.
> 
> Fix the device tree description to reflect the real hardware.
> 
> Signed-off-by: Fabio Estevam <festevam@gmail.com>

Applied both, thanks.

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