[PATCH 1/2] arm64: dts: exynos: Link DSI panel at port@1 for TM2 board

[Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>]

TM2 board DSI pipeline has input from MIC and output to
s6e3ha2 panel.

The existing pipeline has child nodes of ports, panel and
MIC is remote-endpoint reference of port@0 of ports. 

Adding panel as another child node to DSI is unconventional
as pipeline has ports child. However it can be true if MIC
is added inside port node like this.

dsi {
	compatible = "samsung,exynos5433-mipi-dsi";
	#address-cells = <1>;
	#size-cells = <0>;

	port {
		dsi_to_mic: endpoint {
			remote-endpoint = <&mic_to_dsi>;
		};
	};

	panel@0 {
		compatible = "samsung,s6e3hf2";
                reg = <0>;
                vdd3-supply = <&ldo27_reg>;
                vci-supply = <&ldo28_reg>;
                reset-gpios = <&gpg0 0 GPIO_ACTIVE_LOW>;
                enable-gpios = <&gpf1 5 GPIO_ACTIVE_HIGH>;
	};
};

The above pipeline is proper but it requires the DSI input MIC
pipeline to update.

This patch is trying to add panel at port@1 so-that the entire
pipeline before to panel output is untouched.

Reported-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
---
 arch/arm64/boot/dts/exynos/exynos5433-tm2.dts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts b/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts
index aca01709fd29..e13210c8d7e0 100644
--- a/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts
+++ b/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts
@@ -53,6 +53,16 @@ &cmu_disp {
 };
 
 &dsi {
+	ports {
+		port@1 {
+			reg = <1>;
+
+			dsi_out_panel: endpoint {
+				remote-endpoint = <&dsi_in_panel>;
+			};
+		};
+	};
+
 	panel@0 {
 		compatible = "samsung,s6e3ha2";
 		reg = <0>;
@@ -60,6 +70,12 @@ panel@0 {
 		vci-supply = <&ldo28_reg>;
 		reset-gpios = <&gpg0 0 GPIO_ACTIVE_LOW>;
 		enable-gpios = <&gpf1 5 GPIO_ACTIVE_HIGH>;
+
+		port {
+			dsi_in_panel: endpoint {
+				remote-endpoint = <&dsi_out_panel>;
+			};
+		};
 	};
 };
 
-- 
2.25.1