[RFC PATCH v2 2/3] arm64: dts: imx8mm: Add MIPI DSI pipeline

Jagan Teki jagan at amarulasolutions.com
Thu Nov 11 02:14:55 PST 2021


Add MIPI DSI pipeline for i.MX8MM.

Video pipeline start from eLCDIF to MIPI DSI and respective
Panel or Bridge on the backend side.

Add support for it.

Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>
---
 arch/arm64/boot/dts/freescale/imx8mm.dtsi | 55 +++++++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index caeb93313413..eddf3a467fd2 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -188,6 +188,12 @@ clk_ext4: clock-ext4 {
 		clock-output-names = "clk_ext4";
 	};
 
+	mipi_phy: mipi-video-phy {
+		compatible = "fsl,imx8mm-mipi-video-phy";
+		syscon = <&disp_blk_ctrl>;
+		#phy-cells = <1>;
+	};
+
 	psci {
 		compatible = "arm,psci-1.0";
 		method = "smc";
@@ -1085,6 +1091,55 @@ lcdif: lcdif at 32e00000 {
 				interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
 				power-domains = <&disp_blk_ctrl IMX8MM_DISPBLK_PD_LCDIF>;
 				status = "disabled";
+
+				port {
+					lcdif_out_dsi: endpoint {
+						remote-endpoint = <&dsi_in_lcdif>;
+					};
+				};
+			};
+
+			dsi: dsi at 32e10000 {
+				compatible = "fsl,imx8mm-mipi-dsim";
+				reg = <0x32e10000 0x400>;
+				clocks = <&clk IMX8MM_CLK_DSI_CORE>,
+					 <&clk IMX8MM_CLK_DSI_PHY_REF>;
+				clock-names = "bus_clk", "sclk_mipi";
+				assigned-clocks = <&clk IMX8MM_CLK_DSI_CORE>,
+						  <&clk IMX8MM_VIDEO_PLL1_OUT>,
+						  <&clk IMX8MM_CLK_DSI_PHY_REF>;
+				assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_266M>,
+							 <&clk IMX8MM_VIDEO_PLL1_BYPASS>,
+							 <&clk IMX8MM_VIDEO_PLL1_OUT>;
+				assigned-clock-rates = <266000000>, <594000000>, <27000000>;
+				interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
+				phys = <&mipi_phy 0>;
+				phy-names = "dsim";
+				power-domains = <&disp_blk_ctrl IMX8MM_DISPBLK_PD_MIPI_DSI>;
+				samsung,burst-clock-frequency = <891000000>;
+				samsung,esc-clock-frequency = <54000000>;
+				samsung,pll-clock-frequency = <27000000>;
+				status = "disabled";
+
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port at 0 {
+						reg = <0>;
+						#address-cells = <1>;
+						#size-cells = <0>;
+
+						dsi_in_lcdif: endpoint at 0 {
+							reg = <0>;
+							remote-endpoint = <&lcdif_out_dsi>;
+						};
+					};
+
+					port at 1 {
+						reg = <1>;
+					};
+				};
 			};
 
 			disp_blk_ctrl: blk-ctrl at 32e28000 {
-- 
2.25.1




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