Re: [PATCH v12 00/18] drm: Add Samsung MIPI DSIM bridge

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On 1/27/23 12:04, Jagan Teki wrote:
On Fri, Jan 27, 2023 at 4:26 PM Rasmus Villemoes
<rasmus.villemoes@xxxxxxxxx> wrote:

On 27/01/2023 11.39, Jagan Teki wrote:
On Fri, Jan 27, 2023 at 4:03 PM Rasmus Villemoes
<rasmus.villemoes@xxxxxxxxx> wrote:

Hi Jagan and others

I'm trying to test this series on our imx8mp-based boards, which has the
mipi-dsi connected to a ti,sn65dsi86 bridge (in turn connected to a
full-size DP-connector). But I don't know how to add the proper nodes to
imx8mp.dtsi. My current, obviously incomplete, attempt is

Please use this repo - https://github.com/openedev/kernel/tree/imx8mm-dsi-v12

Thanks, but that's exactly what I'm doing, and I don't see any
modification of imx8mp.dtsi in that branch. I'm basically looking for
help to do the equivalent of

   88775338cd58 - arm64: dts: imx8mm: Add MIPI DSI pipeline
   f964f67dd6ee - arm64: dts: imx8mm: Add eLCDIF node support

for imx8mp in order to test those patches on our boards (we have two
variants).

Marek, any help here, thanks.

Try attached patch.
From f7e85ef14c52e84e495ab85fd07263e5b909bf7f Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@xxxxxxx>
Date: Sun, 27 Feb 2022 02:20:05 +0100
Subject: [PATCH] arm64: dts: imx8mp: Add display pipeline components
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Add DSIM, DSIM PHY, LCDIF1 and mediamix blk_ctl nodes for iMX8MP.
The blk_ctl is required to enable LCDIF clock and DSIM clock, and
handle DSIM resets.

Upstream-Status: Pending
Signed-off-by: Marek Vasut <marex@xxxxxxx>
Cc: Abel Vesa <abel.vesa@xxxxxxx>
Cc: Dong Aisheng <aisheng.dong@xxxxxxx>
Cc: Fabio Estevam <festevam@xxxxxxxxx>
Cc: Guido Günther <agx@xxxxxxxxxxx>
Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
Cc: NXP Linux Team <linux-imx@xxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
---
 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 144 +++++++++++++++++++++-
 1 file changed, 139 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index bb916a0948a8f..aef39d62b47d7 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -533,6 +533,7 @@ pgc {
 					pgc_mipi_phy1: power-domain@0 {
 						#power-domain-cells = <0>;
 						reg = <IMX8MP_POWER_DOMAIN_MIPI_PHY1>;
+						power-domains = <&pgc_mediamix>;
 					};
 
 					pgc_pcie_phy: power-domain@1 {
@@ -587,6 +588,7 @@ pgc_mediamix: power-domain@10 {
 					pgc_mipi_phy2: power-domain@16 {
 						#power-domain-cells = <0>;
 						reg = <IMX8MP_POWER_DOMAIN_MIPI_PHY2>;
+						power-domains = <&pgc_mediamix>;
 					};
 
 					pgc_hsiomix: power-domains@17 {
@@ -1082,7 +1084,7 @@ aips4: bus@32c00000 {
 
 			media_blk_ctrl: blk-ctrl@32ec0000 {
 				compatible = "fsl,imx8mp-media-blk-ctrl",
-					     "syscon";
+					     "simple-bus", "syscon";
 				reg = <0x32ec0000 0x10000>;
 				power-domains = <&pgc_mediamix>,
 						<&pgc_mipi_phy1>,
@@ -1120,14 +1122,146 @@ media_blk_ctrl: blk-ctrl@32ec0000 {
 					 <&clk IMX8MP_CLK_MEDIA_MIPI_PHY1_REF_ROOT>;
 				clock-names = "apb", "axi", "cam1", "cam2",
 					      "disp1", "disp2", "isp", "phy";
+				assigned-clocks = <&clk IMX8MP_CLK_MEDIA_DISP1_PIX>,
+						  <&clk IMX8MP_CLK_MEDIA_DISP2_PIX>,
+						  <&clk IMX8MP_VIDEO_PLL1_OUT>;
+				assigned-clock-parents = <&clk IMX8MP_VIDEO_PLL1_OUT>,
+							 <&clk IMX8MP_VIDEO_PLL1_OUT>;
+				assigned-clock-rates = <0>, <0>, <594000000>;
+
+				#power-domain-cells = <1>;
 
-				assigned-clocks = <&clk IMX8MP_CLK_MEDIA_AXI>,
+				lvds_ldb: lvds-ldb {
+					#address-cells = <0>;
+					#size-cells = <0>;
+					compatible = "fsl,imx8mp-ldb";
+					clocks = <&clk IMX8MP_CLK_MEDIA_LDB>;
+					clock-names = "ldb";
+					assigned-clocks = <&clk IMX8MP_CLK_MEDIA_LDB>;
+					assigned-clock-parents = <&clk IMX8MP_VIDEO_PLL1_OUT>;
+
+					ports {
+						#address-cells = <1>;
+						#size-cells = <0>;
+						port@0 {
+							reg = <0>;
+
+							ldb_from_lcdif2: endpoint {
+								remote-endpoint = <&lcdif2_to_ldb>;
+							};
+						};
+
+						/* LVDS single-link or dual-link */
+						port@1 {
+							reg = <1>;
+
+							ldb_lvds_ch0: endpoint {
+							};
+						};
+
+						port@2 {
+							reg = <2>;
+
+							ldb_lvds_ch1: endpoint {
+							};
+						};
+					};
+				};
+			};
+
+			mipi_dsi: mipi_dsi@32e60000 {
+				#address-cells = <0>;
+				#size-cells = <0>;
+				compatible = "fsl,imx8mp-mipi-dsim";
+				reg = <0x32e60000 0x400>;
+				clocks = <&clk IMX8MP_CLK_MEDIA_APB>,
+					 <&clk IMX8MP_CLK_MEDIA_MIPI_PHY1_REF>;
+				clock-names = "bus_clk", "sclk_mipi";
+				assigned-clocks = <&clk IMX8MP_CLK_MEDIA_APB>,
+						  <&clk IMX8MP_CLK_MEDIA_MIPI_PHY1_REF>;
+				assigned-clock-parents = <&clk IMX8MP_SYS_PLL1_266M>,
+							 <&clk IMX8MP_CLK_24M>;
+				assigned-clock-rates = <266000000>, <24000000>;
+				samsung,pll-clock-frequency = <24000000>;
+				interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&media_blk_ctrl IMX8MP_MEDIABLK_PD_MIPI_DSI_1>;
+				status = "disabled";
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					port@0 {
+						reg = <0>;
+
+						dsim_from_lcdif1: endpoint {
+							remote-endpoint = <&lcdif1_to_dsim>;
+						};
+					};
+				};
+			};
+
+			lcdif1: display-controller@32e80000 {
+				#address-cells = <0>;
+				#size-cells = <0>;
+				compatible = "fsl,imx8mp-lcdif";
+				reg = <0x32e80000 0x10000>;
+				clocks = <&clk IMX8MP_CLK_MEDIA_DISP1_PIX_ROOT>,
+					 <&clk IMX8MP_CLK_MEDIA_AXI_ROOT>,
+					 <&clk IMX8MP_CLK_MEDIA_APB_ROOT>;
+				clock-names = "pix", "disp_axi", "axi";
+				assigned-clocks = <&clk IMX8MP_CLK_MEDIA_DISP1_PIX_ROOT>,
+						  <&clk IMX8MP_CLK_MEDIA_AXI>,
 						  <&clk IMX8MP_CLK_MEDIA_APB>;
-				assigned-clock-parents = <&clk IMX8MP_SYS_PLL2_1000M>,
+				assigned-clock-parents = <&clk IMX8MP_CLK_MEDIA_DISP1_PIX>,
+							 <&clk IMX8MP_SYS_PLL2_1000M>,
 							 <&clk IMX8MP_SYS_PLL1_800M>;
-				assigned-clock-rates = <500000000>, <200000000>;
+				assigned-clock-rates = <594000000>, <500000000>, <200000000>;
+				interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&media_blk_ctrl IMX8MP_MEDIABLK_PD_LCDIF_1>;
+				status = "disabled";
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					port@0 {
+						reg = <0>;
 
-				#power-domain-cells = <1>;
+						lcdif1_to_dsim: endpoint {
+							remote-endpoint = <&dsim_from_lcdif1>;
+						};
+					};
+				};
+			};
+
+			lcdif2: display-controller@32e90000 {
+				#address-cells = <0>;
+				#size-cells = <0>;
+				compatible = "fsl,imx8mp-lcdif";
+				reg = <0x32e90000 0x10000>;
+				clocks = <&clk IMX8MP_CLK_MEDIA_DISP2_PIX_ROOT>,
+					 <&clk IMX8MP_CLK_MEDIA_AXI_ROOT>,
+					 <&clk IMX8MP_CLK_MEDIA_APB_ROOT>;
+				clock-names = "pix", "disp_axi", "axi";
+				assigned-clocks = <&clk IMX8MP_CLK_MEDIA_DISP2_PIX_ROOT>,
+						  <&clk IMX8MP_CLK_MEDIA_AXI>,
+						  <&clk IMX8MP_CLK_MEDIA_APB>;
+				assigned-clock-parents = <&clk IMX8MP_CLK_MEDIA_DISP2_PIX>,
+							 <&clk IMX8MP_SYS_PLL2_1000M>,
+							 <&clk IMX8MP_SYS_PLL1_800M>;
+				assigned-clock-rates = <594000000>, <500000000>, <200000000>;
+				interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
+				power-domains = <&media_blk_ctrl IMX8MP_MEDIABLK_PD_LCDIF_2>;
+				status = "disabled";
+
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					port@0 {
+						reg = <0>;
+
+						lcdif2_to_ldb: endpoint {
+							remote-endpoint = <&ldb_from_lcdif2>;
+						};
+					};
+				};
 			};
 
 			pcie_phy: pcie-phy@32f00000 {
-- 
2.39.0


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