linux-kernel - [PATCH v1] ARM: dts: imx7: remove DSI port endpoints

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Date: Fri, 16 Feb 2024 11:42:55 +0100
From: Francesco Dolcini <francesco@...cini.it>
To: Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	NXP Linux Team <linux-imx@....com>
Cc: Francesco Dolcini <francesco.dolcini@...adex.com>,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Marco Felsch <m.felsch@...gutronix.de>,
	Roland Hieber <rhi@...gutronix.de>,
	Hiago De Franco <hiagofranco@...il.com>
Subject: [PATCH v1] ARM: dts: imx7: remove DSI port endpoints

From: Francesco Dolcini <francesco.dolcini@...adex.com>

This fixes the display not working on colibri imx7, the driver fails to
load with the following error:

  mxsfb 30730000.lcdif: error -ENODEV: Cannot connect bridge

NXP i.MX7 LCDIF is connected to both the Parallel LCD Display and to a
MIPI DSI IP block, currently it's not possible to describe the
connection to both.

Remove the port endpoint from the SOC dtsi to prevent regressions, this
would need to be defined on the board DTS.

Reported-by: Hiago De Franco <hiagofranco@...il.com>
Closes: https://lore.kernel.org/r/34yzygh3mbwpqr2re7nxmhyxy3s7qmqy4vhxvoyxnoguktriur@z66m7gvpqlia/
Fixes: edbbae7fba49 ("ARM: dts: imx7: add MIPI-DSI support")
Signed-off-by: Francesco Dolcini <francesco.dolcini@...adex.com>
---
 arch/arm/boot/dts/nxp/imx/imx7s.dtsi | 26 --------------------------
 1 file changed, 26 deletions(-)

diff --git a/arch/arm/boot/dts/nxp/imx/imx7s.dtsi b/arch/arm/boot/dts/nxp/imx/imx7s.dtsi
index ebf7befcc11e..9c81c6baa2d3 100644
--- a/arch/arm/boot/dts/nxp/imx/imx7s.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx7s.dtsi
@@ -834,16 +834,6 @@ lcdif: lcdif@...30000 {
 					<&clks IMX7D_LCDIF_PIXEL_ROOT_CLK>;
 				clock-names = "pix", "axi";
 				status = "disabled";
-
-				port {
-					#address-cells = <1>;
-					#size-cells = <0>;
-
-					lcdif_out_mipi_dsi: endpoint@0 {
-						reg = <0>;
-						remote-endpoint = <&mipi_dsi_in_lcdif>;
-					};
-				};
 			};
 
 			mipi_csi: mipi-csi@...50000 {
@@ -895,22 +885,6 @@ mipi_dsi: dsi@...60000 {
 				samsung,esc-clock-frequency = <20000000>;
 				samsung,pll-clock-frequency = <24000000>;
 				status = "disabled";
-
-				ports {
-					#address-cells = <1>;
-					#size-cells = <0>;
-
-					port@0 {
-						reg = <0>;
-						#address-cells = <1>;
-						#size-cells = <0>;
-
-						mipi_dsi_in_lcdif: endpoint@0 {
-							reg = <0>;
-							remote-endpoint = <&lcdif_out_mipi_dsi>;
-						};
-					};
-				};
 			};
 		};
 
-- 
2.39.2