linux-kernel - [PATCH 5.3 248/344] ARM: dts: am3517-evm: Fix missing video

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Message-Id: <20191003154604.927013033@linuxfoundation.org>
Date:   Thu,  3 Oct 2019 17:53:33 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Adam Ford <aford173@...il.com>,
        Tony Lindgren <tony@...mide.com>
Subject: [PATCH 5.3 248/344] ARM: dts: am3517-evm: Fix missing video

From: Adam Ford <aford173@...il.com>

commit 24cf23276a54dd2825d3e3965c1b1b453e2a113d upstream.

A previous commit removed the panel-dpi driver, which made the
video on the AM3517-evm stop working because it relied on the dpi
driver for setting video timings.  Now that the simple-panel driver
is available in omap2plus, this patch migrates the am3517-evm
to use a similar panel and remove the manual timing requirements.

Fixes: 8bf4b1621178 ("drm/omap: Remove panel-dpi driver")

Signed-off-by: Adam Ford <aford173@...il.com>
Signed-off-by: Tony Lindgren <tony@...mide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/boot/dts/am3517-evm.dts |   23 ++++-------------------
 1 file changed, 4 insertions(+), 19 deletions(-)

--- a/arch/arm/boot/dts/am3517-evm.dts
+++ b/arch/arm/boot/dts/am3517-evm.dts
@@ -124,10 +124,11 @@
 	};
 
 	lcd0: display@0 {
-		compatible = "panel-dpi";
+		/* This isn't the exact LCD, but the timings meet spec */
+		/* To make it work, set CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=4 */
+		compatible = "newhaven,nhd-4.3-480272ef-atxl";
 		label = "15";
-		status = "okay";
-		pinctrl-names = "default";
+		backlight = <&bl>;
 		enable-gpios = <&gpio6 16 GPIO_ACTIVE_HIGH>;	/* gpio176, lcd INI */
 		vcc-supply = <&vdd_io_reg>;
 
@@ -136,22 +137,6 @@
 				remote-endpoint = <&dpi_out>;
 			};
 		};
-
-		panel-timing {
-			clock-frequency = <9000000>;
-			hactive = <480>;
-			vactive = <272>;
-			hfront-porch = <3>;
-			hback-porch = <2>;
-			hsync-len = <42>;
-			vback-porch = <3>;
-			vfront-porch = <4>;
-			vsync-len = <11>;
-			hsync-active = <0>;
-			vsync-active = <0>;
-			de-active = <1>;
-			pixelclk-active = <1>;
-		};
 	};
 
 	bl: backlight {