linux-kernel - [PATCH v6 22/28] ARM: tegra: nexus7: Use common LVDS display device-tree

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Message-Id: <20211211211412.10791-23-digetx@gmail.com>
Date:   Sun, 12 Dec 2021 00:14:06 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        David Heidelberg <david@...t.cz>,
        Svyatoslav Ryhel <clamor95@...il.com>,
        Anton Bambura <jenneron@...tonmail.com>,
        Antoni Aloy Torrens <aaloytorrens@...il.com>,
        Nikola Milosavljevic <mnidza@...look.com>,
        Ion Agorria <ion@...rria.com>,
        Michał Mirosław <mirq-linux@...e.qmqm.pl>,
        Ihor Didenko <tailormoon@...bler.ru>,
        Andreas Westman Dorcsak <hedmoo@...oo.com>,
        Maxim Schwalm <maxim.schwalm@...il.com>,
        Raffaele Tranquillini <raffaele.tranquillini@...il.com>,
        Jasper Korten <jja2000@...il.com>,
        Thomas Graichen <thomas.graichen@...il.com>,
        Stefan Eichenberger <stefan.eichenberger@...adex.com>,
        Stefan Agner <stefan@...er.ch>,
        Peter Geis <pgwipeout@...il.com>
Cc:     devicetree@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v6 22/28] ARM: tegra: nexus7: Use common LVDS display device-tree

From: Maxim Schwalm <maxim.schwalm@...il.com>

Make Nexus 7 device-tree to use common LVDS bridge description. This makes
device-trees more consistent.

[digetx@...il.com: factored Nexus7 change into separate patch and wrote commit message]
Signed-off-by: Maxim Schwalm <maxim.schwalm@...il.com>
Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 .../tegra30-asus-nexus7-grouper-common.dtsi   | 54 ++-----------------
 1 file changed, 3 insertions(+), 51 deletions(-)

diff --git a/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi b/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi
index e6aed19a5f3b..861ac96bd806 100644
--- a/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi
+++ b/arch/arm/boot/dts/tegra30-asus-nexus7-grouper-common.dtsi
@@ -8,6 +8,7 @@
 #include "tegra30.dtsi"
 #include "tegra30-cpu-opp.dtsi"
 #include "tegra30-cpu-opp-microvolt.dtsi"
+#include "tegra30-asus-lvds-display.dtsi"
 
 / {
 	aliases {
@@ -59,21 +60,6 @@ trustzone@...00000 {
 		};
 	};
 
-	host1x@...00000 {
-		dc@...00000 {
-			rgb {
-				status = "okay";
-
-				port@0 {
-					lcd_output: endpoint {
-						remote-endpoint = <&lvds_encoder_input>;
-						bus-width = <24>;
-					};
-				};
-			};
-		};
-	};
-
 	gpio@...0d000 {
 		init-mode-hog {
 			gpio-hog;
@@ -1114,20 +1100,14 @@ display-panel {
 		 */
 		compatible = "panel-lvds";
 
-		power-supply = <&vdd_pnl>;
-		backlight = <&backlight>;
-
 		width-mm = <94>;
 		height-mm = <150>;
 		rotation = <180>;
 
 		data-mapping = "jeida-24";
 
-		port {
-			panel_input: endpoint {
-				remote-endpoint = <&lvds_encoder_output>;
-			};
-		};
+		/* DDC unconnected on Nexus 7 */
+		/delete-property/ ddc-i2c-bus;
 	};
 
 	firmware {
@@ -1179,34 +1159,6 @@ volume-down {
 		};
 	};
 
-	lvds-encoder {
-		compatible = "ti,sn75lvds83", "lvds-encoder";
-
-		powerdown-gpios = <&gpio TEGRA_GPIO(N, 6) GPIO_ACTIVE_LOW>;
-		power-supply = <&vdd_3v3_sys>;
-
-		ports {
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-			port@0 {
-				reg = <0>;
-
-				lvds_encoder_input: endpoint {
-					remote-endpoint = <&lcd_output>;
-				};
-			};
-
-			port@1 {
-				reg = <1>;
-
-				lvds_encoder_output: endpoint {
-					remote-endpoint = <&panel_input>;
-				};
-			};
-		};
-	};
-
 	vdd_5v0_sys: regulator-5v0 {
 		compatible = "regulator-fixed";
 		regulator-name = "vdd_5v0";
-- 
2.33.1