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[83.11.207.119]) by smtp.gmail.com with ESMTPSA id g23-20020a17090669d700b00a28e2b72db2sm518809ejs.56.2024.01.04.22.53.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Jan 2024 22:53:15 -0800 (PST) From: Artur Weber Date: Fri, 05 Jan 2024 07:53:01 +0100 Subject: [PATCH v2 1/2] ARM: dts: exynos4212-tab3: add samsung,invert-vclk flag to fimd MIME-Version: 1.0 Message-Id: <20240105-tab3-display-fixes-v2-1-904d1207bf6f@gmail.com> References: <20240105-tab3-display-fixes-v2-0-904d1207bf6f@gmail.com> In-Reply-To: <20240105-tab3-display-fixes-v2-0-904d1207bf6f@gmail.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar , Neil Armstrong , Jessica Zhang , Sam Ravnborg , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=ed25519-sha256; t=1704437592; l=860; i=aweber.kernel@gmail.com; s=20231030; h=from:subject:message-id; bh=Hj/KIXM8+wrf3C6zb6NPg6hk9u+G2N6Miq9I309cmwA=; b=y9TBDXAW40WhQZ9RyljbqE9HKhzBXZ64rvQTNoPAID3ula15xCJhQhW/2iksx6g5BkUiOZ9Zd PdpWEQ9LjCzDZWJLsH+POGdfXFFhAi1McL/WcJTJJjyZwgTczWGXKVr X-Developer-Key: i=aweber.kernel@gmail.com; a=ed25519; pk=RhDBfWbJEHqDibXbhNEBAnc9FMkyznGxX/hwfhL8bv8= X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, linux-samsung-soc@vger.kernel.org, Artur Weber , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" After more investigation, I've found that it's not the panel driver config that needs to be modified to invert the data polarity, but the FIMD config. Add the missing invert-vclk option that is required to get the display to work correctly. Fixes: ee37a457af1d ("ARM: dts: exynos: Add Samsung Galaxy Tab 3 8.0 boards") Signed-off-by: Artur Weber --- arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi b/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi index d7954ff466b4..e5254e32aa8f 100644 --- a/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi +++ b/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi @@ -434,6 +434,7 @@ &exynos_usbphy { }; &fimd { + samsung,invert-vclk; status = "okay"; };