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Received: from 89-212-21-243.static.t-2.net ([89.212.21.243]:46684 helo=localhost.localdomain) by cp2.siel.si with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.100.1) (envelope-from ) id 1xEgqG-0000000AIc8-3Y18; Thu, 08 Oct 2026 07:38:54 +0200 From: Primoz Fiser To: Neil Armstrong , Jessica Zhang , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Thierry Reding , Sam Ravnborg Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, upstream@lists.phytec.de Subject: [PATCH 2/2] ARM: dts: imx6qdl-phytec-mira: Switch LVDS panel to 18-bit data mapping Date: Thu, 8 Oct 2026 07:38:50 +0200 Message-Id: <20261008053850.2941955-2-primoz.fiser@norik.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20261008053850.2941955-1-primoz.fiser@norik.com> References: <20261008053850.2941955-1-primoz.fiser@norik.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - cp2.siel.si X-AntiAbuse: Original Domain - lists.infradead.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - norik.com X-Get-Message-Sender-Via: cp2.siel.si: authenticated_id: primoz.fiser@norik.com X-Authenticated-Sender: cp2.siel.si: primoz.fiser@norik.com X-Source: X-Source-Args: X-Source-Dir: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261008_064104_814907_16FD8DA7 X-CRM114-Status: UNSURE ( 8.26 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The phyBOARD-Mira drives its LVDS panel at 18 bits per pixel. This was previously done by always overriding fsl,data-width on the LDB bridge alone and leaving the panel node's compatible, "auo,g104sn02", resulting in LDB and the panel disagreeing on the format actually in use. Now, declare the override on the panel side too, via the data-mapping property and use "jeida-18" which resolves to RGB666_1X7X3_SPWG, exactly matching what fsl,data-mapping = "spwg" + fsl,data-width = <18> produces on the LDB side. Both ends of the link are now consistent instead of silently disagreeing. Signed-off-by: Primoz Fiser --- arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-mira.dtsi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-mira.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-mira.dtsi index 8b2b4ed76328..50e5bb22b9f5 100644 --- a/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-mira.dtsi +++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-mira.dtsi @@ -121,6 +121,7 @@ panel { power-supply = <®_panel>; enable-gpios = <&gpio2 28 GPIO_ACTIVE_LOW>; backlight = <&backlight>; + data-mapping = "jeida-18"; port { panel_in: endpoint { @@ -204,7 +205,7 @@ &ldb { lvds-channel@0 { fsl,data-mapping = "spwg"; - fsl,data-width = <24>; + fsl,data-width = <18>; status = "disabled"; port@4 { -- 2.34.1