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(93-49-2-63.ip317.fastwebnet.it [93.49.2.63]) by mail11.truemail.it (Postfix) with ESMTPA id 1671E1F94F; Tue, 1 Sep 2026 14:49:35 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dolcini.it; s=default; t=1788266975; bh=16wkGkGjtMZJK0egYytkz9YHSnlvfQ9XYjKckJktAqc=; h=From:To:Subject; b=Tw02IMJZ6jzXen+J6UQZpvw655/oHpgiVUqUrMiVYUbvf6dP6zo0JeDXSi5b3Inws 5OqRZpl8mN9abu1KnrutKWp/ZEvy9s+NhEWu9LaOqDis3Ls50vIr3QPaCw66MS3YUO D8TtZSMM0Rf8LVHK7ILDHXaYr8fp38R7dycWkyfuutoJwjLsZljSx1cleEcJ5bnbyM W9nictGWcDSqmJ84f1Bd98ztPyYPW67kwO1G2FNWgy+Z+x4iprmy092kJTXvzz3bto uSZtldAPjzK1lnqOA8ab7gtlLJA1Oz/O0yBdzETyPgLzggOHuD9K1Kyv+t8P41rPzy 8O+odu53Ncp9w== From: Francesco Dolcini To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Cc: Francesco Dolcini , devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v1] ARM: dts: imx7d-colibri-emmc: Add VGA overlay Date: Tue, 1 Sep 2026 14:49:20 +0200 Message-ID: <20260901124921.78635-1-francesco@dolcini.it> X-Mailer: git-send-email 2.47.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260901_054943_895649_811D28C9 X-CRM114-Status: GOOD ( 15.09 ) 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 From: Francesco Dolcini Add a device tree overlay for the VGA output on the Colibri iMX7 parallel RGB LCD interface. The VGA output is driven through a non-programmable video DAC without VESA DDC I2C signals to a DVI connector. The overlay is also combined with the Aster, Evaluation Board v3, Iris and Iris v2 carrier board device trees to provide ready-to-use DTBs. Signed-off-by: Francesco Dolcini --- this patch is on top of https://lore.kernel.org/all/20260723105225.194366-1-francesco@dolcini.it/ --- arch/arm/boot/dts/nxp/imx/Makefile | 21 +++++++ .../dts/nxp/imx/imx7d-colibri-emmc-vga.dtso | 59 +++++++++++++++++++ 2 files changed, 80 insertions(+) create mode 100644 arch/arm/boot/dts/nxp/imx/imx7d-colibri-emmc-vga.dtso diff --git a/arch/arm/boot/dts/nxp/imx/Makefile b/arch/arm/boot/dts/nxp/imx/Makefile index e9f95c3b8353..d1272104ef27 100644 --- a/arch/arm/boot/dts/nxp/imx/Makefile +++ b/arch/arm/boot/dts/nxp/imx/Makefile @@ -436,18 +436,39 @@ imx7d-colibri-emmc-eval-v3-panel-res-touch-7inch-parallel-dtbs := \ imx7d-colibri-emmc-eval-v3.dtb \ imx7d-colibri-emmc-panel-res-touch-7inch-parallel.dtbo +imx7d-colibri-emmc-aster-vga-dtbs := \ + imx7d-colibri-emmc-aster.dtb \ + imx7d-colibri-emmc-vga.dtbo + +imx7d-colibri-emmc-eval-v3-vga-dtbs := \ + imx7d-colibri-emmc-eval-v3.dtb \ + imx7d-colibri-emmc-vga.dtbo + +imx7d-colibri-emmc-iris-vga-dtbs := \ + imx7d-colibri-emmc-iris.dtb \ + imx7d-colibri-emmc-vga.dtbo + +imx7d-colibri-emmc-iris-v2-vga-dtbs := \ + imx7d-colibri-emmc-iris-v2.dtb \ + imx7d-colibri-emmc-vga.dtbo + dtb-$(CONFIG_SOC_IMX7D) += \ imx7d-cl-som-imx7.dtb \ imx7d-colibri-aster.dtb \ imx7d-colibri-emmc-aster.dtb \ imx7d-colibri-emmc-aster-panel-cap-touch-7inch-parallel.dtb \ + imx7d-colibri-emmc-aster-vga.dtb \ imx7d-colibri-emmc-iris.dtb \ + imx7d-colibri-emmc-iris-vga.dtb \ imx7d-colibri-emmc-iris-v2.dtb \ imx7d-colibri-emmc-iris-v2-panel-cap-touch-7inch-parallel.dtb \ + imx7d-colibri-emmc-iris-v2-vga.dtb \ imx7d-colibri-emmc-eval-v3.dtb \ imx7d-colibri-emmc-eval-v3-panel-cap-touch-7inch-parallel-touch-adapter.dtb \ imx7d-colibri-emmc-eval-v3-panel-res-touch-7inch-parallel.dtb \ + imx7d-colibri-emmc-eval-v3-vga.dtb \ imx7d-colibri-emmc-panel-cap-touch-7inch-parallel.dtbo \ + imx7d-colibri-emmc-vga.dtbo \ imx7d-colibri-eval-v3.dtb \ imx7d-colibri-iris.dtb \ imx7d-colibri-iris-v2.dtb \ diff --git a/arch/arm/boot/dts/nxp/imx/imx7d-colibri-emmc-vga.dtso b/arch/arm/boot/dts/nxp/imx/imx7d-colibri-emmc-vga.dtso new file mode 100644 index 000000000000..cda214c13876 --- /dev/null +++ b/arch/arm/boot/dts/nxp/imx/imx7d-colibri-emmc-vga.dtso @@ -0,0 +1,59 @@ +// SPDX-License-Identifier: GPL-2.0-only OR MIT +/* + * Copyright (c) Toradex + * + * VGA output connected to the Colibri parallel RGB LCD interface through a + * non-programmable video DAC with a DVI connector. + * + * The VGA output is available on multiple carrier boards (including Iris, + * Eval, Aster) without VESA DDC I2C signals. + */ + +/dts-v1/; +/plugin/; + +&{/} { + vga-encoder { + compatible = "dumb-vga-dac"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + vga_enc_in: endpoint { + remote-endpoint = <&lcdif_out>; + }; + }; + + port@1 { + reg = <1>; + + vga_enc_out: endpoint { + remote-endpoint = <&dvi_connector_in>; + }; + }; + }; + }; + + dvi-connector { + compatible = "dvi-connector"; + analog; + + port { + dvi_connector_in: endpoint { + remote-endpoint = <&vga_enc_out>; + }; + }; + }; +}; + +&lcdif { + status = "okay"; +}; + +&lcdif_out { + remote-endpoint = <&vga_enc_in>; +}; -- 2.47.3