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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 > + Thanks for reuse overlay file. Frank > 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 > >