IMX8MM raydium panel setup

ppavacic — Wed, 19 Apr 2023 15:54:45 GMT

Hello,

IMX Linux Integration manual doesn't quite explain MIPI DSI Panel integration.

Lets start with device tree:

https://github.com/varigit/linux-imx/blob/5.15-2.0.x-imx_var01/arch/arm64/boot/dts/freescale/imx8mm-ddr4-evk-rm67191.dts show us that in order to add panel we should just add panel to the &mipi_dsi device tree.

While https://github.com/varigit/linux-imx/blob/5.15-2.0.x-imx_var01/Documentation/devicetree/bindings/display/bridge/sec_dsim.txt

shows us that mipi-dsi requires two ports to be defined and second port should be connected to the MIPI display.

That goes well with the documentation for raydium device tree which can be found here:

https://www.kernel.org/doc/Documentation/devicetree/bindings/display/panel/raydium%2Crm67191.yaml

Therefore final device tree according to my logic should look something like this:

&lcdif { status = "okay"; }; &mipi_dsi { status = "okay"; panel@0 { status = "okay"; reg = <0>; compatible = "raydium,rm67191"; dsi-lanes = <2>; pinctrl-names = "default"; reset-gpios = <&gpio1 11 GPIO_ACTIVE_HIGH>; width-mm = <56>; height-mm = <93>; //video-mode = <2>; port { panel_in: endpoint { remote-endpoint = <&mipi_out>; }; }; }; port@0 { dsim_from_lcdif: endpoint { remote-endpoint = <&lcdif_to_dsim>; }; }; port@1 { mipi_out: endpoint { remote-endpoint = <&panel_in>; }; }; };

Can you please clarify how it should be done.

Re: IMX8MM raydium panel setup

Bio_TICFSL — Thu, 20 Apr 2023 14:43:04 GMT

Hello,

You just need to replacement the dtb of general community by the NXP one and see if one of the GPIO is not used.

regards

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IMX8MM raydium panel setup

Re: IMX8MM raydium panel setup