:orphan:

.. _display-lvds-bridge-dt:

LVDS Bridge Display Device Tree
-------------------------------

The MIPI-2-LVDS (SN65DSI83) device node including the display's timings as given in their standard
`Example Device Tree File`_ form.

.. code-block:: text

   &i2c1 {
           dsi_lvds_bridge: sn65dsi83@2c {
                   compatible = "ti,sn65dsi83";
                   reg = <0x2c>;
                   ti,dsi-lanes = <4>;
                   ti,lvds-format = <2>;
                   ti,lvds-bpp = <24>;
                   ti,width-mm = <217>;
                   ti,height-mm = <136>;
                   enable-gpios = <&gpio5 20 GPIO_ACTIVE_LOW>;
                   pinctrl-names = "default";
                   pinctrl-0 = <&pinctrl_lvds>;
                   status = "okay";

                   display-timings {
                           lvds {
                                   clock-frequency = <62500000>;
                                   hactive = <1280>;
                                   vactive = <800>;
                                   hback-porch = <6>;
                                   hfront-porch = <5>;
                                   vback-porch = <2>;
                                   vfront-porch = <3>;
                                   hsync-len = <2>;
                                   vsync-len = <1>;
                                   hsync-active = <0>;
                                   vsync-active = <0>;
                                   de-active = <0>;
                                   pixelclk-active = <0>;
                           };
                   };

                   port {
                           dsi_lvds_bridge_in: endpoint {
                                   remote-endpoint = <&mipi_dsi_out>;
                           };
                   };
           };
   };


Display Timing
--------------
The Actualy display timing part of the DT.

.. code-block:: text

   display-timings {
           lvds {
                   clock-frequency = <62500000>;
                   hactive = <1280>;
                   vactive = <800>;
                   hback-porch = <6>;
                   hfront-porch = <5>;
                   vback-porch = <2>;
                   vfront-porch = <3>;
                   hsync-len = <2>;
                   vsync-len = <1>;
                   hsync-active = <0>;
                   vsync-active = <0>;
                   de-active = <0>;
                   pixelclk-active = <0>;
           };
   };


Example Device Tree File
------------------------

As found in the local yocto sources:

``../yocto/gatesgarth/sources/meta-karo-nxp/recipes-kernel/linux/linux-imx-5.10/mx8/dts/freescale/imx8mm-tx8m-1620.dts``

or as they can be viewed on `github`__.

.. _yocto-tx1620-sn65dsi83-dts-file: https://github.com/karo-electronics/meta-karo-nxp/blob/6b78889ffe4c56b3e87039898e629e76eb5c247d/recipes-kernel/linux/linux-imx-5.10/mx8/dts/freescale/imx8mm-tx8m-1620.dts
__ yocto-tx1620-sn65dsi83-dts-file_