[U-Boot] [RFC 5/6] ARM: dts: colibri_imx7: Add lcdif node

Fabio Estevam festevam at gmail.com
Tue Jun 4 22:06:28 UTC 2019


Hi Igor,

On Mon, Jun 3, 2019 at 6:06 PM Igor Opaniuk <igor.opaniuk at gmail.com> wrote:

> +&lcdif {
> +       u-boot,dm-pre-reloc;
> +       status = "okay";
> +
> +       display-timings {
> +               native-mode = <&timing_vga>;
> +
> +               /* Standard VGA timing */
> +               timing_vga: 640x480 {
> +                       u-boot,dm-pre-reloc;
> +                       clock-frequency = <25175000>;
> +                       hactive = <640>;
> +                       vactive = <480>;
> +                       hback-porch = <48>;
> +                       hfront-porch = <16>;
> +                       vback-porch = <33>;
> +                       vfront-porch = <10>;
> +                       hsync-len = <96>;
> +                       vsync-len = <2>;
> +
> +                       de-active = <1>;
> +                       hsync-active = <0>;
> +                       vsync-active = <0>;
> +                       pixelclk-active = <0>

This is the deprecated style mxsfb fbdev binding.

In the kernel we no longer use this style as documented in
Documentation/devicetree/bindings/display/mxsfb.txt

If we follow this route in U-Boot then we will diverge from the kernel
recommended bindings.


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