[U-Boot] [PATCH 2/2] imx: mx6ul_14x14_evk: convert to DM_VIDEO

[Peng Fan]

HI,

> Subject: Re: [PATCH 2/2] imx: mx6ul_14x14_evk: convert to DM_VIDEO
> 
> Hi Peng,
> 
> On Thu, Aug 1, 2019 at 3:02 AM Peng Fan <peng.fan at nxp.com> wrote:
> 
> > +       display0: display at 0 {
> > +               bits-per-pixel = <16>;
> > +               bus-width = <24>;
> > +
> > +               display-timings {
> > +                       native-mode = <&timing0>;
> > +
> > +                       timing0: timing0 {
> > +                               clock-frequency = <9200000>;
> > +                               hactive = <480>;
> > +                               vactive = <272>;
> > +                               hfront-porch = <8>;
> > +                               hback-porch = <4>;
> > +                               hsync-len = <41>;
> > +                               vback-porch = <2>;
> > +                               vfront-porch = <4>;
> > +                               vsync-len = <10>;
> > +                               hsync-active = <0>;
> > +                               vsync-active = <0>;
> > +                               de-active = <1>;
> > +                               pixelclk-active = <0>;
> 
> So here we have the LCD timings in the device tree, which differs from the the
> devicetree in mainline.
> 
> This is based on the old mxsfb fbdev driver, which has been removed in 5.3-rc.
> 
> In mainline we pass the innolux,at043tn24 LCD compatible.
> 
> Shouldn't U-Boot be able to handle the same dt-bindings as in the kernel?

I added this node in x-u-boot.dtsi, not in common dts. If drop this display-timings,
we need add a similar structure inside code just as kernel did.
And need to restructure mxsfb driver.

For simple, we could leave this in u-boot.dtsi.

Anatolij, what's your suggestion?

Thanks,
Peng.