lcdif_power_down() no longer called with DM_VIDEO

[Fabio Estevam]

On Sat, Jan 25, 2020 at 5:52 PM Fabio Estevam <festevam at gmail.com> wrote:
>
> Hi Anatolij,
>
> I noticed that after mxsfb has been converted to DM the
> lcdif_power_down() function is no longer called.
>
> This causes issues in the kernel, where the Linux logo sometimes
> appears in the incorrect position, for example. I see this issue on a
> imx6ul-evk board.
>
> If I do the same steps of U-Boot lcdif_power_down() inside the mxsfb
> driverl I can make the logo to always appear in the correct position,
> but in order to avoid regressions when booting existing kernels I
> think that lcdif_power_down() still needs to be called when DM_VIDEO
> is selected.
>
> Not sure how to do this cleanly though.

Or in other words:

How do we make the .remove hook from the mxs_video driver to be
invoked prior to booting the kernel?

Thanks