lcdif_power_down() no longer called with DM_VIDEO

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.

Any suggestions?

Thanks,

Fabio Estevam