[PATCH 4/9] ARM: dts: stm32mp1: move FDCAN to PLL4_R

[Marek Vasut]

On 1/28/20 10:11 AM, Patrick Delaunay wrote:
> From: Antonio Borneo <antonio.borneo at st.com>
> 
> LTDC modifies the clock frequency to adapt it to the display. Such
> frequency change is not detected by the FDCAN driver that instead
> cache the value at probe and pretend to use it later.
> 
> Keep the LTDC alone on PLL4_Q by moving the FDCAN to PLL4_R.

Now this looks like a grisly workaround. Can you fix the LTDC driver to
do something sane on boards which didn't update bootloader yet ?