[PATCH 1/2] drm/sun4i: backend: Make sure we enforce the clock rate

[Chen-Yu Tsai]

On Thu, Dec 19, 2019 at 5:20 PM Maxime Ripard <maxime at cerno.tech> wrote:
>
> The backend needs to run at 300MHz to be functional. This was done so far
> using assigned-clocks in the device tree, but that is easy to forget, and
> dosen't provide any other guarantee than the rate is going to be roughly
> the one requested at probe time.
>
> Therefore it's pretty fragile, so let's just use the exclusive clock API to
> enforce it.
>
> Signed-off-by: Maxime Ripard <maxime at cerno.tech>

Reviewed-by: Chen-Yu Tsai <wens at csie.org>