Re: [PATCH v2 2/2] drm/sun4i: drc: Make sure we enforce the clock rate

2020-01-09 Thread Maxime Ripard
On Wed, Jan 08, 2020 at 01:28:34AM +0800, Chen-Yu Tsai wrote: > On Wed, Jan 8, 2020 at 1:00 AM Maxime Ripard wrote: > > > > The DRC 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

[PATCH v2 2/2] drm/sun4i: drc: Make sure we enforce the clock rate

2020-01-08 Thread Maxime Ripard
The DRC 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

Re: [PATCH v2 2/2] drm/sun4i: drc: Make sure we enforce the clock rate

2020-01-07 Thread Chen-Yu Tsai
On Wed, Jan 8, 2020 at 1:00 AM Maxime Ripard wrote: > > The DRC 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