Re: [PATCH v4 12/78] drm/vc4: crtc: Enable and disable the PV in atomic_enable / disable

2020-07-28 Thread Dave Stevenson
Hi Maxime On Wed, 8 Jul 2020 at 18:42, Maxime Ripard wrote: > > The VIDEN bit in the pixelvalve currently being used to enable or disable > the pixelvalve seems to not be enough in some situations, which whill end > up with the pixelvalve stalling. > > In such a case, even re-enabling VIDEN doesn

[PATCH v4 12/78] drm/vc4: crtc: Enable and disable the PV in atomic_enable / disable

2020-07-09 Thread Maxime Ripard
The VIDEN bit in the pixelvalve currently being used to enable or disable the pixelvalve seems to not be enough in some situations, which whill end up with the pixelvalve stalling. In such a case, even re-enabling VIDEN doesn't bring it back and we need to clear the FIFO. This can only be done if