Re: [PATCH 15/17] drm/mgag200: Remove waiting from DPMS code

2020-05-04 Thread Thomas Zimmermann
Hi Am 04.05.20 um 14:10 schrieb Daniel Vetter: > On Wed, Apr 29, 2020 at 04:32:36PM +0200, Thomas Zimmermann wrote: >> The mgag200 drivers waits for the VSYNC flag to get signalled (i.e., >> the page flip happens) before changing DPMS settings. This doesn't work >> reliably if no mode has been pro

Re: [PATCH 15/17] drm/mgag200: Remove waiting from DPMS code

2020-05-04 Thread Daniel Vetter
On Wed, Apr 29, 2020 at 04:32:36PM +0200, Thomas Zimmermann wrote: > The mgag200 drivers waits for the VSYNC flag to get signalled (i.e., > the page flip happens) before changing DPMS settings. This doesn't work > reliably if no mode has been programmed. Therefore remove the waiting > code. Synchro

[PATCH 15/17] drm/mgag200: Remove waiting from DPMS code

2020-04-29 Thread Thomas Zimmermann
The mgag200 drivers waits for the VSYNC flag to get signalled (i.e., the page flip happens) before changing DPMS settings. This doesn't work reliably if no mode has been programmed. Therefore remove the waiting code. Synchronization with page flips should be done by DRM's vblank handlers anyway. S