On Wed, Nov 17, 2021 at 07:05:33PM +0100, Nicolas Frattaroli wrote: > On Mittwoch, 17. November 2021 15:33:47 CET Sascha Hauer wrote: > > The VOP2 unit is found on Rockchip SoCs beginning with rk3566/rk3568. > > It replaces the VOP unit found in the older Rockchip SoCs. > > > > This driver has been derived from the downstream Rockchip Kernel and > > heavily modified: > > > > - All nonstandard DRM properties have been removed > > - dropped struct vop2_plane_state and pass around less data between > > functions > > - Dropped all DRM_FORMAT_* not known on upstream > > - rework register access to get rid of excessively used macros > > > > The driver is tested with HDMI and MIPI-DSI display on a RK3568-EVB > > board. Overlay support is tested with the modetest utility. AFBC support > > is still present in the driver, but currently untested due to the lack > > of suitable image sources. Also the driver has been tested with weston > > using pixman and (yet to be upstreamed) panfrost driver support. > > > > Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> > > --- > > Hi Sascha, > > thank you very much for your work on this! I gave it a try tonight, > and unfortunately it appears to currently always attempt to use > 1920x1080p60 as the mode regardless of the monitor. For example, > on an old 720p monitor I had laying around: > > [ 225.732342] rockchip-drm display-subsystem: [drm] Update mode to 1920x1080p60, type: 11 for vp0, output 0x00000800 HDMI0 > > This results in a broken picture (all white with occasional glitches). > Somebody else observed the same behaviour on a 1440p monitor. Unfortunately all my monitors I have here have exactly 1920x1080p60, so I didn't notice. Anyway, when I try another mode like 1280x1024 which should be supported as well then my monitor responds with "out of range", so something is indeed fishy here. I'll have a look into it. Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
