Hi, On 09-08-2016 15:55, Shashank Sharma wrote: > This patch series adds 4 patches. > - The first two patches add aspect ratio support in DRM layes > - Next two patches add new aspect ratios defined in CEA-861-F > supported for HDMI 2.0 4k modes. > > Adding aspect ratio support in DRM layer: > - The CEA videmodes contain aspect ratio information, which we > parse when we read the modes from EDID. But while transforming > user_mode to kernel_mode or viceversa, DRM layer lose this > information. > - HDMI compliance testing for CEA modes, expects the AVI info frames > to contain exact VIC no for the 'video mode under test'. Now CEA > modes have different VIC for same modes but different aspect ratio > for example: > VIC 2 = 720x480@60 4:3 > VIC 3 = 720x480@60 16:9 > In this way, lack of aspect ratio information, can cause wrong VIC > no in AVI IF, causing HDMI complaince test to fail. > - This patch set adds code, which embeds the aspect ratio information > also in DRM video mode flags, and uses it while comparing two modes. > > Adding new aspect ratios for HDMI 2.0 > - CEA-861-F defines two new aspect ratios, to be used for 4k HDMI 2.0 > modes. > - 64:27 > - 256:135 > Last two patches in the series, adds code to handle these new > aspect ratios. > > V2: Fixed review comments from Sean, Emil, Daniel > > Shashank Sharma (4): > drm: add picture aspect ratio flags > drm: Add aspect ratio parsing in DRM layer > video: Add new aspect ratios for HDMI 2.0 > drm: Add and handle new aspect ratios in DRM layer I am using these patches to run HDMI 2.0 compliance so: Tested-by: Jose Abreu <joabreu@xxxxxxxxxxxx> I also have code ready that does the EDID parsing of HDMI 2.0 blocks (HF-VSDB, 4:2:0 VDB and 4:2:0 VCB). The code was tested and validated against bridge driver dw-hdmi resorting to HDMI compliance equipment. Besides the parsing I also added support for YCbCr 4:2:0 encoding. Still, to send the patches I need this series to get accepted first. > > drivers/gpu/drm/drm_modes.c | 43 +++++++++++++++++++++++++++++++++++++++++++ > drivers/video/hdmi.c | 4 ++++ > include/linux/hdmi.h | 2 ++ > include/uapi/drm/drm_mode.h | 24 +++++++++++++++++++----- > 4 files changed, 68 insertions(+), 5 deletions(-) > Best regards, Jose Miguel Abreu _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
