On Mon, Oct 17, 2016 at 05:34:36PM +0530, 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
> - 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
> - 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
> V3: Fixed review comments from Jim Bride, got r-b for all patches
> V4: Added r-b from Jose for the series, and ack-by from Tomi on patch 3
> 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
Applied to drm-misc, thanks. I guess you'll follow up with i915 patches to
remove the picture aspect ratio for overrides eventually?
> 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(-)
> dri-devel mailing list
Software Engineer, Intel Corporation
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