On Wed, Nov 02, 2016 at 03:16:10PM +0530, Shashank Sharma wrote:
> CEA-861-F specs defines new 4k video modes to be used with
> HDMI 2.0 EDIDs. These modes start at VIC=93 and go all the
> way till VIC=107.
>
> Our existing CEA modedb contains only 64 modes (VIC=1 to VIC=64). Now
> to be able to parse 4k modes using the existing techniques, we have
> to complete the modedb (VIC=65 onwards).
>
> This patch adds:
> - Timings for existing CEA video modes (from VIC=65 till VIC=92)
> - Newly added 4k modes (from VIC=93 to VIC=107).
>
> Signed-off-by: Shashank Sharma <shashank.sharma@xxxxxxxxx>
> Signed-off-by: Sonika Jindal <sonika.jindal@xxxxxxxxx>
> Reviewed-by: Jose Abreu <Jose.Abreu@xxxxxxxxxxxx>
> Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
>
> Cc: Jose Abreu <Jose.Abreu@xxxxxxxxxxxx>
> Cc: Alex Deucher <alexander.deucher@xxxxxxx>
>
> V2: Addressed review comments from Jose:
> - fix the timings for VIC 83, 90 and 91
> - fix formatting for VIC 93-107
> ---
> drivers/gpu/drm/drm_edid.c | 215 +++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 215 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
> index 9506933..d18602c 100644
> --- a/drivers/gpu/drm/drm_edid.c
> +++ b/drivers/gpu/drm/drm_edid.c
> @@ -994,6 +994,221 @@ struct minimode {
<snip>
> + /* 77 - 1920x1080@100Hz */
> + { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2448,
> + 2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
> + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
> + .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
My script gave me:
{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2448,
2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
.vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
Manual reading of the spec agrees with my script.
<snip>
> + /* 104 - 3840x2160p@25Hz 64:27 */
> + { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 4016,
> + 4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
> + DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
> + .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27},
My script gave me:
{ DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 4896,
4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
.vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
Manual reading of the spec agrees with my script.
Outside those two I don't see any errors in your table when compared to my
script's output. I do see some differences in the already existing modes though.
I'll look those over and send a patch if necessary.
--
Ville Syrjälä
Intel OTC
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