[RESEND-CI v4 06/15] drm/edid: parse sink information before CEA blocks

[Ville Syrjälä]

On Fri, Jun 30, 2017 at 10:52:54AM +0530, Sharma, Shashank wrote:
> Regards
> 
> Shashank
> 
> 
> On 6/27/2017 5:25 PM, Ville Syrjälä wrote:
> > On Wed, Jun 21, 2017 at 04:04:04PM +0530, Shashank Sharma wrote:
> >> CEA-861-F adds ycbcr capability map block, for HDMI 2.0 sinks.
> >> This block contains a map of indexes of CEA modes, which can
> >> support YCBCR 420 output also. To avoid multiple parsing of same
> >> CEA block, let's parse the sink information and get this map, before
> >> parsing CEA modes.
> >>
> >> This patch moves the call to drm_add_display_info function, before the
> >> mode parsing block.
> >>
> >> Signed-off-by: Shashank Sharma <shashank.sharma at intel.com>
> >> ---
> >>   drivers/gpu/drm/drm_edid.c | 9 +++++++--
> >>   1 file changed, 7 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
> >> index b4583f6..42934b2 100644
> >> --- a/drivers/gpu/drm/drm_edid.c
> >> +++ b/drivers/gpu/drm/drm_edid.c
> >> @@ -4605,6 +4605,13 @@ int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
> >>   	quirks = edid_get_quirks(edid);
> >>   
> >>   	/*
> >> +	 * CEA-861-F adds ycbcr capability map block, for HDMI 2.0 sinks.
> >> +	 * To avoid multiple parsing of same block, lets parse that map
> >> +	 * from sink info, before parsing CEA modes.
> >> +	 */
> >> +	drm_add_display_info(connector, edid);
> >> +
> > This patch should come before the 4:2:0 mode parsing, no?
> Dint you ask me to move it later (in the previous series comments), for 
> git-bisect regression type of changes ?

I wanted it split out to help with bisecting. It should be early in the
series because otherwise the rest makes no sense. And I suppose we should
be able to push this in on its own right now. Just need a CI run for it,
so maybe resesnd just this patch on its own.

> > Otherwise I think this should be fine so
> > Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> Thanks.
> >
> >> +	/*
> >>   	 * EDID spec says modes should be preferred in this order:
> >>   	 * - preferred detailed mode
> >>   	 * - other detailed modes from base block
> >> @@ -4632,8 +4639,6 @@ int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
> >>   	if (quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75))
> >>   		edid_fixup_preferred(connector, quirks);
> >>   
> >> -	drm_add_display_info(connector, edid);
> >> -
> >>   	if (quirks & EDID_QUIRK_FORCE_6BPC)
> >>   		connector->display_info.bpc = 6;
> >>   
> >> -- 
> >> 2.7.4

-- 
Ville Syrjälä
Intel OTC