From: Clint Taylor <clinton.a.taylor@intel.com>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Subject: Re: [PATCH] drm/edid: Reduce horizontal timings for pixel replicated modes
Date: Mon, 25 Aug 2014 08:57:50 -0700 [thread overview]
Message-ID: <53FB5CFE.7070809@intel.com> (raw)
In-Reply-To: <20140825130258.GF15520@phenom.ffwll.local>
On 08/25/2014 06:02 AM, Daniel Vetter wrote:
> On Mon, Aug 18, 2014 at 02:02:14PM -0700, clinton.a.taylor@intel.com wrote:
>> From: Clint Taylor <clinton.a.taylor@intel.com>
>>
>> Pixel replicated modes should be 720 horizontal pixel and pixel
>> replicated by the HW across the HDMI cable at 2X pixel clock. Current
>> horizontal resolution of 1440 does not allow pixel duplication to
>> occur and scaling artifacts occur on the TV. HDMI certification
>> 7-26 currently fails for all pixel replicated modes. This change fizes
>> the HDMI certification issues with 480i/576i.
>>
>> V2: Removed interlace flag from VICs 44 and 45. Will be submitted in
>> another patch. Various other formatting fixes.
>>
>> Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com>
>> ---
>> drivers/gpu/drm/drm_edid.c | 96 ++++++++++++++++++-------------------
>> drivers/gpu/drm/i915/intel_hdmi.c | 10 +++-
>
> I think the i915 side of this double-clock support should be split out
> into a separate patch. Makes it easier for people to spot that there's
> some driver work to enable this properly.
> -Daniel
>
Two patches will work. The HDMI driver will just reject the SD
interlaced modes without the i915 changes.
Clint
next prev parent reply other threads:[~2014-08-25 15:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-18 21:02 [PATCH] drm/edid: Reduce horizontal timings for pixel replicated modes clinton.a.taylor
2014-08-19 18:37 ` Ville Syrjälä
2014-08-25 13:02 ` Daniel Vetter
2014-08-25 15:57 ` Clint Taylor [this message]
-- strict thread matches above, loose matches on Subject: below --
2014-08-19 21:21 clinton.a.taylor
2014-08-12 22:43 clinton.a.taylor
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