From: Daniel Vetter <daniel@ffwll.ch>
To: Adam Jackson <ajax@redhat.com>
Cc: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Subject: Re: [PATCH 1/3] drm/edid: Fix up clock for CEA/HDMI modes specified via detailed timings
Date: Thu, 8 Oct 2015 18:55:16 +0200 [thread overview]
Message-ID: <20151008165516.GF3383@phenom.ffwll.local> (raw)
In-Reply-To: <1444321351.26505.93.camel@redhat.com>
On Thu, Oct 08, 2015 at 12:22:31PM -0400, Adam Jackson wrote:
> On Thu, 2015-10-08 at 11:43 +0300, ville.syrjala@linux.intel.com wrote:
> > From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> >
> > EDID detailed timings have a resolution of 10kHz for the pixel clock, so
> > they can't represent certain CEA/HDMI modes accurately. If we see a mode
> > coming in via detailed timings which otherwise matches one of the
> > CEA/HDMI modes except the clock is just a bit off, let's assume that the
> > intention was for that mode to be one of the CEA/HDMI modes and go ahead
> > and fix up the clock to match the CEA/HDMI spec exactly (well, as close
> > as we can get with the 1 kHz resolution we use).
> >
> > This should help code that's looking for an exact clock match (eg. i915
> > audio N/CTS setup).
>
> Looks like a sane set of changes. Series is:
>
> Reviewed-by: Adam Jackson <ajax@redhat.com>
Merged the first two patches to drm-misc (the later one has conflicts with
the lack of drm-intel-next, so can pull it in only after a rebase).
Thanks, Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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next prev parent reply other threads:[~2015-10-08 16:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-08 8:43 [PATCH 1/3] drm/edid: Fix up clock for CEA/HDMI modes specified via detailed timings ville.syrjala
2015-10-08 8:43 ` [PATCH 2/3] drm/edid: Round to closest when computing the CEA/HDMI alternate clock ville.syrjala
2015-10-08 8:43 ` [PATCH 3/3] drm/i915: Use round to closest when computing the CEA 1.001 pixel clocks ville.syrjala
2015-10-08 16:22 ` [PATCH 1/3] drm/edid: Fix up clock for CEA/HDMI modes specified via detailed timings Adam Jackson
2015-10-08 16:55 ` Daniel Vetter [this message]
2015-10-09 10:54 ` Jani Nikula
2015-10-19 15:56 ` [Intel-gfx] " Daniel Vetter
2015-10-20 6:31 ` Jani Nikula
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