Re: [PATCH v4 2/2] drm: Add HDMI 2.0 VIC support for AVI info-frames

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Regards

Shashank


On 3/23/2017 5:28 PM, Ilia Mirkin wrote:
On Thu, Mar 23, 2017 at 11:22 AM, Sharma, Shashank
<shashank.sharma@xxxxxxxxx> wrote:
On 3/23/2017 5:17 PM, Ilia Mirkin wrote:
On Thu, Mar 23, 2017 at 11:14 AM, Shashank Sharma
<shashank.sharma@xxxxxxxxx> wrote:
HDMI 1.4b support the CEA video modes as per range of CEA-861-D (VIC
1-64).
For any other mode, the VIC filed in AVI infoframes should be 0.
HDMI 2.0 sinks, support video modes range as per CEA-861-F spec, which is
extended to (VIC 1-107).

This patch adds a bool input variable, which indicates if the connected
sink is a HDMI 2.0 sink or not. This will make sure that we don't pass a
HDMI 2.0 VIC to a HDMI 1.4 sink.
Should this patch come before the patch which recognizes VICs 65+?
Otherwise if only the first patch is applied but not this one, you
could end up with the bad scenario. (As can happen in bisections, for
example.)
I kindof agree, this could be the case, but also, for the correct
functionality, you should have the whole series
together.
OK, so ... I have a bug in my filesystem, and I'm bisecting it and
rebooting my box at each step. I happen to hit this commit in my
bisect and my monitor doesn't turn on? Seems unpleasant, no?
Cant say no :-), will happily change the order if this makes you feel better.

Regards
Shashank
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