All of lore.kernel.org
 help / color / mirror / Atom feed
From: Manasi Navare <manasi.d.navare@intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: Handling DP compliance short pulse for DP MST
Date: Thu, 8 Sep 2016 18:28:22 -0700	[thread overview]
Message-ID: <20160909012822.GB28560@intel.com> (raw)

Hi,

I have been working on adding DP compliance test request support in
i915 driver. Unigraf DPR-120 is used as a DP Compliance reference 
sink device that generates a short pulse for the compliance test requests.
In case of DP SST, these short pulses get handled in the i915 driver's
short pulse handler (intel_dp_short_pulse). This has been successfully working
to run the DP compliance tests for DP SST. The next step is to handle the DP
compliance short pulses for DP MST. However in case of MST, it also recieves 
short pulses for the sideband traffic from the branch device. This gets handled
in the DRM layer. Since the short pulses for MST get handled in drm layer, should
the compliance short pulses for MST also be handled in DRM layer? In this case,
DRM will read process the short pulse in DRM and call the Compliance test handler
in i915 driver through a function pointer. 

Any thoughts on this implementation of DP compliance support for MST?

Regards
Manasi
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

             reply	other threads:[~2016-09-09  1:28 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-09  1:28 Manasi Navare [this message]
2016-09-09  2:55 ` Handling DP compliance short pulse for DP MST Dave Airlie

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20160909012822.GB28560@intel.com \
    --to=manasi.d.navare@intel.com \
    --cc=intel-gfx@lists.freedesktop.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.