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<body><span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI] igt@drv_suspend@debugfs-reader - dmesg-warn - *ERROR* dpcd read (1 bytes at 1536) failed (-5)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106371">bug 106371</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
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<td style="text-align:right;">Status</td>
<td>REOPENED
</td>
<td>RESOLVED
</td>
</tr></table>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI] igt@drv_suspend@debugfs-reader - dmesg-warn - *ERROR* dpcd read (1 bytes at 1536) failed (-5)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106371#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI] igt@drv_suspend@debugfs-reader - dmesg-warn - *ERROR* dpcd read (1 bytes at 1536) failed (-5)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106371">bug 106371</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>commit 7a72c78bdd0a1ea1d879610542679cc680398220
Author: Rodrigo Vivi <<a href="mailto:rodrigo.vivi@intel.com">rodrigo.vivi@intel.com</a>>
Date: Thu Jul 19 17:31:55 2018 -0700
drm/i915: Fix psr sink status report.
First of all don't try to read dpcd if PSR is not even supported.
But also, if read failed return -EIO instead of reporting via a
backchannel.
v2: fix dev_priv: At this level m->private is the connector. (CI/DK)
don't convert dpcd read errors to EIO. (DK)
Fixes: 5b7b30864d1d ("drm/i915/psr: Split sink status into a separate
debugfs node")
Cc: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Cc: Dhinakaran Pandiyan <<a href="mailto:dhinakaran.pandiyan@intel.com">dhinakaran.pandiyan@intel.com</a>>
Cc: José Roberto de Souza <<a href="mailto:jose.souza@intel.com">jose.souza@intel.com</a>>
Signed-off-by: Rodrigo Vivi <<a href="mailto:rodrigo.vivi@intel.com">rodrigo.vivi@intel.com</a>>
Reviewed-by: Dhinakaran Pandiyan <<a href="mailto:dhinakaran.pandiyan@intel.com">dhinakaran.pandiyan@intel.com</a>>
Link:
<a href="https://patchwork.freedesktop.org/patch/msgid/20180720003155.16290-1-rodrigo.vivi@intel.com">https://patchwork.freedesktop.org/patch/msgid/20180720003155.16290-1-rodrigo.vivi@intel.com</a></pre>
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