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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [BYT/BSW/SKL Debugfs] cat /sys/kernel/debug/dri/0/i915_sr_status showing self-refresh: disabled"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=89792">89792</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[BYT/BSW/SKL Debugfs] cat /sys/kernel/debug/dri/0/i915_sr_status showing self-refresh: disabled
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>DRM/Intel
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>bin.a.xu@intel.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>==System Environment==
--------------------------
Regression: No. This is the first time to do the case.
Non-working platforms: BYT/BSW/SKL 
Working platforms: BDW

==kernel==
--------------------------
-nightly: 60c5b7f582e8ced10dcd557db4ea66665e6a4dff (fails)
    drm-intel-nightly: 2015y-03m-26d-21h-48m-18s UTC integration manifest
-queued: d21bd67bbbc635424b336b7c881dbcdf6098f9f5 (fails)
    drm/i915: Don't use encoder->new_crtc in intel_lvds_compute_config()
-fixes: 5f407751b0ca9bd876fe8f15ff28153661c6ba0a (fails)
    drm/i915: Fixup legacy plane->crtc link for initial fb config

==Bug detailed description==
-----------------------------
Consult Damien, as far as he knows: we don't have anything to do on kernel
driver on SKL for (system) memory self-refresh and the WM programming is
enough.

The bug just debugfs file does not update to support new platforms.

If this debugfs file can be enable, will greatly help QA verify the MSR/WM
funcitonality.


==Reproduce steps==
---------------------------- 
1. Boot system into kernel and keep idleness
2. cat /sys/kernel/debug/dri/0/i915_sr_status
3. Debugfs file show: self-refresh: disabled</pre>
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