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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [HSW CRW]*ERROR* Unknown unclaimed register"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=58897#c8">Comment # 8</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - [HSW CRW]*ERROR* Unknown unclaimed register"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=58897">bug 58897</a>
              from <span class="vcard"><a class="email" href="mailto:yangweix.shui@intel.com" title="shui yangwei <yangweix.shui@intel.com>"> <span class="fn">shui yangwei</span></a>
</span></b>
        <pre>(In reply to <a href="show_bug.cgi?id=58897#c7">comment #7</a>)
<span class="quote">> Created <span class=""><a href="attachment.cgi?id=72775" name="attach_72775" title="reset unclaimed register writes errors on takeover">attachment 72775</a> <a href="attachment.cgi?id=72775&action=edit" title="reset unclaimed register writes errors on takeover">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=58897&attachment=72775'>[review]</a> [review]
> reset unclaimed register writes errors on takeover

> New patch for you to test, with a different approach.</span >

Apply this patch on top commit of branch -next-queued,

this error information will appeared in dmesg.

commit: 9c7a47e7ca7c694ff4f19b568ad4ce1dba64dbd0

[    1.786664] [drm:intel_dsm_platform_mux_info] *ERROR* MUX INFO call failed</pre>
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