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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [SKL] scaler atomic code tries to read back CDCLK while the device is suspended"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90874#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [SKL] scaler atomic code tries to read back CDCLK while the device is suspended"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90874">bug 90874</a>
from <span class="vcard"><a class="email" href="mailto:chandra.konduru@intel.com" title="chandra <chandra.konduru@intel.com>"> <span class="fn">chandra</span></a>
</span></b>
<pre>Initial implementation used cached scale values which were calculated at every
modeset time. But based on review feedback it was changed to use live values by
calling skylake_get_display_clock_speed().
Right fix is to precompute required clock and maintain in crtc_state. Either
this caller or any other caller can look into crtc_state to get the active
clock or clock that is about to be set (incase of modeset).</pre>
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