From: Chris Wilson Date: Mon, 30 Apr 2012 18:35:02 +0000 (+0100) Subject: drm/i915: Only enable IPS polling for gen5 X-Git-Tag: v3.4-rc6~15^2~1^2~2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e90f3b61f4432e3c5bb6b57f4b3e8d8cba747541;p=pandora-kernel.git drm/i915: Only enable IPS polling for gen5 On SandyBridge IPS was entirely implemented in hardware and not reliant on the driver monitoring power consumption and feeding back desired run states, so the hardware is able to adapt quicker and more flexibly. Which is a huge relief for us as we no longer have to carry empirically derived magic algorithms. Yet despite the advance in technology, the driver was still doing its IPS polling on all machines. Restrict it to the only supported hardware, Clarkdale/Arrandale. Signed-off-by: Chris Wilson Reviewed-by: Jesse Barnes Tested-by: Andrey Rahmatullin Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=49025 Signed-off-by: Daniel Vetter --- Reading git-diff-tree failed