From 1966e59ec1075597eff4d7feb3d11536a242d0eb Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Wed, 9 Apr 2014 13:29:04 +0300 Subject: [PATCH] drm/i915/chv: Use RMW to toggle swing calc init MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The spec only tells us to set individual bits here and there. So we use RMW for most things. Do the same for the swing calc init. Eventually we should optimize things to just blast the final value in with group access whenever possible. But to do that someone needs to take a good look at what's the reset value for each registers, and possibly if the BIOS manages to frob with some of them. For now use RMW access always. Signed-off-by: Ville Syrjälä Reviewed-by: Mika Kuoppala Signed-off-by: Daniel Vetter --- Reading git-format-patch failed