From dddab346d8285428ddfeab25c4156368bd37414d Mon Sep 17 00:00:00 2001
From: Damien Lespiau <damien.lespiau@intel.com>
Date: Thu, 13 Nov 2014 17:51:50 +0000
Subject: [PATCH] drm/i915: Clear PCODE_DATA1 on SNB+
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit

Ville found out that the DATA1 register exists since SNB with some
scarce apparitions in the specs throughout the times. In his own words:

  Also according to Bspec the mailbox data1 register already existed
  since snb.  The hsw cdclk change sequence also mentions that it should
  be set to 0, but eg. the bdw IPS sequence doesn't mention it. I guess
  in theory some pcode command might cause it to be clobbered, so I'm
  thinking we should just explicitly set it to 0 for all platforms in
  the pcode read/write functions

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
Reading git-format-patch failed