Merge branch 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel into drm-next

Last pile of stuff for 3.7, essentially just a bunch of bigger fixes and a
few less intrusive features:

- cpu freq interface in sysfs from Ben
- cpu edp fixes and some related cleanups
- write-combining ptes for pre-gen6 (Chris)
- basic CADL support (Peter Wu), this fixes quite a few issues with
  backlights ...
- rework of the gem backing pages handling (preps for stolen mem handling)
  from Chris
- some more cleanup-fallout from the modeset-rework

On top of that I've done a backmerge of -rc7(since the conflicts got too
messy and I've pushed out broken merged trees too often). I've also
included 3 fixes on top of what QA beat on:

- Fix for a infoframe handling regression in 3.5 - infoframe blows up too
  often and 3.6 is pretty much done, so I'd like to merge that through
  -next and the stable process and give it more exposure before it lands
  in a stable tree.
- ioctl cosmetics^Wspelling fix in the structs (userspace won't be
  affected, since all existing userspace uses private copies of the ioctl
  struct definitions, and the struct layout itself is abi compatible).
- Bugfix for a regression introduced in this pull's testing cycle.

* 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel: (695 commits)
  drm/i915: Wrap external callers to IPS state with appropriate locks
  drm/i915: s/cacheing/caching/
  drm/i915: make sure we write all the DIP data bytes
  drm/i915: BUG() on unexpected HDMI register
  ...

1 files changed, 16 insertions, 20 deletions

diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index f4d4505fe83..2817101fb16 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -258,7 +258,6 @@ void atombios_crtc_dpms(struct drm_crtc *crtc, int mode)
 		radeon_crtc->enabled = true;
 		/* adjust pm to dpms changes BEFORE enabling crtcs */
 		radeon_pm_compute_clocks(rdev);
-		/* disable crtc pair power gating before programming */
 		if (ASIC_IS_DCE6(rdev) && !radeon_crtc->in_mode_set)
 			atombios_powergate_crtc(crtc, ATOM_DISABLE);
 		atombios_enable_crtc(crtc, ATOM_ENABLE);
@@ -278,25 +277,8 @@ void atombios_crtc_dpms(struct drm_crtc *crtc, int mode)
 			atombios_enable_crtc_memreq(crtc, ATOM_DISABLE);
 		atombios_enable_crtc(crtc, ATOM_DISABLE);
 		radeon_crtc->enabled = false;
-		/* power gating is per-pair */
-		if (ASIC_IS_DCE6(rdev) && !radeon_crtc->in_mode_set) {
-			struct drm_crtc *other_crtc;
-			struct radeon_crtc *other_radeon_crtc;
-			list_for_each_entry(other_crtc, &rdev->ddev->mode_config.crtc_list, head) {
-				other_radeon_crtc = to_radeon_crtc(other_crtc);
-				if (((radeon_crtc->crtc_id == 0) && (other_radeon_crtc->crtc_id == 1)) ||
-				    ((radeon_crtc->crtc_id == 1) && (other_radeon_crtc->crtc_id == 0)) ||
-				    ((radeon_crtc->crtc_id == 2) && (other_radeon_crtc->crtc_id == 3)) ||
-				    ((radeon_crtc->crtc_id == 3) && (other_radeon_crtc->crtc_id == 2)) ||
-				    ((radeon_crtc->crtc_id == 4) && (other_radeon_crtc->crtc_id == 5)) ||
-				    ((radeon_crtc->crtc_id == 5) && (other_radeon_crtc->crtc_id == 4))) {
-					/* if both crtcs in the pair are off, enable power gating */
-					if (other_radeon_crtc->enabled == false)
-						atombios_powergate_crtc(crtc, ATOM_ENABLE);
-					break;
-				}
-			}
-		}
+		if (ASIC_IS_DCE6(rdev) && !radeon_crtc->in_mode_set)
+			atombios_powergate_crtc(crtc, ATOM_ENABLE);
 		/* adjust pm to dpms changes AFTER disabling crtcs */
 		radeon_pm_compute_clocks(rdev);
 		break;
@@ -1682,9 +1664,22 @@ static void atombios_crtc_disable(struct drm_crtc *crtc)
 	struct drm_device *dev = crtc->dev;
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_atom_ss ss;
+	int i;
 
 	atombios_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
 
+	for (i = 0; i < rdev->num_crtc; i++) {
+		if (rdev->mode_info.crtcs[i] &&
+		    rdev->mode_info.crtcs[i]->enabled &&
+		    i != radeon_crtc->crtc_id &&
+		    radeon_crtc->pll_id == rdev->mode_info.crtcs[i]->pll_id) {
+			/* one other crtc is using this pll don't turn
+			 * off the pll
+			 */
+			goto done;
+		}
+	}
+
 	switch (radeon_crtc->pll_id) {
 	case ATOM_PPLL1:
 	case ATOM_PPLL2:
@@ -1701,6 +1696,7 @@ static void atombios_crtc_disable(struct drm_crtc *crtc)
 	default:
 		break;
 	}
+done:
 	radeon_crtc->pll_id = -1;
 }