drm/i915: make the panel fitter work on pipes B and C on Haswell

This goes on a separate patch since it won't apply on the stable
trees and there's nothing using panel fitter on HSW on the older
Kernels.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index c2ef6cdf66c35a3489b0540e0527a24d44dd73f2..1e405a3b660443d8bee0e4d359868c0718487376 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3467,7 +3467,8 @@ static void haswell_crtc_enable(struct drm_crtc *crtc)
                 * as some pre-programmed values are broken,
                 * e.g. x201.
                 */
-               I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3);
+               I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 |
+                                        PF_PIPE_SEL_IVB(pipe));
                I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos);
                I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size);
        }