drm/i915: turn off panel fitting at flip time if needed v2

Need better pfit tracking to do this right.

v2: use fastboot param around this hack

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 2e6fc4ce8ec9..6c0014d84812 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2221,6 +2221,20 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
                 return ret;
         }
 
+        /* Update pipe size and adjust fitter if needed */
+        if (i915_fastboot) {
+                I915_WRITE(PIPESRC(intel_crtc->pipe),
+                           ((crtc->mode.hdisplay - 1) << 16) |
+                           (crtc->mode.vdisplay - 1));
+                if (!intel_crtc->config.pch_pfit.size &&
+                    (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) ||
+                     intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) {
+                        I915_WRITE(PF_CTL(intel_crtc->pipe), 0);
+                        I915_WRITE(PF_WIN_POS(intel_crtc->pipe), 0);
+                        I915_WRITE(PF_WIN_SZ(intel_crtc->pipe), 0);
+                }
+        }
+
         ret = dev_priv->display.update_plane(crtc, fb, x, y);
         if (ret) {
                 intel_unpin_fb_obj(to_intel_framebuffer(fb)->obj);