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>

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 2e6fc4c..6c0014d 100644 (file)
--- 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);