From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
valleyview_modeset_global_pipes() may add pipes that are getting fully
disabled to prepare_pipes bitmask. The rest of the code doesn't expect
this, so clear out any such pipes from the prepare_pipes bitmask.
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_display.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index f97e895..ddbef9c 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9514,10 +9514,14 @@ static int __intel_set_mode(struct drm_crtc *crtc,
* mode set on this crtc. For other crtcs we need to use the
* adjusted_mode bits in the crtc directly.
*/
- if (IS_VALLEYVIEW(dev))
+ if (IS_VALLEYVIEW(dev)) {
valleyview_modeset_global_pipes(dev, &prepare_pipes,
modeset_pipes, pipe_config);
+ /* may have added more to prepare_pipes than we should */
+ prepare_pipes &= ~disable_pipes;
+ }
+
for_each_intel_crtc_masked(dev, disable_pipes, intel_crtc)
intel_crtc_disable(&intel_crtc->base);
--
1.8.1.5
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