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authorMatt Roper <matthew.d.roper@intel.com>2015-05-07 23:31:28 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2015-05-08 13:04:19 +0200
commit90d469067d0808ddbd9be2c97a4a8e14037b5e46 (patch)
treedeabb16bba12e095c7db8a1f3666ff3e82134a82
parentdrm/i915/skl: Re-indent part of skl_ddi_calculate_wrpll() (diff)
downloadlinux-90d469067d0808ddbd9be2c97a4a8e14037b5e46.tar.xz
linux-90d469067d0808ddbd9be2c97a4a8e14037b5e46.zip
drm/i915: Set crtc_state->active to false when CRTC is disabled (v2)
With the recent modeset internal rework, we wind up setting crtc_state->enable to false, but leave crtc_state->active as true, which is incorrect. This mismatch gets caught by drm_atomic_crtc_check() and causes subsequent atomic operations (such as plane updates while the CRTC is disabled) to fail. Bisect points to commit dad9a7d6d96630182fb52aae7c3856e9e7285e13 Author: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Date: Tue Apr 21 17:13:19 2015 +0300 drm/i915: Use atomic helpers for computing changed flags as the commit that actually triggers the regression. v2: Update to alter in-flight state rather than already-committed state (first version was accidentally based on a midpoint of Ander's modeset rework series, before his final patches that add proper state swapping to the legacy modeset path). Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Testcase: igt/kms_universal_plane Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
-rw-r--r--drivers/gpu/drm/i915/intel_display.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index b5806400d40e..fd228a27a7d0 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -12340,6 +12340,7 @@ static int __intel_set_mode(struct drm_crtc *modeset_crtc,
continue;
if (!crtc_state->enable) {
+ crtc_state->active = false;
intel_crtc_disable(crtc);
} else if (crtc->state->enable) {
intel_crtc_disable_planes(crtc);