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drm/imx: fix stale vblank timestamp after a modeset
This series fixes stale vblank timestamps in the first event sent after a crtc was disabled. The core now is notified via drm_crtc_vblank_off before sending the last pending event in atomic_disable. If the crtc is reenabled right away during to a modeset, the event is not sent at all, as the next vblank will take care of it. -----BEGIN PGP SIGNATURE----- iI0EABYIADUWIQRRO6F6WdpH1R0vGibVhaclGDdiwAUCXR3UqxcccC56YWJlbEBw ZW5ndXRyb25peC5kZQAKCRDVhaclGDdiwFogAQCE6HPaBbBOHJBT5hU4ysJG1Qge GuS/OKB2ZUDyrf3a1wEAy1qa+49x68a2coFksD571VDf+Pm85mRk+NrKl1oFFQo= =Bs9J -----END PGP SIGNATURE----- Merge tag 'imx-drm-fixes-2019-07-04' of git://git.pengutronix.de/git/pza/linux into drm-fixes drm/imx: fix stale vblank timestamp after a modeset This series fixes stale vblank timestamps in the first event sent after a crtc was disabled. The core now is notified via drm_crtc_vblank_off before sending the last pending event in atomic_disable. If the crtc is reenabled right away during to a modeset, the event is not sent at all, as the next vblank will take care of it. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Philipp Zabel <p.zabel@pengutronix.de> Link: https://patchwork.freedesktop.org/patch/msgid/1562237119.6641.16.camel@pengutronix.de
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commit
a0b2cf792a
1 changed files with 3 additions and 3 deletions
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@ -91,14 +91,14 @@ static void ipu_crtc_atomic_disable(struct drm_crtc *crtc,
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ipu_dc_disable(ipu);
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ipu_prg_disable(ipu);
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drm_crtc_vblank_off(crtc);
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spin_lock_irq(&crtc->dev->event_lock);
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if (crtc->state->event) {
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if (crtc->state->event && !crtc->state->active) {
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drm_crtc_send_vblank_event(crtc, crtc->state->event);
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crtc->state->event = NULL;
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}
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spin_unlock_irq(&crtc->dev->event_lock);
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drm_crtc_vblank_off(crtc);
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}
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static void imx_drm_crtc_reset(struct drm_crtc *crtc)
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