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drm/hisilicon: Fix ADE vblank on/off handling

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Vblank turn on should be called in crtc's enable callback.
And turn off called in crtc's disable callback.

Thanks to Daniel Vetter, this bug is reported by him.

Reported-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>
This commit is contained in:
Xinliang Liu 2016-06-30 17:06:26 +08:00
parent 755ee12daf
commit 85d8747d2a
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
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@ -487,6 +487,7 @@ static void ade_crtc_enable(struct drm_crtc *crtc)
ade_set_medianoc_qos(acrtc);
ade_display_enable(acrtc);
ade_dump_regs(ctx->base);
drm_crtc_vblank_on(crtc);
acrtc->enable = true;
}
@ -498,6 +499,7 @@ static void ade_crtc_disable(struct drm_crtc *crtc)
if (!acrtc->enable)
return;
drm_crtc_vblank_off(crtc);
ade_power_down(ctx);
acrtc->enable = false;
}