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drm/hisilicon: Fix ADE vblank on/off handling 

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>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20160630092300.141864-1-xinliang.liu@linaro.org
This commit is contained in:
Xinliang Liu 2016-06-30 17:23:00 +08:00 committed by Daniel Vetter
parent da82ee99ee
commit 4517cf9b87
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;
}