| Message ID | 1475119789-64619-3-git-send-email-bibby.hsieh@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Acked-by: CK Hu <ck.hu@mediatek.com> On Thu, 2016-09-29 at 11:29 +0800, Bibby Hsieh wrote: > To make sure that the first vblank IRQ after enabling > vblank isn't too short or immediate, we have to clear > the IRQ status before enable OVL interrupt. > > Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com> > --- > drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c > index 019b7ca..f75c5b5 100644 > --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c > +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c > @@ -80,6 +80,7 @@ static void mtk_ovl_enable_vblank(struct mtk_ddp_comp *comp, > ddp_comp); > > priv->crtc = crtc; > + writel(0x0, comp->regs + DISP_REG_OVL_INTSTA); > writel_relaxed(OVL_FME_CPL_INT, comp->regs + DISP_REG_OVL_INTEN); > } >
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c index 019b7ca..f75c5b5 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c @@ -80,6 +80,7 @@ static void mtk_ovl_enable_vblank(struct mtk_ddp_comp *comp, ddp_comp); priv->crtc = crtc; + writel(0x0, comp->regs + DISP_REG_OVL_INTSTA); writel_relaxed(OVL_FME_CPL_INT, comp->regs + DISP_REG_OVL_INTEN); }
To make sure that the first vblank IRQ after enabling vblank isn't too short or immediate, we have to clear the IRQ status before enable OVL interrupt. Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com> --- drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 1 + 1 file changed, 1 insertion(+)