Re: [PATCH 2/2] drm/mediatek: clear IRQ status before enable OVL interrupt

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);

}