From mboxrd@z Thu Jan 1 00:00:00 1970 From: ck.hu@mediatek.com (CK Hu) Date: Thu, 29 Sep 2016 13:36:23 +0800 Subject: [PATCH 1/2] drm/mediatek: set vblank_disable_allowed to true In-Reply-To: <1475119789-64619-2-git-send-email-bibby.hsieh@mediatek.com> References: <1475119789-64619-1-git-send-email-bibby.hsieh@mediatek.com> <1475119789-64619-2-git-send-email-bibby.hsieh@mediatek.com> Message-ID: <1475127383.18843.4.camel@mtksdaap41> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Acked-by: CK Hu On Thu, 2016-09-29 at 11:29 +0800, Bibby Hsieh wrote: > MTK DRM driver didn't set the vblank_disable_allowed to > true, it cause that the irq_handler is called every > 16.6 ms (every vblank) when the display didn't be updated. > > Signed-off-by: Bibby Hsieh > --- > drivers/gpu/drm/mediatek/mtk_drm_drv.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c > index eebb7d8..941ec5f 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c > +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c > @@ -200,6 +200,7 @@ static int mtk_drm_kms_init(struct drm_device *drm) > if (ret < 0) > goto err_component_unbind; > > + drm->vblank_disable_allowed = true; > drm_kms_helper_poll_init(drm); > drm_mode_config_reset(drm); >