From mboxrd@z Thu Jan 1 00:00:00 1970 From: CK Hu Subject: Re: [PATCH v3 8/8] drm/mediatek: add third ddp path Date: Fri, 25 May 2018 13:00:25 +0800 Message-ID: <1527224425.27165.27.camel@mtksdaap41> References: <1527215665-11937-1-git-send-email-stu.hsieh@mediatek.com> <1527215665-11937-9-git-send-email-stu.hsieh@mediatek.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1527215665-11937-9-git-send-email-stu.hsieh@mediatek.com> Sender: linux-kernel-owner@vger.kernel.org To: stu.hsieh@mediatek.com Cc: Philipp Zabel , David Airlie , Rob Herring , Mark Rutland , Matthias Brugger , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, srv_heupstream@mediatek.com List-Id: devicetree@vger.kernel.org Hi, Stu: On Fri, 2018-05-25 at 10:34 +0800, stu.hsieh@mediatek.com wrote: > From: Stu Hsieh > > This patch create third crtc by third ddp path > Apply this patch before the patch 'Add support for mediatek SOC MT2712' because this patch is necessary for mt2712. > Signed-off-by: Stu Hsieh > --- > drivers/gpu/drm/mediatek/mtk_drm_drv.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c > index b32c4cc8d051..3a866e1d6af4 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c > +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c > @@ -267,6 +267,11 @@ static int mtk_drm_kms_init(struct drm_device *drm) > if (ret < 0) > goto err_component_unbind; > > + ret = mtk_drm_crtc_create(drm, private->data->third_path, > + private->data->third_len); I think you should prevent doing this for mt8173 and mt2701 because that two SoC has only two ddp path. Regards, CK > + if (ret < 0) > + goto err_component_unbind; > + > /* Use OVL device for all DMA memory allocations */ > np = private->comp_node[private->data->main_path[0]] ?: > private->comp_node[private->data->ext_path[0]];