From: Bo-Chen Chen Date: Thu, 1 Sep 2022 04:41:46 +0000 (+0800) Subject: drm/mediatek: dp: Determine device of next_bridge X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=86e77a1f0ae83381796d6b83f5cb33d9c6dcf6e7;p=linux.git drm/mediatek: dp: Determine device of next_bridge It's not necessary to have a next_bridge for DP device, so we add this patch to judge this. Signed-off-by: Bo-Chen Chen Reviewed-by: CK Hu Tested-by: AngeloGioacchino Del Regno Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Dmitry Osipenko Link: https://patchwork.freedesktop.org/patch/msgid/20220901044149.16782-8-rex-bc.chen@mediatek.com --- diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c index 136e131502814..e37c9185e4eca 100644 --- a/drivers/gpu/drm/mediatek/mtk_dp.c +++ b/drivers/gpu/drm/mediatek/mtk_dp.c @@ -1886,7 +1886,10 @@ static int mtk_dp_probe(struct platform_device *pdev) "failed to request dp irq resource\n"); mtk_dp->next_bridge = devm_drm_of_get_bridge(dev, dev->of_node, 1, 0); - if (IS_ERR(mtk_dp->next_bridge)) + if (IS_ERR(mtk_dp->next_bridge) && + PTR_ERR(mtk_dp->next_bridge) == -ENODEV) + mtk_dp->next_bridge = NULL; + else if (IS_ERR(mtk_dp->next_bridge)) return dev_err_probe(dev, PTR_ERR(mtk_dp->next_bridge), "Failed to get bridge\n");