Commit 86e77a1f authored by Bo-Chen Chen's avatar Bo-Chen Chen Committed by Dmitry Osipenko
Browse files

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: default avatarBo-Chen Chen <rex-bc.chen@mediatek.com>
Reviewed-by: default avatarCK Hu <ck.hu@mediatek.com>
Tested-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: default avatarDmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220901044149.16782-8-rex-bc.chen@mediatek.com
parent 16075ed1

drivers/gpu/drm/mediatek/mtk_dp.c

+4 −1
Original line number Diff line number Diff line
@@ -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");