[PATCH v17 07/10] drm/mediatek: dp: Determine device of next_bridge

Bo-Chen Chen
2022-09-01T04:42:05Z

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 <rex-bc.chen@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_dp.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c
index 136e13150281..e37c9185e4ec 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");

--
2.18.0