| Message ID | 20220901044149.16782-8-rex-bc.chen@mediatek.com (mailing list archive) |
|---|---|
| State | Handled Elsewhere |
| Headers | show |
| Series | Add MT8195 DisplayPort driver | expand |
Hi, Bo-Chen: On Thu, 2022-09-01 at 12:41 +0800, Bo-Chen Chen wrote: > It's not necessary to have a next_bridge for DP device, so we add > this > patch to judge this. Reviewed-by: CK Hu <ck.hu@mediatek.com> > > 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"); >
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");
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(-)