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drm/mediatek: dp: Determine device of next_bridge

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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>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220901044149.16782-8-rex-bc.chen@mediatek.com
This commit is contained in:
Bo-Chen Chen 2022-09-01 12:41:46 +08:00 committed by Dmitry Osipenko
parent 16075ed148
commit 86e77a1f0a
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/mediatek/mtk_dp.c
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@ -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");