diff options
Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_dpi.c')
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_dpi.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c index a08d20654954..20a9d589fd75 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi.c +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c @@ -704,6 +704,20 @@ static int mtk_dpi_bridge_attach(struct drm_bridge *bridge, enum drm_bridge_attach_flags flags) { struct mtk_dpi *dpi = bridge_to_dpi(bridge); + int ret; + + dpi->next_bridge = devm_drm_of_get_bridge(dpi->dev, dpi->dev->of_node, 1, -1); + if (IS_ERR(dpi->next_bridge)) { + ret = PTR_ERR(dpi->next_bridge); + if (ret == -EPROBE_DEFER) + return ret; + + /* Old devicetree has only one endpoint */ + dpi->next_bridge = devm_drm_of_get_bridge(dpi->dev, dpi->dev->of_node, 0, 0); + if (IS_ERR(dpi->next_bridge)) + return dev_err_probe(dpi->dev, PTR_ERR(dpi->next_bridge), + "Failed to get bridge\n"); + } return drm_bridge_attach(bridge->encoder, dpi->next_bridge, &dpi->bridge, flags); @@ -1058,13 +1072,6 @@ static int mtk_dpi_probe(struct platform_device *pdev) if (dpi->irq < 0) return dpi->irq; - dpi->next_bridge = devm_drm_of_get_bridge(dev, dev->of_node, 0, 0); - if (IS_ERR(dpi->next_bridge)) - return dev_err_probe(dev, PTR_ERR(dpi->next_bridge), - "Failed to get bridge\n"); - - dev_info(dev, "Found bridge node: %pOF\n", dpi->next_bridge->of_node); - platform_set_drvdata(pdev, dpi); dpi->bridge.funcs = &mtk_dpi_bridge_funcs; |