From bcc97daee6b8120d1ffeee0073b49bfbd3df026d Mon Sep 17 00:00:00 2001 From: chunhui dai Date: Wed, 3 Oct 2018 11:41:45 +0800 Subject: drm/mediatek: convert dpi driver to use drm_of_find_panel_or_bridge Convert dpi driver to use drm_of_find_panel_or_bridge. This changes some error messages to debug messages (in the graph core). Graph connections are often "no connects" depending on the particular board, so we want to avoid spurious messages. Plus the kernel is not a DT validator. related links: [1] https://lkml.org/lkml/2017/2/3/716 [2] https://lkml.org/lkml/2017/2/3/719 Signed-off-by: chunhui dai Signed-off-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_dpi.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) (limited to 'drivers/gpu/drm/mediatek/mtk_dpi.c') diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c index 0dbe9345fa2e..08915e1765f8 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi.c +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -668,7 +669,6 @@ static int mtk_dpi_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct mtk_dpi *dpi; struct resource *mem; - struct device_node *bridge_node; int comp_id; int ret; @@ -714,16 +714,12 @@ static int mtk_dpi_probe(struct platform_device *pdev) return -EINVAL; } - bridge_node = of_graph_get_remote_node(dev->of_node, 0, 0); - if (!bridge_node) - return -ENODEV; - - dev_info(dev, "Found bridge node: %pOF\n", bridge_node); + ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0, + NULL, &dpi->bridge); + if (ret) + return ret; - dpi->bridge = of_drm_find_bridge(bridge_node); - of_node_put(bridge_node); - if (!dpi->bridge) - return -EPROBE_DEFER; + dev_info(dev, "Found bridge node: %pOF\n", dpi->bridge->of_node); comp_id = mtk_ddp_comp_get_id(dev->of_node, MTK_DPI); if (comp_id < 0) { -- cgit v1.2.3