[PATCH v2 05/13] drm/mediatek: dpi use new API for finding bridge

[Bibby Hsieh]

From: chunhui dai <chunhui....@mediatek.com>

Using new API for finding bridge.

Signed-off-by: chunhui dai <chunhui....@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_dpi.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c 
b/drivers/gpu/drm/mediatek/mtk_dpi.c
index 3758cfeb586b..ed2c153c70a2 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -14,6 +14,7 @@
 #include <drm/drmP.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_crtc_helper.h>
+#include <drm/drm_of.h>
 #include <linux/kernel.h>
 #include <linux/component.h>
 #include <linux/platform_device.h>
@@ -708,7 +709,6 @@ 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;
        const struct of_device_id *match;
        int ret;
@@ -758,16 +758,13 @@ 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);
-
-       dpi->bridge = of_drm_find_bridge(bridge_node);
-       of_node_put(bridge_node);
-       if (!dpi->bridge)
+       ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0,
+                                         NULL, &dpi->bridge);
+       if (ret) {
+               dev_err(dev, "Failed to find panel or bridge: %d\n", ret);
                return -EPROBE_DEFER;
+       }
+       dev_info(dev, "Found bridge node: %pOF\n", dpi->bridge);
 
        comp_id = mtk_ddp_comp_get_id(dev->of_node, MTK_DPI);
        if (comp_id < 0) {
-- 
2.12.5.2.gbdf23ab