video: bridge: tc358768: convert to use of_graph

Use OF graph parsing helpers to get linked panel.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>

diff --git a/drivers/video/bridge/tc358768.c b/drivers/video/bridge/tc358768.c
index b5d45e0..15bee19 100644 (file)
--- a/drivers/video/bridge/tc358768.c
+++ b/drivers/video/bridge/tc358768.c
@@ -6,6 +6,7 @@
 
 #include <clk.h>
 #include <dm.h>
+#include <dm/ofnode_graph.h>
 #include <i2c.h>
 #include <log.h>
 #include <mipi_display.h>
@@ -877,6 +878,26 @@ static int tc358768_panel_timings(struct udevice *dev,
        return 0;
 }
 
+static int tc358768_get_panel(struct udevice *dev)
+{
+       struct tc358768_priv *priv = dev_get_priv(dev);
+       int i, ret;
+
+       u32 num = ofnode_graph_get_port_count(dev_ofnode(dev));
+
+       for (i = 0; i < num; i++) {
+               ofnode remote = ofnode_graph_get_remote_node(dev_ofnode(dev), i, -1);
+
+               ret = uclass_get_device_by_ofnode(UCLASS_PANEL, remote,
+                                                 &priv->panel);
+               if (!ret)
+                       return 0;
+       }
+
+       /* If this point is reached, no panels were found */
+       return -ENODEV;
+}
+
 static int tc358768_setup(struct udevice *dev)
 {
        struct tc358768_priv *priv = dev_get_priv(dev);
@@ -893,11 +914,10 @@ static int tc358768_setup(struct udevice *dev)
                return ret;
        }
 
-       ret = uclass_get_device_by_phandle(UCLASS_PANEL, dev,
-                                          "panel", &priv->panel);
+       ret = tc358768_get_panel(dev);
        if (ret) {
-               log_debug("%s: Cannot get panel: ret=%d\n", __func__, ret);
-               return log_ret(ret);
+               log_debug("%s: panel not found, ret %d\n", __func__, ret);
+               return ret;
        }
 
        panel_get_display_timing(priv->panel, &priv->timing);
@@ -976,6 +996,7 @@ U_BOOT_DRIVER(tc358768) = {
        .id             = UCLASS_VIDEO_BRIDGE,
        .of_match       = tc358768_ids,
        .ops            = &tc358768_ops,
+       .bind           = dm_scan_fdt_dev,
        .probe          = tc358768_probe,
        .priv_auto      = sizeof(struct tc358768_priv),
 };