Re: [PATCH] drm: bridge: ldb: add support for using channel 1 only

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On 4/5/23 09:30, Luca Ceresoli wrote:

[...]

@@ -311,10 +314,23 @@ static int fsl_ldb_probe(struct platform_device *pdev)
   	if (IS_ERR(fsl_ldb->regmap))
   		return PTR_ERR(fsl_ldb->regmap);
- /* Locate the panel DT node. */
-	panel_node = of_graph_get_remote_node(dev->of_node, 1, 0);
-	if (!panel_node)
-		return -ENXIO;
+	/* Locate the remote ports and the panel node */
+	remote1 = of_graph_get_remote_node(dev->of_node, 1, 0);
+	remote2 = of_graph_get_remote_node(dev->of_node, 2, 0);
+	fsl_ldb->ch0_enabled = (remote1 != NULL);
+	fsl_ldb->ch1_enabled = (remote2 != NULL);
+	panel_node = of_node_get(remote1 ? remote1 : remote2);

You can even do this without the middle 'remote1' I think:

panel_node = of_node_get(remote1 ? : remote2);

Apparently, but honestly with such short expressions clearly having no
side effects I think it's not helping readability.

I think even the ternary operator itself isn't helpful much, but that's a matter of taste, and I don't have a better suggestion which would improve the readability either (I tried to expand it into if()... but that looks bad too).

No need to change anything.

[...]

Thanks for the patch.



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