On 29/08/2024 08:45, Jammy Huang wrote:

ASPEED BMC IC has 2 different display engines. Please find AST2600's
datasheet to get detailed information.

...

 
+/*
+ * Get regmap without checking res, such as clk/reset, that could lead to
+ * conflict.
+ */
+static struct regmap *aspeed_regmap_lookup(struct device_node *np, const char *property)
+{
+	struct device_node *syscon_np __free(device_node) = of_parse_phandle(np, property, 0);
+
+	if (!syscon_np)
+		return ERR_PTR(-ENODEV);
+
+	return device_node_to_regmap(syscon_np);
+}
+
 static int aspeed_video_init(struct aspeed_video *video)
 {
 	int irq;
 	int rc;
 	struct device *dev = video->dev;
 
+	video->scu = aspeed_regmap_lookup(dev->of_node, "aspeed,scu");
+	video->gfx = aspeed_regmap_lookup(dev->of_node, "aspeed,gfx");

So that's a new property? Not related to conversion? Then split the
patches. Conversion is one logical change. Adding properties for new
hardware is completely different.

Best regards,
Krzysztof