Re: [PATCH v2 3/3] media: exynos4-is: fimc-is: replace duplicate pmu node with phandle

On 11/08/2023 11:49, Hans Verkuil wrote:

Hi Krzysztof,

On 08/08/2023 01:13, Andi Shyti wrote:

quoted

Hi Krzysztof,

[...]

quoted

+static void __iomem *fimc_is_get_pmu_regs(struct device *dev)
+{
+	struct device_node *node;
+	void __iomem *regs;
+
+	node = of_parse_phandle(dev->of_node, "samsung,pmu-syscon", 0);
+	if (!node) {
+		dev_warn(dev, "Finding PMU node via deprecated method, update your DTB\n");
+		node = of_get_child_by_name(dev->of_node, "pmu");
+		if (!node)
+			return IOMEM_ERR_PTR(-ENODEV);

in my opinion this should be:

		...
		if (!node)
			return IOMEM_ERR_PTR(-ENODEV);

		dev_warn(dev, "Finding PMU node via deprecated method, update your DTB\n");

Because if you don't have both "samsung,pmu-syscon and "pmu" then
the warning should not be printed and you need to return -ENODEV.

I agree with Andi for this part.

The only time you want to see this message is if samsung,pmu-syscon is
missing AND pmu is present. If both are missing, then just return ENODEV as
it was before.

OK, understood. I will send a v3.

Best regards,
Krzysztof


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