Thread (9 messages) 9 messages, 3 authors, 2023-08-15

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

From: Andi Shyti <andi.shyti@kernel.org>
Date: 2023-08-07 23:14:06
Also in: linux-devicetree, linux-media, linux-samsung-soc, lkml

Hi Krzysztof,

[...]
+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.

... and... "*please* update your DTB", the user might get upset
and out of sheer spite, decides not to do it – just because! :)

Andi
+	}
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