clk: sprd: support to get regmap from parent node (f95e8c79) · Commits · 戴 / test

Some SC9863a clock nodes would be the child of a syscon node, clocks can use the regmap of syscon device directly for this kind of cases. Signed-off-by:

Chunyan Zhang <chunyan.zhang@unisoc.com> Link: https://lkml.kernel.org/r/20200304072730.9193-7-zhang.lyra@gmail.com Signed-off-by:

Stephen Boyd <sboyd@kernel.org>

drivers/clk/sprd/common.c

+9 −1

Original line number	Diff line number	Diff line
		@@ -40,7 +40,8 @@ int sprd_clk_regmap_init(struct platform_device *pdev,
		const struct sprd_clk_desc *desc)
		{
		void __iomem *base;
		struct device_node *node = pdev->dev.of_node;
		struct device *dev = &pdev->dev;
		struct device_node *node = dev->of_node;
		struct regmap *regmap;

		if (of_find_property(node, "sprd,syscon", NULL)) {
		@@ -49,6 +50,13 @@ int sprd_clk_regmap_init(struct platform_device *pdev,
		pr_err("%s: failed to get syscon regmap\n", __func__);
		return PTR_ERR(regmap);
		}
		} else if (of_device_is_compatible(of_get_parent(dev->of_node),
		"syscon")) {
		regmap = device_node_to_regmap(of_get_parent(dev->of_node));
		if (IS_ERR(regmap)) {
		dev_err(dev, "failed to get regmap from its parent.\n");
		return PTR_ERR(regmap);
		}
		} else {
		base = devm_platform_ioremap_resource(pdev, 0);
		if (IS_ERR(base))

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