enable docker ppp

hc

2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87

 kernel/drivers/clk/sprd/common.c
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@@ -40,7 +40,8 @@
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 			 const struct sprd_clk_desc *desc)
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 {
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 	void __iomem *base;
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-	struct device_node *node = pdev->dev.of_node;
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+	struct device *dev = &pdev->dev;
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+	struct device_node *node = dev->of_node, *np;
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 	struct regmap *regmap;
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 	if (of_find_property(node, "sprd,syscon", NULL)) {
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@@ -49,11 +50,22 @@
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 			pr_err("%s: failed to get syscon regmap\n", __func__);
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 			return PTR_ERR(regmap);
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 		}
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+	} else if (of_device_is_compatible(np =	of_get_parent(node), "syscon") ||
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+		   (of_node_put(np), 0)) {
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+		regmap = device_node_to_regmap(np);
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+		of_node_put(np);
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+		if (IS_ERR(regmap)) {
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+			dev_err(dev, "failed to get regmap from its parent.\n");
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+			return PTR_ERR(regmap);
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+		}
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 	} else {
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-		base = of_iomap(node, 0);
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+		base = devm_platform_ioremap_resource(pdev, 0);
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+		if (IS_ERR(base))
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+			return PTR_ERR(base);
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+
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 		regmap = devm_regmap_init_mmio(&pdev->dev, base,
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 					       &sprdclk_regmap_config);
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-		if (IS_ERR_OR_NULL(regmap)) {
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+		if (IS_ERR(regmap)) {
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 			pr_err("failed to init regmap\n");
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 			return PTR_ERR(regmap);
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 		}