change otg to host mode

hc

2024-05-11 04dd17822334871b23ea2862f7798fb0e0007777

 kernel/drivers/clk/sprd/common.c
..
..
@@ -17,7 +17,6 @@
17
17
 	.reg_bits	= 32,
18
18
 	.reg_stride	= 4,
19
19
 	.val_bits	= 32,
20
-	.max_register	= 0xffff,
21
20
 	.fast_io	= true,
22
21
 };
23
22
 
..
..
@@ -40,8 +39,11 @@
40
39
 			 const struct sprd_clk_desc *desc)
41
40
 {
42
41
 	void __iomem *base;
43
-	struct device_node *node = pdev->dev.of_node;
42
+	struct device *dev = &pdev->dev;
43
+	struct device_node *node = dev->of_node, *np;
44
44
 	struct regmap *regmap;
45
+	struct resource *res;
46
+	struct regmap_config reg_config = sprdclk_regmap_config;
45
47
 
46
48
 	if (of_find_property(node, "sprd,syscon", NULL)) {
47
49
 		regmap = syscon_regmap_lookup_by_phandle(node, "sprd,syscon");
..
..
@@ -49,11 +51,24 @@
49
51
 			pr_err("%s: failed to get syscon regmap\n", __func__);
50
52
 			return PTR_ERR(regmap);
51
53
 		}
54
+	} else if (of_device_is_compatible(np =	of_get_parent(node), "syscon") ||
55
+		   (of_node_put(np), 0)) {
56
+		regmap = device_node_to_regmap(np);
57
+		of_node_put(np);
58
+		if (IS_ERR(regmap)) {
59
+			dev_err(dev, "failed to get regmap from its parent.\n");
60
+			return PTR_ERR(regmap);
61
+		}
52
62
 	} else {
53
-		base = of_iomap(node, 0);
63
+		base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
64
+		if (IS_ERR(base))
65
+			return PTR_ERR(base);
66
+
67
+		reg_config.max_register = resource_size(res) - reg_config.reg_stride;
68
+
54
69
 		regmap = devm_regmap_init_mmio(&pdev->dev, base,
55
-					       &sprdclk_regmap_config);
56
-		if (IS_ERR_OR_NULL(regmap)) {
70
+					       &reg_config);
71
+		if (IS_ERR(regmap)) {
57
72
 			pr_err("failed to init regmap\n");
58
73
 			return PTR_ERR(regmap);
59
74
 		}