1 /*
2  * Copyright (C) 2016 Linaro.
3  * Viresh Kumar <viresh.kumar@linaro.org>
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation.
8  */
9 
10 #include <linux/err.h>
11 #include <linux/of.h>
12 #include <linux/platform_device.h>
13 
14 #include "cpufreq-dt.h"
15 
16 static const struct of_device_id machines[] __initconst = {
17 	{ .compatible = "allwinner,sun4i-a10", },
18 	{ .compatible = "allwinner,sun5i-a10s", },
19 	{ .compatible = "allwinner,sun5i-a13", },
20 	{ .compatible = "allwinner,sun5i-r8", },
21 	{ .compatible = "allwinner,sun6i-a31", },
22 	{ .compatible = "allwinner,sun6i-a31s", },
23 	{ .compatible = "allwinner,sun7i-a20", },
24 	{ .compatible = "allwinner,sun8i-a23", },
25 	{ .compatible = "allwinner,sun8i-a33", },
26 	{ .compatible = "allwinner,sun8i-a83t", },
27 	{ .compatible = "allwinner,sun8i-h3", },
28 
29 	{ .compatible = "hisilicon,hi6220", },
30 
31 	{ .compatible = "fsl,imx27", },
32 	{ .compatible = "fsl,imx51", },
33 	{ .compatible = "fsl,imx53", },
34 	{ .compatible = "fsl,imx7d", },
35 
36 	{ .compatible = "marvell,berlin", },
37 
38 	{ .compatible = "samsung,exynos3250", },
39 	{ .compatible = "samsung,exynos4210", },
40 	{ .compatible = "samsung,exynos4212", },
41 	{ .compatible = "samsung,exynos4412", },
42 	{ .compatible = "samsung,exynos5250", },
43 #ifndef CONFIG_BL_SWITCHER
44 	{ .compatible = "samsung,exynos5420", },
45 	{ .compatible = "samsung,exynos5433", },
46 	{ .compatible = "samsung,exynos5800", },
47 #endif
48 
49 	{ .compatible = "renesas,emev2", },
50 	{ .compatible = "renesas,r7s72100", },
51 	{ .compatible = "renesas,r8a73a4", },
52 	{ .compatible = "renesas,r8a7740", },
53 	{ .compatible = "renesas,r8a7778", },
54 	{ .compatible = "renesas,r8a7779", },
55 	{ .compatible = "renesas,r8a7790", },
56 	{ .compatible = "renesas,r8a7791", },
57 	{ .compatible = "renesas,r8a7792", },
58 	{ .compatible = "renesas,r8a7793", },
59 	{ .compatible = "renesas,r8a7794", },
60 	{ .compatible = "renesas,sh73a0", },
61 
62 	{ .compatible = "rockchip,rk2928", },
63 	{ .compatible = "rockchip,rk3036", },
64 	{ .compatible = "rockchip,rk3066a", },
65 	{ .compatible = "rockchip,rk3066b", },
66 	{ .compatible = "rockchip,rk3188", },
67 	{ .compatible = "rockchip,rk3228", },
68 	{ .compatible = "rockchip,rk3288", },
69 	{ .compatible = "rockchip,rk3366", },
70 	{ .compatible = "rockchip,rk3368", },
71 	{ .compatible = "rockchip,rk3399", },
72 
73 	{ .compatible = "sigma,tango4" },
74 
75 	{ .compatible = "ti,am33xx", },
76 	{ .compatible = "ti,dra7", },
77 	{ .compatible = "ti,omap2", },
78 	{ .compatible = "ti,omap3", },
79 	{ .compatible = "ti,omap4", },
80 	{ .compatible = "ti,omap5", },
81 
82 	{ .compatible = "xlnx,zynq-7000", },
83 
84 	{ }
85 };
86 
87 static int __init cpufreq_dt_platdev_init(void)
88 {
89 	struct device_node *np = of_find_node_by_path("/");
90 	const struct of_device_id *match;
91 
92 	if (!np)
93 		return -ENODEV;
94 
95 	match = of_match_node(machines, np);
96 	of_node_put(np);
97 	if (!match)
98 		return -ENODEV;
99 
100 	return PTR_ERR_OR_ZERO(platform_device_register_data(NULL, "cpufreq-dt",
101 			       -1, match->data,
102 			       sizeof(struct cpufreq_dt_platform_data)));
103 }
104 device_initcall(cpufreq_dt_platdev_init);
105