1 /*
2  * Copyright (C) 2016 Socionext Inc.
3  *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
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 as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  */
15 
16 #include <linux/clk-provider.h>
17 #include <linux/device.h>
18 
19 #include "clk-uniphier.h"
20 
21 struct clk_hw *uniphier_clk_register_fixed_factor(struct device *dev,
22 						  const char *name,
23 			const struct uniphier_clk_fixed_factor_data *data)
24 {
25 	struct clk_fixed_factor *fix;
26 	struct clk_init_data init;
27 	int ret;
28 
29 	fix = devm_kzalloc(dev, sizeof(*fix), GFP_KERNEL);
30 	if (!fix)
31 		return ERR_PTR(-ENOMEM);
32 
33 	init.name = name;
34 	init.ops = &clk_fixed_factor_ops;
35 	init.flags = data->parent_name ? CLK_SET_RATE_PARENT : 0;
36 	init.parent_names = data->parent_name ? &data->parent_name : NULL;
37 	init.num_parents = data->parent_name ? 1 : 0;
38 
39 	fix->mult = data->mult;
40 	fix->div = data->div;
41 	fix->hw.init = &init;
42 
43 	ret = devm_clk_hw_register(dev, &fix->hw);
44 	if (ret)
45 		return ERR_PTR(ret);
46 
47 	return &fix->hw;
48 }
49