1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * Copyright (C) 2016 Socionext Inc.
4  *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
5  */
6 
7 #include <linux/clk-provider.h>
8 #include <linux/device.h>
9 
10 #include "clk-uniphier.h"
11 
uniphier_clk_register_fixed_factor(struct device * dev,const char * name,const struct uniphier_clk_fixed_factor_data * data)12 struct clk_hw *uniphier_clk_register_fixed_factor(struct device *dev,
13 						  const char *name,
14 			const struct uniphier_clk_fixed_factor_data *data)
15 {
16 	struct clk_fixed_factor *fix;
17 	struct clk_init_data init;
18 	int ret;
19 
20 	fix = devm_kzalloc(dev, sizeof(*fix), GFP_KERNEL);
21 	if (!fix)
22 		return ERR_PTR(-ENOMEM);
23 
24 	init.name = name;
25 	init.ops = &clk_fixed_factor_ops;
26 	init.flags = data->parent_name ? CLK_SET_RATE_PARENT : 0;
27 	init.parent_names = data->parent_name ? &data->parent_name : NULL;
28 	init.num_parents = data->parent_name ? 1 : 0;
29 
30 	fix->mult = data->mult;
31 	fix->div = data->div;
32 	fix->hw.init = &init;
33 
34 	ret = devm_clk_hw_register(dev, &fix->hw);
35 	if (ret)
36 		return ERR_PTR(ret);
37 
38 	return &fix->hw;
39 }
40