xref: /openbmc/linux/drivers/clk/uniphier/clk-uniphier-fixed-rate.c (revision 4f2c0a4acffbec01079c28f839422e64ddeff004)
1c942fddfSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later
2734d82f4SMasahiro Yamada /*
3734d82f4SMasahiro Yamada  * Copyright (C) 2016 Socionext Inc.
4734d82f4SMasahiro Yamada  *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
5734d82f4SMasahiro Yamada  */
6734d82f4SMasahiro Yamada 
7734d82f4SMasahiro Yamada #include <linux/clk-provider.h>
8734d82f4SMasahiro Yamada #include <linux/device.h>
9734d82f4SMasahiro Yamada 
10734d82f4SMasahiro Yamada #include "clk-uniphier.h"
11734d82f4SMasahiro Yamada 
uniphier_clk_register_fixed_rate(struct device * dev,const char * name,const struct uniphier_clk_fixed_rate_data * data)12734d82f4SMasahiro Yamada struct clk_hw *uniphier_clk_register_fixed_rate(struct device *dev,
13734d82f4SMasahiro Yamada 						const char *name,
14734d82f4SMasahiro Yamada 				const struct uniphier_clk_fixed_rate_data *data)
15734d82f4SMasahiro Yamada {
16734d82f4SMasahiro Yamada 	struct clk_fixed_rate *fixed;
17734d82f4SMasahiro Yamada 	struct clk_init_data init;
18734d82f4SMasahiro Yamada 	int ret;
19734d82f4SMasahiro Yamada 
20734d82f4SMasahiro Yamada 	/* allocate fixed-rate clock */
21734d82f4SMasahiro Yamada 	fixed = devm_kzalloc(dev, sizeof(*fixed), GFP_KERNEL);
22734d82f4SMasahiro Yamada 	if (!fixed)
23734d82f4SMasahiro Yamada 		return ERR_PTR(-ENOMEM);
24734d82f4SMasahiro Yamada 
25734d82f4SMasahiro Yamada 	init.name = name;
26734d82f4SMasahiro Yamada 	init.ops = &clk_fixed_rate_ops;
27*ca85a667SKunihiko Hayashi 	init.flags = 0;
28734d82f4SMasahiro Yamada 	init.parent_names = NULL;
29734d82f4SMasahiro Yamada 	init.num_parents = 0;
30734d82f4SMasahiro Yamada 
31734d82f4SMasahiro Yamada 	fixed->fixed_rate = data->fixed_rate;
32734d82f4SMasahiro Yamada 	fixed->hw.init = &init;
33734d82f4SMasahiro Yamada 
34734d82f4SMasahiro Yamada 	ret = devm_clk_hw_register(dev, &fixed->hw);
35734d82f4SMasahiro Yamada 	if (ret)
36734d82f4SMasahiro Yamada 		return ERR_PTR(ret);
37734d82f4SMasahiro Yamada 
38734d82f4SMasahiro Yamada 	return &fixed->hw;
39734d82f4SMasahiro Yamada }
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