1/*
2 * Copyright 2013 Emilio L��pez
3 *
4 * Emilio L��pez <emilio@elopez.com.ar>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 * GNU General Public License for more details.
15 */
16
17#include <linux/clk-provider.h>
18#include <linux/of.h>
19#include <linux/of_address.h>
20
21#define SUN4I_CODEC_GATE	31
22
23static void __init sun4i_codec_clk_setup(struct device_node *node)
24{
25	struct clk *clk;
26	const char *clk_name = node->name, *parent_name;
27	void __iomem *reg;
28
29	reg = of_io_request_and_map(node, 0, of_node_full_name(node));
30	if (IS_ERR(reg))
31		return;
32
33	of_property_read_string(node, "clock-output-names", &clk_name);
34	parent_name = of_clk_get_parent_name(node, 0);
35
36	clk = clk_register_gate(NULL, clk_name, parent_name,
37				CLK_SET_RATE_PARENT, reg,
38				SUN4I_CODEC_GATE, 0, NULL);
39
40	if (!IS_ERR(clk))
41		of_clk_add_provider(node, of_clk_src_simple_get, clk);
42}
43CLK_OF_DECLARE(sun4i_codec, "allwinner,sun4i-a10-codec-clk",
44	       sun4i_codec_clk_setup);
45