1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright 2013 Emilio López
4 *
5 * Emilio López <emilio@elopez.com.ar>
6 */
7
8 #include <linux/clk-provider.h>
9 #include <linux/of.h>
10 #include <linux/of_address.h>
11
12 #define SUN4I_CODEC_GATE 31
13
sun4i_codec_clk_setup(struct device_node * node)14 static void __init sun4i_codec_clk_setup(struct device_node *node)
15 {
16 struct clk *clk;
17 const char *clk_name = node->name, *parent_name;
18 void __iomem *reg;
19
20 reg = of_io_request_and_map(node, 0, of_node_full_name(node));
21 if (IS_ERR(reg))
22 return;
23
24 of_property_read_string(node, "clock-output-names", &clk_name);
25 parent_name = of_clk_get_parent_name(node, 0);
26
27 clk = clk_register_gate(NULL, clk_name, parent_name,
28 CLK_SET_RATE_PARENT, reg,
29 SUN4I_CODEC_GATE, 0, NULL);
30
31 if (!IS_ERR(clk))
32 of_clk_add_provider(node, of_clk_src_simple_get, clk);
33 }
34 CLK_OF_DECLARE(sun4i_codec, "allwinner,sun4i-a10-codec-clk",
35 sun4i_codec_clk_setup);
36