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 | |
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(device: node, index: 0, name: of_node_full_name(np: node)); |
21 | if (IS_ERR(ptr: reg)) |
22 | return; |
23 | |
24 | of_property_read_string(np: node, propname: "clock-output-names" , out_string: &clk_name); |
25 | parent_name = of_clk_get_parent_name(np: node, index: 0); |
26 | |
27 | clk = clk_register_gate(NULL, name: clk_name, parent_name, |
28 | CLK_SET_RATE_PARENT, reg, |
29 | SUN4I_CODEC_GATE, clk_gate_flags: 0, NULL); |
30 | |
31 | if (!IS_ERR(ptr: clk)) |
32 | of_clk_add_provider(np: node, clk_src_get: of_clk_src_simple_get, data: clk); |
33 | } |
34 | CLK_OF_DECLARE(sun4i_codec, "allwinner,sun4i-a10-codec-clk" , |
35 | sun4i_codec_clk_setup); |
36 | |