36 lines · c
1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Copyright 2013 Emilio López4 *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 3113 14static 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}34CLK_OF_DECLARE(sun4i_codec, "allwinner,sun4i-a10-codec-clk",35 sun4i_codec_clk_setup);36