/*
   * Copyright 2013 Emilio López
   *
   * Emilio López <emilio@elopez.com.ar>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   */
  
  #include <linux/clk-provider.h>
  #include <linux/of.h>
  #include <linux/of_address.h>
  
  #define SUN4I_CODEC_GATE	31
  
  static void __init sun4i_codec_clk_setup(struct device_node *node)
  {
  	struct clk *clk;
  	const char *clk_name = node->name, *parent_name;
  	void __iomem *reg;
  
  	reg = of_io_request_and_map(node, 0, of_node_full_name(node));
  	if (IS_ERR(reg))
  		return;
  
  	of_property_read_string(node, "clock-output-names", &clk_name);
  	parent_name = of_clk_get_parent_name(node, 0);
  
  	clk = clk_register_gate(NULL, clk_name, parent_name,
  				CLK_SET_RATE_PARENT, reg,
  				SUN4I_CODEC_GATE, 0, NULL);
  
  	if (!IS_ERR(clk))
  		of_clk_add_provider(node, of_clk_src_simple_get, clk);
  }
  CLK_OF_DECLARE(sun4i_codec, "allwinner,sun4i-a10-codec-clk",
  	       sun4i_codec_clk_setup);