linuxdebug/drivers/clk/sunxi/clk-a10-codec.c

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2024-07-16 15:50:57 +02:00
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2013 Emilio López
*
* Emilio López <emilio@elopez.com.ar>
*/
#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);