50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
|
|
/*
|
|
* Copyright (c) 2018 BayLibre, SAS.
|
|
* Author: Jerome Brunet <jbrunet@baylibre.com>
|
|
*/
|
|
|
|
#include <linux/clk.h>
|
|
#include <linux/clk-provider.h>
|
|
#include <linux/device.h>
|
|
#include <linux/module.h>
|
|
#include "clk-input.h"
|
|
|
|
static const struct clk_ops meson_clk_no_ops = {};
|
|
|
|
struct clk_hw *meson_clk_hw_register_input(struct device *dev,
|
|
const char *of_name,
|
|
const char *clk_name,
|
|
unsigned long flags)
|
|
{
|
|
struct clk *parent_clk = devm_clk_get(dev, of_name);
|
|
struct clk_init_data init;
|
|
const char *parent_name;
|
|
struct clk_hw *hw;
|
|
int ret;
|
|
|
|
if (IS_ERR(parent_clk))
|
|
return (struct clk_hw *)parent_clk;
|
|
|
|
hw = devm_kzalloc(dev, sizeof(*hw), GFP_KERNEL);
|
|
if (!hw)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
parent_name = __clk_get_name(parent_clk);
|
|
init.name = clk_name;
|
|
init.ops = &meson_clk_no_ops;
|
|
init.flags = flags;
|
|
init.parent_names = &parent_name;
|
|
init.num_parents = 1;
|
|
hw->init = &init;
|
|
|
|
ret = devm_clk_hw_register(dev, hw);
|
|
|
|
return ret ? ERR_PTR(ret) : hw;
|
|
}
|
|
EXPORT_SYMBOL_GPL(meson_clk_hw_register_input);
|
|
|
|
MODULE_DESCRIPTION("Amlogic clock input helper");
|
|
MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
|
|
MODULE_LICENSE("GPL v2");
|