blob: a8cca66f7959c8299fb21266068ac4b925c3704c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2015 Freescale Semiconductor, Inc.
* Copyright 2017 NXP
*/
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include "clk.h"
void __init s32_check_clocks(struct clk *clks[], unsigned int count)
{
unsigned int i;
for (i = 0; i < count; i++)
if (IS_ERR(clks[i]))
pr_err("S32 clk %u: register failed with %ld\n",
i, PTR_ERR(clks[i]));
}
static struct clk * __init s32_obtain_fixed_clock_from_dt(const char *name)
{
struct of_phandle_args phandle;
struct clk *clk = ERR_PTR(-ENODEV);
char *path;
path = kasprintf(GFP_KERNEL, "/clocks/%s", name);
if (!path)
return ERR_PTR(-ENOMEM);
phandle.np = of_find_node_by_path(path);
kfree(path);
if (phandle.np) {
clk = of_clk_get_from_provider(&phandle);
of_node_put(phandle.np);
}
return clk;
}
struct clk * __init s32_obtain_fixed_clock(
const char *name, unsigned long rate)
{
struct clk *clk;
clk = s32_obtain_fixed_clock_from_dt(name);
if (IS_ERR(clk))
clk = s32_clk_fixed(name, rate);
return clk;
}
|
