1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Intel Low Power Subsystem clocks.
4 *
5 * Copyright (C) 2013, Intel Corporation
6 * Authors: Mika Westerberg <mika.westerberg@linux.intel.com>
7 *	    Heikki Krogerus <heikki.krogerus@linux.intel.com>
8 */
9
10#include <linux/clk-provider.h>
11#include <linux/err.h>
12#include <linux/module.h>
13#include <linux/platform_data/x86/clk-lpss.h>
14#include <linux/platform_device.h>
15
16static int lpss_atom_clk_probe(struct platform_device *pdev)
17{
18	struct lpss_clk_data *drvdata;
19	struct clk *clk;
20
21	drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL);
22	if (!drvdata)
23		return -ENOMEM;
24
25	/* LPSS free running clock */
26	drvdata->name = "lpss_clk";
27	clk = clk_register_fixed_rate(&pdev->dev, drvdata->name, NULL,
28				      0, 100000000);
29	if (IS_ERR(clk))
30		return PTR_ERR(clk);
31
32	drvdata->clk = clk;
33	platform_set_drvdata(pdev, drvdata);
34	return 0;
35}
36
37static struct platform_driver lpss_atom_clk_driver = {
38	.driver = {
39		.name = "clk-lpss-atom",
40	},
41	.probe = lpss_atom_clk_probe,
42};
43
44int __init lpss_atom_clk_init(void)
45{
46	return platform_driver_register(&lpss_atom_clk_driver);
47}
48