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701190fd | 1 | /* |
f6272170 | 2 | * Intel Low Power Subsystem clocks. |
701190fd MW |
3 | * |
4 | * Copyright (C) 2013, Intel Corporation | |
5 | * Authors: Mika Westerberg <mika.westerberg@linux.intel.com> | |
6 | * Heikki Krogerus <heikki.krogerus@linux.intel.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | */ | |
12 | ||
701190fd MW |
13 | #include <linux/clk-provider.h> |
14 | #include <linux/err.h> | |
15 | #include <linux/module.h> | |
b59cc200 | 16 | #include <linux/platform_data/clk-lpss.h> |
701190fd MW |
17 | #include <linux/platform_device.h> |
18 | ||
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19 | static int lpt_clk_probe(struct platform_device *pdev) |
20 | { | |
b59cc200 | 21 | struct lpss_clk_data *drvdata; |
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22 | struct clk *clk; |
23 | ||
b59cc200 RW |
24 | drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL); |
25 | if (!drvdata) | |
26 | return -ENOMEM; | |
27 | ||
701190fd | 28 | /* LPSS free running clock */ |
b59cc200 RW |
29 | drvdata->name = "lpss_clk"; |
30 | clk = clk_register_fixed_rate(&pdev->dev, drvdata->name, NULL, | |
553b4858 | 31 | 0, 100000000); |
701190fd MW |
32 | if (IS_ERR(clk)) |
33 | return PTR_ERR(clk); | |
34 | ||
b59cc200 RW |
35 | drvdata->clk = clk; |
36 | platform_set_drvdata(pdev, drvdata); | |
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37 | return 0; |
38 | } | |
39 | ||
40 | static struct platform_driver lpt_clk_driver = { | |
41 | .driver = { | |
42 | .name = "clk-lpt", | |
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43 | }, |
44 | .probe = lpt_clk_probe, | |
45 | }; | |
46 | ||
f58b082a | 47 | int __init lpt_clk_init(void) |
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48 | { |
49 | return platform_driver_register(&lpt_clk_driver); | |
50 | } |