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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
701190fd | 2 | /* |
f6272170 | 3 | * Intel Low Power Subsystem clocks. |
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4 | * |
5 | * Copyright (C) 2013, Intel Corporation | |
6 | * Authors: Mika Westerberg <mika.westerberg@linux.intel.com> | |
7 | * Heikki Krogerus <heikki.krogerus@linux.intel.com> | |
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8 | */ |
9 | ||
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10 | #include <linux/clk-provider.h> |
11 | #include <linux/err.h> | |
12 | #include <linux/module.h> | |
a9443a63 | 13 | #include <linux/platform_data/x86/clk-lpss.h> |
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14 | #include <linux/platform_device.h> |
15 | ||
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16 | static int lpt_clk_probe(struct platform_device *pdev) |
17 | { | |
b59cc200 | 18 | struct lpss_clk_data *drvdata; |
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19 | struct clk *clk; |
20 | ||
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21 | drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL); |
22 | if (!drvdata) | |
23 | return -ENOMEM; | |
24 | ||
701190fd | 25 | /* LPSS free running clock */ |
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26 | drvdata->name = "lpss_clk"; |
27 | clk = clk_register_fixed_rate(&pdev->dev, drvdata->name, NULL, | |
553b4858 | 28 | 0, 100000000); |
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29 | if (IS_ERR(clk)) |
30 | return PTR_ERR(clk); | |
31 | ||
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32 | drvdata->clk = clk; |
33 | platform_set_drvdata(pdev, drvdata); | |
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34 | return 0; |
35 | } | |
36 | ||
37 | static struct platform_driver lpt_clk_driver = { | |
38 | .driver = { | |
39 | .name = "clk-lpt", | |
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40 | }, |
41 | .probe = lpt_clk_probe, | |
42 | }; | |
43 | ||
f58b082a | 44 | int __init lpt_clk_init(void) |
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45 | { |
46 | return platform_driver_register(&lpt_clk_driver); | |
47 | } |