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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Intel Low Power Subsystem clocks.4 *5 * Copyright (C) 2013, Intel Corporation6 * 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