// SPDX-License-Identifier: GPL-2.0-only
/*
 * Intel Low Power Subsystem clocks.
 *
 * Copyright (C) 2013, Intel Corporation
 * Authors: Mika Westerberg <mika.westerberg@linux.intel.com>
 *          Heikki Krogerus <heikki.krogerus@linux.intel.com>
 */

#include <linux/clk-provider.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/platform_data/x86/clk-lpss.h>
#include <linux/platform_device.h>

static int lpss_atom_clk_probe(struct platform_device *pdev)
{
        struct lpss_clk_data *drvdata;
        struct clk *clk;

        drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL);
        if (!drvdata)
                return -ENOMEM;

        /* LPSS free running clock */
        drvdata->name = "lpss_clk";
        clk = clk_register_fixed_rate(&pdev->dev, drvdata->name, NULL,
                                      0, 100000000);
        if (IS_ERR(clk))
                return PTR_ERR(clk);

        drvdata->clk = clk;
        platform_set_drvdata(pdev, drvdata);
        return 0;
}

static struct platform_driver lpss_atom_clk_driver = {
        .driver = {
                .name = "clk-lpss-atom",
        },
        .probe = lpss_atom_clk_probe,
};

int __init lpss_atom_clk_init(void)
{
        return platform_driver_register(&lpss_atom_clk_driver);
}