2 * Intel Lynxpoint LPSS clocks.
4 * Copyright (C) 2013, Intel Corporation
5 * Authors: Mika Westerberg <mika.westerberg@linux.intel.com>
6 * Heikki Krogerus <heikki.krogerus@linux.intel.com>
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.
13 #include <linux/acpi.h>
14 #include <linux/clk.h>
15 #include <linux/clkdev.h>
16 #include <linux/clk-provider.h>
17 #include <linux/err.h>
18 #include <linux/module.h>
19 #include <linux/platform_device.h>
23 #define PRV_CLOCK_PARAMS 0x800
25 static int lpt_clk_probe(struct platform_device *pdev)
29 /* LPSS free running clock */
30 clk = clk_register_fixed_rate(&pdev->dev, "lpss_clk", NULL, CLK_IS_ROOT,
35 /* Shared DMA clock */
36 clk_register_clkdev(clk, "hclk", "INTL9C60.0.auto");
39 clk = clk_register_lpss_gate("spi0_clk", "lpss_clk", "INT33C0", NULL,
42 clk_register_clkdev(clk, NULL, "INT33C0:00");
44 clk = clk_register_lpss_gate("spi1_clk", "lpss_clk", "INT33C1", NULL,
47 clk_register_clkdev(clk, NULL, "INT33C1:00");
50 clk = clk_register_lpss_gate("i2c0_clk", "lpss_clk", "INT33C2", NULL,
53 clk_register_clkdev(clk, NULL, "INT33C2:00");
55 clk = clk_register_lpss_gate("i2c1_clk", "lpss_clk", "INT33C3", NULL,
58 clk_register_clkdev(clk, NULL, "INT33C3:00");
61 clk = clk_register_lpss_gate("uart0_clk", "lpss_clk", "INT33C4", NULL,
64 clk_register_clkdev(clk, NULL, "INT33C4:00");
66 clk = clk_register_lpss_gate("uart1_clk", "lpss_clk", "INT33C5", NULL,
69 clk_register_clkdev(clk, NULL, "INT33C5:00");
74 static struct platform_driver lpt_clk_driver = {
79 .probe = lpt_clk_probe,
82 static int __init lpt_clk_init(void)
84 return platform_driver_register(&lpt_clk_driver);
86 arch_initcall(lpt_clk_init);