1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Intel LPSS core support.
4  *
5  * Copyright (C) 2015, Intel Corporation
6  *
7  * Authors: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
8  *          Mika Westerberg <mika.westerberg@linux.intel.com>
9  */
10 
11 #ifndef __MFD_INTEL_LPSS_H
12 #define __MFD_INTEL_LPSS_H
13 
14 #include <linux/bits.h>
15 #include <linux/pm.h>
16 
17 /*
18  * Some DSDTs have an unused GEXP ACPI device conflicting with I2C4 resources.
19  * Set to ignore resource conflicts with ACPI declared SystemMemory regions.
20  */
21 #define QUIRK_IGNORE_RESOURCE_CONFLICTS BIT(0)
22 /*
23  * Some devices have misconfigured clock divider due to a firmware bug.
24  * Set this to force the clock divider to 1:1 ratio.
25  */
26 #define QUIRK_CLOCK_DIVIDER_UNITY		BIT(1)
27 
28 struct device;
29 struct resource;
30 struct software_node;
31 
32 struct intel_lpss_platform_info {
33 	struct resource *mem;
34 	int irq;
35 	unsigned int quirks;
36 	unsigned long clk_rate;
37 	const char *clk_con_id;
38 	const struct software_node *swnode;
39 };
40 
41 int intel_lpss_probe(struct device *dev,
42 		     const struct intel_lpss_platform_info *info);
43 void intel_lpss_remove(struct device *dev);
44 
45 extern const struct dev_pm_ops intel_lpss_pm_ops;
46 
47 #endif /* __MFD_INTEL_LPSS_H */
48