1/*
2 * Intel Low Power Subsystem PWM controller driver
3 *
4 * Copyright (C) 2014, Intel Corporation
5 *
6 * Derived from the original pwm-lpss.c
7 *
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.
11 */
12
13#include <linux/acpi.h>
14#include <linux/kernel.h>
15#include <linux/module.h>
16#include <linux/platform_device.h>
17
18#include "pwm-lpss.h"
19
20static int pwm_lpss_probe_platform(struct platform_device *pdev)
21{
22	const struct pwm_lpss_boardinfo *info;
23	const struct acpi_device_id *id;
24	struct pwm_lpss_chip *lpwm;
25	struct resource *r;
26
27	id = acpi_match_device(pdev->dev.driver->acpi_match_table, &pdev->dev);
28	if (!id)
29		return -ENODEV;
30
31	info = (const struct pwm_lpss_boardinfo *)id->driver_data;
32	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
33
34	lpwm = pwm_lpss_probe(&pdev->dev, r, info);
35	if (IS_ERR(lpwm))
36		return PTR_ERR(lpwm);
37
38	platform_set_drvdata(pdev, lpwm);
39	return 0;
40}
41
42static int pwm_lpss_remove_platform(struct platform_device *pdev)
43{
44	struct pwm_lpss_chip *lpwm = platform_get_drvdata(pdev);
45
46	return pwm_lpss_remove(lpwm);
47}
48
49static const struct acpi_device_id pwm_lpss_acpi_match[] = {
50	{ "80860F09", (unsigned long)&pwm_lpss_byt_info },
51	{ "80862288", (unsigned long)&pwm_lpss_bsw_info },
52	{ },
53};
54MODULE_DEVICE_TABLE(acpi, pwm_lpss_acpi_match);
55
56static struct platform_driver pwm_lpss_driver_platform = {
57	.driver = {
58		.name = "pwm-lpss",
59		.acpi_match_table = pwm_lpss_acpi_match,
60	},
61	.probe = pwm_lpss_probe_platform,
62	.remove = pwm_lpss_remove_platform,
63};
64module_platform_driver(pwm_lpss_driver_platform);
65
66MODULE_DESCRIPTION("PWM platform driver for Intel LPSS");
67MODULE_LICENSE("GPL v2");
68MODULE_ALIAS("platform:pwm-lpss");
69