blob: 18a9c880a76d73f8651f6b80a313211bafb93da4 [file] [log] [blame]
Andy Shevchenkoc558e392014-08-19 19:17:35 +03001/*
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");