Commit | Line | Data |
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c558e39e AS |
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> | |
f080be27 | 17 | #include <linux/pm_runtime.h> |
c558e39e AS |
18 | |
19 | #include "pwm-lpss.h" | |
20 | ||
21 | static int pwm_lpss_probe_platform(struct platform_device *pdev) | |
22 | { | |
23 | const struct pwm_lpss_boardinfo *info; | |
24 | const struct acpi_device_id *id; | |
25 | struct pwm_lpss_chip *lpwm; | |
26 | struct resource *r; | |
27 | ||
28 | id = acpi_match_device(pdev->dev.driver->acpi_match_table, &pdev->dev); | |
29 | if (!id) | |
30 | return -ENODEV; | |
31 | ||
32 | info = (const struct pwm_lpss_boardinfo *)id->driver_data; | |
33 | r = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
34 | ||
35 | lpwm = pwm_lpss_probe(&pdev->dev, r, info); | |
36 | if (IS_ERR(lpwm)) | |
37 | return PTR_ERR(lpwm); | |
38 | ||
39 | platform_set_drvdata(pdev, lpwm); | |
f080be27 QZ |
40 | |
41 | pm_runtime_set_active(&pdev->dev); | |
42 | pm_runtime_enable(&pdev->dev); | |
43 | ||
c558e39e AS |
44 | return 0; |
45 | } | |
46 | ||
47 | static int pwm_lpss_remove_platform(struct platform_device *pdev) | |
48 | { | |
49 | struct pwm_lpss_chip *lpwm = platform_get_drvdata(pdev); | |
50 | ||
f080be27 | 51 | pm_runtime_disable(&pdev->dev); |
c558e39e AS |
52 | return pwm_lpss_remove(lpwm); |
53 | } | |
54 | ||
55 | static const struct acpi_device_id pwm_lpss_acpi_match[] = { | |
56 | { "80860F09", (unsigned long)&pwm_lpss_byt_info }, | |
57 | { "80862288", (unsigned long)&pwm_lpss_bsw_info }, | |
03f00e53 | 58 | { "80865AC8", (unsigned long)&pwm_lpss_bxt_info }, |
c558e39e AS |
59 | { }, |
60 | }; | |
61 | MODULE_DEVICE_TABLE(acpi, pwm_lpss_acpi_match); | |
62 | ||
63 | static struct platform_driver pwm_lpss_driver_platform = { | |
64 | .driver = { | |
65 | .name = "pwm-lpss", | |
66 | .acpi_match_table = pwm_lpss_acpi_match, | |
67 | }, | |
68 | .probe = pwm_lpss_probe_platform, | |
69 | .remove = pwm_lpss_remove_platform, | |
70 | }; | |
71 | module_platform_driver(pwm_lpss_driver_platform); | |
72 | ||
73 | MODULE_DESCRIPTION("PWM platform driver for Intel LPSS"); | |
74 | MODULE_LICENSE("GPL v2"); | |
75 | MODULE_ALIAS("platform:pwm-lpss"); |