diff options
Diffstat (limited to 'drivers/pwm/pwm-lpss-platform.c')
-rw-r--r-- | drivers/pwm/pwm-lpss-platform.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/drivers/pwm/pwm-lpss-platform.c b/drivers/pwm/pwm-lpss-platform.c new file mode 100644 index 000000000000..18a9c880a76d --- /dev/null +++ b/drivers/pwm/pwm-lpss-platform.c | |||
@@ -0,0 +1,68 @@ | |||
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 | |||
20 | static 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 | |||
42 | static 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 | |||
49 | static 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 | }; | ||
54 | MODULE_DEVICE_TABLE(acpi, pwm_lpss_acpi_match); | ||
55 | |||
56 | static 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 | }; | ||
64 | module_platform_driver(pwm_lpss_driver_platform); | ||
65 | |||
66 | MODULE_DESCRIPTION("PWM platform driver for Intel LPSS"); | ||
67 | MODULE_LICENSE("GPL v2"); | ||
68 | MODULE_ALIAS("platform:pwm-lpss"); | ||