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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
4d3cb354 | 2 | /* |
f30c2269 | 3 | * linux/drivers/leds/leds-locomo.c |
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4 | * |
5 | * Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu> | |
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6 | */ |
7 | ||
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8 | #include <linux/kernel.h> |
9 | #include <linux/init.h> | |
54f4dedb | 10 | #include <linux/module.h> |
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11 | #include <linux/device.h> |
12 | #include <linux/leds.h> | |
13 | ||
a09e64fb | 14 | #include <mach/hardware.h> |
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15 | #include <asm/hardware/locomo.h> |
16 | ||
17 | static void locomoled_brightness_set(struct led_classdev *led_cdev, | |
18 | enum led_brightness value, int offset) | |
19 | { | |
8f115cd5 | 20 | struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev->parent); |
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21 | unsigned long flags; |
22 | ||
23 | local_irq_save(flags); | |
24 | if (value) | |
25 | locomo_writel(LOCOMO_LPT_TOFH, locomo_dev->mapbase + offset); | |
26 | else | |
27 | locomo_writel(LOCOMO_LPT_TOFL, locomo_dev->mapbase + offset); | |
28 | local_irq_restore(flags); | |
29 | } | |
30 | ||
31 | static void locomoled_brightness_set0(struct led_classdev *led_cdev, | |
32 | enum led_brightness value) | |
33 | { | |
34 | locomoled_brightness_set(led_cdev, value, LOCOMO_LPT0); | |
35 | } | |
36 | ||
37 | static void locomoled_brightness_set1(struct led_classdev *led_cdev, | |
38 | enum led_brightness value) | |
39 | { | |
40 | locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1); | |
41 | } | |
42 | ||
43 | static struct led_classdev locomo_led0 = { | |
6c152bee | 44 | .name = "locomo:amber:charge", |
167c55ef | 45 | .default_trigger = "main-battery-charging", |
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46 | .brightness_set = locomoled_brightness_set0, |
47 | }; | |
48 | ||
49 | static struct led_classdev locomo_led1 = { | |
6c152bee | 50 | .name = "locomo:green:mail", |
b7408aff | 51 | .default_trigger = "nand-disk", |
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52 | .brightness_set = locomoled_brightness_set1, |
53 | }; | |
54 | ||
55 | static int locomoled_probe(struct locomo_dev *ldev) | |
56 | { | |
57 | int ret; | |
58 | ||
d4398614 | 59 | ret = devm_led_classdev_register(&ldev->dev, &locomo_led0); |
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60 | if (ret < 0) |
61 | return ret; | |
62 | ||
d4398614 | 63 | return devm_led_classdev_register(&ldev->dev, &locomo_led1); |
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64 | } |
65 | ||
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66 | |
67 | static struct locomo_driver locomoled_driver = { | |
68 | .drv = { | |
69 | .name = "locomoled" | |
70 | }, | |
71 | .devid = LOCOMO_DEVID_LED, | |
72 | .probe = locomoled_probe, | |
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73 | }; |
74 | ||
75 | static int __init locomoled_init(void) | |
76 | { | |
77 | return locomo_driver_register(&locomoled_driver); | |
78 | } | |
79 | module_init(locomoled_init); | |
80 | ||
81 | MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>"); | |
82 | MODULE_DESCRIPTION("Locomo LED driver"); | |
83 | MODULE_LICENSE("GPL"); |