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

 1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * linux/drivers/leds/leds-locomo.c
 4 *
 5 * Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu>
 6 */
 7
 8#include <linux/kernel.h>
 9#include <linux/init.h>
10#include <linux/module.h>
11#include <linux/device.h>
12#include <linux/leds.h>
13
14#include <mach/hardware.h>
15#include <asm/hardware/locomo.h>
16
17static void locomoled_brightness_set(struct led_classdev *led_cdev,
18				enum led_brightness value, int offset)
19{
20	struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev->parent);
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
31static 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
37static 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
43static struct led_classdev locomo_led0 = {
44	.name			= "locomo:amber:charge",
45	.default_trigger	= "main-battery-charging",
46	.brightness_set		= locomoled_brightness_set0,
47};
48
49static struct led_classdev locomo_led1 = {
50	.name			= "locomo:green:mail",
51	.default_trigger	= "nand-disk",
52	.brightness_set		= locomoled_brightness_set1,
53};
54
55static int locomoled_probe(struct locomo_dev *ldev)
56{
57	int ret;
58
59	ret = devm_led_classdev_register(&ldev->dev, &locomo_led0);
60	if (ret < 0)
61		return ret;
62
63	return  devm_led_classdev_register(&ldev->dev, &locomo_led1);
64}
65
66
67static struct locomo_driver locomoled_driver = {
68	.drv = {
69		.name = "locomoled"
70	},
71	.devid	= LOCOMO_DEVID_LED,
72	.probe	= locomoled_probe,
73};
74
75static int __init locomoled_init(void)
76{
77	return locomo_driver_register(&locomoled_driver);
78}
79module_init(locomoled_init);
80
81MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
82MODULE_DESCRIPTION("Locomo LED driver");
83MODULE_LICENSE("GPL");