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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-22 11:22:01 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-22 11:22:01 -0700
commitd7f5e3df3574c6e38b99f5fe22f15540b2b9811d (patch)
tree75fc060628490d4bc78dd3b92635b8437b6e4290
parent2fe83b3ad12d43799af5f3156886eca443a88bac (diff)
parentf8a7c6fe14f556ca8eeddce258cb21392d0c3a2f (diff)
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Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds: leds: Convert from struct class_device to struct device leds: leds-gpio for ngw100 leds: Add warning printks in error paths leds: Fix trigger unregister_simple if register_simple fails leds: Use menuconfig objects II - LED leds: Teach leds-gpio to handle timer-unsafe GPIOs leds: Add generic GPIO LED driver
-rw-r--r--arch/avr32/boards/atngw100/setup.c31
-rw-r--r--arch/avr32/configs/atngw100_defconfig16
-rw-r--r--drivers/leds/Kconfig22
-rw-r--r--drivers/leds/Makefile1
-rw-r--r--drivers/leds/led-class.c49
-rw-r--r--drivers/leds/led-triggers.c27
-rw-r--r--drivers/leds/leds-gpio.c199
-rw-r--r--drivers/leds/leds-locomo.c2
-rw-r--r--drivers/leds/leds.h8
-rw-r--r--drivers/leds/ledtrig-timer.c49
-rw-r--r--include/linux/leds.h17
11 files changed, 343 insertions, 78 deletions
diff --git a/arch/avr32/boards/atngw100/setup.c b/arch/avr32/boards/atngw100/setup.c
index 6c4dc0a00e9f..2edcecdea8bd 100644
--- a/arch/avr32/boards/atngw100/setup.c
+++ b/arch/avr32/boards/atngw100/setup.c
@@ -13,6 +13,7 @@
#include <linux/linkage.h>
#include <linux/platform_device.h>
#include <linux/types.h>
+#include <linux/leds.h>
#include <linux/spi/spi.h>
#include <asm/io.h>
@@ -21,6 +22,7 @@
#include <asm/arch/at32ap7000.h>
#include <asm/arch/board.h>
#include <asm/arch/init.h>
+#include <asm/arch/portmux.h>
/* Initialized by bootloader-specific startup code. */
struct tag *bootloader_tags __initdata;
@@ -100,8 +102,31 @@ void __init setup_board(void)
at32_setup_serial_console(0);
}
+static const struct gpio_led ngw_leds[] = {
+ { .name = "sys", .gpio = GPIO_PIN_PA(16), .active_low = 1,
+ .default_trigger = "heartbeat",
+ },
+ { .name = "a", .gpio = GPIO_PIN_PA(19), .active_low = 1, },
+ { .name = "b", .gpio = GPIO_PIN_PE(19), .active_low = 1, },
+};
+
+static const struct gpio_led_platform_data ngw_led_data = {
+ .num_leds = ARRAY_SIZE(ngw_leds),
+ .leds = (void *) ngw_leds,
+};
+
+static struct platform_device ngw_gpio_leds = {
+ .name = "leds-gpio",
+ .id = -1,
+ .dev = {
+ .platform_data = (void *) &ngw_led_data,
+ }
+};
+
static int __init atngw100_init(void)
{
+ unsigned i;
+
/*
* ATNGW100 uses 16-bit SDRAM interface, so we don't need to
* reserve any pins for it.
@@ -116,6 +141,12 @@ static int __init atngw100_init(void)
at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
+ for (i = 0; i < ARRAY_SIZE(ngw_leds); i++) {
+ at32_select_gpio(ngw_leds[i].gpio,
+ AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
+ }
+ platform_device_register(&ngw_gpio_leds);
+
return 0;
}
postcore_initcall(atngw100_init);
diff --git a/arch/avr32/configs/atngw100_defconfig b/arch/avr32/configs/atngw100_defconfig
index 49493ad3b5a9..b799a68ffd97 100644
--- a/arch/avr32/configs/atngw100_defconfig
+++ b/arch/avr32/configs/atngw100_defconfig
@@ -712,7 +712,21 @@ CONFIG_SPI_ATMEL=y
#
# LED devices
#
-# CONFIG_NEW_LEDS is not set
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+
+#
+# LED drivers
+#
+CONFIG_LEDS_GPIO=y
+
+#
+# LED Triggers
+#
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TIMER=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+
#
# LED drivers
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 87d2046f866c..4468cb3a8d24 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -1,9 +1,6 @@
-
-menu "LED devices"
- depends on HAS_IOMEM
-
-config NEW_LEDS
+menuconfig NEW_LEDS
bool "LED Support"
+ depends on HAS_IOMEM
help
Say Y to enable Linux LED support. This allows control of supported
LEDs from both userspace and optionally, by kernel events (triggers).
@@ -11,9 +8,10 @@ config NEW_LEDS
This is not related to standard keyboard LEDs which are controlled
via the input system.
+if NEW_LEDS
+
config LEDS_CLASS
tristate "LED Class Support"
- depends on NEW_LEDS
help
This option enables the led sysfs class in /sys/class/leds. You'll
need this to do anything useful with LEDs. If unsure, say N.
@@ -95,11 +93,18 @@ config LEDS_COBALT
help
This option enables support for the front LED on Cobalt Server
+config LEDS_GPIO
+ tristate "LED Support for GPIO connected LEDs"
+ depends on LEDS_CLASS && GENERIC_GPIO
+ help
+ This option enables support for the LEDs connected to GPIO
+ outputs. To be useful the particular board must have LEDs
+ and they must be connected to the GPIO lines.
+
comment "LED Triggers"
config LEDS_TRIGGERS
bool "LED Trigger support"
- depends on NEW_LEDS
help
This option enables trigger support for the leds class.
These triggers allow kernel events to drive the LEDs and can
@@ -128,5 +133,4 @@ config LEDS_TRIGGER_HEARTBEAT
load average.
If unsure, say Y.
-endmenu
-
+endif # NEW_LEDS
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index aa2c18efa5b2..f8995c9bc2ea 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_LEDS_NET48XX) += leds-net48xx.o
obj-$(CONFIG_LEDS_WRAP) += leds-wrap.o
obj-$(CONFIG_LEDS_H1940) += leds-h1940.o
obj-$(CONFIG_LEDS_COBALT) += leds-cobalt.o
+obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o
# LED Triggers
obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 3c1711210e38..4211293ce862 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -2,7 +2,7 @@
* LED Class Core
*
* Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu>
- * Copyright (C) 2005-2006 Richard Purdie <rpurdie@openedhand.com>
+ * Copyright (C) 2005-2007 Richard Purdie <rpurdie@openedhand.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -24,9 +24,10 @@
static struct class *leds_class;
-static ssize_t led_brightness_show(struct class_device *dev, char *buf)
+static ssize_t led_brightness_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct led_classdev *led_cdev = class_get_devdata(dev);
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
ssize_t ret = 0;
/* no lock needed for this */
@@ -36,10 +37,10 @@ static ssize_t led_brightness_show(struct class_device *dev, char *buf)
return ret;
}
-static ssize_t led_brightness_store(struct class_device *dev,
- const char *buf, size_t size)
+static ssize_t led_brightness_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t size)
{
- struct led_classdev *led_cdev = class_get_devdata(dev);
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
ssize_t ret = -EINVAL;
char *after;
unsigned long state = simple_strtoul(buf, &after, 10);
@@ -56,10 +57,9 @@ static ssize_t led_brightness_store(struct class_device *dev,
return ret;
}
-static CLASS_DEVICE_ATTR(brightness, 0644, led_brightness_show,
- led_brightness_store);
+static DEVICE_ATTR(brightness, 0644, led_brightness_show, led_brightness_store);
#ifdef CONFIG_LEDS_TRIGGERS
-static CLASS_DEVICE_ATTR(trigger, 0644, led_trigger_show, led_trigger_store);
+static DEVICE_ATTR(trigger, 0644, led_trigger_show, led_trigger_store);
#endif
/**
@@ -93,16 +93,15 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)
{
int rc;
- led_cdev->class_dev = class_device_create(leds_class, NULL, 0,
- parent, "%s", led_cdev->name);
- if (unlikely(IS_ERR(led_cdev->class_dev)))
- return PTR_ERR(led_cdev->class_dev);
+ led_cdev->dev = device_create(leds_class, parent, 0, "%s",
+ led_cdev->name);
+ if (unlikely(IS_ERR(led_cdev->dev)))
+ return PTR_ERR(led_cdev->dev);
- class_set_devdata(led_cdev->class_dev, led_cdev);
+ dev_set_drvdata(led_cdev->dev, led_cdev);
/* register the attributes */
- rc = class_device_create_file(led_cdev->class_dev,
- &class_device_attr_brightness);
+ rc = device_create_file(led_cdev->dev, &dev_attr_brightness);
if (rc)
goto err_out;
@@ -114,8 +113,7 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)
#ifdef CONFIG_LEDS_TRIGGERS
rwlock_init(&led_cdev->trigger_lock);
- rc = class_device_create_file(led_cdev->class_dev,
- &class_device_attr_trigger);
+ rc = device_create_file(led_cdev->dev, &dev_attr_trigger);
if (rc)
goto err_out_led_list;
@@ -123,18 +121,17 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)
#endif
printk(KERN_INFO "Registered led device: %s\n",
- led_cdev->class_dev->class_id);
+ led_cdev->name);
return 0;
#ifdef CONFIG_LEDS_TRIGGERS
err_out_led_list:
- class_device_remove_file(led_cdev->class_dev,
- &class_device_attr_brightness);
+ device_remove_file(led_cdev->dev, &dev_attr_brightness);
list_del(&led_cdev->node);
#endif
err_out:
- class_device_unregister(led_cdev->class_dev);
+ device_unregister(led_cdev->dev);
return rc;
}
EXPORT_SYMBOL_GPL(led_classdev_register);
@@ -147,18 +144,16 @@ EXPORT_SYMBOL_GPL(led_classdev_register);
*/
void led_classdev_unregister(struct led_classdev *led_cdev)
{
- class_device_remove_file(led_cdev->class_dev,
- &class_device_attr_brightness);
+ device_remove_file(led_cdev->dev, &dev_attr_brightness);
#ifdef CONFIG_LEDS_TRIGGERS
- class_device_remove_file(led_cdev->class_dev,
- &class_device_attr_trigger);
+ device_remove_file(led_cdev->dev, &dev_attr_trigger);
write_lock(&led_cdev->trigger_lock);
if (led_cdev->trigger)
led_trigger_set(led_cdev, NULL);
write_unlock(&led_cdev->trigger_lock);
#endif
- class_device_unregister(led_cdev->class_dev);
+ device_unregister(led_cdev->dev);
write_lock(&leds_list_lock);
list_del(&led_cdev->node);
diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c
index 454fb0901f82..575368c2b100 100644
--- a/drivers/leds/led-triggers.c
+++ b/drivers/leds/led-triggers.c
@@ -1,7 +1,7 @@
/*
* LED Triggers Core
*
- * Copyright 2005-2006 Openedhand Ltd.
+ * Copyright 2005-2007 Openedhand Ltd.
*
* Author: Richard Purdie <rpurdie@openedhand.com>
*
@@ -28,10 +28,10 @@
static DEFINE_RWLOCK(triggers_list_lock);
static LIST_HEAD(trigger_list);
-ssize_t led_trigger_store(struct class_device *dev, const char *buf,
- size_t count)
+ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
- struct led_classdev *led_cdev = class_get_devdata(dev);
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
char trigger_name[TRIG_NAME_MAX];
struct led_trigger *trig;
size_t len;
@@ -67,9 +67,10 @@ ssize_t led_trigger_store(struct class_device *dev, const char *buf,
}
-ssize_t led_trigger_show(struct class_device *dev, char *buf)
+ssize_t led_trigger_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
- struct led_classdev *led_cdev = class_get_devdata(dev);
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct led_trigger *trig;
int len = 0;
@@ -183,13 +184,20 @@ int led_trigger_register(struct led_trigger *trigger)
void led_trigger_register_simple(const char *name, struct led_trigger **tp)
{
struct led_trigger *trigger;
+ int err;
trigger = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
if (trigger) {
trigger->name = name;
- led_trigger_register(trigger);
- }
+ err = led_trigger_register(trigger);
+ if (err < 0)
+ printk(KERN_WARNING "LED trigger %s failed to register"
+ " (%d)\n", name, err);
+ } else
+ printk(KERN_WARNING "LED trigger %s failed to register"
+ " (no memory)\n", name);
+
*tp = trigger;
}
@@ -215,7 +223,8 @@ void led_trigger_unregister(struct led_trigger *trigger)
void led_trigger_unregister_simple(struct led_trigger *trigger)
{
- led_trigger_unregister(trigger);
+ if (trigger)
+ led_trigger_unregister(trigger);
kfree(trigger);
}
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
new file mode 100644
index 000000000000..47d90db280ce
--- /dev/null
+++ b/drivers/leds/leds-gpio.c
@@ -0,0 +1,199 @@
+/*
+ * LEDs driver for GPIOs
+ *
+ * Copyright (C) 2007 8D Technologies inc.
+ * Raphael Assenat <raph@8d.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/workqueue.h>
+
+#include <asm/gpio.h>
+
+struct gpio_led_data {
+ struct led_classdev cdev;
+ unsigned gpio;
+ struct work_struct work;
+ u8 new_level;
+ u8 can_sleep;
+ u8 active_low;
+};
+
+static void gpio_led_work(struct work_struct *work)
+{
+ struct gpio_led_data *led_dat =
+ container_of(work, struct gpio_led_data, work);
+
+ gpio_set_value_cansleep(led_dat->gpio, led_dat->new_level);
+}
+
+static void gpio_led_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ struct gpio_led_data *led_dat =
+ container_of(led_cdev, struct gpio_led_data, cdev);
+ int level;
+
+ if (value == LED_OFF)
+ level = 0;
+ else
+ level = 1;
+
+ if (led_dat->active_low)
+ level = !level;
+
+ /* setting GPIOs with I2C/etc requires a preemptible task context */
+ if (led_dat->can_sleep) {
+ if (preempt_count()) {
+ led_dat->new_level = level;
+ schedule_work(&led_dat->work);
+ } else
+ gpio_set_value_cansleep(led_dat->gpio, level);
+ } else
+ gpio_set_value(led_dat->gpio, level);
+}
+
+static int __init gpio_led_probe(struct platform_device *pdev)
+{
+ struct gpio_led_platform_data *pdata = pdev->dev.platform_data;
+ struct gpio_led *cur_led;
+ struct gpio_led_data *leds_data, *led_dat;
+ int i, ret = 0;
+
+ if (!pdata)
+ return -EBUSY;
+
+ leds_data = kzalloc(sizeof(struct gpio_led_data) * pdata->num_leds,
+ GFP_KERNEL);
+ if (!leds_data)
+ return -ENOMEM;
+
+ for (i = 0; i < pdata->num_leds; i++) {
+ cur_led = &pdata->leds[i];
+ led_dat = &leds_data[i];
+
+ led_dat->cdev.name = cur_led->name;
+ led_dat->cdev.default_trigger = cur_led->default_trigger;
+ led_dat->gpio = cur_led->gpio;
+ led_dat->can_sleep = gpio_cansleep(cur_led->gpio);
+ led_dat->active_low = cur_led->active_low;
+ led_dat->cdev.brightness_set = gpio_led_set;
+ led_dat->cdev.brightness = cur_led->active_low ? LED_FULL : LED_OFF;
+
+ ret = gpio_request(led_dat->gpio, led_dat->cdev.name);
+ if (ret < 0)
+ goto err;
+
+ gpio_direction_output(led_dat->gpio, led_dat->active_low);
+
+ ret = led_classdev_register(&pdev->dev, &led_dat->cdev);
+ if (ret < 0) {
+ gpio_free(led_dat->gpio);
+ goto err;
+ }
+
+ INIT_WORK(&led_dat->work, gpio_led_work);
+ }
+
+ platform_set_drvdata(pdev, leds_data);
+
+ return 0;
+
+err:
+ if (i > 0) {
+ for (i = i - 1; i >= 0; i--) {
+ led_classdev_unregister(&leds_data[i].cdev);
+ gpio_free(leds_data[i].gpio);
+ }
+ }
+
+ flush_scheduled_work();
+ kfree(leds_data);
+
+ return ret;
+}
+
+static int __exit gpio_led_remove(struct platform_device *pdev)
+{
+ int i;
+ struct gpio_led_platform_data *pdata = pdev->dev.platform_data;
+ struct gpio_led_data *leds_data;
+
+ leds_data = platform_get_drvdata(pdev);
+
+ for (i = 0; i < pdata->num_leds; i++) {
+ led_classdev_unregister(&leds_data[i].cdev);
+ gpio_free(leds_data[i].gpio);
+ }
+
+ kfree(leds_data);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int gpio_led_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct gpio_led_platform_data *pdata = pdev->dev.platform_data;
+ struct gpio_led_data *leds_data;
+ int i;
+
+ leds_data = platform_get_drvdata(pdev);
+
+ for (i = 0; i < pdata->num_leds; i++)
+ led_classdev_suspend(&leds_data[i].cdev);
+
+ return 0;
+}
+
+static int gpio_led_resume(struct platform_device *pdev)
+{
+ struct gpio_led_platform_data *pdata = pdev->dev.platform_data;
+ struct gpio_led_data *leds_data;
+ int i;
+
+ leds_data = platform_get_drvdata(pdev);
+
+ for (i = 0; i < pdata->num_leds; i++)
+ led_classdev_resume(&leds_data[i].cdev);
+
+ return 0;
+}
+#else
+#define gpio_led_suspend NULL
+#define gpio_led_resume NULL
+#endif
+
+static struct platform_driver gpio_led_driver = {
+ .remove = __exit_p(gpio_led_remove),
+ .suspend = gpio_led_suspend,
+ .resume = gpio_led_resume,
+ .driver = {
+ .name = "leds-gpio",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init gpio_led_init(void)
+{
+ return platform_driver_probe(&gpio_led_driver, gpio_led_probe);
+}
+
+static void __exit gpio_led_exit(void)
+{
+ platform_driver_unregister(&gpio_led_driver);
+}
+
+module_init(gpio_led_init);
+module_exit(gpio_led_exit);
+
+MODULE_AUTHOR("Raphael Assenat <raph@8d.com>");
+MODULE_DESCRIPTION("GPIO LED driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/leds/leds-locomo.c b/drivers/leds/leds-locomo.c
index 6f2d449ba983..bfac499f3258 100644
--- a/drivers/leds/leds-locomo.c
+++ b/drivers/leds/leds-locomo.c
@@ -19,7 +19,7 @@
static void locomoled_brightness_set(struct led_classdev *led_cdev,
enum led_brightness value, int offset)
{
- struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->class_dev->dev);
+ struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev);
unsigned long flags;
local_irq_save(flags);
diff --git a/drivers/leds/leds.h b/drivers/leds/leds.h
index a715c4ed93ff..f2f3884fe063 100644
--- a/drivers/leds/leds.h
+++ b/drivers/leds/leds.h
@@ -13,6 +13,7 @@
#ifndef __LEDS_H_INCLUDED
#define __LEDS_H_INCLUDED
+#include <linux/device.h>
#include <linux/leds.h>
static inline void led_set_brightness(struct led_classdev *led_cdev,
@@ -37,8 +38,9 @@ void led_trigger_set(struct led_classdev *led_cdev,
#define led_trigger_set(x, y) do {} while(0)
#endif
-ssize_t led_trigger_store(struct class_device *dev, const char *buf,
- size_t count);
-ssize_t led_trigger_show(struct class_device *dev, char *buf);
+ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count);
+ssize_t led_trigger_show(struct device *dev, struct device_attribute *attr,
+ char *buf);
#endif /* __LEDS_H_INCLUDED */
diff --git a/drivers/leds/ledtrig-timer.c b/drivers/leds/ledtrig-timer.c
index d756bdb01c59..ed9ff02c77ea 100644
--- a/drivers/leds/ledtrig-timer.c
+++ b/drivers/leds/ledtrig-timer.c
@@ -52,9 +52,10 @@ static void led_timer_function(unsigned long data)
mod_timer(&timer_data->timer, jiffies + msecs_to_jiffies(delay));
}
-static ssize_t led_delay_on_show(struct class_device *dev, char *buf)
+static ssize_t led_delay_on_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct led_classdev *led_cdev = class_get_devdata(dev);
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct timer_trig_data *timer_data = led_cdev->trigger_data;
sprintf(buf, "%lu\n", timer_data->delay_on);
@@ -62,10 +63,10 @@ static ssize_t led_delay_on_show(struct class_device *dev, char *buf)
return strlen(buf) + 1;
}
-static ssize_t led_delay_on_store(struct class_device *dev, const char *buf,
- size_t size)
+static ssize_t led_delay_on_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t size)
{
- struct led_classdev *led_cdev = class_get_devdata(dev);
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct timer_trig_data *timer_data = led_cdev->trigger_data;
int ret = -EINVAL;
char *after;
@@ -84,9 +85,10 @@ static ssize_t led_delay_on_store(struct class_device *dev, const char *buf,
return ret;
}
-static ssize_t led_delay_off_show(struct class_device *dev, char *buf)
+static ssize_t led_delay_off_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct led_classdev *led_cdev = class_get_devdata(dev);
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct timer_trig_data *timer_data = led_cdev->trigger_data;
sprintf(buf, "%lu\n", timer_data->delay_off);
@@ -94,10 +96,10 @@ static ssize_t led_delay_off_show(struct class_device *dev, char *buf)
return strlen(buf) + 1;
}
-static ssize_t led_delay_off_store(struct class_device *dev, const char *buf,
- size_t size)
+static ssize_t led_delay_off_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t size)
{
- struct led_classdev *led_cdev = class_get_devdata(dev);
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct timer_trig_data *timer_data = led_cdev->trigger_data;
int ret = -EINVAL;
char *after;
@@ -116,10 +118,8 @@ static ssize_t led_delay_off_store(struct class_device *dev, const char *buf,
return ret;
}
-static CLASS_DEVICE_ATTR(delay_on, 0644, led_delay_on_show,
- led_delay_on_store);
-static CLASS_DEVICE_ATTR(delay_off, 0644, led_delay_off_show,
- led_delay_off_store);
+static DEVICE_ATTR(delay_on, 0644, led_delay_on_show, led_delay_on_store);
+static DEVICE_ATTR(delay_off, 0644, led_delay_off_show, led_delay_off_store);
static void timer_trig_activate(struct led_classdev *led_cdev)
{
@@ -136,18 +136,17 @@ static void timer_trig_activate(struct led_classdev *led_cdev)
timer_data->timer.function = led_timer_function;
timer_data->timer.data = (unsigned long) led_cdev;
- rc = class_device_create_file(led_cdev->class_dev,
- &class_device_attr_delay_on);
- if (rc) goto err_out;
- rc = class_device_create_file(led_cdev->class_dev,
- &class_device_attr_delay_off);
- if (rc) goto err_out_delayon;
+ rc = device_create_file(led_cdev->dev, &dev_attr_delay_on);
+ if (rc)
+ goto err_out;
+ rc = device_create_file(led_cdev->dev, &dev_attr_delay_off);
+ if (rc)
+ goto err_out_delayon;
return;
err_out_delayon:
- class_device_remove_file(led_cdev->class_dev,
- &class_device_attr_delay_on);
+ device_remove_file(led_cdev->dev, &dev_attr_delay_on);
err_out:
led_cdev->trigger_data = NULL;
kfree(timer_data);
@@ -158,10 +157,8 @@ static void timer_trig_deactivate(struct led_classdev *led_cdev)
struct timer_trig_data *timer_data = led_cdev->trigger_data;
if (timer_data) {
- class_device_remove_file(led_cdev->class_dev,
- &class_device_attr_delay_on);
- class_device_remove_file(led_cdev->class_dev,
- &class_device_attr_delay_off);
+ device_remove_file(led_cdev->dev, &dev_attr_delay_on);
+ device_remove_file(led_cdev->dev, &dev_attr_delay_off);
del_timer_sync(&timer_data->timer);
kfree(timer_data);
}
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 494bed7c2fc1..421175092ee2 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -15,7 +15,6 @@
#include <linux/list.h>
struct device;
-struct class_device;
/*
* LED Core
*/
@@ -37,7 +36,7 @@ struct led_classdev {
void (*brightness_set)(struct led_classdev *led_cdev,
enum led_brightness brightness);
- struct class_device *class_dev;
+ struct device *dev;
struct list_head node; /* LED Device list */
char *default_trigger; /* Trigger to use */
@@ -109,4 +108,18 @@ extern void ledtrig_ide_activity(void);
#define ledtrig_ide_activity() do {} while(0)
#endif
+/* For the leds-gpio driver */
+struct gpio_led {
+ const char *name;
+ char *default_trigger;
+ unsigned gpio;
+ u8 active_low;
+};
+
+struct gpio_led_platform_data {
+ int num_leds;
+ struct gpio_led *leds;
+};
+
+
#endif /* __LINUX_LEDS_H_INCLUDED */