korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-04 09:34:12 +08:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds

Browse Source 
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds:
  leds: Add mx31moboard MC13783 led support
  leds: Add mc13783 LED support
  leds: leds-ss4200: fix led_classdev_unregister twice in error handling
  leds: leds-lp3944: properly handle lp3944_configure fail in lp3944_probe
  leds: led-class: set permissions on max_brightness file to 0444
  leds: leds-gpio: Change blink_set callback to be able to turn off blinking
  leds: Add LED driver for the Soekris net5501 board
  leds: 88pm860x - fix checking in probe function
This commit is contained in:
Linus Torvalds 2010-05-27 11:34:20 -07:00
commit 3ddab4788d
14 changed files with 691 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
arch/arm/mach-mx3/mach-mx31moboard.c
View File

@ -220,11 +220,54 @@ static struct mc13783_regulator_init_data moboard_regulators[] = {
},
};
static struct mc13783_led_platform_data moboard_led[] = {
{
.id = MC13783_LED_R1,
.name = "coreboard-led-4:red",
.max_current = 2,
},
{
.id = MC13783_LED_G1,
.name = "coreboard-led-4:green",
.max_current = 2,
},
{
.id = MC13783_LED_B1,
.name = "coreboard-led-4:blue",
.max_current = 2,
},
{
.id = MC13783_LED_R2,
.name = "coreboard-led-5:red",
.max_current = 3,
},
{
.id = MC13783_LED_G2,
.name = "coreboard-led-5:green",
.max_current = 3,
},
{
.id = MC13783_LED_B2,
.name = "coreboard-led-5:blue",
.max_current = 3,
},
};
static struct mc13783_leds_platform_data moboard_leds = {
.num_leds = ARRAY_SIZE(moboard_led),
.led = moboard_led,
.flags = MC13783_LED_SLEWLIMTC,
.abmode = MC13783_LED_AB_DISABLED,
.tc1_period = MC13783_LED_PERIOD_10MS,
.tc2_period = MC13783_LED_PERIOD_10MS,
};
static struct mc13783_platform_data moboard_pmic = {
.regulators = moboard_regulators,
.num_regulators = ARRAY_SIZE(moboard_regulators),
.leds = &moboard_leds,
.flags = MC13783_USE_REGULATOR | MC13783_USE_RTC |
MC13783_USE_ADC,
MC13783_USE_ADC | MC13783_USE_LED,
};
static struct spi_board_info moboard_spi_board_info[] __initdata = {

22
arch/arm/mach-orion5x/dns323-setup.c
View File

@ -240,22 +240,23 @@ error_fail:
#define ORION_BLINK_HALF_PERIOD 100 /* ms */
static int dns323_gpio_blink_set(unsigned gpio,
static int dns323_gpio_blink_set(unsigned gpio, int state,
unsigned long *delay_on, unsigned long *delay_off)
{
static int value = 0;
if (!*delay_on && !*delay_off)
if (delay_on && delay_off && !*delay_on && !*delay_off)
*delay_on = *delay_off = ORION_BLINK_HALF_PERIOD;
if (ORION_BLINK_HALF_PERIOD == *delay_on
&& ORION_BLINK_HALF_PERIOD == *delay_off) {
value = !value;
orion_gpio_set_blink(gpio, value);
return 0;
switch(state) {
case GPIO_LED_NO_BLINK_LOW:
case GPIO_LED_NO_BLINK_HIGH:
orion_gpio_set_blink(gpio, 0);
gpio_set_value(gpio, state);
break;
case GPIO_LED_BLINK:
orion_gpio_set_blink(gpio, 1);
}
return -EINVAL;
return 0;
}
static struct gpio_led dns323_leds[] = {
@ -263,6 +264,7 @@ static struct gpio_led dns323_leds[] = {
.name = "power:blue",
.gpio = DNS323_GPIO_LED_POWER2,
.default_trigger = "timer",
.active_low = 1,
}, {
.name = "right:amber",
.gpio = DNS323_GPIO_LED_RIGHT_AMBER,

17
drivers/leds/Kconfig
View File

@ -67,6 +67,16 @@ config LEDS_NET48XX
This option enables support for the Soekris net4801 and net4826 error
LED.
config LEDS_NET5501
tristate "LED Support for Soekris net5501 series Error LED"
depends on LEDS_CLASS && LEDS_TRIGGERS
depends on LEDS_GPIO_PLATFORM && GPIO_CS5535
select LEDS_TRIGGER_DEFAULT_ON
default n
help
Add support for the Soekris net5501 board (detection, error led
and GPIO).
config LEDS_FSG
tristate "LED Support for the Freecom FSG-3"
depends on MACH_FSG
@ -285,6 +295,13 @@ config LEDS_DELL_NETBOOKS
This adds support for the Latitude 2100 and similar
notebooks that have an external LED.
config LEDS_MC13783
tristate "LED Support for MC13783 PMIC"
depends on MFD_MC13783
help
This option enable support for on-chip LED drivers found
on Freescale Semiconductor MC13783 PMIC.
config LEDS_TRIGGERS
bool "LED Trigger support"
help

2
drivers/leds/Makefile
View File

@ -13,6 +13,7 @@ obj-$(CONFIG_LEDS_MIKROTIK_RB532) += leds-rb532.o
obj-$(CONFIG_LEDS_S3C24XX) += leds-s3c24xx.o
obj-$(CONFIG_LEDS_AMS_DELTA) += leds-ams-delta.o
obj-$(CONFIG_LEDS_NET48XX) += leds-net48xx.o
obj-$(CONFIG_LEDS_NET5501) += leds-net5501.o
obj-$(CONFIG_LEDS_WRAP) += leds-wrap.o
obj-$(CONFIG_LEDS_ALIX2) += leds-alix2.o
obj-$(CONFIG_LEDS_H1940) += leds-h1940.o
@ -35,6 +36,7 @@ obj-$(CONFIG_LEDS_INTEL_SS4200) += leds-ss4200.o
obj-$(CONFIG_LEDS_LT3593) += leds-lt3593.o
obj-$(CONFIG_LEDS_ADP5520) += leds-adp5520.o
obj-$(CONFIG_LEDS_DELL_NETBOOKS) += dell-led.o
obj-$(CONFIG_LEDS_MC13783) += leds-mc13783.o
# LED SPI Drivers
obj-$(CONFIG_LEDS_DAC124S085) += leds-dac124s085.o

2
drivers/leds/led-class.c
View File

@ -74,7 +74,7 @@ static ssize_t led_max_brightness_show(struct device *dev,
static struct device_attribute led_class_attrs[] = {
__ATTR(brightness, 0644, led_brightness_show, led_brightness_store),
__ATTR(max_brightness, 0644, led_max_brightness_show, NULL),
__ATTR(max_brightness, 0444, led_max_brightness_show, NULL),
#ifdef CONFIG_LEDS_TRIGGERS
__ATTR(trigger, 0644, led_trigger_show, led_trigger_store),
#endif

11
drivers/leds/leds-88pm860x.c
View File

@ -256,8 +256,10 @@ static int pm860x_led_probe(struct platform_device *pdev)
if (pdev->dev.parent->platform_data) {
pm860x_pdata = pdev->dev.parent->platform_data;
pdata = pm860x_pdata->led;
} else
pdata = NULL;
} else {
dev_err(&pdev->dev, "missing platform data\n");
return -EINVAL;
}
data = kzalloc(sizeof(struct pm860x_led), GFP_KERNEL);
if (data == NULL)
@ -268,8 +270,11 @@ static int pm860x_led_probe(struct platform_device *pdev)
data->i2c = (chip->id == CHIP_PM8606) ? chip->client : chip->companion;
data->iset = pdata->iset;
data->port = __check_device(pdata, data->name);
if (data->port < 0)
if (data->port < 0) {
dev_err(&pdev->dev, "check device failed\n");
kfree(data);
return -EINVAL;
}
data->current_brightness = 0;
data->cdev.name = data->name;

31
drivers/leds/leds-gpio.c
View File

@ -26,7 +26,8 @@ struct gpio_led_data {
u8 new_level;
u8 can_sleep;
u8 active_low;
int (*platform_gpio_blink_set)(unsigned gpio,
u8 blinking;
int (*platform_gpio_blink_set)(unsigned gpio, int state,
unsigned long *delay_on, unsigned long *delay_off);
};
@ -35,7 +36,13 @@ 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);
if (led_dat->blinking) {
led_dat->platform_gpio_blink_set(led_dat->gpio,
led_dat->new_level,
NULL, NULL);
led_dat->blinking = 0;
} else
gpio_set_value_cansleep(led_dat->gpio, led_dat->new_level);
}
static void gpio_led_set(struct led_classdev *led_cdev,
@ -60,8 +67,14 @@ static void gpio_led_set(struct led_classdev *led_cdev,
if (led_dat->can_sleep) {
led_dat->new_level = level;
schedule_work(&led_dat->work);
} else
gpio_set_value(led_dat->gpio, level);
} else {
if (led_dat->blinking) {
led_dat->platform_gpio_blink_set(led_dat->gpio, level,
NULL, NULL);
led_dat->blinking = 0;
} else
gpio_set_value(led_dat->gpio, level);
}
}
static int gpio_blink_set(struct led_classdev *led_cdev,
@ -70,12 +83,14 @@ static int gpio_blink_set(struct led_classdev *led_cdev,
struct gpio_led_data *led_dat =
container_of(led_cdev, struct gpio_led_data, cdev);
return led_dat->platform_gpio_blink_set(led_dat->gpio, delay_on, delay_off);
led_dat->blinking = 1;
return led_dat->platform_gpio_blink_set(led_dat->gpio, GPIO_LED_BLINK,
delay_on, delay_off);
}
static int __devinit create_gpio_led(const struct gpio_led *template,
struct gpio_led_data *led_dat, struct device *parent,
int (*blink_set)(unsigned, unsigned long *, unsigned long *))
int (*blink_set)(unsigned, int, unsigned long *, unsigned long *))
{
int ret, state;
@ -97,6 +112,7 @@ static int __devinit create_gpio_led(const struct gpio_led *template,
led_dat->gpio = template->gpio;
led_dat->can_sleep = gpio_cansleep(template->gpio);
led_dat->active_low = template->active_low;
led_dat->blinking = 0;
if (blink_set) {
led_dat->platform_gpio_blink_set = blink_set;
led_dat->cdev.blink_set = gpio_blink_set;
@ -113,7 +129,7 @@ static int __devinit create_gpio_led(const struct gpio_led *template,
ret = gpio_direction_output(led_dat->gpio, led_dat->active_low ^ state);
if (ret < 0)
goto err;
INIT_WORK(&led_dat->work, gpio_led_work);
ret = led_classdev_register(parent, &led_dat->cdev);
@ -234,6 +250,7 @@ static int __devinit of_gpio_leds_probe(struct of_device *ofdev,
led.gpio = of_get_gpio_flags(child, 0, &flags);
led.active_low = flags & OF_GPIO_ACTIVE_LOW;
led.name = of_get_property(child, "label", NULL) ? : child->name;
led.blinking = 0;
led.default_trigger =
of_get_property(child, "linux,default-trigger", NULL);
state = of_get_property(child, "default-state", NULL);

9
drivers/leds/leds-lp3944.c
View File

@ -379,6 +379,7 @@ static int __devinit lp3944_probe(struct i2c_client *client,
{
struct lp3944_platform_data *lp3944_pdata = client->dev.platform_data;
struct lp3944_data *data;
int err;
if (lp3944_pdata == NULL) {
dev_err(&client->dev, "no platform data\n");
@ -401,9 +402,13 @@ static int __devinit lp3944_probe(struct i2c_client *client,
mutex_init(&data->lock);
dev_info(&client->dev, "lp3944 enabled\n");
err = lp3944_configure(client, data, lp3944_pdata);
if (err < 0) {
kfree(data);
return err;
}
lp3944_configure(client, data, lp3944_pdata);
dev_info(&client->dev, "lp3944 enabled\n");
return 0;
}

403
drivers/leds/leds-mc13783.c Normal file
View File

@ -0,0 +1,403 @@
/*
* LEDs driver for Freescale MC13783
*
* Copyright (C) 2010 Philippe Rétornaz
*
* Based on leds-da903x:
* Copyright (C) 2008 Compulab, Ltd.
* Mike Rapoport <mike@compulab.co.il>
*
* Copyright (C) 2006-2008 Marvell International Ltd.
* Eric Miao <eric.miao@marvell.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/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/workqueue.h>
#include <linux/mfd/mc13783.h>
#include <linux/slab.h>
struct mc13783_led {
struct led_classdev cdev;
struct work_struct work;
struct mc13783 *master;
enum led_brightness new_brightness;
int id;
};
#define MC13783_REG_LED_CONTROL_0 51
#define MC13783_LED_C0_ENABLE_BIT (1 << 0)
#define MC13783_LED_C0_TRIODE_MD_BIT (1 << 7)
#define MC13783_LED_C0_TRIODE_AD_BIT (1 << 8)
#define MC13783_LED_C0_TRIODE_KP_BIT (1 << 9)
#define MC13783_LED_C0_BOOST_BIT (1 << 10)
#define MC13783_LED_C0_ABMODE_MASK 0x7
#define MC13783_LED_C0_ABMODE 11
#define MC13783_LED_C0_ABREF_MASK 0x3
#define MC13783_LED_C0_ABREF 14
#define MC13783_REG_LED_CONTROL_1 52
#define MC13783_LED_C1_TC1HALF_BIT (1 << 18)
#define MC13783_REG_LED_CONTROL_2 53
#define MC13783_LED_C2_BL_P_MASK 0xf
#define MC13783_LED_C2_MD_P 9
#define MC13783_LED_C2_AD_P 13
#define MC13783_LED_C2_KP_P 17
#define MC13783_LED_C2_BL_C_MASK 0x7
#define MC13783_LED_C2_MD_C 0
#define MC13783_LED_C2_AD_C 3
#define MC13783_LED_C2_KP_C 6
#define MC13783_REG_LED_CONTROL_3 54
#define MC13783_LED_C3_TC_P 6
#define MC13783_LED_C3_TC_P_MASK 0x1f
#define MC13783_REG_LED_CONTROL_4 55
#define MC13783_REG_LED_CONTROL_5 56
#define MC13783_LED_Cx_PERIOD 21
#define MC13783_LED_Cx_PERIOD_MASK 0x3
#define MC13783_LED_Cx_SLEWLIM_BIT (1 << 23)
#define MC13783_LED_Cx_TRIODE_TC_BIT (1 << 23)
#define MC13783_LED_Cx_TC_C_MASK 0x3
static void mc13783_led_work(struct work_struct *work)
{
struct mc13783_led *led = container_of(work, struct mc13783_led, work);
int reg = 0;
int mask = 0;
int value = 0;
int bank, off, shift;
switch (led->id) {
case MC13783_LED_MD:
reg = MC13783_REG_LED_CONTROL_2;
mask = MC13783_LED_C2_BL_P_MASK << MC13783_LED_C2_MD_P;
value = (led->new_brightness >> 4) << MC13783_LED_C2_MD_P;
break;
case MC13783_LED_AD:
reg = MC13783_REG_LED_CONTROL_2;
mask = MC13783_LED_C2_BL_P_MASK << MC13783_LED_C2_AD_P;
value = (led->new_brightness >> 4) << MC13783_LED_C2_AD_P;
break;
case MC13783_LED_KP:
reg = MC13783_REG_LED_CONTROL_2;
mask = MC13783_LED_C2_BL_P_MASK << MC13783_LED_C2_KP_P;
value = (led->new_brightness >> 4) << MC13783_LED_C2_KP_P;
break;
case MC13783_LED_R1:
case MC13783_LED_G1:
case MC13783_LED_B1:
case MC13783_LED_R2:
case MC13783_LED_G2:
case MC13783_LED_B2:
case MC13783_LED_R3:
case MC13783_LED_G3:
case MC13783_LED_B3:
off = led->id - MC13783_LED_R1;
bank = off/3;
reg = MC13783_REG_LED_CONTROL_3 + off/3;
shift = (off - bank * 3) * 5 + MC13783_LED_C3_TC_P;
value = (led->new_brightness >> 3) << shift;
mask = MC13783_LED_C3_TC_P_MASK << shift;
break;
}
mc13783_lock(led->master);
mc13783_reg_rmw(led->master, reg, mask, value);
mc13783_unlock(led->master);
}
static void mc13783_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct mc13783_led *led;
led = container_of(led_cdev, struct mc13783_led, cdev);
led->new_brightness = value;
schedule_work(&led->work);
}
static int __devinit mc13783_led_setup(struct mc13783_led *led, int max_current)
{
int shift = 0;
int mask = 0;
int value = 0;
int reg = 0;
int ret, bank;
switch (led->id) {
case MC13783_LED_MD:
shift = MC13783_LED_C2_MD_C;
mask = MC13783_LED_C2_BL_C_MASK;
value = max_current & MC13783_LED_C2_BL_C_MASK;
reg = MC13783_REG_LED_CONTROL_2;
break;
case MC13783_LED_AD:
shift = MC13783_LED_C2_AD_C;
mask = MC13783_LED_C2_BL_C_MASK;
value = max_current & MC13783_LED_C2_BL_C_MASK;
reg = MC13783_REG_LED_CONTROL_2;
break;
case MC13783_LED_KP:
shift = MC13783_LED_C2_KP_C;
mask = MC13783_LED_C2_BL_C_MASK;
value = max_current & MC13783_LED_C2_BL_C_MASK;
reg = MC13783_REG_LED_CONTROL_2;
break;
case MC13783_LED_R1:
case MC13783_LED_G1:
case MC13783_LED_B1:
case MC13783_LED_R2:
case MC13783_LED_G2:
case MC13783_LED_B2:
case MC13783_LED_R3:
case MC13783_LED_G3:
case MC13783_LED_B3:
bank = (led->id - MC13783_LED_R1)/3;
reg = MC13783_REG_LED_CONTROL_3 + bank;
shift = ((led->id - MC13783_LED_R1) - bank * 3) * 2;
mask = MC13783_LED_Cx_TC_C_MASK;
value = max_current & MC13783_LED_Cx_TC_C_MASK;
break;
}
mc13783_lock(led->master);
ret = mc13783_reg_rmw(led->master, reg, mask << shift,
value << shift);
mc13783_unlock(led->master);
return ret;
}
static int __devinit mc13783_leds_prepare(struct platform_device *pdev)
{
struct mc13783_leds_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct mc13783 *dev = dev_get_drvdata(pdev->dev.parent);
int ret = 0;
int reg = 0;
mc13783_lock(dev);
if (pdata->flags & MC13783_LED_TC1HALF)
reg |= MC13783_LED_C1_TC1HALF_BIT;
if (pdata->flags & MC13783_LED_SLEWLIMTC)
reg |= MC13783_LED_Cx_SLEWLIM_BIT;
ret = mc13783_reg_write(dev, MC13783_REG_LED_CONTROL_1, reg);
if (ret)
goto out;
reg = (pdata->bl_period & MC13783_LED_Cx_PERIOD_MASK) <<
MC13783_LED_Cx_PERIOD;
if (pdata->flags & MC13783_LED_SLEWLIMBL)
reg |= MC13783_LED_Cx_SLEWLIM_BIT;
ret = mc13783_reg_write(dev, MC13783_REG_LED_CONTROL_2, reg);
if (ret)
goto out;
reg = (pdata->tc1_period & MC13783_LED_Cx_PERIOD_MASK) <<
MC13783_LED_Cx_PERIOD;
if (pdata->flags & MC13783_LED_TRIODE_TC1)
reg |= MC13783_LED_Cx_TRIODE_TC_BIT;
ret = mc13783_reg_write(dev, MC13783_REG_LED_CONTROL_3, reg);
if (ret)
goto out;
reg = (pdata->tc2_period & MC13783_LED_Cx_PERIOD_MASK) <<
MC13783_LED_Cx_PERIOD;
if (pdata->flags & MC13783_LED_TRIODE_TC2)
reg |= MC13783_LED_Cx_TRIODE_TC_BIT;
ret = mc13783_reg_write(dev, MC13783_REG_LED_CONTROL_4, reg);
if (ret)
goto out;
reg = (pdata->tc3_period & MC13783_LED_Cx_PERIOD_MASK) <<
MC13783_LED_Cx_PERIOD;
if (pdata->flags & MC13783_LED_TRIODE_TC3)
reg |= MC13783_LED_Cx_TRIODE_TC_BIT;;
ret = mc13783_reg_write(dev, MC13783_REG_LED_CONTROL_5, reg);
if (ret)
goto out;
reg = MC13783_LED_C0_ENABLE_BIT;
if (pdata->flags & MC13783_LED_TRIODE_MD)
reg |= MC13783_LED_C0_TRIODE_MD_BIT;
if (pdata->flags & MC13783_LED_TRIODE_AD)
reg |= MC13783_LED_C0_TRIODE_AD_BIT;
if (pdata->flags & MC13783_LED_TRIODE_KP)
reg |= MC13783_LED_C0_TRIODE_KP_BIT;
if (pdata->flags & MC13783_LED_BOOST_EN)
reg |= MC13783_LED_C0_BOOST_BIT;
reg |= (pdata->abmode & MC13783_LED_C0_ABMODE_MASK) <<
MC13783_LED_C0_ABMODE;
reg |= (pdata->abref & MC13783_LED_C0_ABREF_MASK) <<
MC13783_LED_C0_ABREF;
ret = mc13783_reg_write(dev, MC13783_REG_LED_CONTROL_0, reg);
out:
mc13783_unlock(dev);
return ret;
}
static int __devinit mc13783_led_probe(struct platform_device *pdev)
{
struct mc13783_leds_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct mc13783_led_platform_data *led_cur;
struct mc13783_led *led, *led_dat;
int ret, i;
int init_led = 0;
if (pdata == NULL) {
dev_err(&pdev->dev, "missing platform data\n");
return -ENODEV;
}
if (pdata->num_leds < 1 || pdata->num_leds > MC13783_LED_MAX) {
dev_err(&pdev->dev, "Invalid led count %d\n", pdata->num_leds);
return -EINVAL;
}
led = kzalloc(sizeof(*led) * pdata->num_leds, GFP_KERNEL);
if (led == NULL) {
dev_err(&pdev->dev, "failed to alloc memory\n");
return -ENOMEM;
}
ret = mc13783_leds_prepare(pdev);
if (ret) {
dev_err(&pdev->dev, "unable to init led driver\n");
goto err_free;
}
for (i = 0; i < pdata->num_leds; i++) {
led_dat = &led[i];
led_cur = &pdata->led[i];
if (led_cur->id > MC13783_LED_MAX || led_cur->id < 0) {
dev_err(&pdev->dev, "invalid id %d\n", led_cur->id);
ret = -EINVAL;
goto err_register;
}
if (init_led & (1 << led_cur->id)) {
dev_err(&pdev->dev, "led %d already initialized\n",
led_cur->id);
ret = -EINVAL;
goto err_register;
}
init_led |= 1 << led_cur->id;
led_dat->cdev.name = led_cur->name;
led_dat->cdev.default_trigger = led_cur->default_trigger;
led_dat->cdev.brightness_set = mc13783_led_set;
led_dat->cdev.brightness = LED_OFF;
led_dat->id = led_cur->id;
led_dat->master = dev_get_drvdata(pdev->dev.parent);
INIT_WORK(&led_dat->work, mc13783_led_work);
ret = led_classdev_register(pdev->dev.parent, &led_dat->cdev);
if (ret) {
dev_err(&pdev->dev, "failed to register led %d\n",
led_dat->id);
goto err_register;
}
ret = mc13783_led_setup(led_dat, led_cur->max_current);
if (ret) {
dev_err(&pdev->dev, "unable to init led %d\n",
led_dat->id);
i++;
goto err_register;
}
}
platform_set_drvdata(pdev, led);
return 0;
err_register:
for (i = i - 1; i >= 0; i--) {
led_classdev_unregister(&led[i].cdev);
cancel_work_sync(&led[i].work);
}
err_free:
kfree(led);
return ret;
}
static int __devexit mc13783_led_remove(struct platform_device *pdev)
{
struct mc13783_leds_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct mc13783_led *led = platform_get_drvdata(pdev);
struct mc13783 *dev = dev_get_drvdata(pdev->dev.parent);
int i;
for (i = 0; i < pdata->num_leds; i++) {
led_classdev_unregister(&led[i].cdev);
cancel_work_sync(&led[i].work);
}
mc13783_lock(dev);
mc13783_reg_write(dev, MC13783_REG_LED_CONTROL_0, 0);
mc13783_reg_write(dev, MC13783_REG_LED_CONTROL_1, 0);
mc13783_reg_write(dev, MC13783_REG_LED_CONTROL_2, 0);
mc13783_reg_write(dev, MC13783_REG_LED_CONTROL_3, 0);
mc13783_reg_write(dev, MC13783_REG_LED_CONTROL_4, 0);
mc13783_reg_write(dev, MC13783_REG_LED_CONTROL_5, 0);
mc13783_unlock(dev);
kfree(led);
return 0;
}
static struct platform_driver mc13783_led_driver = {
.driver = {
.name = "mc13783-led",
.owner = THIS_MODULE,
},
.probe = mc13783_led_probe,
.remove = __devexit_p(mc13783_led_remove),
};
static int __init mc13783_led_init(void)
{
return platform_driver_register(&mc13783_led_driver);
}
module_init(mc13783_led_init);
static void __exit mc13783_led_exit(void)
{
platform_driver_unregister(&mc13783_led_driver);
}
module_exit(mc13783_led_exit);
MODULE_DESCRIPTION("LEDs driver for Freescale MC13783 PMIC");
MODULE_AUTHOR("Philippe Retornaz <philippe.retornaz@epfl.ch>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:mc13783-led");

94
drivers/leds/leds-net5501.c Normal file
View File

@ -0,0 +1,94 @@
/*
* Soekris board support code
*
* Copyright (C) 2008-2009 Tower Technologies
* Written by Alessandro Zummo <a.zummo@towertech.it>
*
* 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/io.h>
#include <linux/string.h>
#include <linux/leds.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <asm/geode.h>
static struct gpio_led net5501_leds[] = {
{
.name = "error",
.gpio = 6,
.default_trigger = "default-on",
},
};
static struct gpio_led_platform_data net5501_leds_data = {
.num_leds = ARRAY_SIZE(net5501_leds),
.leds = net5501_leds,
};
static struct platform_device net5501_leds_dev = {
.name = "leds-gpio",
.id = -1,
.dev.platform_data = &net5501_leds_data,
};
static void __init init_net5501(void)
{
platform_device_register(&net5501_leds_dev);
}
struct soekris_board {
u16 offset;
char *sig;
u8 len;
void (*init)(void);
};
static struct soekris_board __initdata boards[] = {
{ 0xb7b, "net5501", 7, init_net5501 }, /* net5501 v1.33/1.33c */
{ 0xb1f, "net5501", 7, init_net5501 }, /* net5501 v1.32i */
};
static int __init soekris_init(void)
{
int i;
unsigned char *rombase, *bios;
if (!is_geode())
return 0;
rombase = ioremap(0xffff0000, 0xffff);
if (!rombase) {
printk(KERN_INFO "Soekris net5501 LED driver failed to get rombase");
return 0;
}
bios = rombase + 0x20; /* null terminated */
if (strncmp(bios, "comBIOS", 7))
goto unmap;
for (i = 0; i < ARRAY_SIZE(boards); i++) {
unsigned char *model = rombase + boards[i].offset;
if (strncmp(model, boards[i].sig, boards[i].len) == 0) {
printk(KERN_INFO "Soekris %s: %s\n", model, bios);
if (boards[i].init)
boards[i].init();
break;
}
}
unmap:
iounmap(rombase);
return 0;
}
arch_initcall(soekris_init);

2
drivers/leds/leds-ss4200.c
View File

@ -534,7 +534,7 @@ static int __init nas_gpio_init(void)
set_power_light_amber_noblink();
return 0;
out_err:
for (; i >= 0; i--)
for (i--; i >= 0; i--)
unregister_nasgpio_led(i);
pci_unregister_driver(&nas_gpio_pci_driver);
return ret;

4
drivers/mfd/mc13783-core.c
View File

@ -679,6 +679,10 @@ err_revision:
if (pdata->flags & MC13783_USE_TOUCHSCREEN)
mc13783_add_subdevice(mc13783, "mc13783-ts");
if (pdata->flags & MC13783_USE_LED)
mc13783_add_subdevice_pdata(mc13783, "mc13783-led",
pdata->leds, sizeof(*pdata->leds));
return 0;
}

12
include/linux/leds.h
View File

@ -149,14 +149,18 @@ struct gpio_led {
unsigned default_state : 2;
/* default_state should be one of LEDS_GPIO_DEFSTATE_(ON|OFF|KEEP) */
};
#define LEDS_GPIO_DEFSTATE_OFF 0
#define LEDS_GPIO_DEFSTATE_ON 1
#define LEDS_GPIO_DEFSTATE_KEEP 2
#define LEDS_GPIO_DEFSTATE_OFF 0
#define LEDS_GPIO_DEFSTATE_ON 1
#define LEDS_GPIO_DEFSTATE_KEEP 2
struct gpio_led_platform_data {
int num_leds;
struct gpio_led *leds;
int (*gpio_blink_set)(unsigned gpio,
#define GPIO_LED_NO_BLINK_LOW 0 /* No blink GPIO state low */
#define GPIO_LED_NO_BLINK_HIGH 1 /* No blink GPIO state high */
#define GPIO_LED_BLINK 2 /* Plase, blink */
int (*gpio_blink_set)(unsigned gpio, int state,
unsigned long *delay_on,
unsigned long *delay_off);
};

66
include/linux/mfd/mc13783.h
View File

@ -64,6 +64,70 @@ static inline int mc13783_ackirq(struct mc13783 *mc13783, int irq)
MC13783_ADC0_TSMOD1 | \
MC13783_ADC0_TSMOD2)
struct mc13783_led_platform_data {
#define MC13783_LED_MD 0
#define MC13783_LED_AD 1
#define MC13783_LED_KP 2
#define MC13783_LED_R1 3
#define MC13783_LED_G1 4
#define MC13783_LED_B1 5
#define MC13783_LED_R2 6
#define MC13783_LED_G2 7
#define MC13783_LED_B2 8
#define MC13783_LED_R3 9
#define MC13783_LED_G3 10
#define MC13783_LED_B3 11
#define MC13783_LED_MAX MC13783_LED_B3
int id;
const char *name;
const char *default_trigger;
/* Three or two bits current selection depending on the led */
char max_current;
};
struct mc13783_leds_platform_data {
int num_leds;
struct mc13783_led_platform_data *led;
#define MC13783_LED_TRIODE_MD (1 << 0)
#define MC13783_LED_TRIODE_AD (1 << 1)
#define MC13783_LED_TRIODE_KP (1 << 2)
#define MC13783_LED_BOOST_EN (1 << 3)
#define MC13783_LED_TC1HALF (1 << 4)
#define MC13783_LED_SLEWLIMTC (1 << 5)
#define MC13783_LED_SLEWLIMBL (1 << 6)
#define MC13783_LED_TRIODE_TC1 (1 << 7)
#define MC13783_LED_TRIODE_TC2 (1 << 8)
#define MC13783_LED_TRIODE_TC3 (1 << 9)
int flags;
#define MC13783_LED_AB_DISABLED 0
#define MC13783_LED_AB_MD1 1
#define MC13783_LED_AB_MD12 2
#define MC13783_LED_AB_MD123 3
#define MC13783_LED_AB_MD1234 4
#define MC13783_LED_AB_MD1234_AD1 5
#define MC13783_LED_AB_MD1234_AD12 6
#define MC13783_LED_AB_MD1_AD 7
char abmode;
#define MC13783_LED_ABREF_200MV 0
#define MC13783_LED_ABREF_400MV 1
#define MC13783_LED_ABREF_600MV 2
#define MC13783_LED_ABREF_800MV 3
char abref;
#define MC13783_LED_PERIOD_10MS 0
#define MC13783_LED_PERIOD_100MS 1
#define MC13783_LED_PERIOD_500MS 2
#define MC13783_LED_PERIOD_2S 3
char bl_period;
char tc1_period;
char tc2_period;
char tc3_period;
};
/* to be cleaned up */
struct regulator_init_data;
@ -80,12 +144,14 @@ struct mc13783_regulator_platform_data {
struct mc13783_platform_data {
int num_regulators;
struct mc13783_regulator_init_data *regulators;
struct mc13783_leds_platform_data *leds;
#define MC13783_USE_TOUCHSCREEN (1 << 0)
#define MC13783_USE_CODEC (1 << 1)
#define MC13783_USE_ADC (1 << 2)
#define MC13783_USE_RTC (1 << 3)
#define MC13783_USE_REGULATOR (1 << 4)
#define MC13783_USE_LED (1 << 5)
unsigned int flags;
};