diff options
Diffstat (limited to 'drivers/leds')
| -rw-r--r-- | drivers/leds/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/leds/Makefile | 1 | ||||
| -rw-r--r-- | drivers/leds/led-triggers.c | 20 | ||||
| -rw-r--r-- | drivers/leds/leds-88pm860x.c | 60 | ||||
| -rw-r--r-- | drivers/leds/leds-bd2802.c | 47 | ||||
| -rw-r--r-- | drivers/leds/leds-lm3530.c | 378 | ||||
| -rw-r--r-- | drivers/leds/leds-lp5521.c | 14 | ||||
| -rw-r--r-- | drivers/leds/leds-lp5523.c | 20 | ||||
| -rw-r--r-- | drivers/leds/leds-mc13783.c | 7 | ||||
| -rw-r--r-- | drivers/leds/leds-net5501.c | 2 | ||||
| -rw-r--r-- | drivers/leds/leds-pca9532.c | 2 | ||||
| -rw-r--r-- | drivers/leds/leds-regulator.c | 4 | ||||
| -rw-r--r-- | drivers/leds/leds-wm8350.c | 4 |
13 files changed, 494 insertions, 75 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 6f190f4cdbc0..9bec8699b8a3 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -34,6 +34,16 @@ config LEDS_ATMEL_PWM This option enables support for LEDs driven using outputs of the dedicated PWM controller found on newer Atmel SOCs. +config LEDS_LM3530 + tristate "LCD Backlight driver for LM3530" + depends on LEDS_CLASS + depends on I2C + help + This option enables support for the LCD backlight using + LM3530 ambient light sensor chip. This ALS chip can be + controlled manually or using PWM input or using ambient + light automatically. + config LEDS_LOCOMO tristate "LED Support for Locomo device" depends on LEDS_CLASS diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index aae6989ff6b6..39c80fca84d2 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -9,6 +9,7 @@ obj-$(CONFIG_LEDS_88PM860X) += leds-88pm860x.o obj-$(CONFIG_LEDS_ATMEL_PWM) += leds-atmel-pwm.o obj-$(CONFIG_LEDS_BD2802) += leds-bd2802.o obj-$(CONFIG_LEDS_LOCOMO) += leds-locomo.o +obj-$(CONFIG_LEDS_LM3530) += leds-lm3530.o obj-$(CONFIG_LEDS_MIKROTIK_RB532) += leds-rb532.o obj-$(CONFIG_LEDS_S3C24XX) += leds-s3c24xx.o obj-$(CONFIG_LEDS_AMS_DELTA) += leds-ams-delta.o diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c index c41eb6180c9c..4bebae733349 100644 --- a/drivers/leds/led-triggers.c +++ b/drivers/leds/led-triggers.c @@ -231,6 +231,26 @@ void led_trigger_event(struct led_trigger *trigger, } EXPORT_SYMBOL_GPL(led_trigger_event); +void led_trigger_blink(struct led_trigger *trigger, + unsigned long *delay_on, + unsigned long *delay_off) +{ + struct list_head *entry; + + if (!trigger) + return; + + read_lock(&trigger->leddev_list_lock); + list_for_each(entry, &trigger->led_cdevs) { + struct led_classdev *led_cdev; + + led_cdev = list_entry(entry, struct led_classdev, trig_list); + led_blink_set(led_cdev, delay_on, delay_off); + } + read_unlock(&trigger->leddev_list_lock); +} +EXPORT_SYMBOL_GPL(led_trigger_blink); + void led_trigger_register_simple(const char *name, struct led_trigger **tp) { struct led_trigger *trigger; diff --git a/drivers/leds/leds-88pm860x.c b/drivers/leds/leds-88pm860x.c index e672b44ee172..416def84d045 100644 --- a/drivers/leds/leds-88pm860x.c +++ b/drivers/leds/leds-88pm860x.c @@ -17,6 +17,7 @@ #include <linux/leds.h> #include <linux/slab.h> #include <linux/workqueue.h> +#include <linux/mfd/core.h> #include <linux/mfd/88pm860x.h> #define LED_PWM_SHIFT (3) @@ -118,7 +119,8 @@ static void pm860x_led_work(struct work_struct *work) struct pm860x_led *led; struct pm860x_chip *chip; - int mask; + unsigned char buf[3]; + int mask, ret; led = container_of(work, struct pm860x_led, work); chip = led->chip; @@ -128,16 +130,27 @@ static void pm860x_led_work(struct work_struct *work) pm860x_set_bits(led->i2c, __led_off(led->port), LED_CURRENT_MASK, led->iset); } + pm860x_set_bits(led->i2c, __blink_off(led->port), + LED_BLINK_MASK, LED_ON_CONTINUOUS); mask = __blink_ctl_mask(led->port); pm860x_set_bits(led->i2c, PM8606_WLED3B, mask, mask); - } else if (led->brightness == 0) { - pm860x_set_bits(led->i2c, __led_off(led->port), - LED_CURRENT_MASK, 0); - mask = __blink_ctl_mask(led->port); - pm860x_set_bits(led->i2c, PM8606_WLED3B, mask, 0); } pm860x_set_bits(led->i2c, __led_off(led->port), LED_PWM_MASK, led->brightness); + + if (led->brightness == 0) { + pm860x_bulk_read(led->i2c, __led_off(led->port), 3, buf); + ret = buf[0] & LED_PWM_MASK; + ret |= buf[1] & LED_PWM_MASK; + ret |= buf[2] & LED_PWM_MASK; + if (ret == 0) { + /* unset current since no led is lighting */ + pm860x_set_bits(led->i2c, __led_off(led->port), + LED_CURRENT_MASK, 0); + mask = __blink_ctl_mask(led->port); + pm860x_set_bits(led->i2c, PM8606_WLED3B, mask, 0); + } + } led->current_brightness = led->brightness; dev_dbg(chip->dev, "Update LED. (reg:%d, brightness:%d)\n", __led_off(led->port), led->brightness); @@ -153,31 +166,12 @@ static void pm860x_led_set(struct led_classdev *cdev, schedule_work(&data->work); } -static int __check_device(struct pm860x_led_pdata *pdata, char *name) -{ - struct pm860x_led_pdata *p = pdata; - int ret = -EINVAL; - - while (p && p->id) { - if ((p->id != PM8606_ID_LED) || (p->flags < 0)) - break; - - if (!strncmp(name, pm860x_led_name[p->flags], - MFD_NAME_SIZE)) { - ret = (int)p->flags; - break; - } - p++; - } - return ret; -} - static int pm860x_led_probe(struct platform_device *pdev) { struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent); - struct pm860x_platform_data *pm860x_pdata; struct pm860x_led_pdata *pdata; struct pm860x_led *data; + struct mfd_cell *cell; struct resource *res; int ret; @@ -187,10 +181,11 @@ static int pm860x_led_probe(struct platform_device *pdev) return -EINVAL; } - if (pdev->dev.parent->platform_data) { - pm860x_pdata = pdev->dev.parent->platform_data; - pdata = pm860x_pdata->led; - } else { + cell = pdev->dev.platform_data; + if (cell == NULL) + return -ENODEV; + pdata = cell->mfd_data; + if (pdata == NULL) { dev_err(&pdev->dev, "No platform data!\n"); return -EINVAL; } @@ -198,12 +193,12 @@ static int pm860x_led_probe(struct platform_device *pdev) data = kzalloc(sizeof(struct pm860x_led), GFP_KERNEL); if (data == NULL) return -ENOMEM; - strncpy(data->name, res->name, MFD_NAME_SIZE); + strncpy(data->name, res->name, MFD_NAME_SIZE - 1); dev_set_drvdata(&pdev->dev, data); data->chip = chip; data->i2c = (chip->id == CHIP_PM8606) ? chip->client : chip->companion; data->iset = pdata->iset; - data->port = __check_device(pdata, data->name); + data->port = pdata->flags; if (data->port < 0) { dev_err(&pdev->dev, "check device failed\n"); kfree(data); @@ -221,6 +216,7 @@ static int pm860x_led_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Failed to register LED: %d\n", ret); goto out; } + pm860x_led_set(&data->cdev, 0); return 0; out: kfree(data); diff --git a/drivers/leds/leds-bd2802.c b/drivers/leds/leds-bd2802.c index 19dc4b61a105..3ebe3824662d 100644 --- a/drivers/leds/leds-bd2802.c +++ b/drivers/leds/leds-bd2802.c @@ -19,7 +19,7 @@ #include <linux/leds.h> #include <linux/leds-bd2802.h> #include <linux/slab.h> - +#include <linux/pm.h> #define LED_CTL(rgb2en, rgb1en) ((rgb2en) << 4 | ((rgb1en) << 0)) @@ -319,20 +319,6 @@ static void bd2802_turn_off(struct bd2802_led *led, enum led_ids id, bd2802_update_state(led, id, color, BD2802_OFF); } -static void bd2802_restore_state(struct bd2802_led *led) -{ - int i; - - for (i = 0; i < LED_NUM; i++) { - if (led->led[i].r) - bd2802_turn_on(led, i, RED, led->led[i].r); - if (led->led[i].g) - bd2802_turn_on(led, i, GREEN, led->led[i].g); - if (led->led[i].b) - bd2802_turn_on(led, i, BLUE, led->led[i].b); - } -} - #define BD2802_SET_REGISTER(reg_addr, reg_name) \ static ssize_t bd2802_store_reg##reg_addr(struct device *dev, \ struct device_attribute *attr, const char *buf, size_t count) \ @@ -761,8 +747,25 @@ static int __exit bd2802_remove(struct i2c_client *client) return 0; } -static int bd2802_suspend(struct i2c_client *client, pm_message_t mesg) +#ifdef CONFIG_PM + +static void bd2802_restore_state(struct bd2802_led *led) { + int i; + + for (i = 0; i < LED_NUM; i++) { + if (led->led[i].r) + bd2802_turn_on(led, i, RED, led->led[i].r); + if (led->led[i].g) + bd2802_turn_on(led, i, GREEN, led->led[i].g); + if (led->led[i].b) + bd2802_turn_on(led, i, BLUE, led->led[i].b); + } +} + +static int bd2802_suspend(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); struct bd2802_led *led = i2c_get_clientdata(client); gpio_set_value(led->pdata->reset_gpio, 0); @@ -770,8 +773,9 @@ static int bd2802_suspend(struct i2c_client *client, pm_message_t mesg) return 0; } -static int bd2802_resume(struct i2c_client *client) +static int bd2802_resume(struct device *dev) { + struct i2c_client *client = to_i2c_client(dev); struct bd2802_led *led = i2c_get_clientdata(client); if (!bd2802_is_all_off(led) || led->adf_on) { @@ -782,6 +786,12 @@ static int bd2802_resume(struct i2c_client *client) return 0; } +static SIMPLE_DEV_PM_OPS(bd2802_pm, bd2802_suspend, bd2802_resume); +#define BD2802_PM (&bd2802_pm) +#else /* CONFIG_PM */ +#define BD2802_PM NULL +#endif + static const struct i2c_device_id bd2802_id[] = { { "BD2802", 0 }, { } @@ -791,11 +801,10 @@ MODULE_DEVICE_TABLE(i2c, bd2802_id); static struct i2c_driver bd2802_i2c_driver = { .driver = { .name = "BD2802", + .pm = BD2802_PM, }, .probe = bd2802_probe, .remove = __exit_p(bd2802_remove), - .suspend = bd2802_suspend, - .resume = bd2802_resume, .id_table = bd2802_id, }; diff --git a/drivers/leds/leds-lm3530.c b/drivers/leds/leds-lm3530.c new file mode 100644 index 000000000000..e7089a1f6cb6 --- /dev/null +++ b/drivers/leds/leds-lm3530.c @@ -0,0 +1,378 @@ +/* + * Copyright (C) 2011 ST-Ericsson SA. + * Copyright (C) 2009 Motorola, Inc. + * + * License Terms: GNU General Public License v2 + * + * Simple driver for National Semiconductor LM3530 Backlight driver chip + * + * Author: Shreshtha Kumar SAHU <shreshthakumar.sahu@stericsson.com> + * based on leds-lm3530.c by Dan Murphy <D.Murphy@motorola.com> + */ + +#include <linux/i2c.h> +#include <linux/leds.h> +#include <linux/slab.h> +#include <linux/platform_device.h> +#include <linux/input.h> +#include <linux/led-lm3530.h> +#include <linux/types.h> + +#define LM3530_LED_DEV "lcd-backlight" +#define LM3530_NAME "lm3530-led" + +#define LM3530_GEN_CONFIG 0x10 +#define LM3530_ALS_CONFIG 0x20 +#define LM3530_BRT_RAMP_RATE 0x30 +#define LM3530_ALS_ZONE_REG 0x40 +#define LM3530_ALS_IMP_SELECT 0x41 +#define LM3530_BRT_CTRL_REG 0xA0 +#define LM3530_ALS_ZB0_REG 0x60 +#define LM3530_ALS_ZB1_REG 0x61 +#define LM3530_ALS_ZB2_REG 0x62 +#define LM3530_ALS_ZB3_REG 0x63 +#define LM3530_ALS_Z0T_REG 0x70 +#define LM3530_ALS_Z1T_REG 0x71 +#define LM3530_ALS_Z2T_REG 0x72 +#define LM3530_ALS_Z3T_REG 0x73 +#define LM3530_ALS_Z4T_REG 0x74 +#define LM3530_REG_MAX 15 + +/* General Control Register */ +#define LM3530_EN_I2C_SHIFT (0) +#define LM3530_RAMP_LAW_SHIFT (1) +#define LM3530_MAX_CURR_SHIFT (2) +#define LM3530_EN_PWM_SHIFT (5) +#define LM3530_PWM_POL_SHIFT (6) +#define LM3530_EN_PWM_SIMPLE_SHIFT (7) + +#define LM3530_ENABLE_I2C (1 << LM3530_EN_I2C_SHIFT) +#define LM3530_ENABLE_PWM (1 << LM3530_EN_PWM_SHIFT) +#define LM3530_POL_LOW (1 << LM3530_PWM_POL_SHIFT) +#define LM3530_ENABLE_PWM_SIMPLE (1 << LM3530_EN_PWM_SIMPLE_SHIFT) + +/* ALS Config Register Options */ +#define LM3530_ALS_AVG_TIME_SHIFT (0) +#define LM3530_EN_ALS_SHIFT (3) +#define LM3530_ALS_SEL_SHIFT (5) + +#define LM3530_ENABLE_ALS (3 << LM3530_EN_ALS_SHIFT) + +/* Brightness Ramp Rate Register */ +#define LM3530_BRT_RAMP_FALL_SHIFT (0) +#define LM3530_BRT_RAMP_RISE_SHIFT (3) + +/* ALS Resistor Select */ +#define LM3530_ALS1_IMP_SHIFT (0) +#define LM3530_ALS2_IMP_SHIFT (4) + +/* Zone Boundary Register defaults */ +#define LM3530_DEF_ZB_0 (0x33) +#define LM3530_DEF_ZB_1 (0x66) +#define LM3530_DEF_ZB_2 (0x99) +#define LM3530_DEF_ZB_3 (0xCC) + +/* Zone Target Register defaults */ +#define LM3530_DEF_ZT_0 (0x19) +#define LM3530_DEF_ZT_1 (0x33) +#define LM3530_DEF_ZT_2 (0x4C) +#define LM3530_DEF_ZT_3 (0x66) +#define LM3530_DEF_ZT_4 (0x7F) + +struct lm3530_mode_map { + const char *mode; + enum lm3530_mode mode_val; +}; + +static struct lm3530_mode_map mode_map[] = { + { "man", LM3530_BL_MODE_MANUAL }, + { "als", LM3530_BL_MODE_ALS }, + { "pwm", LM3530_BL_MODE_PWM }, +}; + +/** + * struct lm3530_data + * @led_dev: led class device + * @client: i2c client + * @pdata: LM3530 platform data + * @mode: mode of operation - manual, ALS, PWM + */ +struct lm3530_data { + struct led_classdev led_dev; + struct i2c_client *client; + struct lm3530_platform_data *pdata; + enum lm3530_mode mode; +}; + +static const u8 lm3530_reg[LM3530_REG_MAX] = { + LM3530_GEN_CONFIG, + LM3530_ALS_CONFIG, + LM3530_BRT_RAMP_RATE, + LM3530_ALS_ZONE_REG, + LM3530_ALS_IMP_SELECT, + LM3530_BRT_CTRL_REG, + LM3530_ALS_ZB0_REG, + LM3530_ALS_ZB1_REG, + LM3530_ALS_ZB2_REG, + LM3530_ALS_ZB3_REG, + LM3530_ALS_Z0T_REG, + LM3530_ALS_Z1T_REG, + LM3530_ALS_Z2T_REG, + LM3530_ALS_Z3T_REG, + LM3530_ALS_Z4T_REG, +}; + +static int lm3530_get_mode_from_str(const char *str) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(mode_map); i++) + if (sysfs_streq(str, mode_map[i].mode)) + return mode_map[i].mode_val; + + return -1; +} + +static int lm3530_init_registers(struct lm3530_data *drvdata) +{ + int ret = 0; + int i; + u8 gen_config; + u8 als_config = 0; + u8 brt_ramp; + u8 als_imp_sel = 0; + u8 brightness; + u8 reg_val[LM3530_REG_MAX]; + struct lm3530_platform_data *pltfm = drvdata->pdata; + struct i2c_client *client = drvdata->client; + + gen_config = (pltfm->brt_ramp_law << LM3530_RAMP_LAW_SHIFT) | + ((pltfm->max_current & 7) << LM3530_MAX_CURR_SHIFT); + + if (drvdata->mode == LM3530_BL_MODE_MANUAL || + drvdata->mode == LM3530_BL_MODE_ALS) + gen_config |= (LM3530_ENABLE_I2C); + + if (drvdata->mode == LM3530_BL_MODE_ALS) { + als_config = + (pltfm->als_avrg_time << LM3530_ALS_AVG_TIME_SHIFT) | + (LM3530_ENABLE_ALS) | + (pltfm->als_input_mode << LM3530_ALS_SEL_SHIFT); + + als_imp_sel = + (pltfm->als1_resistor_sel << LM3530_ALS1_IMP_SHIFT) | + (pltfm->als2_resistor_sel << LM3530_ALS2_IMP_SHIFT); + } + + if (drvdata->mode == LM3530_BL_MODE_PWM) + gen_config |= (LM3530_ENABLE_PWM) | + (pltfm->pwm_pol_hi << LM3530_PWM_POL_SHIFT) | + (LM3530_ENABLE_PWM_SIMPLE); + + brt_ramp = (pltfm->brt_ramp_fall << LM3530_BRT_RAMP_FALL_SHIFT) | + (pltfm->brt_ramp_rise << LM3530_BRT_RAMP_RISE_SHIFT); + + brightness = pltfm->brt_val; + + reg_val[0] = gen_config; /* LM3530_GEN_CONFIG */ + reg_val[1] = als_config; /* LM3530_ALS_CONFIG */ + reg_val[2] = brt_ramp; /* LM3530_BRT_RAMP_RATE */ + reg_val[3] = 0x00; /* LM3530_ALS_ZONE_REG */ + reg_val[4] = als_imp_sel; /* LM3530_ALS_IMP_SELECT */ + reg_val[5] = brightness; /* LM3530_BRT_CTRL_REG */ + reg_val[6] = LM3530_DEF_ZB_0; /* LM3530_ALS_ZB0_REG */ + reg_val[7] = LM3530_DEF_ZB_1; /* LM3530_ALS_ZB1_REG */ + reg_val[8] = LM3530_DEF_ZB_2; /* LM3530_ALS_ZB2_REG */ + reg_val[9] = LM3530_DEF_ZB_3; /* LM3530_ALS_ZB3_REG */ + reg_val[10] = LM3530_DEF_ZT_0; /* LM3530_ALS_Z0T_REG */ + reg_val[11] = LM3530_DEF_ZT_1; /* LM3530_ALS_Z1T_REG */ + reg_val[12] = LM3530_DEF_ZT_2; /* LM3530_ALS_Z2T_REG */ + reg_val[13] = LM3530_DEF_ZT_3; /* LM3530_ALS_Z3T_REG */ + reg_val[14] = LM3530_DEF_ZT_4; /* LM3530_ALS_Z4T_REG */ + + for (i = 0; i < LM3530_REG_MAX; i++) { + ret = i2c_smbus_write_byte_data(client, + lm3530_reg[i], reg_val[i]); + if (ret) + break; + } + + return ret; +} + +static void lm3530_brightness_set(struct led_classdev *led_cdev, + enum led_brightness brt_val) +{ + int err; + struct lm3530_data *drvdata = + container_of(led_cdev, struct lm3530_data, led_dev); + + switch (drvdata->mode) { + case LM3530_BL_MODE_MANUAL: + + /* set the brightness in brightness control register*/ + err = i2c_smbus_write_byte_data(drvdata->client, + LM3530_BRT_CTRL_REG, brt_val / 2); + if (err) + dev_err(&drvdata->client->dev, + "Unable to set brightness: %d\n", err); + break; + case LM3530_BL_MODE_ALS: + break; + case LM3530_BL_MODE_PWM: + break; + default: + break; + } +} + + +static ssize_t lm3530_mode_set(struct device *dev, struct device_attribute + *attr, const char *buf, size_t size) +{ + int err; + struct i2c_client *client = container_of( + dev->parent, struct i2c_client, dev); + struct lm3530_data *drvdata = i2c_get_clientdata(client); + int mode; + + mode = lm3530_get_mode_from_str(buf); + if (mode < 0) { + dev_err(dev, "Invalid mode\n"); + return -EINVAL; + } + + if (mode == LM3530_BL_MODE_MANUAL) + drvdata->mode = LM3530_BL_MODE_MANUAL; + else if (mode == LM3530_BL_MODE_ALS) + drvdata->mode = LM3530_BL_MODE_ALS; + else if (mode == LM3530_BL_MODE_PWM) { + dev_err(dev, "PWM mode not supported\n"); + return -EINVAL; + } + + err = lm3530_init_registers(drvdata); + if (err) { + dev_err(dev, "Setting %s Mode failed :%d\n", buf, err); + return err; + } + + return sizeof(drvdata->mode); +} + +static DEVICE_ATTR(mode, 0644, NULL, lm3530_mode_set); + +static int __devinit lm3530_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct lm3530_platform_data *pdata = client->dev.platform_data; + struct lm3530_data *drvdata; + int err = 0; + + if (pdata == NULL) { + dev_err(&client->dev, "platform data required\n"); + err = -ENODEV; + goto err_out; + } + + /* BL mode */ + if (pdata->mode > LM3530_BL_MODE_PWM) { + dev_err(&client->dev, "Illegal Mode request\n"); + err = -EINVAL; + goto err_out; + } + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { + dev_err(&client->dev, "I2C_FUNC_I2C not supported\n"); + err = -EIO; + goto err_out; + } + + drvdata = kzalloc(sizeof(struct lm3530_data), GFP_KERNEL); + if (drvdata == NULL) { + err = -ENOMEM; + goto err_out; + } + + drvdata->mode = pdata->mode; + drvdata->client = client; + drvdata->pdata = pdata; + drvdata->led_dev.name = LM3530_LED_DEV; + drvdata->led_dev.brightness_set = lm3530_brightness_set; + + i2c_set_clientdata(client, drvdata); + + err = lm3530_init_registers(drvdata); + if (err < 0) { + dev_err(&client->dev, "Register Init failed: %d\n", err); + err = -ENODEV; + goto err_reg_init; + } + + err = led_classdev_register((struct device *) + &client->dev, &drvdata->led_dev); + if (err < 0) { + dev_err(&client->dev, "Register led class failed: %d\n", err); + err = -ENODEV; + goto err_class_register; + } + + err = device_create_file(drvdata->led_dev.dev, &dev_attr_mode); + if (err < 0) { + dev_err(&client->dev, "File device creation failed: %d\n", err); + err = -ENODEV; + goto err_create_file; + } + + return 0; + +err_create_file: + led_classdev_unregister(&drvdata->led_dev); +err_class_register: +err_reg_init: + kfree(drvdata); +err_out: + return err; +} + +static int __devexit lm3530_remove(struct i2c_client *client) +{ + struct lm3530_data *drvdata = i2c_get_clientdata(client); + + device_remove_file(drvdata->led_dev.dev, &dev_attr_mode); + led_classdev_unregister(&drvdata->led_dev); + kfree(drvdata); + return 0; +} + +static const struct i2c_device_id lm3530_id[] = { + {LM3530_NAME, 0}, + {} +}; + +static struct i2c_driver lm3530_i2c_driver = { + .probe = lm3530_probe, + .remove = lm3530_remove, + .id_table = lm3530_id, + .driver = { + .name = LM3530_NAME, + .owner = THIS_MODULE, + }, +}; + +static int __init lm3530_init(void) +{ + return i2c_add_driver(&lm3530_i2c_driver); +} + +static void __exit lm3530_exit(void) +{ + i2c_del_driver(&lm3530_i2c_driver); +} + +module_init(lm3530_init); +module_exit(lm3530_exit); + +MODULE_DESCRIPTION("Back Light driver for LM3530"); +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Shreshtha Kumar SAHU <shreshthakumar.sahu@stericsson.com>"); diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c index 80a3ae3c00b9..c0cff64a1ae6 100644 --- a/drivers/leds/leds-lp5521.c +++ b/drivers/leds/leds-lp5521.c @@ -534,7 +534,7 @@ static ssize_t lp5521_selftest(struct device *dev, } /* led class device attributes */ -static DEVICE_ATTR(led_current, S_IRUGO | S_IWUGO, show_current, store_current); +static DEVICE_ATTR(led_current, S_IRUGO | S_IWUSR, show_current, store_current); static DEVICE_ATTR(max_current, S_IRUGO , show_max_current, NULL); static struct attribute *lp5521_led_attributes[] = { @@ -548,15 +548,15 @@ static struct attribute_group lp5521_led_attribute_group = { }; /* device attributes */ -static DEVICE_ATTR(engine1_mode, S_IRUGO | S_IWUGO, +static DEVICE_ATTR(engine1_mode, S_IRUGO | S_IWUSR, show_engine1_mode, store_engine1_mode); -static DEVICE_ATTR(engine2_mode, S_IRUGO | S_IWUGO, +static DEVICE_ATTR(engine2_mode, S_IRUGO | S_IWUSR, show_engine2_mode, store_engine2_mode); -static DEVICE_ATTR(engine3_mode, S_IRUGO | S_IWUGO, +static DEVICE_ATTR(engine3_mode, S_IRUGO | S_IWUSR, show_engine3_mode, store_engine3_mode); -static DEVICE_ATTR(engine1_load, S_IWUGO, NULL, store_engine1_load); -static DEVICE_ATTR(engine2_load, S_IWUGO, NULL, store_engine2_load); -static DEVICE_ATTR(engine3_load, S_IWUGO, NULL, store_engine3_load); +static DEVICE_ATTR(engine1_load, S_IWUSR, NULL, store_engine1_load); +static DEVICE_ATTR(engine2_load, S_IWUSR, NULL, store_engine2_load); +static DEVICE_ATTR(engine3_load, S_IWUSR, NULL, store_engine3_load); static DEVICE_ATTR(selftest, S_IRUGO, lp5521_selftest, NULL); static struct attribute *lp5521_attributes[] = { diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c index d0c4068ecddd..e19fed25f137 100644 --- a/drivers/leds/leds-lp5523.c +++ b/drivers/leds/leds-lp5523.c @@ -713,7 +713,7 @@ static ssize_t store_current(struct device *dev, } /* led class device attributes */ -static DEVICE_ATTR(led_current, S_IRUGO | S_IWUGO, show_current, store_current); +static DEVICE_ATTR(led_current, S_IRUGO | S_IWUSR, show_current, store_current); static DEVICE_ATTR(max_current, S_IRUGO , show_max_current, NULL); static struct attribute *lp5523_led_attributes[] = { @@ -727,21 +727,21 @@ static struct attribute_group lp5523_led_attribute_group = { }; /* device attributes */ -static DEVICE_ATTR(engine1_mode, S_IRUGO | S_IWUGO, +static DEVICE_ATTR(engine1_mode, S_IRUGO | S_IWUSR, show_engine1_mode, store_engine1_mode); -static DEVICE_ATTR(engine2_mode, S_IRUGO | S_IWUGO, +static DEVICE_ATTR(engine2_mode, S_IRUGO | S_IWUSR, show_engine2_mode, store_engine2_mode); -static DEVICE_ATTR(engine3_mode, S_IRUGO | S_IWUGO, +static DEVICE_ATTR(engine3_mode, S_IRUGO | S_IWUSR, show_engine3_mode, store_engine3_mode); -static DEVICE_ATTR(engine1_leds, S_IRUGO | S_IWUGO, +static DEVICE_ATTR(engine1_leds, S_IRUGO | S_IWUSR, show_engine1_leds, store_engine1_leds); -static DEVICE_ATTR(engine2_leds, S_IRUGO | S_IWUGO, +static DEVICE_ATTR(engine2_leds, S_IRUGO | S_IWUSR, show_engine2_leds, store_engine2_leds); -static DEVICE_ATTR(engine3_leds, S_IRUGO | S_IWUGO, +static DEVICE_ATTR(engine3_leds, S_IRUGO | S_IWUSR, show_engine3_leds, store_engine3_leds); -static DEVICE_ATTR(engine1_load, S_IWUGO, NULL, store_engine1_load); -static DEVICE_ATTR(engine2_load, S_IWUGO, NULL, store_engine2_load); -static DEVICE_ATTR(engine3_load, S_IWUGO, NULL, store_engine3_load); +static DEVICE_ATTR(engine1_load, S_IWUSR, NULL, store_engine1_load); +static DEVICE_ATTR(engine2_load, S_IWUSR, NULL, store_engine2_load); +static DEVICE_ATTR(engine3_load, S_IWUSR, NULL, store_engine3_load); static DEVICE_ATTR(selftest, S_IRUGO, lp5523_selftest, NULL); static struct attribute *lp5523_attributes[] = { diff --git a/drivers/leds/leds-mc13783.c b/drivers/leds/leds-mc13783.c index f369e56d6547..126ca7955f6e 100644 --- a/drivers/leds/leds-mc13783.c +++ b/drivers/leds/leds-mc13783.c @@ -22,6 +22,7 @@ #include <linux/leds.h> #include <linux/workqueue.h> #include <linux/mfd/mc13783.h> +#include <linux/mfd/core.h> #include <linux/slab.h> struct mc13783_led { @@ -183,7 +184,7 @@ static int __devinit mc13783_led_setup(struct mc13783_led *led, int max_current) static int __devinit mc13783_leds_prepare(struct platform_device *pdev) { - struct mc13783_leds_platform_data *pdata = dev_get_platdata(&pdev->dev); + struct mc13783_leds_platform_data *pdata = mfd_get_data(pdev); struct mc13783 *dev = dev_get_drvdata(pdev->dev.parent); int ret = 0; int reg = 0; @@ -264,7 +265,7 @@ out: static int __devinit mc13783_led_probe(struct platform_device *pdev) { - struct mc13783_leds_platform_data *pdata = dev_get_platdata(&pdev->dev); + struct mc13783_leds_platform_data *pdata = mfd_get_data(pdev); struct mc13783_led_platform_data *led_cur; struct mc13783_led *led, *led_dat; int ret, i; @@ -351,7 +352,7 @@ err_free: static int __devexit mc13783_led_remove(struct platform_device *pdev) { - struct mc13783_leds_platform_data *pdata = dev_get_platdata(&pdev->dev); + struct mc13783_leds_platform_data *pdata = mfd_get_data(pdev); struct mc13783_led *led = platform_get_drvdata(pdev); struct mc13783 *dev = dev_get_drvdata(pdev->dev.parent); int i; diff --git a/drivers/leds/leds-net5501.c b/drivers/leds/leds-net5501.c index 1739557a9038..7e764b8365e6 100644 --- a/drivers/leds/leds-net5501.c +++ b/drivers/leds/leds-net5501.c @@ -19,7 +19,7 @@ #include <asm/geode.h> -static struct gpio_led net5501_leds[] = { +static const struct gpio_led net5501_leds[] = { { .name = "error", .gpio = 6, diff --git a/drivers/leds/leds-pca9532.c b/drivers/leds/leds-pca9532.c index afac338d5025..5bf63af09ddf 100644 --- a/drivers/leds/leds-pca9532.c +++ b/drivers/leds/leds-pca9532.c @@ -58,7 +58,7 @@ static struct i2c_driver pca9532_driver = { .id_table = pca9532_id, }; -/* We have two pwm/blinkers, but 16 possible leds to drive. Additionaly, +/* We have two pwm/blinkers, but 16 possible leds to drive. Additionally, * the clever Thecus people are using one pwm to drive the beeper. So, * as a compromise we average one pwm to the values requested by all * leds that are not ON/OFF. diff --git a/drivers/leds/leds-regulator.c b/drivers/leds/leds-regulator.c index 3790816643be..8497f56f8e46 100644 --- a/drivers/leds/leds-regulator.c +++ b/drivers/leds/leds-regulator.c @@ -178,6 +178,10 @@ static int __devinit regulator_led_probe(struct platform_device *pdev) led->cdev.flags |= LED_CORE_SUSPENDRESUME; led->vcc = vcc; + /* to handle correctly an already enabled regulator */ + if (regulator_is_enabled(led->vcc)) + led->enabled = 1; + mutex_init(&led->mutex); INIT_WORK(&led->work, led_work); diff --git a/drivers/leds/leds-wm8350.c b/drivers/leds/leds-wm8350.c index a04523273282..f14edd82cb00 100644 --- a/drivers/leds/leds-wm8350.c +++ b/drivers/leds/leds-wm8350.c @@ -215,13 +215,13 @@ static int wm8350_led_probe(struct platform_device *pdev) isink = regulator_get(&pdev->dev, "led_isink"); if (IS_ERR(isink)) { - printk(KERN_ERR "%s: cant get ISINK\n", __func__); + printk(KERN_ERR "%s: can't get ISINK\n", __func__); return PTR_ERR(isink); } dcdc = regulator_get(&pdev->dev, "led_vcc"); if (IS_ERR(dcdc)) { - printk(KERN_ERR "%s: cant get DCDC\n", __func__); + printk(KERN_ERR "%s: can't get DCDC\n", __func__); ret = PTR_ERR(dcdc); goto err_isink; } |