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Release 4.10 drivers/leds/leds-da903x.c

Directory: drivers/leds
/*
 * LEDs driver for Dialog Semiconductor DA9030/DA9034
 *
 * 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/platform_device.h>
#include <linux/leds.h>
#include <linux/mfd/da903x.h>
#include <linux/slab.h>


#define DA9030_LED1_CONTROL	0x20

#define DA9030_LED2_CONTROL	0x21

#define DA9030_LED3_CONTROL	0x22

#define DA9030_LED4_CONTROL	0x23

#define DA9030_LEDPC_CONTROL	0x24

#define DA9030_MISC_CONTROL_A	0x26	
/* Vibrator Control */


#define DA9034_LED1_CONTROL	0x35

#define DA9034_LED2_CONTROL	0x36

#define DA9034_VIBRA		0x40


struct da903x_led {
	
struct led_classdev	cdev;
	
struct device		*master;
	
int			id;
	
int			flags;
};


#define DA9030_LED_OFFSET(id)	((id) - DA9030_ID_LED_1)

#define DA9034_LED_OFFSET(id)	((id) - DA9034_ID_LED_1)


static int da903x_led_set(struct led_classdev *led_cdev, enum led_brightness value) { struct da903x_led *led = container_of(led_cdev, struct da903x_led, cdev); uint8_t val; int offset, ret = -EINVAL; switch (led->id) { case DA9030_ID_LED_1: case DA9030_ID_LED_2: case DA9030_ID_LED_3: case DA9030_ID_LED_4: case DA9030_ID_LED_PC: offset = DA9030_LED_OFFSET(led->id); val = led->flags & ~0x87; val |= value ? 0x80 : 0; /* EN bit */ val |= (0x7 - (value >> 5)) & 0x7; /* PWM<2:0> */ ret = da903x_write(led->master, DA9030_LED1_CONTROL + offset, val); break; case DA9030_ID_VIBRA: val = led->flags & ~0x80; val |= value ? 0x80 : 0; /* EN bit */ ret = da903x_write(led->master, DA9030_MISC_CONTROL_A, val); break; case DA9034_ID_LED_1: case DA9034_ID_LED_2: offset = DA9034_LED_OFFSET(led->id); val = (value * 0x5f / LED_FULL) & 0x7f; val |= (led->flags & DA9034_LED_RAMP) ? 0x80 : 0; ret = da903x_write(led->master, DA9034_LED1_CONTROL + offset, val); break; case DA9034_ID_VIBRA: val = value & 0xfe; ret = da903x_write(led->master, DA9034_VIBRA, val); break; } return ret; }

Contributors

PersonTokensPropCommitsCommitProp
mike rapoportmike rapoport20585.42%133.33%
andrew lunnandrew lunn3112.92%133.33%
jonathan cameronjonathan cameron41.67%133.33%
Total240100.00%3100.00%


static int da903x_led_probe(struct platform_device *pdev) { struct led_info *pdata = dev_get_platdata(&pdev->dev); struct da903x_led *led; int id, ret; if (pdata == NULL) return 0; id = pdev->id; if (!((id >= DA9030_ID_LED_1 && id <= DA9030_ID_VIBRA) || (id >= DA9034_ID_LED_1 && id <= DA9034_ID_VIBRA))) { dev_err(&pdev->dev, "invalid LED ID (%d) specified\n", id); return -EINVAL; } led = devm_kzalloc(&pdev->dev, sizeof(struct da903x_led), GFP_KERNEL); if (!led) return -ENOMEM; led->cdev.name = pdata->name; led->cdev.default_trigger = pdata->default_trigger; led->cdev.brightness_set_blocking = da903x_led_set; led->cdev.brightness = LED_OFF; led->id = id; led->flags = pdata->flags; led->master = pdev->dev.parent; ret = devm_led_classdev_register(led->master, &led->cdev); if (ret) { dev_err(&pdev->dev, "failed to register LED %d\n", id); return ret; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
mike rapoportmike rapoport20192.63%116.67%
bryan wubryan wu94.15%116.67%
jingoo hanjingoo han41.84%116.67%
andrew lunnandrew lunn10.46%116.67%
amitoj kaur chawlaamitoj kaur chawla10.46%116.67%
xiubo lixiubo li10.46%116.67%
Total217100.00%6100.00%

static struct platform_driver da903x_led_driver = { .driver = { .name = "da903x-led", }, .probe = da903x_led_probe, }; module_platform_driver(da903x_led_driver); MODULE_DESCRIPTION("LEDs driver for Dialog Semiconductor DA9030/DA9034"); MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>"); MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:da903x-led");

Overall Contributors

PersonTokensPropCommitsCommitProp
mike rapoportmike rapoport53989.98%110.00%
andrew lunnandrew lunn325.34%110.00%
bryan wubryan wu91.50%110.00%
sachin kamatsachin kamat50.83%110.00%
jonathan cameronjonathan cameron40.67%110.00%
jingoo hanjingoo han40.67%110.00%
tejun heotejun heo30.50%110.00%
axel linaxel lin10.17%110.00%
xiubo lixiubo li10.17%110.00%
amitoj kaur chawlaamitoj kaur chawla10.17%110.00%
Total599100.00%10100.00%
Directory: drivers/leds
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