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Commit a6d511e5 authored by NeilBrown's avatar NeilBrown Committed by Linus Torvalds
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leds: add driver for TCA6507 LED controller 



TI's TCA6507 is the LED driver in the GTA04 Openmoko motherboard.  The
driver provides full support for brightness levels and hardware blinking.

This driver can drive each of 7 outputs as an LED or a GPIO output,
and provides hardware-assist blinking.

[akpm@linux-foundation.org: fix __mod_i2c_device_table alias]
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: default avatarNeilBrown <neilb@suse.de>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent b96a573f

drivers/leds/Kconfig

+8 −0
Original line number Diff line number Diff line
@@ -388,6 +388,14 @@ config LEDS_RENESAS_TPU 
	  pin function. The latter to support brightness control.

	  Brightness control is supported but hardware blinking is not.



config LEDS_TCA6507

	tristate "LED Support for TCA6507 I2C chip"

	depends on LEDS_CLASS && I2C

	help

	  This option enables support for LEDs connected to TC6507

	  LED driver chips accessed via the I2C bus.

	  Driver support brightness control and hardware-assisted blinking.



config LEDS_TRIGGERS

	bool "LED Trigger support"

	depends on LEDS_CLASS

drivers/leds/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o 
obj-$(CONFIG_LEDS_LP3944)		+= leds-lp3944.o

obj-$(CONFIG_LEDS_LP5521)		+= leds-lp5521.o

obj-$(CONFIG_LEDS_LP5523)		+= leds-lp5523.o

obj-$(CONFIG_LEDS_TCA6507)		+= leds-tca6507.o

obj-$(CONFIG_LEDS_CLEVO_MAIL)		+= leds-clevo-mail.o

obj-$(CONFIG_LEDS_HP6XX)		+= leds-hp6xx.o

obj-$(CONFIG_LEDS_FSG)			+= leds-fsg.o

drivers/leds/leds-tca6507.c

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+779 −0

File added.

Preview size limit exceeded, changes collapsed.

include/linux/leds-tca6507.h

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+34 −0
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/*

 * TCA6507 LED chip driver.

 *

 * Copyright (C) 2011 Neil Brown <neil@brown.name>

 *

 * 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.

 *

 * This program is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA

 * 02110-1301 USA

 */



#ifndef __LINUX_TCA6507_H

#define __LINUX_TCA6507_H

#include <linux/leds.h>



struct tca6507_platform_data {

	struct led_platform_data leds;

#ifdef CONFIG_GPIOLIB

	int gpio_base;

	void (*setup)(unsigned gpio_base, unsigned ngpio);

#endif

};



#define	TCA6507_MAKE_GPIO 1

#endif /* __LINUX_TCA6507_H*/