diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2011-05-24 17:13:29 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-25 08:39:51 -0700 |
| commit | 4440673a95e63ad888a41db596edaa0c55d3a332 (patch) | |
| tree | c548419177ab7b2db08bdb5fae3f62b39649d77b /drivers/leds/Kconfig | |
| parent | 9b2da53f7627304cd4030cb4883908bfb1bce998 (diff) | |
leds: provide helper to register "leds-gpio" devices
This function makes a deep copy of the platform data to allow it to live
in init memory. For a kernel that supports several machines and so
includes the definition for several leds-gpio devices this saves quite
some memory because all but one definition can be free'd after boot.
As the function is used by arch code it must be builtin and so cannot go
into leds-gpio.c.
[akpm@linux-foundation.org: s/CONFIG_LED_REGISTER_GPIO/CONFIG_LEDS_REGISTER_GPIO/]
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Russell King <rmk@arm.linux.org.uk>
Acked-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: H Hartley Sweeten <hartleys@visionengravers.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/leds/Kconfig')
| -rw-r--r-- | drivers/leds/Kconfig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index a4a77734ab6e..1d027b475b22 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -14,6 +14,13 @@ config LEDS_CLASS 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. +config LEDS_GPIO_REGISTER + bool + help + This option provides the function gpio_led_register_device. + As this function is used by arch code it must not be compiled as a + module. + if NEW_LEDS comment "LED drivers" |