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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2011-05-24 17:13:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-25 08:39:51 -0700
commit4440673a95e63ad888a41db596edaa0c55d3a332 (patch)
treec548419177ab7b2db08bdb5fae3f62b39649d77b /drivers/leds/Kconfig
parent9b2da53f7627304cd4030cb4883908bfb1bce998 (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/Kconfig7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index a4a77734ab6..1d027b475b2 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"