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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2011-05-24 20:13:29 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-25 11:39:51 -0400
commit4440673a95e63ad888a41db596edaa0c55d3a332 (patch)
treec548419177ab7b2db08bdb5fae3f62b39649d77b /include/linux/leds.h
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 'include/linux/leds.h')
-rw-r--r--include/linux/leds.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 61e0340a4b77..5884def15a24 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -207,5 +207,7 @@ struct gpio_led_platform_data {
207 unsigned long *delay_off); 207 unsigned long *delay_off);
208}; 208};
209 209
210struct platform_device *gpio_led_register_device(
211 int id, const struct gpio_led_platform_data *pdata);
210 212
211#endif /* __LINUX_LEDS_H_INCLUDED */ 213#endif /* __LINUX_LEDS_H_INCLUDED */