From 3c1ab50d0a31b27bb4e55168f4901dd91e6e5ea4 Mon Sep 17 00:00:00 2001 From: Joachim Eastwood Date: Tue, 24 May 2011 17:13:23 -0700 Subject: drivers/leds/leds-pca9532.c: add gpio capability Allow unused leds on pca9532 to be used as gpio. The board I am working on now has no less than 6 pca9532 chips. One chips is used for only leds, one has 14 leds and 2 gpio and the rest of the chips are gpio only. There is also one board in mainline which could use this capabilty; arch/arm/mach-iop32x/n2100.c 232 { .type = PCA9532_TYPE_NONE }, /* power OFF gpio */ 233 { .type = PCA9532_TYPE_NONE }, /* reset gpio */ This patch defines a new pin type, PCA9532_TYPE_GPIO, and registers a gpiochip if any pin has this type set. The gpio will registers all chip pins but will filter on gpio_request. [randy.dunlap@oracle.com: fix build when GPIOLIB is not enabled] Signed-off-by: Joachim Eastwood Reviewed-by: Wolfram Sang Reviewed-by: H Hartley Sweeten Cc: Richard Purdie Cc: Grant Likely Signed-off-by: Randy Dunlap Cc: Jan Weitzel Cc: Juergen Kilb Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/leds-pca9532.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux/leds-pca9532.h') diff --git a/include/linux/leds-pca9532.h b/include/linux/leds-pca9532.h index f158eb1149aa..b8d6fffed4d8 100644 --- a/include/linux/leds-pca9532.h +++ b/include/linux/leds-pca9532.h @@ -25,7 +25,7 @@ enum pca9532_state { }; enum pca9532_type { PCA9532_TYPE_NONE, PCA9532_TYPE_LED, - PCA9532_TYPE_N2100_BEEP }; + PCA9532_TYPE_N2100_BEEP, PCA9532_TYPE_GPIO }; struct pca9532_led { u8 id; @@ -41,6 +41,7 @@ struct pca9532_platform_data { struct pca9532_led leds[16]; u8 pwm[2]; u8 psc[2]; + int gpio_base; }; #endif /* __LINUX_PCA9532_H */ -- cgit v1.2.3