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| author | Joachim Eastwood <manabian@gmail.com> | 2011-05-24 17:13:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-25 08:39:50 -0700 |
| commit | 3c1ab50d0a31b27bb4e55168f4901dd91e6e5ea4 (patch) | |
| tree | a9ec955ad64bda0ff64f5654c1b16eeb79e0d895 /drivers/leds/Kconfig | |
| parent | fff26f8141145e01eae8f4d6e642ac8a0d500158 (diff) | |
| download | linux-3c1ab50d0a31b27bb4e55168f4901dd91e6e5ea4.tar.gz linux-3c1ab50d0a31b27bb4e55168f4901dd91e6e5ea4.tar.xz linux-3c1ab50d0a31b27bb4e55168f4901dd91e6e5ea4.zip | |
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 <joachim.eastwood@jotron.com>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Jan Weitzel <j.weitzel@phytec.de>
Cc: Juergen Kilb <j.kilb@phytec.de>
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 | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 9bec8699b8a3..09de8dac8a73 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -162,6 +162,16 @@ config LEDS_PCA9532 LED controller. It is generally only useful as a platform driver +config LEDS_PCA9532_GPIO + bool "Enable GPIO support for PCA9532" + depends on LEDS_PCA9532 + depends on GPIOLIB + help + Allow unused pins on PCA9532 to be used as gpio. + + To use a pin as gpio pca9532_type in pca9532_platform data needs to + set to PCA9532_TYPE_GPIO. + config LEDS_GPIO tristate "LED Support for GPIO connected LEDs" depends on LEDS_CLASS |