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authorEric Miao <eric.miao@marvell.com>2008-07-25 01:46:14 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-25 10:53:30 -0700
commitbbcd6d543de335bf81e96477f46a60a8bf51039c (patch)
tree86d592bfa308407ce357184ff9494e7d36939c6b /drivers/gpio/Kconfig
parent7444a72effa632fcd8edc566f880d96fe213c73b (diff)
gpio: max732x driver
This adds a driver supporting a family of I2C port expanders from Maxim, which includes the MAX7319 and MAX7320-7327 chips. [dbrownell@users.sourceforge.net: minor fixes] Signed-off-by: Jack Ren <jack.ren@marvell.com> Signed-off-by: Eric Miao <eric.miao@marvell.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/gpio/Kconfig')
-rw-r--r--drivers/gpio/Kconfig19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 5a355f82916..dbd42d6c93a 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -67,6 +67,25 @@ config GPIO_SYSFS
comment "I2C GPIO expanders:"
+config GPIO_MAX732X
+ tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
+ depends on I2C
+ help
+ Say yes here to support the MAX7319, MAX7320-7327 series of I2C
+ Port Expanders. Each IO port on these chips has a fixed role of
+ Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
+ Input and Output (designed by 'P'). The combinations are listed
+ below:
+
+ 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
+ max7322 (4I4O), max7323 (4P4O)
+
+ 16 bits: max7324 (8I8O), max7325 (8P8O),
+ max7326 (4I12O), max7327 (4P12O)
+
+ Board setup code must specify the model to use, and the start
+ number for these GPIOs.
+
config GPIO_PCA953X
tristate "PCA953x, PCA955x, and MAX7310 I/O ports"
depends on I2C