diff options
Diffstat (limited to 'drivers/gpio/Kconfig')
-rw-r--r-- | drivers/gpio/Kconfig | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 5a355f829167..dbd42d6c93a7 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig | |||
@@ -67,6 +67,25 @@ config GPIO_SYSFS | |||
67 | 67 | ||
68 | comment "I2C GPIO expanders:" | 68 | comment "I2C GPIO expanders:" |
69 | 69 | ||
70 | config GPIO_MAX732X | ||
71 | tristate "MAX7319, MAX7320-7327 I2C Port Expanders" | ||
72 | depends on I2C | ||
73 | help | ||
74 | Say yes here to support the MAX7319, MAX7320-7327 series of I2C | ||
75 | Port Expanders. Each IO port on these chips has a fixed role of | ||
76 | Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain | ||
77 | Input and Output (designed by 'P'). The combinations are listed | ||
78 | below: | ||
79 | |||
80 | 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), | ||
81 | max7322 (4I4O), max7323 (4P4O) | ||
82 | |||
83 | 16 bits: max7324 (8I8O), max7325 (8P8O), | ||
84 | max7326 (4I12O), max7327 (4P12O) | ||
85 | |||
86 | Board setup code must specify the model to use, and the start | ||
87 | number for these GPIOs. | ||
88 | |||
70 | config GPIO_PCA953X | 89 | config GPIO_PCA953X |
71 | tristate "PCA953x, PCA955x, and MAX7310 I/O ports" | 90 | tristate "PCA953x, PCA955x, and MAX7310 I/O ports" |
72 | depends on I2C | 91 | depends on I2C |