diff options
| author | David Brownell <david-b@pacbell.net> | 2008-07-04 09:59:37 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-04 10:40:06 -0700 |
| commit | 7059d4b08eba2ad046395a04b02e34ca27304d8f (patch) | |
| tree | 47fbdbec332d2fea3b24f984f08237f92cdfcd2d /drivers | |
| parent | da9eac8990dc614ab4756f2a3d84870b675f1f1e (diff) | |
| download | linux-7059d4b08eba2ad046395a04b02e34ca27304d8f.tar.bz2 | |
gpio: pca953x (i2c) handles max7310 too
The pca953x driver can handle another 8-bit I/O expander, the max7310.
This patch adds that chip to the list of supported IDs in that driver, and
expands the Kconfig helptext accordingly.
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')
| -rw-r--r-- | drivers/gpio/Kconfig | 14 | ||||
| -rw-r--r-- | drivers/gpio/pca953x.c | 2 |
2 files changed, 11 insertions, 5 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index bbd28342e771..008c38ba774f 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -28,12 +28,18 @@ config DEBUG_GPIO comment "I2C GPIO expanders:" config GPIO_PCA953X - tristate "PCA953x I/O ports" + tristate "PCA953x, PCA955x, and MAX7310 I/O ports" depends on I2C help - Say yes here to support the PCA9534 (8-bit), PCA9535 (16-bit), - PCA9536 (4-bit), PCA9537 (4-bit), PCA9538 (8-bit), and PCA9539 - (16-bit) I/O ports. These parts are made by NXP and TI. + Say yes here to provide access to several register-oriented + SMBus I/O expanders, made mostly by NXP or TI. Compatible + models include: + + 4 bits: pca9536, pca9537 + + 8 bits: max7310, pca9534, pca9538, pca9554, pca9557 + + 16 bits: pca9535, pca9539, pca9555 This driver can also be built as a module. If so, the module will be called pca953x. diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c index 7e40e8a55edf..a380730b61ab 100644 --- a/drivers/gpio/pca953x.c +++ b/drivers/gpio/pca953x.c @@ -33,7 +33,7 @@ static const struct i2c_device_id pca953x_id[] = { { "pca9554", 8, }, { "pca9555", 16, }, { "pca9557", 8, }, - /* REVISIT several pca955x parts should work here too */ + { "max7310", 8, }, { } }; MODULE_DEVICE_TABLE(i2c, pca953x_id); |