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gpio: pca953x (i2c) handles max7310 too

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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>
This commit is contained in:
David Brownell 2008-07-04 09:59:37 -07:00 committed by Linus Torvalds
parent da9eac8990
commit 7059d4b08e
2 changed files with 11 additions and 5 deletions
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14
drivers/gpio/Kconfig
View File

@ -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.

2
drivers/gpio/pca953x.c
View File

@ -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);