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Subject[patch 2.6.26-rc8] gpio: pca953x (i2c) handles max7310 too
Date
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>
---
Yes: the max7310 is I2C, the max7310 is SPI.
Almost like they're trying to spread confusion...

drivers/gpio/Kconfig | 14 ++++++++++----
drivers/gpio/pca953x.c | 2 +-
2 files changed, 11 insertions(+), 5 deletions(-)

--- a/drivers/gpio/Kconfig 2008-06-18 19:40:30.000000000 -0700
+++ b/drivers/gpio/Kconfig 2008-06-18 19:48:04.000000000 -0700
@@ -43,12 +43,18 @@ config GPIO_SYSFS
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.
--- a/drivers/gpio/pca953x.c 2008-06-18 19:08:22.000000000 -0700
+++ b/drivers/gpio/pca953x.c 2008-06-18 19:08:30.000000000 -0700
@@ -33,7 +33,7 @@ static const struct i2c_device_id pca953
{ "pca9554", 8, },
{ "pca9555", 16, },
{ "pca9557", 8, },
- /* REVISIT several pca955x parts should work here too */
+ { "max7310", 8, },
{ }
};
MODULE_DEVICE_TABLE(i2c, pca953x_id);

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