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authorWill Newton <will.newton@gmail.com>2008-05-01 04:35:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-05-01 08:04:01 -0700
commitf39e578172f30d3bdd4533465c7ec00db738eb9d (patch)
tree6a3e4928f88ec2ed8300bebc85a506c6641b6e7a
parent868eb7a8539d3e8c494209be2b1f4084a274dfef (diff)
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gpio: pca953x: add support for pca9555 I2C I/O expander
Add support for pca9555 I2C I/O expander. As the comment suggests this part is software compatible with the pca9539. Signed-off-by: Will Newton <will.newton@imgtec.com> Cc: "eric miao" <eric.miao@marvell.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/gpio/pca953x.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c
index 5a99e81..93f9167 100644
--- a/drivers/gpio/pca953x.c
+++ b/drivers/gpio/pca953x.c
@@ -30,6 +30,8 @@ static const struct i2c_device_id pca953x_id[] = {
{ "pca9537", 4, },
{ "pca9538", 8, },
{ "pca9539", 16, },
+ { "pca9555", 16, },
+ { "pca9557", 8, },
/* REVISIT several pca955x parts should work here too */
{ }
};
@@ -193,7 +195,7 @@ static int __devinit pca953x_probe(struct i2c_client *client,
{
struct pca953x_platform_data *pdata;
struct pca953x_chip *chip;
- int ret, i;
+ int ret;
pdata = client->dev.platform_data;
if (pdata == NULL)