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authorWill Newton <will.newton@gmail.com>2008-05-01 07:35:10 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-05-01 11:04:01 -0400
commitf39e578172f30d3bdd4533465c7ec00db738eb9d (patch)
tree6a3e4928f88ec2ed8300bebc85a506c6641b6e7a /drivers/gpio
parent868eb7a8539d3e8c494209be2b1f4084a274dfef (diff)
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>
Diffstat (limited to 'drivers/gpio')
-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 5a99e81d2784..93f916720b13 100644
--- a/drivers/gpio/pca953x.c
+++ b/drivers/gpio/pca953x.c
@@ -30,6 +30,8 @@ static const struct i2c_device_id pca953x_id[] = {
30 { "pca9537", 4, }, 30 { "pca9537", 4, },
31 { "pca9538", 8, }, 31 { "pca9538", 8, },
32 { "pca9539", 16, }, 32 { "pca9539", 16, },
33 { "pca9555", 16, },
34 { "pca9557", 8, },
33 /* REVISIT several pca955x parts should work here too */ 35 /* REVISIT several pca955x parts should work here too */
34 { } 36 { }
35}; 37};
@@ -193,7 +195,7 @@ static int __devinit pca953x_probe(struct i2c_client *client,
193{ 195{
194 struct pca953x_platform_data *pdata; 196 struct pca953x_platform_data *pdata;
195 struct pca953x_chip *chip; 197 struct pca953x_chip *chip;
196 int ret, i; 198 int ret;
197 199
198 pdata = client->dev.platform_data; 200 pdata = client->dev.platform_data;
199 if (pdata == NULL) 201 if (pdata == NULL)