From f39e578172f30d3bdd4533465c7ec00db738eb9d Mon Sep 17 00:00:00 2001
From: Will Newton <will.newton@gmail.com>
Date: Thu, 1 May 2008 04:35:10 -0700
Subject: 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>
---
drivers/gpio/pca953x.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
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[] = {
{ "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)
--
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