gpio: pca953x: Add support for PCA9556

PCA9556 is the software-compatible predecessor to the PCA9557, so add it
to the supported I2C device ID table.

Signed-off-by: Nate Case <[email protected]>
Cc: David Brownell <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c
index e9d6d5bdd300e86d5a4f86a71c50e80c1184a3a3..cdb6574d25a698a26fd7c428037ae836cc4929dd 100644 (file)
--- a/drivers/gpio/pca953x.c
+++ b/drivers/gpio/pca953x.c
@@ -36,6 +36,7 @@ static const struct i2c_device_id pca953x_id[] = {
        { "pca9539", 16, },
        { "pca9554", 8, },
        { "pca9555", 16, },
+       { "pca9556", 8, },
        { "pca9557", 8, },
 
        { "max7310", 8, },