[Patch 2/2] gpio-pca953x: fix gpio_base and add verbosity

[Hartmut Knaack <knaack.h@gmx.de>]

Inspired by the gpio-pcf857x driver, this patch will output information
about the instantiated gpio-chip, including gpio start and end, chip
type and if irq is used.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
-------------------------------------------------------------
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index ae479fd..4bdb88e 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -683,6 +683,12 @@ static int __devinit pca953x_probe(struct
i2c_client *client,
     if (ret)
         goto out_failed;
 
+    dev_info(&client->dev, "gpios %d..%d added on a %s%s\n",
+         chip->gpio_chip.base,
+         chip->gpio_chip.base + chip->gpio_chip.ngpio - 1,
+         client->name,
+         client->irq ? " (irq ignored)" : "");
+   
     ret = gpiochip_add(&chip->gpio_chip);
     if (ret)
         goto out_failed_irq;