gpio: pca953x: suppress interrupts warning when not applicable

Don't warn about missing interrupts support when the parent interrupt is
not defined. Enabling interrupts support would not make it work anyway.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index c55ad15..023a32c 100644 (file)
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -708,7 +708,7 @@ static int pca953x_irq_setup(struct pca953x_chip *chip,
 {
        struct i2c_client *client = chip->client;
 
-       if (irq_base != -1 && (chip->driver_data & PCA_INT))
+       if (client->irq && irq_base != -1 && (chip->driver_data & PCA_INT))
                dev_warn(&client->dev, "interrupt support not compiled in\n");
 
        return 0;