gpio/pca953x bugfix: mark as can_sleep

The pca953x driver is an I2C driver so gpio_chip->can_sleep should be set.
This lets upper layers know they should use the gpio_*_cansleep() calls to access values, and may not access them from nonsleeping contexts.

Signed-off-by Arnaud Patard <[email protected]>

Signed-off-by David Brownell <[email protected]>

---
Merge before 2.6.25-final, please. This will for example prevent leds-gpio from issuing blocking I2C calls from timer/irq contexts.

  drivers/gpio/pca953x.c |    1 +
  1 file changed, 1 insertion(+)

--- g26.orig/drivers/gpio/pca953x.c 2008-03-08 11:17:22.000000000 -0800
+++ g26/drivers/gpio/pca953x.c 2008-03-09 13:51:13.000000000 -0700 @@ -184,6 +184,7 @@ static void pca953x_setup_gpio(struct pc

        gc->direction_output = pca953x_gpio_direction_output;
        gc->get = pca953x_gpio_get_value;
        gc->set = pca953x_gpio_set_value;

+ gc->can_sleep = 1;

        gc->base = chip->gpio_start;
        gc->ngpio = gpios;