greybus: pwm: use the bundle struct device instead of the connector

We are removing struct device from the gb_connection structure in the
near future.  The gb_bundle structure's struct device should be used as
a replacement.

This patch moves the pwm driver to use the bundle pointer instead of the
connection pointer.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Reviewed-by: Alex Elder <elder@linaro.org>

drivers/staging/greybus/pwm.c

@@ -196,7 +196,7 @@ static int gb_pwm_connection_init(struct gb_connection *connection)
 
 	pwm = &pwmc->chip;
 
-	pwm->dev = &connection->dev;
+	pwm->dev = &connection->bundle->dev;
 	pwm->ops = &gb_pwm_ops;
 	pwm->base = -1;			/* Allocate base dynamically */
 	pwm->npwm = pwmc->pwm_max + 1;
@@ -204,7 +204,8 @@ static int gb_pwm_connection_init(struct gb_connection *connection)
 
 	ret = pwmchip_add(pwm);
 	if (ret) {
-		dev_err(&connection->dev, "failed to register PWM: %d\n", ret);
+		dev_err(&connection->bundle->dev,
+			"failed to register PWM: %d\n", ret);
 		goto out_err;
 	}