pwm: Drop unused member "pwm" from struct pwm_device

This member is only assigned to and never read. So drop it.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

drivers/pwm/core.c

@@ -265,7 +265,6 @@ int __pwmchip_add(struct pwm_chip *chip, struct module *owner)
 		pwm = &chip->pwms[i];
 
 		pwm->chip = chip;
-		pwm->pwm = chip->base + i;
 		pwm->hwpwm = i;
 	}
 

include/linux/pwm.h

@@ -79,7 +79,6 @@ struct pwm_device {
 	const char *label;
 	unsigned long flags;
 	unsigned int hwpwm;
-	unsigned int pwm;
 	struct pwm_chip *chip;
 
 	struct pwm_args args;