pwm: Use the DT macro directly when parsing PWM DT flags

Don't redefine a PWM_SPEC_POLARITY macro with a value identical to
PWM_POLARITY_INVERTED, use the PWM DT macro directly.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

drivers/pwm/core.c

@@ -30,10 +30,9 @@
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
 
-#define MAX_PWMS 1024
+#include <dt-bindings/pwm/pwm.h>
 
-/* flags in the third cell of the DT PWM specifier */
-#define PWM_SPEC_POLARITY	(1 << 0)
+#define MAX_PWMS 1024
 
 static DEFINE_MUTEX(pwm_lookup_lock);
 static LIST_HEAD(pwm_lookup_list);
@@ -149,7 +148,7 @@ of_pwm_xlate_with_flags(struct pwm_chip *pc, const struct of_phandle_args *args)
 
 	pwm_set_period(pwm, args->args[1]);
 
-	if (args->args[2] & PWM_SPEC_POLARITY)
+	if (args->args[2] & PWM_POLARITY_INVERTED)
 		pwm_set_polarity(pwm, PWM_POLARITY_INVERSED);
 	else
 		pwm_set_polarity(pwm, PWM_POLARITY_NORMAL);