pwm: Reorder header file to get rid of struct pwm_capture forward declaration

There is no cyclic dependency, so by reordering the forward declaration
can be dropped.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

include/linux/pwm.h

@@ -6,7 +6,6 @@
 #include <linux/mutex.h>
 #include <linux/of.h>
 
-struct pwm_capture;
 struct seq_file;
 
 struct pwm_chip;
@@ -251,6 +250,16 @@ pwm_set_relative_duty_cycle(struct pwm_state *state, unsigned int duty_cycle,
 	return 0;
 }
 
+/**
+ * struct pwm_capture - PWM capture data
+ * @period: period of the PWM signal (in nanoseconds)
+ * @duty_cycle: duty cycle of the PWM signal (in nanoseconds)
+ */
+struct pwm_capture {
+	unsigned int period;
+	unsigned int duty_cycle;
+};
+
 /**
  * struct pwm_ops - PWM controller operations
  * @request: optional hook for requesting a PWM
@@ -300,16 +309,6 @@ struct pwm_chip {
 	struct pwm_device *pwms;
 };
 
-/**
- * struct pwm_capture - PWM capture data
- * @period: period of the PWM signal (in nanoseconds)
- * @duty_cycle: duty cycle of the PWM signal (in nanoseconds)
- */
-struct pwm_capture {
-	unsigned int period;
-	unsigned int duty_cycle;
-};
-
 #if IS_ENABLED(CONFIG_PWM)
 /* PWM user APIs */
 struct pwm_device *pwm_request(int pwm_id, const char *label);