drivers/pps: aesthetic tweaks to PPS-related content

Collection of aesthetic adjustments to various PPS-related files,
directories and Documentation, some quite minor just for the sake of
consistency, including:

 * Updated example of pps device tree node (courtesy Rodolfo G.)
 * "PPS-API" -> "PPS API"
 * "pps_source_info_s" -> "pps_source_info"
 * "ktimer driver" -> "pps-ktimer driver"
 * "ppstest /dev/pps0" -> "ppstest /dev/pps1" to match example
 * Add missing PPS-related entries to MAINTAINERS file
 * Other trivialities

Link: http://lkml.kernel.org/r/alpine.LFD.2.20.1708261048220.8106@localhost.localdomain
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Acked-by: Rodolfo Giometti <giometti@enneenne.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/pps_kernel.h b/include/linux/pps_kernel.h
index 35ac903..80a980c 100644
--- a/include/linux/pps_kernel.h
+++ b/include/linux/pps_kernel.h
@@ -22,7 +22,6 @@
 #define LINUX_PPS_KERNEL_H
 
 #include <linux/pps.h>
-
 #include <linux/cdev.h>
 #include <linux/device.h>
 #include <linux/time.h>
@@ -35,9 +34,9 @@
 
 /* The specific PPS source info */
 struct pps_source_info {
-	char name[PPS_MAX_NAME_LEN];		/* simbolic name */
+	char name[PPS_MAX_NAME_LEN];		/* symbolic name */
 	char path[PPS_MAX_NAME_LEN];		/* path of connected device */
-	int mode;				/* PPS's allowed mode */
+	int mode;				/* PPS allowed mode */
 
 	void (*echo)(struct pps_device *pps,
 			int event, void *data);	/* PPS echo function */
@@ -57,10 +56,10 @@
 struct pps_device {
 	struct pps_source_info info;		/* PSS source info */
 
-	struct pps_kparams params;		/* PPS's current params */
+	struct pps_kparams params;		/* PPS current params */
 
-	__u32 assert_sequence;			/* PPS' assert event seq # */
-	__u32 clear_sequence;			/* PPS' clear event seq # */
+	__u32 assert_sequence;			/* PPS assert event seq # */
+	__u32 clear_sequence;			/* PPS clear event seq # */
 	struct pps_ktime assert_tu;
 	struct pps_ktime clear_tu;
 	int current_mode;			/* PPS mode at event time */
@@ -69,7 +68,7 @@
 	wait_queue_head_t queue;		/* PPS event queue */
 
 	unsigned int id;			/* PPS source unique ID */
-	void const *lookup_cookie;		/* pps_lookup_dev only */
+	void const *lookup_cookie;		/* For pps_lookup_dev() only */
 	struct cdev cdev;
 	struct device *dev;
 	struct fasync_struct *async_queue;	/* fasync method */
@@ -101,7 +100,7 @@
 extern void pps_unregister_source(struct pps_device *pps);
 extern void pps_event(struct pps_device *pps,
 		struct pps_event_time *ts, int event, void *data);
-/* Look up a pps device by magic cookie */
+/* Look up a pps_device by magic cookie */
 struct pps_device *pps_lookup_dev(void const *cookie);
 
 static inline void timespec_to_pps_ktime(struct pps_ktime *kt,
@@ -132,4 +131,3 @@
 }
 
 #endif /* LINUX_PPS_KERNEL_H */
-