Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/parport/Kconfig b/drivers/parport/Kconfig
index 855f389..d92185a 100644
--- a/drivers/parport/Kconfig
+++ b/drivers/parport/Kconfig
@@ -142,7 +142,7 @@
 	  the AX88796 network controller chip. This code is also available
 	  as a module (say M), called parport_ax88796.
 
-	  The driver is not dependant on the AX88796 network driver, and
+	  The driver is not dependent on the AX88796 network driver, and
 	  should not interfere with the networking functions of the chip.
 
 config PARPORT_1284
diff --git a/drivers/parport/ieee1284.c b/drivers/parport/ieee1284.c
index 8901ecf..f9fd4b3 100644
--- a/drivers/parport/ieee1284.c
+++ b/drivers/parport/ieee1284.c
@@ -355,7 +355,7 @@
 		return 0;
 	}
 
-	/* Go to compability forward idle mode */
+	/* Go to compatibility forward idle mode */
 	if (port->ieee1284.mode != IEEE1284_MODE_COMPAT)
 		parport_ieee1284_terminate (port);
 
diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
index 8d62fb7..a3755ff 100644
--- a/drivers/parport/parport_pc.c
+++ b/drivers/parport/parport_pc.c
@@ -1488,7 +1488,7 @@
 
 	outb(key, io);
 	outb(key, io);     /* Write Magic Sequence to EFER, extended
-			      funtion enable register */
+			      function enable register */
 	outb(0x20, io);    /* Write EFIR, extended function index register */
 	devid = inb(io + 1);  /* Read EFDR, extended function data register */
 	outb(0x21, io);
@@ -1527,7 +1527,7 @@
 	x_oldid = inb(io + 2);
 
 	outb(key, io);     /* Write Magic Byte to EFER, extended
-			      funtion enable register */
+			      function enable register */
 	outb(0x20, io + 2);  /* Write EFIR, extended function index register */
 	devid = inb(io + 2);  /* Read EFDR, extended function data register */
 	outb(0x21, io + 1);
@@ -1569,7 +1569,7 @@
 
 	outb(key, io);
 	outb(key, io);     /* Write Magic Sequence to EFER, extended
-			      funtion enable register */
+			      function enable register */
 	outb(0x0d, io);    /* Write EFIR, extended function index register */
 	oldid = inb(io + 1);  /* Read EFDR, extended function data register */
 	outb(0x0e, io);