[PATCH] therm_adt746x: Quiet fan speed change messages

Only output the messages about fan speed changes with a verbose=1 module
param.
Signed-off-by: NFabio M. Di Nitto <fabbione@ubuntu.com>
Signed-off-by: NBen Collins <bcollins@ubuntu.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/macintosh/therm_adt746x.c

@@ -52,6 +52,7 @@ static char *sensor_location[3] = {NULL, NULL, NULL};
 
 static int limit_adjust = 0;
 static int fan_speed = -1;
+static int verbose = 0;
 
 MODULE_AUTHOR("Colin Leroy <colin@colino.net>");
 MODULE_DESCRIPTION("Driver for ADT746x thermostat in iBook G4 and "
@@ -66,6 +67,10 @@ module_param(fan_speed, int, 0644);
 MODULE_PARM_DESC(fan_speed,"Specify starting fan speed (0-255) "
 		 "(default 64)");
 
+module_param(verbose, bool, 0);
+MODULE_PARM_DESC(verbose,"Verbose log operations "
+		 "(default 0)");
+
 struct thermostat {
 	struct i2c_client	clt;
 	u8			temps[3];
@@ -212,12 +217,14 @@ static void write_fan_speed(struct thermostat *th, int speed, int fan)
 		return;
 	
 	if (th->last_speed[fan] != speed) {
+		if (verbose) {
 			if (speed == -1)
 				printk(KERN_DEBUG "adt746x: Setting speed to automatic "
 					"for %s fan.\n", sensor_location[fan+1]);
 			else
 				printk(KERN_DEBUG "adt746x: Setting speed to %d "
 					"for %s fan.\n", speed, sensor_location[fan+1]);
+		}
 	} else
 		return;
 	
@@ -298,7 +305,8 @@ static void update_fans_speed (struct thermostat *th)
 			if (new_speed > 255)
 				new_speed = 255;
 
-			printk(KERN_DEBUG "adt746x: setting fans speed to %d "
+			if (verbose)
+				printk(KERN_DEBUG "adt746x: Setting fans speed to %d "
 						 "(limit exceeded by %d on %s) \n",
 						new_speed, var,
 						sensor_location[fan_number+1]);
@@ -309,6 +317,7 @@ static void update_fans_speed (struct thermostat *th)
 			 * so cold (lastvar >= -1) */
 			if (i == 2 && lastvar < -1) {
 				if (th->last_speed[fan_number] != 0)
+					if (verbose)
 						printk(KERN_DEBUG "adt746x: Stopping "
 							"fans.\n");
 				write_both_fan_speed(th, 0);