Input: atmel_mxt_ts - rename pressure to amplitude to match spec

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Acked-by: Benson Leung <bleung@chromium.org>
Acked-by: Yufeng Shen <miletus@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/touchscreen/atmel_mxt_ts.c

@@ -663,7 +663,7 @@ static void mxt_input_touchevent(struct mxt_data *data,
 	int x;
 	int y;
 	int area;
-	int pressure;
+	int amplitude;
 
 	x = (message->message[1] << 4) | ((message->message[3] >> 4) & 0xf);
 	y = (message->message[2] << 4) | ((message->message[3] & 0xf));
@@ -673,7 +673,7 @@ static void mxt_input_touchevent(struct mxt_data *data,
 		y = y >> 2;
 
 	area = message->message[4];
-	pressure = message->message[5];
+	amplitude = message->message[5];
 
 	dev_dbg(dev,
 		"[%u] %c%c%c%c%c%c%c%c x: %5u y: %5u area: %3u amp: %3u\n",
@@ -686,7 +686,7 @@ static void mxt_input_touchevent(struct mxt_data *data,
 		(status & MXT_AMP) ? 'A' : '.',
 		(status & MXT_SUPPRESS) ? 'S' : '.',
 		(status & MXT_UNGRIP) ? 'U' : '.',
-		x, y, area, pressure);
+		x, y, area, amplitude);
 
 	input_mt_slot(input_dev, id);
 	input_mt_report_slot_state(input_dev, MT_TOOL_FINGER,
@@ -695,7 +695,7 @@ static void mxt_input_touchevent(struct mxt_data *data,
 	if (status & MXT_DETECT) {
 		input_report_abs(input_dev, ABS_MT_POSITION_X, x);
 		input_report_abs(input_dev, ABS_MT_POSITION_Y, y);
-		input_report_abs(input_dev, ABS_MT_PRESSURE, pressure);
+		input_report_abs(input_dev, ABS_MT_PRESSURE, amplitude);
 		input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, area);
 	}
 }