i2c-omap: Clean-up i2c-omap

Minor sparse, checkpatch and formatting clean-up. Also update copyrights.
Signed-off-by: NTony Lindgren <tony@atomide.com>

drivers/i2c/busses/i2c-omap.c

@@ -2,13 +2,16 @@
  * TI OMAP I2C master mode driver
  *
  * Copyright (C) 2003 MontaVista Software, Inc.
- * Copyright (C) 2004 Texas Instruments.
- *
- * Updated to work with multiple I2C interfaces on 24xx by
- * Tony Lindgren <tony@atomide.com> and Imre Deak <imre.deak@nokia.com>
  * Copyright (C) 2005 Nokia Corporation
+ * Copyright (C) 2004 - 2007 Texas Instruments.
  *
- * Cleaned up by Juha Yrjölä <juha.yrjola@nokia.com>
+ * Originally written by MontaVista Software, Inc.
+ * Additional contributions by:
+ *	Tony Lindgren <tony@atomide.com>
+ *	Imre Deak <imre.deak@nokia.com>
+ *	Juha Yrjölä <juha.yrjola@solidboot.com>
+ *	Syed Khasim <x0khasim@ti.com>
+ *	Nishant Menon <nm@ti.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -33,8 +36,7 @@
 #include <linux/completion.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
-
-#include <asm/io.h>
+#include <linux/io.h>
 
 /* timeout waiting for the controller to respond */
 #define OMAP_I2C_TIMEOUT (msecs_to_jiffies(1000))
@@ -389,8 +391,10 @@ static int omap_i2c_xfer_msg(struct i2c_adapter *adap,
 		w |= OMAP_I2C_CON_XA;
 	if (!(msg->flags & I2C_M_RD))
 		w |= OMAP_I2C_CON_TRX;
+
 	if (!dev->b_hw && stop)
 		w |= OMAP_I2C_CON_STP;
+
 	omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, w);
 
 	/*
@@ -468,7 +472,8 @@ omap_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
 
 	omap_i2c_unidle(dev);
 
-	if ((r = omap_i2c_wait_for_bb(dev)) < 0)
+	r = omap_i2c_wait_for_bb(dev);
+	if (r < 0)
 		goto out;
 
 	for (i = 0; i < num; i++) {
@@ -561,7 +566,7 @@ omap_i2c_rev1_isr(int this_irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 #else
-#define omap_i2c_rev1_isr		0
+#define omap_i2c_rev1_isr		NULL
 #endif
 
 static irqreturn_t