[WATCHDOG] i6300esb.c: Cleanup

#define ESB_LOCK_REG    0x68            /* WDT lock register                 */

/* Memory mapped registers */

#define ESB_TIMER1_REG  BASEADDR + 0x00 /* Timer1 value after each reset     */

#define ESB_TIMER2_REG  BASEADDR + 0x04 /* Timer2 value after each reset     */

#define ESB_GINTSR_REG  BASEADDR + 0x08 /* General Interrupt Status Register */

#define ESB_RELOAD_REG  BASEADDR + 0x0c /* Reload register                   */

#define ESB_TIMER1_REG (BASEADDR + 0x00)/* Timer1 value after each reset     */

#define ESB_TIMER2_REG (BASEADDR + 0x04)/* Timer2 value after each reset     */

#define ESB_GINTSR_REG (BASEADDR + 0x08)/* General Interrupt Status Register */

#define ESB_RELOAD_REG (BASEADDR + 0x0c)/* Reload register                   */

/* Lock register bits */

#define ESB_WDT_FUNC    (0x01 << 2)   /* Watchdog functionality            */

	spin_unlock(&esb_lock);

	/* Returns 0 if the timer was disabled, non-zero otherwise */

	return (val & 0x01);

	return val & 0x01;

}

static void esb_timer_keepalive(void)