ARM: OMAP3: cpuidle - use omap3_idle_data directly

We are storing the 'omap3_idle_data' in the private data field
of the cpuidle device. As we are using this variable only in this file,
that does not really make sense. Let's use the global variable directly.

As the table is initialized statically, let's remove the initialization at
startup too.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Jean Pihet <j-pihet@ti.com>
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>

arch/arm/mach-omap2/cpuidle34xx.c

@@ -95,8 +95,7 @@ static int __omap3_enter_idle(struct cpuidle_device *dev,
 				struct cpuidle_driver *drv,
 				int index)
 {
-	struct omap3_idle_statedata *cx =
-			cpuidle_get_statedata(&dev->states_usage[index]);
+	struct omap3_idle_statedata *cx = &omap3_idle_data[index];
 	u32 mpu_state = cx->mpu_state, core_state = cx->core_state;
 
 	local_fiq_disable();
@@ -176,9 +175,8 @@ static int next_valid_state(struct cpuidle_device *dev,
 			struct cpuidle_driver *drv,
 				int index)
 {
-	struct cpuidle_state_usage *curr_usage = &dev->states_usage[index];
 	struct cpuidle_state *curr = &drv->states[index];
-	struct omap3_idle_statedata *cx = cpuidle_get_statedata(curr_usage);
+	struct omap3_idle_statedata *cx = &omap3_idle_data[index];
 	u32 mpu_deepest_state = PWRDM_POWER_RET;
 	u32 core_deepest_state = PWRDM_POWER_RET;
 	int next_index = -1;
@@ -218,7 +216,7 @@ static int next_valid_state(struct cpuidle_device *dev,
 		 */
 		idx--;
 		for (; idx >= 0; idx--) {
-			cx = cpuidle_get_statedata(&dev->states_usage[idx]);
+			cx =  &omap3_idle_data[idx];
 			if ((cx->mpu_state >= mpu_deepest_state) &&
 			    (cx->core_state >= core_deepest_state)) {
 				next_index = idx;
@@ -275,7 +273,7 @@ static int omap3_enter_idle_bm(struct cpuidle_device *dev,
 	 * Prevent PER off if CORE is not in retention or off as this
 	 * would disable PER wakeups completely.
 	 */
-	cx = cpuidle_get_statedata(&dev->states_usage[index]);
+	cx = &omap3_idle_data[index];
 	core_next_state = cx->core_state;
 	per_next_state = per_saved_state = pwrdm_read_next_pwrst(per_pd);
 	if ((per_next_state == PWRDM_POWER_OFF) &&
@@ -365,19 +363,6 @@ struct cpuidle_driver omap3_idle_driver = {
 	.safe_state_index = 0,
 };
 
-/* Helper to register the driver_data */
-static inline struct omap3_idle_statedata *_fill_cstate_usage(
-					struct cpuidle_device *dev,
-					int idx)
-{
-	struct omap3_idle_statedata *cx = &omap3_idle_data[idx];
-	struct cpuidle_state_usage *state_usage = &dev->states_usage[idx];
-
-	cpuidle_set_statedata(state_usage, cx);
-
-	return cx;
-}
-
 /**
  * omap3_idle_init - Init routine for OMAP3 idle
  *
@@ -387,52 +372,16 @@ static inline struct omap3_idle_statedata *_fill_cstate_usage(
 int __init omap3_idle_init(void)
 {
 	struct cpuidle_device *dev;
-	struct omap3_idle_statedata *cx;
 
 	mpu_pd = pwrdm_lookup("mpu_pwrdm");
 	core_pd = pwrdm_lookup("core_pwrdm");
 	per_pd = pwrdm_lookup("per_pwrdm");
 	cam_pd = pwrdm_lookup("cam_pwrdm");
 
+	cpuidle_register_driver(&omap3_idle_driver);
 
 	dev = &per_cpu(omap3_idle_dev, smp_processor_id());
-
-	/* C1 . MPU WFI + Core active */
-	cx = _fill_cstate_usage(dev, 0);
-	cx->mpu_state = PWRDM_POWER_ON;
-	cx->core_state = PWRDM_POWER_ON;
-
-	/* C2 . MPU WFI + Core inactive */
-	cx = _fill_cstate_usage(dev, 1);
-	cx->mpu_state = PWRDM_POWER_ON;
-	cx->core_state = PWRDM_POWER_ON;
-
-	/* C3 . MPU CSWR + Core inactive */
-	cx = _fill_cstate_usage(dev, 2);
-	cx->mpu_state = PWRDM_POWER_RET;
-	cx->core_state = PWRDM_POWER_ON;
-
-	/* C4 . MPU OFF + Core inactive */
-	cx = _fill_cstate_usage(dev, 3);
-	cx->mpu_state = PWRDM_POWER_OFF;
-	cx->core_state = PWRDM_POWER_ON;
-
-	/* C5 . MPU RET + Core RET */
-	cx = _fill_cstate_usage(dev, 4);
-	cx->mpu_state = PWRDM_POWER_RET;
-	cx->core_state = PWRDM_POWER_RET;
-
-	/* C6 . MPU OFF + Core RET */
-	cx = _fill_cstate_usage(dev, 5);
-	cx->mpu_state = PWRDM_POWER_OFF;
-	cx->core_state = PWRDM_POWER_RET;
-
-	/* C7 . MPU OFF + Core OFF */
-	cx = _fill_cstate_usage(dev, 6);
-	cx->mpu_state = PWRDM_POWER_OFF;
-	cx->core_state = PWRDM_POWER_OFF;
-
-	cpuidle_register_driver(&omap3_idle_driver);
+	dev->cpu = 0;
 
 	if (cpuidle_register_device(dev)) {
 		printk(KERN_ERR "%s: CPUidle register device failed\n",