X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Facpi%2Fprocessor_idle.c;h=4976e5db2b3f3436026d7a5c341f1abec92f300c;hb=3d63430a26b91fe3daee0dd933f899c225e66daa;hp=789d4947ed31db9929c83c931435b067821b8f59;hpb=44473d991332053eb3fea1e08f8a6ee2c6fb409c;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 789d4947ed3..4976e5db2b3 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -847,6 +847,7 @@ static int acpi_processor_get_power_info_default(struct acpi_processor *pr)
 		/* all processors need to support C1 */
 		pr->power.states[ACPI_STATE_C1].type = ACPI_STATE_C1;
 		pr->power.states[ACPI_STATE_C1].valid = 1;
+		pr->power.states[ACPI_STATE_C1].entry_method = ACPI_CSTATE_HALT;
 	}
 	/* the C0 state only exists as a filler in our array */
 	pr->power.states[ACPI_STATE_C0].valid = 1;
@@ -959,6 +960,9 @@ static int acpi_processor_get_power_info_cst(struct acpi_processor *pr)
 				 cx.address);
 		}
 
+		if (cx.type == ACPI_STATE_C1) {
+			cx.valid = 1;
+		}
 
 		obj = &(element->package.elements[2]);
 		if (obj->type != ACPI_TYPE_INTEGER)
@@ -1295,6 +1299,8 @@ int acpi_processor_cst_has_changed(struct acpi_processor *pr)
 {
 	int result = 0;
 
+	if (boot_option_idle_override)
+		return 0;
 
 	if (!pr)
 		return -EINVAL;
@@ -1333,7 +1339,7 @@ static void smp_callback(void *v)
 static int acpi_processor_latency_notify(struct notifier_block *b,
 		unsigned long l, void *v)
 {
-	smp_call_function(smp_callback, NULL, 0, 1);
+	smp_call_function(smp_callback, NULL, 1);
 	return NOTIFY_OK;
 }
 
@@ -1663,6 +1669,7 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
 		return -EINVAL;
 	}
 
+	dev->cpu = pr->id;
 	for (i = 0; i < CPUIDLE_STATE_MAX; i++) {
 		dev->states[i].name[0] = '\0';
 		dev->states[i].desc[0] = '\0';
@@ -1732,7 +1739,10 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
 
 int acpi_processor_cst_has_changed(struct acpi_processor *pr)
 {
-	int ret;
+	int ret = 0;
+
+	if (boot_option_idle_override)
+		return 0;
 
 	if (!pr)
 		return -EINVAL;
@@ -1747,8 +1757,10 @@ int acpi_processor_cst_has_changed(struct acpi_processor *pr)
 	cpuidle_pause_and_lock();
 	cpuidle_disable_device(&pr->power.dev);
 	acpi_processor_get_power_info(pr);
-	acpi_processor_setup_cpuidle(pr);
-	ret = cpuidle_enable_device(&pr->power.dev);
+	if (pr->flags.power) {
+		acpi_processor_setup_cpuidle(pr);
+		ret = cpuidle_enable_device(&pr->power.dev);
+	}
 	cpuidle_resume_and_unlock();
 
 	return ret;
@@ -1764,6 +1776,8 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
 	struct proc_dir_entry *entry = NULL;
 	unsigned int i;
 
+	if (boot_option_idle_override)
+		return 0;
 
 	if (!first_run) {
 		dmi_check_system(processor_power_dmi_table);
@@ -1799,10 +1813,9 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
 	 * Note that we use previously set idle handler will be used on
 	 * platforms that only support C1.
 	 */
-	if ((pr->flags.power) && (!boot_option_idle_override)) {
+	if (pr->flags.power) {
 #ifdef CONFIG_CPU_IDLE
 		acpi_processor_setup_cpuidle(pr);
-		pr->power.dev.cpu = pr->id;
 		if (cpuidle_register_device(&pr->power.dev))
 			return -EIO;
 #endif
@@ -1835,9 +1848,11 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
 int acpi_processor_power_exit(struct acpi_processor *pr,
 			      struct acpi_device *device)
 {
+	if (boot_option_idle_override)
+		return 0;
+
 #ifdef CONFIG_CPU_IDLE
-	if ((pr->flags.power) && (!boot_option_idle_override))
-		cpuidle_unregister_device(&pr->power.dev);
+	cpuidle_unregister_device(&pr->power.dev);
 #endif
 	pr->flags.power_setup_done = 0;