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authorStephen Rothwell <sfr@canb.auug.org.au>2010-01-13 10:48:10 +1100
committerStephen Rothwell <sfr@canb.auug.org.au>2010-01-13 10:48:10 +1100
commit381a028ba0d5966caa3f1bd561c2da42b9c88098 (patch)
tree3911d1b2ea56f1dc243eb8370120f74afae9290a /kernel
parent284e43b0109d4db4dd48b04cab702735d64a3c8f (diff)
parent3c8164d84c1180852271f71e2bb3ccf0938e8283 (diff)
Merge remote branch 'msm/for-next'
Diffstat (limited to 'kernel')
-rw-r--r--kernel/pm_qos_params.c32
1 files changed, 25 insertions, 7 deletions
diff --git a/kernel/pm_qos_params.c b/kernel/pm_qos_params.c
index 3db49b9ca374..8576f40f8470 100644
--- a/kernel/pm_qos_params.c
+++ b/kernel/pm_qos_params.c
@@ -102,12 +102,24 @@ static struct pm_qos_object network_throughput_pm_qos = {
.comparitor = max_compare
};
+static BLOCKING_NOTIFIER_HEAD(system_bus_freq_notifier);
+static struct pm_qos_object system_bus_freq_pm_qos = {
+ .requirements =
+ {LIST_HEAD_INIT(system_bus_freq_pm_qos.requirements.list)},
+ .notifiers = &system_bus_freq_notifier,
+ .name = "system_bus_freq",
+ .default_value = 0,
+ .target_value = ATOMIC_INIT(0),
+ .comparitor = max_compare
+};
+
-static struct pm_qos_object *pm_qos_array[] = {
- &null_pm_qos,
- &cpu_dma_pm_qos,
- &network_lat_pm_qos,
- &network_throughput_pm_qos
+static struct pm_qos_object *pm_qos_array[PM_QOS_NUM_CLASSES] = {
+ [PM_QOS_RESERVED] = &null_pm_qos,
+ [PM_QOS_CPU_DMA_LATENCY] = &cpu_dma_pm_qos,
+ [PM_QOS_NETWORK_LATENCY] = &network_lat_pm_qos,
+ [PM_QOS_NETWORK_THROUGHPUT] = &network_throughput_pm_qos,
+ [PM_QOS_SYSTEM_BUS_FREQ] = &system_bus_freq_pm_qos,
};
static DEFINE_SPINLOCK(pm_qos_lock);
@@ -313,7 +325,7 @@ EXPORT_SYMBOL_GPL(pm_qos_remove_requirement);
* will register the notifier into a notification chain that gets called
* upon changes to the pm_qos_class target value.
*/
- int pm_qos_add_notifier(int pm_qos_class, struct notifier_block *notifier)
+int pm_qos_add_notifier(int pm_qos_class, struct notifier_block *notifier)
{
int retval;
@@ -409,9 +421,15 @@ static int __init pm_qos_power_init(void)
return ret;
}
ret = register_pm_qos_misc(&network_throughput_pm_qos);
- if (ret < 0)
+ if (ret < 0) {
printk(KERN_ERR
"pm_qos_param: network_throughput setup failed\n");
+ return ret;
+ }
+ ret = register_pm_qos_misc(&system_bus_freq_pm_qos);
+ if (ret < 0)
+ printk(KERN_ERR
+ "pm_qos_param: system_bus_freq setup failed\n");
return ret;
}