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| author | Chanwoo Choi <cw00.choi@samsung.com> | 2014-07-11 10:03:01 +0900 |
|---|---|---|
| committer | Chanho Park <chanho61.park@samsung.com> | 2014-11-18 12:00:16 +0900 |
| commit | ed02d6b42f26ef44545f6d6aa41a1c5bdaa8efca (patch) | |
| tree | 9aaf38263067f0984f42a22bfa602402676b6401 /kernel/power | |
| parent | f471a72bd63710b7491a7695fc4913b23b0520b0 (diff) | |
| download | linux-3.10-ed02d6b42f26ef44545f6d6aa41a1c5bdaa8efca.tar.gz linux-3.10-ed02d6b42f26ef44545f6d6aa41a1c5bdaa8efca.tar.bz2 linux-3.10-ed02d6b42f26ef44545f6d6aa41a1c5bdaa8efca.zip | |
pm_qos: Add PM_QOS_CPU_FREQUENCY pm_qos to guarantee required CPU frequency
This patch add PM_QOS_CPU_FREQUENCY to quarantee required CPU frequency.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Diffstat (limited to 'kernel/power')
| -rw-r--r-- | kernel/power/qos.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/kernel/power/qos.c b/kernel/power/qos.c index 789e69f0ec9..457d0f27911 100644 --- a/kernel/power/qos.c +++ b/kernel/power/qos.c @@ -113,12 +113,26 @@ static struct pm_qos_object bus_frequency_pm_qos = { .name = "bus_frequency", }; +static BLOCKING_NOTIFIER_HEAD(cpu_frequency_notifier); +static struct pm_qos_constraints cpu_frequency_constraints = { + .list = PLIST_HEAD_INIT(cpu_frequency_constraints.list), + .target_value = PM_QOS_CPU_FREQUENCY_DEFAULT_VALUE, + .default_value = PM_QOS_CPU_FREQUENCY_DEFAULT_VALUE, + .type = PM_QOS_MAX, + .notifiers = &cpu_frequency_notifier, +}; +static struct pm_qos_object cpu_frequency_pm_qos = { + .constraints = &cpu_frequency_constraints, + .name = "cpu_frequency", +}; + static struct pm_qos_object *pm_qos_array[] = { &null_pm_qos, &cpu_dma_pm_qos, &network_lat_pm_qos, &network_throughput_pm_qos, &bus_frequency_pm_qos, + &cpu_frequency_pm_qos, }; static ssize_t pm_qos_power_write(struct file *filp, const char __user *buf, |