I don't think this belongs in cpufreq.
--mark
On Fri, Jan 13, 2012 at 02:59:18PM +0200, Antti P Miettinen wrote:
> Add maximum CPU frequency as PM QoS parameter.
>
> Signed-off-by: Antti P Miettinen <amiettinen@xxxxxxxxxx>
> ---
> include/linux/pm_qos.h | 2 ++
> kernel/power/qos.c | 15 +++++++++++++++
> 2 files changed, 17 insertions(+), 0 deletions(-)
>
> diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
> index 54a0d00..7b8d08b 100644
> --- a/include/linux/pm_qos.h
> +++ b/include/linux/pm_qos.h
> @@ -15,6 +15,7 @@ enum {
> PM_QOS_NETWORK_LATENCY,
> PM_QOS_NETWORK_THROUGHPUT,
> PM_QOS_CPU_FREQ_MIN,
> + PM_QOS_CPU_FREQ_MAX,
>
> /* insert new class ID */
>
> @@ -28,6 +29,7 @@ enum {
> #define PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE 0
> #define PM_QOS_DEV_LAT_DEFAULT_VALUE 0
> #define PM_QOS_CPU_FREQ_MIN_DEFAULT_VALUE 0
> +#define PM_QOS_CPU_FREQ_MAX_DEFAULT_VALUE LONG_MAX
>
> struct pm_qos_request {
> struct plist_node node;
> diff --git a/kernel/power/qos.c b/kernel/power/qos.c
> index 07d761a..04b744b 100644
> --- a/kernel/power/qos.c
> +++ b/kernel/power/qos.c
> @@ -115,12 +115,27 @@ static struct pm_qos_object cpu_freq_min_pm_qos = {
> };
>
>
> +static BLOCKING_NOTIFIER_HEAD(cpu_freq_max_notifier);
> +static struct pm_qos_constraints cpu_freq_max_constraints = {
> + .list = PLIST_HEAD_INIT(cpu_freq_max_constraints.list),
> + .target_value = PM_QOS_CPU_FREQ_MAX_DEFAULT_VALUE,
> + .default_value = PM_QOS_CPU_FREQ_MAX_DEFAULT_VALUE,
> + .type = PM_QOS_MIN,
> + .notifiers = &cpu_freq_max_notifier,
> +};
> +static struct pm_qos_object cpu_freq_max_pm_qos = {
> + .constraints = &cpu_freq_max_constraints,
> + .name = "cpu_freq_max",
> +};
> +
> +
> static struct pm_qos_object *pm_qos_array[] = {
> &null_pm_qos,
> &cpu_dma_pm_qos,
> &network_lat_pm_qos,
> &network_throughput_pm_qos,
> &cpu_freq_min_pm_qos,
> + &cpu_freq_max_pm_qos,
> };
>
> static ssize_t pm_qos_power_write(struct file *filp, const char __user *buf,
> --
> 1.7.4.1
>
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