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PM / QOS: Pass request type to dev_pm_qos_read_value()

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In order to allow dev_pm_qos_read_value() to read values for different
QoS requests, pass request type as a parameter to these routines.

For now, it only supports resume-latency request type but will be
extended to frequency limit (min/max) constraints later on.

Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Viresh Kumar 2019-07-04 13:06:19 +05:30 • committed by Rafael J. Wysocki
parent 8262331eaa
commit 2a79ea5ec5
4 changed files with 27 additions and 10 deletions
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16
include/linux/pm_qos.h
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@ -140,7 +140,7 @@ s32 pm_qos_read_value(struct pm_qos_constraints *c);
enum pm_qos_flags_status __dev_pm_qos_flags(struct device *dev, s32 mask);
enum pm_qos_flags_status dev_pm_qos_flags(struct device *dev, s32 mask);
s32 __dev_pm_qos_resume_latency(struct device *dev);
s32 dev_pm_qos_read_value(struct device *dev);
s32 dev_pm_qos_read_value(struct device *dev, enum dev_pm_qos_req_type type);
int dev_pm_qos_add_request(struct device *dev, struct dev_pm_qos_request *req,
enum dev_pm_qos_req_type type, s32 value);
int dev_pm_qos_update_request(struct dev_pm_qos_request *req, s32 new_value);
@ -191,8 +191,18 @@ static inline enum pm_qos_flags_status dev_pm_qos_flags(struct device *dev,
{ return PM_QOS_FLAGS_UNDEFINED; }
static inline s32 __dev_pm_qos_resume_latency(struct device *dev)
{ return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT; }
static inline s32 dev_pm_qos_read_value(struct device *dev)
{ return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT; }
static inline s32 dev_pm_qos_read_value(struct device *dev,
enum dev_pm_qos_req_type type)
{
switch (type) {
case DEV_PM_QOS_RESUME_LATENCY:
return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT;
default:
WARN_ON(1);
return 0;
}
}
static inline int dev_pm_qos_add_request(struct device *dev,
struct dev_pm_qos_request *req,
enum dev_pm_qos_req_type type,