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| author |   Viresh Kumar <viresh.kumar@linaro.org> | 2017-10-11 12:54:14 +0530 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-10-14 00:54:40 +0200 |
| commit | 009acd196fc860045bf7b2c3f5812f0f5efb2782 (patch) | |
| tree | 76f26d4863ee59701532f74d80b1807e6b9ebd0f /drivers/opp/opp.h | |
| parent | Merge branch 'pm-domains' into pm-opp (diff) | |
| download | linux-dev-009acd196fc860045bf7b2c3f5812f0f5efb2782.tar.xz linux-dev-009acd196fc860045bf7b2c3f5812f0f5efb2782.zip | |
PM / OPP: Support updating performance state of device's power domain
The genpd framework now provides an API to request device's power
domain to update its performance state. Use that interface from the
OPP core for devices whose power domains support performance states.
Note that this commit doesn't add any mechanism by which performance
states are made available to the OPP core. That would be done by a
later commit.
Note that the current implementation is restricted to the case where
the device doesn't have separate regulators for itself. We shouldn't
over engineer the code before we have real use case for them. We can
always come back and add more code to support such cases later on.
Tested-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/opp/opp.h')
| -rw-r--r-- | drivers/opp/opp.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/opp/opp.h b/drivers/opp/opp.h index 166eef990599..e8f767ab5814 100644 --- a/drivers/opp/opp.h +++ b/drivers/opp/opp.h @@ -58,6 +58,7 @@ extern struct list_head opp_tables; * @dynamic: not-created from static DT entries. * @turbo: true if turbo (boost) OPP * @suspend: true if suspend OPP + * @pstate: Device's power domain's performance state. * @rate: Frequency in hertz * @supplies: Power supplies voltage/current values * @clock_latency_ns: Latency (in nanoseconds) of switching to this OPP's @@ -76,6 +77,7 @@ struct dev_pm_opp { bool dynamic; bool turbo; bool suspend; + unsigned int pstate; unsigned long rate; struct dev_pm_opp_supply *supplies; @@ -135,6 +137,7 @@ enum opp_table_access { * @clk: Device's clock handle * @regulators: Supply regulators * @regulator_count: Number of power supply regulators + * @genpd_performance_state: Device's power domain support performance state. * @set_opp: Platform specific set_opp callback * @set_opp_data: Data to be passed to set_opp callback * @dentry: debugfs dentry pointer of the real device directory (not links). @@ -170,6 +173,7 @@ struct opp_table { struct clk *clk; struct regulator **regulators; unsigned int regulator_count; + bool genpd_performance_state; int (*set_opp)(struct dev_pm_set_opp_data *data); struct dev_pm_set_opp_data *set_opp_data; |