| Message ID | 1694066433-8677-4-git-send-email-quic_krichai@quicinc.com |
|---|---|
| State | Accepted |
| Commit | a0242c81bb759ef03184be8eddcc7d5bdf36cc16 |
| Headers | show |
| Series | PCI: qcom: Add support for OPP | expand |
On 07-09-23, 11:30, Krishna chaitanya chundru wrote: $Subject should have OPP instead of opp. Past history of framework can be seen for this. > During initialization of some drivers, need to vote for max level. > > Adding dev_pm_opp_find_level_floor() for searching a lesser match or > operating on OPP in the order of decreasing level. > > Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com> > --- > drivers/opp/core.c | 25 +++++++++++++++++++++++++ > include/linux/pm_opp.h | 9 +++++++++ > 2 files changed, 34 insertions(+) > > diff --git a/drivers/opp/core.c b/drivers/opp/core.c > index 919cc53..6d4d226 100644 > --- a/drivers/opp/core.c > +++ b/drivers/opp/core.c > @@ -814,6 +814,31 @@ struct dev_pm_opp *dev_pm_opp_find_level_ceil(struct device *dev, > EXPORT_SYMBOL_GPL(dev_pm_opp_find_level_ceil); > > /** > + * dev_pm_opp_find_level_floor() - Search for a rounded floor freq freq ? > + * @dev: device for which we do this operation > + * @level: Start level > + * > + * Search for the matching floor *available* OPP from a starting level > + * for a device. > + * > + * Return: matching *opp and refreshes *level accordingly, else returns > + * ERR_PTR in case of error and should be handled using IS_ERR. Error return > + * values can be: > + * EINVAL: for bad pointer > + * ERANGE: no match found for search > + * ENODEV: if device not found in list of registered devices > + * > + * The callers are required to call dev_pm_opp_put() for the returned OPP after > + * use. > + */ > +struct dev_pm_opp *dev_pm_opp_find_level_floor(struct device *dev, > + unsigned long *level) > +{ > + return _find_key_floor(dev, level, 0, true, _read_level, NULL); > +} > +EXPORT_SYMBOL_GPL(dev_pm_opp_find_level_floor); > + > +/** > * dev_pm_opp_find_bw_ceil() - Search for a rounded ceil bandwidth > * @dev: device for which we do this operation > * @bw: start bandwidth > diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h > index 91f87d7..baea92f 100644 > --- a/include/linux/pm_opp.h > +++ b/include/linux/pm_opp.h > @@ -144,6 +144,9 @@ struct dev_pm_opp *dev_pm_opp_find_level_exact(struct device *dev, > struct dev_pm_opp *dev_pm_opp_find_level_ceil(struct device *dev, > unsigned int *level); > > +struct dev_pm_opp *dev_pm_opp_find_level_floor(struct device *dev, > + unsigned long *level); > + > struct dev_pm_opp *dev_pm_opp_find_bw_ceil(struct device *dev, > unsigned int *bw, int index); > > @@ -314,6 +317,12 @@ static inline struct dev_pm_opp *dev_pm_opp_find_bw_ceil(struct device *dev, > return ERR_PTR(-EOPNOTSUPP); > } > > +static inline struct dev_pm_opp *dev_pm_opp_find_level_floor(struct device *dev, Why add between two bw related functions ? > + unsigned long *level) > +{ > + return ERR_PTR(-EOPNOTSUPP); > +} > + > static inline struct dev_pm_opp *dev_pm_opp_find_bw_floor(struct device *dev, > unsigned int *bw, int index) > { Fixed all this and applied. Thanks.
On 9/27/2023 12:44 PM, Viresh Kumar wrote: > On 07-09-23, 11:30, Krishna chaitanya chundru wrote: > > $Subject should have OPP instead of opp. Past history of framework can be seen > for this. > >> During initialization of some drivers, need to vote for max level. >> >> Adding dev_pm_opp_find_level_floor() for searching a lesser match or >> operating on OPP in the order of decreasing level. >> >> Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com> >> --- >> drivers/opp/core.c | 25 +++++++++++++++++++++++++ >> include/linux/pm_opp.h | 9 +++++++++ >> 2 files changed, 34 insertions(+) >> >> diff --git a/drivers/opp/core.c b/drivers/opp/core.c >> index 919cc53..6d4d226 100644 >> --- a/drivers/opp/core.c >> +++ b/drivers/opp/core.c >> @@ -814,6 +814,31 @@ struct dev_pm_opp *dev_pm_opp_find_level_ceil(struct device *dev, >> EXPORT_SYMBOL_GPL(dev_pm_opp_find_level_ceil); >> >> /** >> + * dev_pm_opp_find_level_floor() - Search for a rounded floor freq > freq ? > >> + * @dev: device for which we do this operation >> + * @level: Start level >> + * >> + * Search for the matching floor *available* OPP from a starting level >> + * for a device. >> + * >> + * Return: matching *opp and refreshes *level accordingly, else returns >> + * ERR_PTR in case of error and should be handled using IS_ERR. Error return >> + * values can be: >> + * EINVAL: for bad pointer >> + * ERANGE: no match found for search >> + * ENODEV: if device not found in list of registered devices >> + * >> + * The callers are required to call dev_pm_opp_put() for the returned OPP after >> + * use. >> + */ >> +struct dev_pm_opp *dev_pm_opp_find_level_floor(struct device *dev, >> + unsigned long *level) >> +{ >> + return _find_key_floor(dev, level, 0, true, _read_level, NULL); >> +} >> +EXPORT_SYMBOL_GPL(dev_pm_opp_find_level_floor); >> + >> +/** >> * dev_pm_opp_find_bw_ceil() - Search for a rounded ceil bandwidth >> * @dev: device for which we do this operation >> * @bw: start bandwidth >> diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h >> index 91f87d7..baea92f 100644 >> --- a/include/linux/pm_opp.h >> +++ b/include/linux/pm_opp.h >> @@ -144,6 +144,9 @@ struct dev_pm_opp *dev_pm_opp_find_level_exact(struct device *dev, >> struct dev_pm_opp *dev_pm_opp_find_level_ceil(struct device *dev, >> unsigned int *level); >> >> +struct dev_pm_opp *dev_pm_opp_find_level_floor(struct device *dev, >> + unsigned long *level); >> + >> struct dev_pm_opp *dev_pm_opp_find_bw_ceil(struct device *dev, >> unsigned int *bw, int index); >> >> @@ -314,6 +317,12 @@ static inline struct dev_pm_opp *dev_pm_opp_find_bw_ceil(struct device *dev, >> return ERR_PTR(-EOPNOTSUPP); >> } >> >> +static inline struct dev_pm_opp *dev_pm_opp_find_level_floor(struct device *dev, > Why add between two bw related functions ? > >> + unsigned long *level) >> +{ >> + return ERR_PTR(-EOPNOTSUPP); >> +} >> + >> static inline struct dev_pm_opp *dev_pm_opp_find_bw_floor(struct device *dev, >> unsigned int *bw, int index) >> { > Fixed all this and applied. Thanks. > I didn't notice this before, thanks for fixing and applying . - KC
diff --git a/drivers/opp/core.c b/drivers/opp/core.c index 919cc53..6d4d226 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -814,6 +814,31 @@ struct dev_pm_opp *dev_pm_opp_find_level_ceil(struct device *dev, EXPORT_SYMBOL_GPL(dev_pm_opp_find_level_ceil); /** + * dev_pm_opp_find_level_floor() - Search for a rounded floor freq + * @dev: device for which we do this operation + * @level: Start level + * + * Search for the matching floor *available* OPP from a starting level + * for a device. + * + * Return: matching *opp and refreshes *level accordingly, else returns + * ERR_PTR in case of error and should be handled using IS_ERR. Error return + * values can be: + * EINVAL: for bad pointer + * ERANGE: no match found for search + * ENODEV: if device not found in list of registered devices + * + * The callers are required to call dev_pm_opp_put() for the returned OPP after + * use. + */ +struct dev_pm_opp *dev_pm_opp_find_level_floor(struct device *dev, + unsigned long *level) +{ + return _find_key_floor(dev, level, 0, true, _read_level, NULL); +} +EXPORT_SYMBOL_GPL(dev_pm_opp_find_level_floor); + +/** * dev_pm_opp_find_bw_ceil() - Search for a rounded ceil bandwidth * @dev: device for which we do this operation * @bw: start bandwidth diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index 91f87d7..baea92f 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -144,6 +144,9 @@ struct dev_pm_opp *dev_pm_opp_find_level_exact(struct device *dev, struct dev_pm_opp *dev_pm_opp_find_level_ceil(struct device *dev, unsigned int *level); +struct dev_pm_opp *dev_pm_opp_find_level_floor(struct device *dev, + unsigned long *level); + struct dev_pm_opp *dev_pm_opp_find_bw_ceil(struct device *dev, unsigned int *bw, int index); @@ -314,6 +317,12 @@ static inline struct dev_pm_opp *dev_pm_opp_find_bw_ceil(struct device *dev, return ERR_PTR(-EOPNOTSUPP); } +static inline struct dev_pm_opp *dev_pm_opp_find_level_floor(struct device *dev, + unsigned long *level) +{ + return ERR_PTR(-EOPNOTSUPP); +} + static inline struct dev_pm_opp *dev_pm_opp_find_bw_floor(struct device *dev, unsigned int *bw, int index) {
During initialization of some drivers, need to vote for max level. Adding dev_pm_opp_find_level_floor() for searching a lesser match or operating on OPP in the order of decreasing level. Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com> --- drivers/opp/core.c | 25 +++++++++++++++++++++++++ include/linux/pm_opp.h | 9 +++++++++ 2 files changed, 34 insertions(+)