kernel/linux.git/drivers/opp/opp.h, branch v6.19.11

OPP: Remove _get_opp_table_kref()

2025-04-24T10:35:33+00:00

Use dev_pm_opp_get_opp_table_ref() directly instead. No intentional functional impact. Signed-off-by: Viresh Kumar

PM / OPP: Add reference counting helpers for Rust implementation

2025-01-20T03:35:51+00:00

To ensure that resources such as OPP tables or OPP nodes are not freed while in use by the Rust implementation, it is necessary to increment their reference count from Rust code. This commit introduces a new helper function, dev_pm_opp_get_opp_table_ref(), to increment the reference count of an OPP table and declares the existing helper dev_pm_opp_get() in pm_opp.h. Signed-off-by: Viresh Kumar

Merge tag 'pm-6.13-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2024-11-27T22:40:33+00:00

Pull morepower management updates from Rafael Wysocki: "These update the OPP (Operating Performance Points) DT bindings for ti-cpu (Dhruva Gole) and remove unused declarations from the OPP header file (Zhang Zekun)" * tag 'pm-6.13-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: dt-bindings: opp: operating-points-v2-ti-cpu: Describe opp-supported-hw OPP: Remove unused declarations in header file

OPP: Drop redundant *_opp_attach|detach_genpd()

2024-10-10T12:24:30+00:00

All users of *_opp_attach|detach_genpd(), have been converted to use dev|devm_pm_domain_attach|detach_list(), hence let's drop it along with its corresponding exported functions. Acked-by: Viresh Kumar Signed-off-by: Ulf Hansson Link: https://lore.kernel.org/r/20241002122232.194245-12-ulf.hansson@linaro.org

OPP: Rework _set_required_devs() to manage a single device per call

2024-10-10T12:11:41+00:00

At this point there are no consumer drivers that makes use of _set_required_devs(), hence it should be straightforward to rework the code to enable it to better integrate with the PM domain attach procedure. During attach, one device at the time is being hooked up to its corresponding PM domain. Therefore, let's update the _set_required_devs() to align to this behaviour, allowing callers to fill out one required_dev per call. Subsequent changes starts making use of this. Signed-off-by: Ulf Hansson Acked-by: Viresh Kumar Link: https://lore.kernel.org/r/20241002122232.194245-4-ulf.hansson@linaro.org

OPP: Remove unused declarations in header file

2024-10-01T04:54:08+00:00

The definition of _update_set_required_opps() has been removed since commit e37440e7e2c2 ("OPP: Call dev_pm_opp_set_opp() for required OPPs"). Besides, the definition of _put_opp_list_kref() has been removed since commit 03758d60265c ("opp: Replace list_kref with a local counter"). Let's remove the empty declarations in header file. Signed-off-by: Zhang Zekun Signed-off-by: Viresh Kumar

OPP: Rename 'rate_clk_single'

2024-01-05T10:25:41+00:00

The field's name isn't clear enough. Rename it. Signed-off-by: Viresh Kumar

OPP: Move dev_pm_opp_icc_bw to internal opp.h

2024-01-03T10:51:42+00:00

It isn't used by any driver or API, privatize it. Signed-off-by: Viresh Kumar

OPP: Call dev_pm_opp_set_opp() for required OPPs

2023-11-28T10:33:19+00:00

Configuring the required OPP was never properly implemented, we just took an exception for genpds and configured them directly, while leaving out all other required OPP types. Now that a standard call to dev_pm_opp_set_opp() takes care of configuring the opp->level too, the special handling for genpds can be avoided by simply calling dev_pm_opp_set_opp() for the required OPPs, which shall eventually configure the corresponding level for genpds. This also makes it possible for us to configure other type of required OPPs (no concrete users yet though), via the same path. This is how other frameworks take care of parent nodes, like clock, regulators, etc, where we recursively call the same helper. In order to call dev_pm_opp_set_opp() for the virtual genpd devices, they must share the OPP table of the genpd. Call _add_opp_dev() for them to get that done. This commit also extends the struct dev_pm_opp_config to pass required devices, for non-genpd cases, which can be used to call dev_pm_opp_set_opp() for the non-genpd required devices. Reviewed-by: Ulf Hansson Tested-by: Stephan Gerhold Signed-off-by: Viresh Kumar

OPP: Remove genpd_virt_dev_lock

2023-10-17T05:41:28+00:00

All the config operations for OPP tables share common code paths now and none of the other ones have such protection in place. Either all should have it or none. The understanding here is that user won't clear the OPP configs while still using them and so such a case won't happen. We can always come back and use a wider lock for all resource types if required. Also fix the error on failing to allocate memory. Signed-off-by: Viresh Kumar Reviewed-by: Ulf Hansson