linux/drivers/opp, branch v6.13

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

2024-11-27T22:40:33Z

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

Merge tag 'opp-updates-6.13' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/vireshk/pm

2024-11-19T20:37:56Z

Merge OPP (Operating Performance Points) Updates for 6.13 from Viresh Kumar: "- Describe opp-supported-hw property for ti-cpu (Dhruva Gole). - Remove unused declarations in header file (Zhang Zekun)." * tag 'opp-updates-6.13' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/vireshk/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()

2024-10-10T12:24:30Z

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: Drop redundant code in _link_required_opps()

2024-10-10T12:15:54Z

Due to that the required-devs for the required OPPs are now always being assigned, we no longer need the special treatment in _link_required_opps() for the single PM domain case. Let's therefore drop it. Acked-by: Viresh Kumar Signed-off-by: Ulf Hansson Link: https://lore.kernel.org/r/20241002122232.194245-8-ulf.hansson@linaro.org

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

2024-10-10T12:11:41Z

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: fix error code in dev_pm_opp_set_config()

2024-10-01T23:27:50Z

This is an error path so set the error code. Smatch complains about the current code: drivers/opp/core.c:2660 dev_pm_opp_set_config() error: uninitialized symbol 'ret'. Fixes: e37440e7e2c2 ("OPP: Call dev_pm_opp_set_opp() for required OPPs") Signed-off-by: Dan Carpenter Acked-by: Viresh Kumar Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/3f3660af-4ea0-4a89-b3b7-58de7b16d7a5@stanley.mountain Signed-off-by: Ulf Hansson

OPP: Remove unused declarations in header file

2024-10-01T04:54:08Z

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

Merge branches 'pm-sleep', 'pm-opp' and 'pm-tools'

2024-09-11T17:02:23Z

Merge updates related to system sleep, operating performance points (OPP) updates, and PM tooling updates for 6.12-rc1: - Remove unused stub for saveable_highmem_page() and remove deprecated macros from power management documentation (Andy Shevchenko). - Use ysfs_emit() and sysfs_emit_at() in "show" functions in the PM sysfs interface (Xueqin Luo). - Update the maintainers information for the operating-points-v2-ti-cpu DT binding (Dhruva Gole). - Drop unnecessary of_match_ptr() from ti-opp-supply (Rob Herring). - Update directory handling and installation process in the pm-graph Makefile and add .gitignore to ignore sleepgraph.py artifacts to pm-graph (Amit Vadhavana, Yo-Jung Lin). - Make cpupower display residency value in idle-info (Aboorva Devarajan). - Add missing powercap_set_enabled() stub function to cpupower (John B. Wyatt IV). - Add SWIG support to cpupower (John B. Wyatt IV). * pm-sleep: PM: hibernate: Remove unused stub for saveable_highmem_page() Documentation: PM: Discourage use of deprecated macros PM: sleep: Use sysfs_emit() and sysfs_emit_at() in "show" functions PM: hibernate: Use sysfs_emit() and sysfs_emit_at() in "show" functions * pm-opp: dt-bindings: opp: operating-points-v2-ti-cpu: Update maintainers opp: ti: Drop unnecessary of_match_ptr() * pm-tools: pm:cpupower: Add error warning when SWIG is not installed MAINTAINERS: Add Maintainers for SWIG Python bindings pm:cpupower: Include test_raw_pylibcpupower.py pm:cpupower: Add SWIG bindings files for libcpupower pm:cpupower: Add missing powercap_set_enabled() stub function pm-graph: Update directory handling and installation process in Makefile pm-graph: Make git ignore sleepgraph.py artifacts tools/cpupower: display residency value in idle-info

opp: ti: Drop unnecessary of_match_ptr()

2024-09-04T15:13:41Z

of_match_ptr() is not necessary as the driver is always enabled for DT. Signed-off-by: Rob Herring (Arm) Signed-off-by: Viresh Kumar

OPP: Fix support for required OPPs for multiple PM domains

2024-08-23T09:57:44Z

It has turned out that having _set_required_opps() to recursively call dev_pm_opp_set_opp() to set the required OPPs, doesn't really work as well as we expected. More precisely, at each recursive call to dev_pm_opp_set_opp() we are changing an OPP for a required_dev that belongs to a required-OPP table. The problem with this, is that we may have several devices sharing the same required-OPP table, which leads to an incorrect behaviour in regards to aggregating the per device votes. To fix the problem for a required-OPP table belonging to a PM domain, which is the only existing usecase for now, let's simply replace the call to dev_pm_opp_set_opp() in _set_required_opps() by a call to _set_opp_level(). Moving forward we may potentially need to add support for other types of required-OPP tables. In this case, the aggregation needs to be thought of. Fixes: e37440e7e2c2 ("OPP: Call dev_pm_opp_set_opp() for required OPPs") Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson Acked-by: Viresh Kumar Link: https://lore.kernel.org/r/20240822224547.385095-2-ulf.hansson@linaro.org