kernel/linux.git/Documentation/power, branch v6.12.80

Documentation: PM: Clarify pm_runtime_resume_and_get() return value

2024-12-19T17:13:15+00:00

[ Upstream commit ccb84dc8f4a02e7d30ffd388522996546b4d00e1 ] Update the documentation to match the behaviour of the code. pm_runtime_resume_and_get() always returns 0 on success, even if __pm_runtime_resume() returns 1. Fixes: 2c412337cfe6 ("PM: runtime: Add documentation for pm_runtime_resume_and_get()") Signed-off-by: Paul Barker Link: https://patch.msgid.link/20241203143729.478-1-paul.barker.ct@bp.renesas.com [ rjw: Subject and changelog edits, adjusted new comment formatting ] Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin

Documentation: PM: Discourage use of deprecated macros

2024-09-04T12:37:57+00:00

The Documentation refers to some deprecated macros. Update those parts accordingly. Signed-off-by: Andy Shevchenko Link: https://patch.msgid.link/20240903172520.3568731-1-andriy.shevchenko@linux.intel.com [ rjw: Changelog edit ] Signed-off-by: Rafael J. Wysocki

regulator: core: Add helper for allow HW access to enable/disable regulator

2024-06-26T17:17:05+00:00

Add a helper function that allow regulator consumers to allow low-level HW access, in order to enable/disable regulator in atomic context. The use-case for RZ/G2L SoC is to enable VBUS selection register based on vbus detection that happens in interrupt context. Signed-off-by: Biju Das Link: https://patch.msgid.link/20240616105402.45211-4-biju.das.jz@bp.renesas.com Signed-off-by: Mark Brown

Documentation: PM: Update platform_pci_wakeup_init() reference

2024-03-27T15:22:19+00:00

platform_pci_wakeup_init() was removed by d2e5f0c16ad6 ("ACPI / PCI: Rework the setup and cleanup of device wakeup") but was still mentioned in the documentation. Update the doc to refer to pci_acpi_setup(), which does the equivalent work. Signed-off-by: Bjorn Helgaas Reviewed-by: Dhruva Gole Signed-off-by: Rafael J. Wysocki

Documentation: power: Fix typo in suspend and interrupts doc

2024-03-13T19:51:11+00:00

Typos are bad. Fix them. Signed-off-by: Saravana Kannan Reviewed-by: Dhruva Gole Signed-off-by: Rafael J. Wysocki

Merge branch 'pm-em'

2024-03-11T14:59:51+00:00

Merge Enery Model changes for 6.9-rc1: - Allow the Energy Model to be updated dynamically (Lukasz Luba). * pm-em: (24 commits) PM: EM: Fix nr_states warnings in static checks Documentation: EM: Update with runtime modification design PM: EM: Add em_dev_compute_costs() PM: EM: Remove old table PM: EM: Change debugfs configuration to use runtime EM table data drivers/thermal/devfreq_cooling: Use new Energy Model interface drivers/thermal/cpufreq_cooling: Use new Energy Model interface powercap/dtpm_devfreq: Use new Energy Model interface to get table powercap/dtpm_cpu: Use new Energy Model interface to get table PM: EM: Optimize em_cpu_energy() and remove division PM: EM: Support late CPUs booting and capacity adjustment PM: EM: Add performance field to struct em_perf_state and optimize PM: EM: Add em_perf_state_from_pd() to get performance states table PM: EM: Introduce em_dev_update_perf_domain() for EM updates PM: EM: Add functions for memory allocations for new EM tables PM: EM: Use runtime modified EM for CPUs energy estimation in EAS PM: EM: Introduce runtime modifiable table PM: EM: Split the allocation and initialization of the EM table PM: EM: Check if the get_cost() callback is present in em_compute_costs() PM: EM: Introduce em_compute_costs() ...

Merge branch 'pm-cpufreq'

2024-03-11T14:29:59+00:00

Merge cpufreq changes for 6.9-rc1: - Enable preferred core support in the amd-pstate cpufreq driver (Meng Li). - Fix min_perf assignment in amd_pstate_adjust_perf() and make the min/max limit perf values in amd-pstate always stay within the (highest perf, lowest perf) range (Tor Vic, Meng Li). - Change default transition delay in cpufreq to 2ms (Qais Yousef). - Drop long-unused cpudata::prev_cummulative_iowait from the intel_pstate cpufreq driver (Jiri Slaby). - Allow intel_pstate to assign model-specific values to strings used in the EPP sysfs interface and make it do so on Meteor Lake (Srinivas Pandruvada). - Remove references to 10ms minimum sampling rate from comments in the cpufreq code (Pierre Gondois). - Prevent scaling_cur_freq from exceeding scaling_max_freq when the latter is an inefficient frequency (Shivnandan Kumar). - Honour transition_latency over transition_delay_us in cpufreq (Qais Yousef). - Stop unregistering cpufreq cooling on CPU hot-remove (Viresh Kumar). - General enhancements / cleanups to ARM cpufreq drivers (tianyu2, Nícolas F. R. A. Prado, Erick Archer, Arnd Bergmann, Anastasia Belova). - Update cpufreq-dt-platdev to block/approve devices (Richard Acayan). - Make the SCMI cpufreq driver get a transition delay value from firmware (Pierre Gondois). * pm-cpufreq: (28 commits) cpufreq: scmi: Set transition_delay_us firmware: arm_scmi: Populate fast channel rate_limit firmware: arm_scmi: Populate perf commands rate_limit cpufreq: Don't unregister cpufreq cooling on CPU hotplug cpufreq: Honour transition_latency over transition_delay_us cpufreq: Limit resolving a frequency to policy min/max cpufreq: amd-pstate: adjust min/max limit perf cpufreq: Remove references to 10ms min sampling rate cpufreq: intel_pstate: Update default EPPs for Meteor Lake cpufreq: intel_pstate: Allow model specific EPPs cpufreq: qcom-hw: add CONFIG_COMMON_CLK dependency cpufreq: dt-platdev: block SDM670 in cpufreq-dt-platdev cpufreq: intel_pstate: remove cpudata::prev_cummulative_iowait cpufreq: Change default transition delay to 2ms cpufreq: amd-pstate: Fix min_perf assignment in amd_pstate_adjust_perf() Documentation: PM: amd-pstate: Fix section title underline Documentation: introduce amd-pstate preferrd core mode kernel command line options Documentation: amd-pstate: introduce amd-pstate preferred core cpufreq: amd-pstate: Update amd-pstate preferred core ranking dynamically ACPI: cpufreq: Add highest perf change notification ...

Merge branch 'pm-runtime'

2024-03-11T14:21:00+00:00

Merge changes related to the runtime power management of devices for 6.9-rc1: - Simplify pm_runtime_get_if_active() usage and add a replacement for pm_runtime_put_autosuspend() (Sakari Ailus). - Add a tracepoint for runtime_status changes tracking (Vilas Bhat). - Fix section title markdown in the runtime PM documentation (Yiwei Lin). * pm-runtime: Documentation: PM: Fix runtime_pm.rst markdown syntax PM: runtime: add tracepoint for runtime_status changes PM: runtime: Add pm_runtime_put_autosuspend() replacement PM: runtime: Simplify pm_runtime_get_if_active() usage

Documentation: PM: Fix runtime_pm.rst markdown syntax

2024-02-29T19:16:03+00:00

The '7. Generic subsystem callbacks' should be a section title, but the markdown syntax is not adequate now. Fix it so the chapter can be linked at docs.kernel.org correctly. Signed-off-by: Yiwei Lin [ rjw: Changelog edits ] Signed-off-by: Rafael J. Wysocki

Documentation: PM: Fix PCI hibernation support description

2024-02-12T17:50:42+00:00

According to the context, 'pci_pm_suspend_noirq' is the right word for the changed sentence. Signed-off-by: Yiwei Lin [ rjw: Subject edits ] Signed-off-by: Rafael J. Wysocki