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linux/drivers/base/power
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Douglas Anderson c7a0fa3a66 PM: runtime: Have devm_pm_runtime_enable() handle pm_runtime_dont_use_autosuspend() 
[ Upstream commit b4060db925 ]

The PM Runtime docs say:

  Drivers in ->remove() callback should undo the runtime PM changes done
  in ->probe(). Usually this means calling pm_runtime_disable(),
  pm_runtime_dont_use_autosuspend() etc.

>From grepping code, it's clear that many people aren't aware of the
need to call pm_runtime_dont_use_autosuspend().

When brainstorming solutions, one idea that came up was to leverage
the new-ish devm_pm_runtime_enable() function. The idea here is that:

 * When the devm action is called we know that the driver is being
   removed. It's the perfect time to undo the use_autosuspend.

 * The code of pm_runtime_dont_use_autosuspend() already handles the
   case of being called when autosuspend wasn't enabled.

Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Stable-dep-of: 3d07a411b4 ("drm/msm/dsi: Use pm_runtime_resume_and_get to prevent refcnt leaks")
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2024-02-23 08:55:15 +01:00
..
clock_ops.c PM: runtime: add devm_pm_clk_create helper 2021-08-26 11:28:07 -07:00
common.c PM / Domains: Introduce dev_pm_domain_start() 2019-11-13 11:41:50 +01:00
domain.c pmdomain: core: Move the unused cleanup to a _sync initcall 2024-02-23 08:55:10 +01:00
domain_governor.c PM: domains: fix some kernel-doc issues 2021-06-08 14:56:11 +02:00
generic_ops.c drivers: base: power: add proper SPDX identifiers on files that did not have them. 2019-04-04 20:03:40 +02:00
main.c PM: sleep: Fix possible deadlocks in core system-wide PM code 2024-02-23 08:54:33 +01:00
Makefile PM / QoS: Initial kunit test 2019-11-29 12:04:49 +01:00
power.h PM: sleep: wakeirq: fix wake irq arming 2023-08-11 15:14:00 +02:00
qos-test.c kunit: allow kunit tests to be loaded as a module 2020-01-09 16:42:29 -07:00
qos.c PM / QoS: Restore DEV_PM_QOS_MIN/MAX_FREQUENCY 2019-11-29 12:04:50 +01:00
runtime.c PM: runtime: Have devm_pm_runtime_enable() handle pm_runtime_dont_use_autosuspend() 2024-02-23 08:55:15 +01:00
sysfs.c drivers core: Miscellaneous changes for sysfs_emit 2020-10-02 13:12:07 +02:00
trace.c rtc: Check return value from mc146818_get_time() 2022-04-13 20:59:14 +02:00
wakeirq.c PM: sleep: wakeirq: fix wake irq arming 2023-08-11 15:14:00 +02:00
wakeup.c PM: s2idle: ACPI: Fix wakeup interrupts handling 2022-02-16 12:56:19 +01:00
wakeup_stats.c PM: wakeup: remove redundant assignment to variable retval 2021-04-22 15:22:38 +02:00