[PATCH v2 0/2] PM / devfreq: Add delayed timer for polling

From: Chanwoo Choi
Date: Thu Jul 09 2020 - 01:33:58 EST


Add the delayed timer to devfreq framework in order to support
the periodical polling mode without stop caused by CPU idle state.
Some Non-CPU device must need to monitor the device status like
utilization regardless of CPU state.

- patch1 explains the detailed reason why the delayed timer is required.
- patch2 initializes that exynos5422-dmc device use delayed timer as default
instead of deferrable timer.

Changes from v2:
- Add reviewed-by tag
- Fix typo on patch description
- Remove 'RFC' work from patch title
- Check whether 'df->governor' is NULL or not on timer_store()

Chanwoo Choi (2):
PM / devfreq: Add support delayed timer for polling mode
memory: samsung: exynos5422-dmc: Use delayed timer as default

Documentation/ABI/testing/sysfs-class-devfreq | 12 +++
drivers/devfreq/devfreq.c | 86 ++++++++++++++++++-
drivers/memory/samsung/exynos5422-dmc.c | 1 +
include/linux/devfreq.h | 9 ++
4 files changed, 107 insertions(+), 1 deletion(-)

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2.17.1