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* [PATCH v4 0/2] PM / Domains: Add support for 'required-opps' to set default perf state
@ 2021-07-16 10:00 Rajendra Nayak
  2021-07-16 10:00 ` [PATCH v4 1/2] " Rajendra Nayak
  2021-07-16 10:00 ` [PATCH v4 2/2] arm64: dts: sc7180: Add required-opps for i2c Rajendra Nayak
  0 siblings, 2 replies; 19+ messages in thread
From: Rajendra Nayak @ 2021-07-16 10:00 UTC (permalink / raw)
  To: ulf.hansson, bjorn.andersson, viresh.kumar
  Cc: linux-pm, devicetree, linux-kernel, linux-arm-msm, swboyd, rojay,
	stephan, Rajendra Nayak

v4: Fixed error handling in __genpd_dev_pm_attach()

This is a re-spin of the series [1] which was adding support for a new
DT binding (assigned-performance-state) and based on the discussions on
that thread [2] it was concluded that we could achieve the same with the
existing 'required-opps' binding instead.

So this series, just drops the new binding and uses required-opps to achieve
the default perf state setting thats needed by some devices.

---
Some devics within power-domains with performance states do not
support DVFS, but still need to vote on a default/static state
while they are active. Add support for this using the 'required-opps'
property in device tree.

[1] https://lore.kernel.org/patchwork/project/lkml/list/?series=501336&state=%2A&archive=both
[2] https://lore.kernel.org/patchwork/patch/1436886/

Rajendra Nayak (2):
  PM / Domains: Add support for 'required-opps' to set default perf
    state
  arm64: dts: sc7180: Add required-opps for i2c

 arch/arm64/boot/dts/qcom/sc7180.dtsi | 24 +++++++++++++++++++++++
 drivers/base/power/domain.c          | 37 +++++++++++++++++++++++++++++++++---
 include/linux/pm_domain.h            |  1 +
 3 files changed, 59 insertions(+), 3 deletions(-)

-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation


^ permalink raw reply	[flat|nested] 19+ messages in thread

end of thread, other threads:[~2021-07-28 18:49 UTC | newest]

Thread overview: 19+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-16 10:00 [PATCH v4 0/2] PM / Domains: Add support for 'required-opps' to set default perf state Rajendra Nayak
2021-07-16 10:00 ` [PATCH v4 1/2] " Rajendra Nayak
2021-07-16 20:19   ` Stephen Boyd
2021-07-19 11:50     ` Rajendra Nayak
2021-07-16 10:00 ` [PATCH v4 2/2] arm64: dts: sc7180: Add required-opps for i2c Rajendra Nayak
2021-07-16 19:39   ` Stephen Boyd
2021-07-16 20:18   ` Bjorn Andersson
2021-07-16 20:21     ` Stephen Boyd
2021-07-16 20:52       ` Bjorn Andersson
2021-07-16 21:49         ` Stephen Boyd
2021-07-16 21:59           ` Bjorn Andersson
2021-07-19  9:37             ` Rajendra Nayak
2021-07-19 19:19               ` Bjorn Andersson
2021-07-20  4:29                 ` Rajendra Nayak
2021-07-25 17:01                   ` Bjorn Andersson
2021-07-27  7:35                     ` Rajendra Nayak
2021-07-28  3:46                       ` Bjorn Andersson
2021-07-28 14:01                         ` Dmitry Baryshkov
2021-07-28 18:47                           ` Bjorn Andersson

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