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From: Rajendra Nayak <rnayak@codeaurora.org>
To: ulf.hansson@linaro.org, bjorn.andersson@linaro.org,
	viresh.kumar@linaro.org
Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	swboyd@chromium.org, rojay@codeaurora.org, stephan@gerhold.net,
	Rajendra Nayak <rnayak@codeaurora.org>
Subject: [PATCH v5 0/2] PM / Domains: Add support for 'required-opps' to set default perf state
Date: Tue, 20 Jul 2021 12:37:54 +0530	[thread overview]
Message-ID: <1626764876-10229-1-git-send-email-rnayak@codeaurora.org> (raw)

v5: Dropped all default_pstate handling in runtime suspend/resume

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          | 28 +++++++++++++++++++++++++---
 include/linux/pm_domain.h            |  1 +
 3 files changed, 50 insertions(+), 3 deletions(-)

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


             reply	other threads:[~2021-07-20  7:13 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-20  7:07 Rajendra Nayak [this message]
2021-07-20  7:07 ` [PATCH v5 1/2] " Rajendra Nayak
2021-07-20  7:18   ` Felipe Balbi
2021-08-02 12:59   ` Ulf Hansson
2021-08-03  4:38     ` Rajendra Nayak
2021-08-04 11:08       ` Rajendra Nayak
2021-08-04 11:39         ` Ulf Hansson
2021-08-05  4:05           ` Viresh Kumar
2021-07-20  7:07 ` [PATCH v5 2/2] arm64: dts: sc7180: Add required-opps for i2c Rajendra Nayak

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