LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Maulik Shah <mkshah@codeaurora.org>
To: swboyd@chromium.org, mka@chromium.org, evgreen@chromium.org,
	bjorn.andersson@linaro.org
Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	agross@kernel.org, dianders@chromium.org, rnayak@codeaurora.org,
	ilina@codeaurora.org, lsrao@codeaurora.org,
	Maulik Shah <mkshah@codeaurora.org>
Subject: [PATCH v4 0/4] Introduce SoC sleep stats driver
Date: Mon,  9 Mar 2020 16:44:13 +0530	[thread overview]
Message-ID: <1583752457-21159-1-git-send-email-mkshah@codeaurora.org> (raw)

Changes in v4:
- Address bjorn's comments from v3 on change 2.
- Add bjorn's Reviewed-by on change 3 and 4.

Changes in v3:
- Address stephen's comments from v2 in change 1 and 2.
- Address bjorn's comments from v2 in change 3 and 4.
- Add Rob and bjorn's Reviewed-by on YAML change.

Changes in v2:
- Convert Documentation to YAML.
- Address stephen's comments from v1.
- Use debugfs instead of sysfs.
- Add sc7180 dts changes for sleep stats
- Add defconfig changes to enable driver
- Include subsystem stats from [1] in this single stats driver.
- Address stephen's comments from [1]
- Update cover letter inline to mention [1]

Qualcomm Technologies, Inc. (QTI)'s chipsets support SoC level low power
modes. SoCs Always On Processor/Resource Power Manager produces statistics
of the SoC sleep modes involving lowering or powering down of the rails and
the oscillator clock.

Additionally multiple subsystems present on SoC like modem, spss, adsp,
cdsp maintains their low power mode statistics in shared memory (SMEM).

Statistics includes SoC sleep mode type, number of times LPM entered, time
of last entry, exit, and accumulated sleep duration in seconds.

This series adds a driver to read the stats and export to debugfs.

[1] https://lore.kernel.org/patchwork/patch/1149381/

Mahesh Sivasubramanian (2):
  dt-bindings: Introduce soc sleep stats bindings for Qualcomm SoCs
  soc: qcom: Add SoC sleep stats driver

Maulik Shah (2):
  arm64: dts: qcom: sc7180: Enable soc sleep stats
  arm64: defconfig: Enable SoC sleep stats driver for Qualcomm

 .../bindings/soc/qcom/soc-sleep-stats.yaml         |  47 ++++
 arch/arm64/boot/dts/qcom/sc7180.dtsi               |   5 +
 arch/arm64/configs/defconfig                       |   1 +
 drivers/soc/qcom/Kconfig                           |  10 +
 drivers/soc/qcom/Makefile                          |   1 +
 drivers/soc/qcom/soc_sleep_stats.c                 | 279 +++++++++++++++++++++
 6 files changed, 343 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/qcom/soc-sleep-stats.yaml
 create mode 100644 drivers/soc/qcom/soc_sleep_stats.c

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

             reply	other threads:[~2020-03-09 11:14 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-09 11:14 Maulik Shah [this message]
2020-03-09 11:14 ` [PATCH v4 1/4] dt-bindings: Introduce SoC sleep stats bindings Maulik Shah
2020-03-09 18:23   ` Stephen Boyd
2020-03-09 18:51     ` Bjorn Andersson
2020-03-09 19:01       ` Stephen Boyd
2020-03-10  8:03         ` Maulik Shah
2020-03-09 11:14 ` [PATCH v4 2/4] soc: qcom: Add SoC sleep stats driver Maulik Shah
2020-03-09 11:14 ` [PATCH v4 3/4] arm64: dts: qcom: sc7180: Enable SoC sleep stats Maulik Shah
2020-03-09 11:14 ` [PATCH v4 4/4] arm64: defconfig: Enable SoC sleep stats driver Maulik Shah

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1583752457-21159-1-git-send-email-mkshah@codeaurora.org \
    --to=mkshah@codeaurora.org \
    --cc=agross@kernel.org \
    --cc=bjorn.andersson@linaro.org \
    --cc=dianders@chromium.org \
    --cc=evgreen@chromium.org \
    --cc=ilina@codeaurora.org \
    --cc=linux-arm-msm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=lsrao@codeaurora.org \
    --cc=mka@chromium.org \
    --cc=rnayak@codeaurora.org \
    --cc=swboyd@chromium.org \
    --subject='Re: [PATCH v4 0/4] Introduce SoC sleep stats driver' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).