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* [PATCH v5 0/4] Introduce SoC sleep stats driver
@ 2020-03-18  4:29 Maulik Shah
  2020-03-18  4:29 ` [PATCH v5 1/4] dt-bindings: Introduce SoC sleep stats bindings Maulik Shah
                   ` (3 more replies)
  0 siblings, 4 replies; 11+ messages in thread
From: Maulik Shah @ 2020-03-18  4:29 UTC (permalink / raw)
  To: swboyd, mka, evgreen, bjorn.andersson
  Cc: linux-kernel, linux-arm-msm, agross, dianders, rnayak, ilina,
	lsrao, Maulik Shah

Changes in v5:
- Remove underscore from node name in Documentation and DTSI change
- Remove global config from driver change

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
  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

 .../bindings/soc/qcom/soc-sleep-stats.yaml         |  46 ++++
 arch/arm64/boot/dts/qcom/sc7180.dtsi               |   7 +-
 arch/arm64/configs/defconfig                       |   1 +
 drivers/soc/qcom/Kconfig                           |   9 +
 drivers/soc/qcom/Makefile                          |   1 +
 drivers/soc/qcom/soc_sleep_stats.c                 | 244 +++++++++++++++++++++
 6 files changed, 307 insertions(+), 1 deletion(-)
 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

^ permalink raw reply	[flat|nested] 11+ messages in thread

end of thread, other threads:[~2020-08-22 15:45 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-03-18  4:29 [PATCH v5 0/4] Introduce SoC sleep stats driver Maulik Shah
2020-03-18  4:29 ` [PATCH v5 1/4] dt-bindings: Introduce SoC sleep stats bindings Maulik Shah
2020-03-18 21:29   ` Stephen Boyd
2020-03-19 11:35     ` Maulik Shah
2020-03-18  4:29 ` [PATCH v5 2/4] soc: qcom: Add SoC sleep stats driver Maulik Shah
2020-03-19  0:25   ` Stephen Boyd
2020-03-19 15:14     ` Maulik Shah
2020-03-19 22:39       ` Stephen Boyd
2020-08-22 15:45   ` Guenter Roeck
2020-03-18  4:29 ` [PATCH v5 3/4] arm64: dts: qcom: sc7180: Enable SoC sleep stats Maulik Shah
2020-03-18  4:29 ` [PATCH v5 4/4] arm64: defconfig: Enable SoC sleep stats driver Maulik Shah

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