linux-kernel - [PATCH v4 00/12] DDR/L3 Scaling support on SDM845 and SC7180 SoCs

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Date:   Tue,  5 May 2020 01:52:31 +0530
From:   Sibi Sankar <sibis@...eaurora.org>
To:     viresh.kumar@...aro.org, sboyd@...nel.org,
        georgi.djakov@...aro.org, bjorn.andersson@...aro.org,
        saravanak@...gle.com, mka@...omium.org
Cc:     nm@...com, agross@...nel.org, david.brown@...aro.org,
        robh+dt@...nel.org, mark.rutland@....com, rjw@...ysocki.net,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        dianders@...omium.org, vincent.guittot@...aro.org,
        amit.kucheria@...aro.org, ulf.hansson@...aro.org,
        lukasz.luba@....com, sudeep.holla@....com,
        Sibi Sankar <sibis@...eaurora.org>
Subject: [PATCH v4 00/12] DDR/L3 Scaling support on SDM845 and SC7180 SoCs

This patch series aims to extend cpu based scaling support to L3/DDR on
SDM845 and SC7180 SoCs.

Patches [1-3] - Blacklist SDM845 and SC7180 in cpufreq-dt-platdev
Patches [4-8] - Update bw levels based on cpu frequency change
Patches [9-10] - Add tag setting support to OPP
Patches [11-12] - Add the cpu opp tables for SDM845 and SC7180 SoCs.

Depends on the following series:
https://lore.kernel.org/patchwork/cover/1230626/

Georgi,
 Would it make sense to include tag support patches [9-10] in your next
 re-spin?

V4:
 * Migrate to using Georgi's new bindings
 * Misc fixups based on Matthias comments
 * API fixups based on Bjorn's comments on v2
 * Picked up a few R-bs from Matthias

v3:
 * Migrated to using Saravana's opp-kBps bindings [1]
 * Fixed some misc comments from Rajendra
 * Added support for SC7180

v2:
 * Incorporated Viresh's comments from:
 https://lore.kernel.org/lkml/20190410102429.r6j6brm5kspmqxc3@vireshk-i7/
 https://lore.kernel.org/lkml/20190410112516.gnh77jcwawvld6et@vireshk-i7/
 * Dropped cpufreq-map passive governor

Sibi Sankar (12):
  arm64: dts: qcom: sdm845: Add SoC compatible to MTP
  cpufreq: blacklist SDM845 in cpufreq-dt-platdev
  cpufreq: blacklist SC7180 in cpufreq-dt-platdev
  OPP: Add and export helper to update voltage
  OPP: Add and export helper to set bandwidth
  cpufreq: qcom: Update the bandwidth levels on frequency change
  OPP: Add and export helper to get icc path count
  cpufreq: qcom: Disable fast switch when scaling ddr/l3
  dt-bindings: interconnect: Add interconnect-tags bindings
  OPP: Add support for setting interconnect-tags
  arm64: dts: qcom: sdm845: Add cpu OPP tables
  arm64: dts: qcom: sc7180: Add cpu OPP tables

 .../bindings/interconnect/interconnect.txt    |   5 +
 arch/arm64/boot/dts/qcom/sc7180.dtsi          | 168 ++++++++++++
 arch/arm64/boot/dts/qcom/sdm845-mtp.dts       |   2 +-
 arch/arm64/boot/dts/qcom/sdm845.dtsi          | 258 ++++++++++++++++++
 drivers/cpufreq/cpufreq-dt-platdev.c          |   2 +
 drivers/cpufreq/qcom-cpufreq-hw.c             |  89 +++++-
 drivers/opp/core.c                            | 114 ++++++++
 drivers/opp/of.c                              |  25 +-
 include/linux/pm_opp.h                        |  22 ++
 9 files changed, 675 insertions(+), 10 deletions(-)

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