linux-kernel - [RFT PATCH v2 00/17] ARM/hwlock: qcom: switch TCSR mutex to MMIO

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Date:   Wed, 17 Aug 2022 17:58:44 +0300
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Ohad Ben-Cohen <ohad@...ery.com>,
        Baolin Wang <baolin.wang@...ux.alibaba.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Lee Jones <lee@...nel.org>, Vinod Koul <vkoul@...nel.org>,
        linux-arm-msm@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [RFT PATCH v2 00/17] ARM/hwlock: qcom: switch TCSR mutex to MMIO

Hi,

Switch older Qualcomm SoCs to use MMIO-based method instead of syscon.

Not tested on hardware. Please kindly provide tests.

Changes since v1
================
1. Use existing qcom,tcsr-msm8974 compatible.
2. Fix few other TCSR syscon compatibles (new patches: ipq6018, msm8953,
   qcs404, msm8996).
3. New patch: dt-bindings: mfd: qcom,tcsr: drop simple-mfd from IPQ6018
4. New patch: dt-bindings: mfd: qcom,tcsr: add QCS404

Dependencies
============
1. Context in bindings depends on:
   arm64: dts: qcom: improvements to TCSR mutex in DTS
   https://lore.kernel.org/linux-devicetree/20220817130342.568396-1-krzysztof.kozlowski@linaro.org/T/#t

2. The last five DTS commits (ARM and arm64) named "switch TCSR mutex to MMIO"
   depend on driver support. The changes are not bisectable, just like
   previously such changes were not bisectable:
   https://lore.kernel.org/all/20200622075956.171058-5-bjorn.andersson@linaro.org/

Best regards,
Krzysztof

Krzysztof Kozlowski (17):
  dt-bindings: mfd: qcom,tcsr: drop simple-mfd from IPQ6018
  dt-bindings: mfd: qcom,tcsr: add QCS404
  dt-bindings: hwlock: qcom-hwspinlock: add support for MMIO on older
    SoCs
  dt-bindings: hwlock: qcom-hwspinlock: correct example indentation
  hwspinlock: qcom: correct MMIO max register for newer SoCs
  hwspinlock: qcom: add support for MMIO on older SoCs
  arm64: dts: qcom: ipq6018: add missing TCSR syscon compatible
  arm64: dts: qcom: msm8953: add missing TCSR syscon compatible
  arm64: dts: qcom: qcs404: add missing TCSR syscon compatible
  arm64: dts: qcom: msm8996: add missing TCSR syscon compatible
  ARM: dts: qcom: msm8974: add missing TCSR syscon compatible
  ARM: dts: qcom: msm8974: split TCSR halt regs out of mutex
  arm64: dts: qcom: ipq6018: switch TCSR mutex to MMIO
  arm64: dts: qcom: msm8994: switch TCSR mutex to MMIO
  ARM: dts: qcom: msm8974: switch TCSR mutex to MMIO
  ARM: dts: qcom: apq8084: switch TCSR mutex to MMIO
  ARM: dts: qcom: msm8226: switch TCSR mutex to MMIO

 .../bindings/hwlock/qcom-hwspinlock.yaml      | 25 +++++++----
 .../devicetree/bindings/mfd/qcom,tcsr.yaml    | 41 +++++++++---------
 .../arm/boot/dts/qcom-apq8074-dragonboard.dts |  2 +-
 arch/arm/boot/dts/qcom-apq8084.dtsi           | 11 ++---
 arch/arm/boot/dts/qcom-msm8226.dtsi           | 14 ++-----
 .../qcom-msm8974-lge-nexus5-hammerhead.dts    |  2 +-
 .../dts/qcom-msm8974-sony-xperia-rhine.dtsi   |  2 +-
 arch/arm/boot/dts/qcom-msm8974.dtsi           | 25 ++++++-----
 .../dts/qcom-msm8974pro-fairphone-fp2.dts     |  2 +-
 .../boot/dts/qcom-msm8974pro-samsung-klte.dts |  2 +-
 ...-msm8974pro-sony-xperia-shinano-castor.dts |  2 +-
 arch/arm64/boot/dts/qcom/ipq6018.dtsi         | 15 +++----
 arch/arm64/boot/dts/qcom/msm8953.dtsi         |  2 +-
 arch/arm64/boot/dts/qcom/msm8994.dtsi         | 13 ++----
 arch/arm64/boot/dts/qcom/msm8996.dtsi         |  2 +-
 arch/arm64/boot/dts/qcom/qcs404.dtsi          |  2 +-
 drivers/hwspinlock/qcom_hwspinlock.c          | 42 ++++++++++++++-----
 17 files changed, 105 insertions(+), 99 deletions(-)

-- 
2.34.1