linux-kernel - [PATCH v3 0/6] MMCC MSM8998 fixes

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Message-Id: <20230531-topic-8998_mmssclk-v3-0-ba1b1fd9ee75@linaro.org>
Date:   Wed, 09 Aug 2023 21:20:23 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Jeffrey Hugo <jeffrey.l.hugo@...il.com>,
        Imran Khan <kimran@...eaurora.org>,
        Rajendra Nayak <quic_rjendra@...cinc.com>,
        Joonwoo Park <joonwoop@...eaurora.org>,
        Jeffrey Hugo <quic_jhugo@...cinc.com>,
        Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Joerg Roedel <joro@...tes.org>,
        Jeffrey Hugo <quic_jhugo@...cinc.com>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Jami Kettunen <jami.kettunen@...ainline.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, iommu@...ts.linux.dev,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v3 0/6] MMCC MSM8998 fixes

8998 has a couple of issues related to its clock controllers. This series
attemps to fix some of them.

The DT patch should go in first for bisectability, otherwise
clk/pd_ignore_unused will need to be used, as the SMMU GDSC is no longer
considered always-on.

This series results in less "clk stuck at 'on/off'" messages and should
marginally reduce power consumption.

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
Changes in v3:
- Make the commit message more meaningful in patch 6 (krzk)
- Pick up tags
- Link to v2: https://lore.kernel.org/r/20230531-topic-8998_mmssclk-v2-0-34273e275c51@linaro.org

Changes in v2:
- Update bindings
- Separate out the dt patch into two
- Pick up tags
- Link to v1: https://lore.kernel.org/r/20230531-topic-8998_mmssclk-v1-0-2b5a8fc90991@linaro.org

---
Konrad Dybcio (6):
      arm64: dts: qcom: msm8998: Drop bus clock reference from MMSS SMMU
      arm64: dts: qcom: msm8998: Add missing power domain to MMSS SMMU
      clk: qcom: gcc-msm8998: Don't check halt bit on some branch clks
      clk: qcom: mmcc-msm8998: Don't check halt bit on some branch clks
      clk: qcom: mmcc-msm8998: Fix the SMMU GDSC
      dt-bindings: arm-smmu: Fix MSM8998 clocks description

 .../devicetree/bindings/iommu/arm,smmu.yaml        | 41 ++++++++++++++++++++++
 arch/arm64/boot/dts/qcom/msm8998.dtsi              |  8 +++--
 drivers/clk/qcom/gcc-msm8998.c                     |  6 ++--
 drivers/clk/qcom/mmcc-msm8998.c                    |  7 +++-
 4 files changed, 55 insertions(+), 7 deletions(-)
---
base-commit: 21ef7b1e17d039053edaeaf41142423810572741
change-id: 20230531-topic-8998_mmssclk-fd4b2fb7f8c1

Best regards,
-- 
Konrad Dybcio <konrad.dybcio@...aro.org>