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From:   Stephan Gerhold <stephan.gerhold@kernkonzept.com>
Subject: [PATCH 0/4] cpufreq: Add basic cpufreq scaling for Qualcomm
 MSM8909
Date:   Tue, 12 Sep 2023 11:40:14 +0200
Message-Id: <20230912-msm8909-cpufreq-v1-0-767ce66b544b@kernkonzept.com>
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To:     Viresh Kumar <viresh.kumar@linaro.org>
Cc:     Andy Gross <agross@kernel.org>,
        Bjorn Andersson <andersson@kernel.org>,
        Konrad Dybcio <konrad.dybcio@linaro.org>,
        Ilia Lin <ilia.lin@kernel.org>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>, linux-pm@vger.kernel.org,
        linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
        devicetree@vger.kernel.org, Ulf Hansson <ulf.hansson@linaro.org>,
        Stephan Gerhold <stephan.gerhold@kernkonzept.com>,
        stable@vger.kernel.org
Precedence: bulk

Add the necessary definitions to the qcom-cpufreq-nvmem driver to
support basic cpufreq scaling on the Qualcomm MSM8909 SoC. In practice
the necessary power domains vary depending on the actual PMIC the SoC
was combined with. With PM8909 the VDD_APC power domain is shared with
VDD_CX so the RPM firmware handles all voltage adjustments, while with
PM8916 and PM660 Linux is responsible to do adaptive voltage scaling
of a dedicated CPU regulator using CPR.

Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com>
---
Stephan Gerhold (4):
      cpufreq: qcom-nvmem: Enable virtual power domain devices
      cpufreq: dt: platdev: Add MSM8909 to blocklist
      dt-bindings: cpufreq: qcom-nvmem: Document MSM8909
      cpufreq: qcom-nvmem: Add MSM8909

 .../bindings/cpufreq/qcom-cpufreq-nvmem.yaml       |  1 +
 drivers/cpufreq/cpufreq-dt-platdev.c               |  1 +
 drivers/cpufreq/qcom-cpufreq-nvmem.c               | 47 +++++++++++++++++++++-
 3 files changed, 48 insertions(+), 1 deletion(-)
---
base-commit: 0bb80ecc33a8fb5a682236443c1e740d5c917d1d
change-id: 20230906-msm8909-cpufreq-dff238de9ff3

Best regards,
-- 
Stephan Gerhold <stephan.gerhold@kernkonzept.com>
Kernkonzept GmbH at Dresden, Germany, HRB 31129, CEO Dr.-Ing. Michael Hohmuth