linux-kernel - [PATCH 0/8] arm64: dts: qcom: msm8916: Rework regulator constraints

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Date:   Wed, 17 May 2023 20:48:39 +0200
From:   Stephan Gerhold <stephan@...hold.net>
To:     Bjorn Andersson <andersson@...nel.org>
Cc:     Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, phone-devel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht,
        Stephan Gerhold <stephan@...hold.net>
Subject: [PATCH 0/8] arm64: dts: qcom: msm8916: Rework regulator
 constraints

Rework the regulator constraints for the MSM8916 device trees to be 
closer to reality. There are several mistakes in there, some of them 
taken over directly from Qualcomm's vendor kernel. Fortunately, none of 
the mistakes is absolutely critical because it turns out that the RPM 
firmware also validates the voltages and silently clamps the requests 
to a proper range. Still, this behavior should be clearly represented 
in the device tree rather than pretending to apply the wrong voltages.

To make the regulator constraints more easily maintainable with a large 
number of similar MSM8916 boards I propose moving the voltages for the 
standard components in the SoC to the shared msm8916-pm8916.dtsi 
include. With this only the actual board-specific regulators are 
described in the board DT.

Signed-off-by: Stephan Gerhold <stephan@...hold.net>
---
Stephan Gerhold (8):
      arm64: dts: qcom: apq8016-sbc: Fix regulator constraints
      arm64: dts: qcom: apq8016-sbc: Fix 1.8V power rail on LS expansion
      arm64: dts: qcom: msm8916: Fix regulator constraints
      arm64: dts: qcom: msm8916: Disable audio codecs by default
      arm64: dts: qcom: pm8916: Move default regulator "-supply"s
      arm64: dts: qcom: msm8916-pm8916: Clarify purpose
      arm64: dts: qcom: msm8916: Define regulator constraints next to usage
      arm64: dts: qcom: msm8916-pm8916: Mark always-on regulators

 arch/arm64/boot/dts/qcom/apq8016-sbc.dts           | 145 +++++----------------
 arch/arm64/boot/dts/qcom/msm8916-acer-a1-724.dts   | 115 ++--------------
 .../boot/dts/qcom/msm8916-alcatel-idol347.dts      | 110 +---------------
 arch/arm64/boot/dts/qcom/msm8916-asus-z00l.dts     | 110 +---------------
 arch/arm64/boot/dts/qcom/msm8916-gplus-fl8005a.dts | 110 +---------------
 arch/arm64/boot/dts/qcom/msm8916-huawei-g7.dts     | 125 ++++--------------
 .../boot/dts/qcom/msm8916-longcheer-l8150.dts      | 110 +---------------
 .../boot/dts/qcom/msm8916-longcheer-l8910.dts      | 110 +---------------
 arch/arm64/boot/dts/qcom/msm8916-pm8916.dtsi       | 121 ++++++++++++++---
 .../dts/qcom/msm8916-samsung-a2015-common.dtsi     | 110 +---------------
 .../boot/dts/qcom/msm8916-samsung-gt5-common.dtsi  | 110 +---------------
 .../boot/dts/qcom/msm8916-samsung-j5-common.dtsi   | 103 ---------------
 .../boot/dts/qcom/msm8916-samsung-serranove.dts    | 103 ---------------
 arch/arm64/boot/dts/qcom/msm8916-ufi.dtsi          | 103 ---------------
 .../boot/dts/qcom/msm8916-wingtech-wt88047.dts     | 119 +++--------------
 arch/arm64/boot/dts/qcom/msm8916.dtsi              |   1 +
 arch/arm64/boot/dts/qcom/pm8916.dtsi               |   4 +-
 17 files changed, 236 insertions(+), 1473 deletions(-)
---
base-commit: 4272e06e19f388ccfe1f04f19060ea84d2a19a8b
change-id: 20230510-msm8916-regulators-97fa33735efe

Best regards,
-- 
Stephan Gerhold <stephan@...hold.net>