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Message-ID: <7c484433-bb0d-4628-a885-281b971eb0e8@kernel.org>
Date: Thu, 4 Dec 2025 08:55:22 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Jishnu Prakash <jishnu.prakash@....qualcomm.com>
Cc: jic23@...nel.org, robh@...nel.org, krzysztof.kozlowski@...aro.org,
krzk+dt@...nel.org, conor+dt@...nel.org, agross@...nel.org,
andersson@...nel.org, lumag@...nel.org, dmitry.baryshkov@....qualcomm.com,
konradybcio@...nel.org, daniel.lezcano@...aro.org, sboyd@...nel.org,
amitk@...nel.org, thara.gopinath@...il.com, lee@...nel.org,
rafael@...nel.org, subbaraman.narayanamurthy@....qualcomm.com,
david.collins@....qualcomm.com, anjelique.melendez@....qualcomm.com,
kamal.wadhwa@....qualcomm.com, rui.zhang@...el.com, lukasz.luba@....com,
devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-pm@...r.kernel.org, cros-qcom-dts-watchers@...omium.org,
quic_kotarake@...cinc.com, neil.armstrong@...aro.org,
stephan.gerhold@...aro.org
Subject: Re: [PATCH V8] dt-bindings: iio/adc: Move QCOM ADC channel
definitions out of bindings folder
On 04/12/2025 08:54, Krzysztof Kozlowski wrote:
> On Thu, Nov 27, 2025 at 07:09:03PM +0530, Jishnu Prakash wrote:
>> There are several header files containing QCOM ADC macros for channel names
>> right now in the include/dt-bindings/iio folder. Since these are hardware
>> constants mostly used in devicetree and not exactly bindings, move the
>> files to the arch/arm(64)/boot/dts/qcom folders.
>>
>> Correct the header file paths in all affected devicetree files to fix
>> compilation errors seen with this move. Update documentation files
>> similarly to fix dtbinding check errors for the same. Make a copy
>> of the header file with constants used in ADC driver files in the
>> /include/linux/iio/adc folder and update driver files to use this
>> path to include it.
>>
>> Signed-off-by: Jishnu Prakash <jishnu.prakash@....qualcomm.com>
>> ---
>> Changes since v7:
>> - Based on a discussion with Krzysztof concluded here:
>> https://lore.kernel.org/all/d10e2eea-4b86-4e1a-b7a0-54c55907a605@oss.qualcomm.com/,
>> moved ADC macro header files to arch/arm(64)/boot/dts/qcom folders. The file
>> include/dt-bindings/iio/qcom,spmi-vadc.h is moved to arch/arm/boot/dts/qcom/
>> as it is used in both arm and arm64 SoCs and other per-PMIC adc7 header files
>> are moved to arch/arm64/boot/dts/qcom.
>> - Updated affected devicetree and documentation files based on path changes above.
>> - Made a copy of qcom,spmi-vadc.h in /include/linux/iio/adc folder
>> for inclusion in ADC driver files and updated affected driver files to use it.
>> - Dropped Acked-by tags from Lee, Rob and Jonathan due to these significant changes
>> made in latest patch version.
>> - Updated some more devicetree files affected by this change.
>> - Pushing this as a standalone change separate from ADC5 Gen3 series, as that
>> series will no longer depend upon this patch for the location of
>> qcom,spmi-vadc.h, as ADC5 Gen3 macros will be added in separate new files.
>> - Link to v7: https://lore.kernel.org/all/20250826083657.4005727-2-jishnu.prakash@oss.qualcomm.com/
>>
>> Changes since v6:
>> - Collected Acked-by tag from Jonathan.
>>
>> Changes since v5:
>> - Updated one more devicetree file requiring this change.
>> Ran full dt_binding_check and dtbs_check and verified that no
>> errors were reported related to this patch.
>>
>> Mentioning this explicitly as there was an invalid error reported on
>> this patch in the last two patch series, from upstream kernel
>> automation:
>>
>> fatal error: dt-bindings/iio/adc/qcom,spmi-vadc.h: No such file or directory
>>
>> The error is invalid as this file does get added in this patch, in
>> previous patch series too.
>>
>> Links to discussion for same in v5:
>> https://lore.kernel.org/all/cc328ade-a05e-4b1d-a8f0-55b18b4a0873@oss.qualcomm.com/
>> https://lore.kernel.org/all/9f24e85d-f762-4c29-a58f-ed7652f50919@oss.qualcomm.com/
>>
>> Links to discussion for same in v4:
>> https://lore.kernel.org/all/16aaae04-4fe8-4227-9374-0919960a4ca2@quicinc.com/
>>
>> Changes since v4:
>> - Updated some more devicetree files requiring this change.
>>
>> Changes since v3:
>> - Updated files affected by adc file path change in /arch/arm, which
>> were missed earlier. Updated some more new devicetree files requiring
>> this change in /arch/arm64.
>>
>> Changes since v2:
>> - Updated some more new devicetree files requiring this change.
>> - Collected Acked-by tags from Rob and Lee.
>>
>> .../bindings/iio/adc/qcom,spmi-vadc.yaml | 4 +-
>> .../bindings/mfd/qcom,spmi-pmic.yaml | 2 +-
>> .../bindings/thermal/qcom-spmi-adc-tm-hc.yaml | 2 +-
>> .../bindings/thermal/qcom-spmi-adc-tm5.yaml | 6 +-
>
> You have a checkpatch warning for a reason. You should not make these
> combined into one change.
>
>> arch/arm/boot/dts/qcom/pm8226.dtsi | 2 +-
>> arch/arm/boot/dts/qcom/pm8941.dtsi | 3 +-
>> arch/arm/boot/dts/qcom/pma8084.dtsi | 2 +-
>> arch/arm/boot/dts/qcom/pmx55.dtsi | 2 +-
>> .../arm/boot/dts/qcom}/qcom,spmi-vadc.h | 0
>> arch/arm64/boot/dts/qcom/pm4125.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pm6125.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pm6150.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pm6150l.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pm660.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pm660l.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pm7250b.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pm8150.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pm8150b.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pm8150l.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pm8916.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pm8937.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pm8950.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pm8953.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pm8994.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pm8998.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pmi632.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pmi8950.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pmm8155au_1.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pmp8074.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/pms405.dtsi | 2 +-
>> .../boot/dts/qcom/qcm6490-fairphone-fp5.dts | 4 +-
>> .../dts/qcom/qcm6490-particle-tachyon.dts | 4 +-
>> .../boot/dts/qcom/qcm6490-shift-otter.dts | 4 +-
>> .../boot/dts/qcom}/qcom,spmi-adc7-pm7325.h | 2 +-
>> .../boot/dts/qcom}/qcom,spmi-adc7-pm8350.h | 2 +-
>> .../boot/dts/qcom}/qcom,spmi-adc7-pm8350b.h | 2 +-
>> .../boot/dts/qcom}/qcom,spmi-adc7-pmk8350.h | 2 +-
>> .../boot/dts/qcom}/qcom,spmi-adc7-pmr735a.h | 2 +-
>> .../boot/dts/qcom}/qcom,spmi-adc7-pmr735b.h | 2 +-
>> .../boot/dts/qcom}/qcom,spmi-adc7-smb139x.h | 2 +-
>> .../dts/qcom/qcs6490-radxa-dragon-q6a.dts | 4 +-
>> arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 4 +-
>> arch/arm64/boot/dts/qcom/sc7280-idp.dts | 2 +-
>> arch/arm64/boot/dts/qcom/sc7280-idp.dtsi | 2 +-
>> arch/arm64/boot/dts/qcom/sc7280-qcard.dtsi | 4 +-
>> arch/arm64/boot/dts/qcom/sc8180x-pmics.dtsi | 2 +-
>> .../boot/dts/qcom/sc8280xp-huawei-gaokun3.dts | 2 +-
>> .../qcom/sc8280xp-lenovo-thinkpad-x13s.dts | 2 +-
>> .../dts/qcom/sc8280xp-microsoft-blackrock.dts | 2 +-
>> arch/arm64/boot/dts/qcom/sc8280xp-pmics.dtsi | 6 +-
>> .../boot/dts/qcom/sm7225-fairphone-fp4.dts | 2 +-
>> .../boot/dts/qcom/sm7325-nothing-spacewar.dts | 6 +-
>> arch/arm64/boot/dts/qcom/sm8450-hdk.dts | 9 +-
>> drivers/iio/adc/qcom-spmi-adc5.c | 3 +-
>> drivers/iio/adc/qcom-spmi-vadc.c | 3 +-
>> include/linux/iio/adc/qcom,spmi-vadc.h | 303 ++++++++++++++++++
>> 56 files changed, 374 insertions(+), 73 deletions(-)
>> rename {include/dt-bindings/iio => arch/arm/boot/dts/qcom}/qcom,spmi-vadc.h (100%)
>> rename {include/dt-bindings/iio => arch/arm64/boot/dts/qcom}/qcom,spmi-adc7-pm7325.h (98%)
>> rename {include/dt-bindings/iio => arch/arm64/boot/dts/qcom}/qcom,spmi-adc7-pm8350.h (98%)
>> rename {include/dt-bindings/iio => arch/arm64/boot/dts/qcom}/qcom,spmi-adc7-pm8350b.h (99%)
>> rename {include/dt-bindings/iio => arch/arm64/boot/dts/qcom}/qcom,spmi-adc7-pmk8350.h (98%)
>> rename {include/dt-bindings/iio => arch/arm64/boot/dts/qcom}/qcom,spmi-adc7-pmr735a.h (96%)
>> rename {include/dt-bindings/iio => arch/arm64/boot/dts/qcom}/qcom,spmi-adc7-pmr735b.h (96%)
>> rename {include/dt-bindings/iio => arch/arm64/boot/dts/qcom}/qcom,spmi-adc7-smb139x.h (93%)
>
> Huh, what? How can you drop the header? Are you sure you checked
> previous commits, e.g. pinctrl headers, how this should be done? Where
> did you see such commit dropping the ABI?
>
You too can use search to see how this was done...
https://lore.kernel.org/all/20220605160508.134075-1-krzysztof.kozlowski@linaro.org/
Best regards,
Krzysztof
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