linux-kernel - Re: [PATCH v4 0/6] thermal: tsens: Refactoring for TSENSv2 IP

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Date:   Mon, 2 Jul 2018 19:30:11 +0530
From:   Amit Kucheria <amit.kucheria@...aro.org>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     Rajendra Nayak <rnayak@...eaurora.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Eduardo Valentin <edubezval@...il.com>,
        smohanad@...eaurora.org,
        Vivek Gautam <vivek.gautam@...eaurora.org>,
        Andy Gross <andy.gross@...aro.org>,
        Kees Cook <keescook@...omium.org>,
        Rob Herring <robh@...nel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        lakml <linux-arm-kernel@...ts.infradead.org>,
        Linux PM list <linux-pm@...r.kernel.org>,
        "open list:ARM/QUALCOMM SUPPORT" <linux-soc@...r.kernel.org>
Subject: Re: [PATCH v4 0/6] thermal: tsens: Refactoring for TSENSv2 IP

On Mon, Jul 2, 2018 at 6:14 PM, Amit Kucheria <amit.kucheria@...aro.org> wrote:
> This series is a mixed bag:
> - Some code moves to allow code sharing between various v2.x.y versions of
>   the TSENS IP,
> - new qcom,tsens-v2.4.0 DT property for SDM845 and a generic qcom,tsens-v2
>   property as a fallback compatible for all v2.x.y platforms,
> - new platform support (sdm845)
> - a cleanup patch and
> - a DT change to have a common way to deal with the SROT and TM registers
>   despite slightly different features across the IP family and different
>   register offsets.
>
> Rob mentioned offline that we should expose the full version string of the
> TSENS IP (x.y.z) and have a fallback compatible. I hope patch 4 does what
> you were looking for.
>
> Regards,
> Amit

Forgot to append the changelog. Here it is.

Changes since v3:
- Introduce qcom,tsens-v2.4.0 property and make qcom,tsens-v2 a
  fallback, compatible property.
- Rename ops_v2 to ops_generic_v2

Changes since v2:
- Based on review, moved tsens-8996.c to tsens-v2.c and changed
  corresponding function names, struct names to allow for generic tsensv2
  platforms
- All v2 platforms will now only need to use the qcom,tsen-v2 property
- Added a DT patch to initialize tsens driver on sdm845, now that 4.18-rc1
  will contain an sdm845.dtsi

Changes since v1:
- Move get_temp() from tsens-8996 to tsens-common and rename
- Change 8996 DT entry to allow init_common() to work across sdm845 and
  8996 due to different offsets

> Amit Kucheria (6):
>   thermal: tsens: Get rid of unused fields in structure
>   dt: qcom: 8996: thermal: Move to DT initialisation
>   thermal: tsens: Rename tsens-8996 to tsens-v2 for reuse
>   thermal: tsens: Add support for SDM845
>   thermal: tsens: Check if we have valid data before reading
>   arm64: dts: sdm845: Add tsens nodes
>
>  .../devicetree/bindings/thermal/qcom-tsens.txt     |  2 ++
>  arch/arm64/boot/dts/qcom/msm8996.dtsi              | 12 ++++++-
>  arch/arm64/boot/dts/qcom/sdm845.dtsi               | 16 +++++++++
>  drivers/thermal/qcom/Makefile                      |  2 +-
>  drivers/thermal/qcom/{tsens-8996.c => tsens-v2.c}  | 39 ++++++++++++----------
>  drivers/thermal/qcom/tsens.c                       |  6 ++++
>  drivers/thermal/qcom/tsens.h                       |  7 ++--
>  7 files changed, 62 insertions(+), 22 deletions(-)
>  rename drivers/thermal/qcom/{tsens-8996.c => tsens-v2.c} (66%)
>
> --
> 2.7.4
>
> --
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