linux-kernel - Re: [RFC PATCH v1 0/4] Add support for Allwinner GPADC on D1/T113s/R329 SoCs

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Date:   Sun, 28 May 2023 17:39:37 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Maxim Kiselev <bigunclemax@...il.com>
Cc:     linux-iio@...r.kernel.org, Lars-Peter Clausen <lars@...afoo.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>,
        Conor Dooley <conor@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Heiko Stuebner <heiko.stuebner@...ll.eu>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Cosmin Tanislav <demonsingur@...il.com>,
        Mike Looijmans <mike.looijmans@...ic.nl>,
        Haibo Chen <haibo.chen@....com>,
        ChiYuan Huang <cy_huang@...htek.com>,
        Ramona Bolboaca <ramona.bolboaca@...log.com>,
        Ibrahim Tilki <Ibrahim.Tilki@...log.com>,
        Caleb Connolly <caleb.connolly@...aro.org>,
        William Breathitt Gray <william.gray@...aro.org>,
        Arnd Bergmann <arnd@...db.de>,
        Leonard Göhrs <l.goehrs@...gutronix.de>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Hugo Villeneuve <hvilleneuve@...onoff.com>,
        ChiaEn Wu <chiaen_wu@...htek.com>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [RFC PATCH v1 0/4] Add support for Allwinner GPADC on
 D1/T113s/R329 SoCs

On Wed, 24 May 2023 11:27:29 +0300
Maxim Kiselev <bigunclemax@...il.com> wrote:

> Hi,
> 
> This series adds support for general purpose ADC (GPADC) on new
> Allwinner's SoCs, such as D1, T113s and R329. The implemented driver
> provides basic functionality for getting ADC channels data.
> 
> All of the listed SoCs have the same IP. The only difference is the number
> of available channels:
>      T113 - 1 channel
>      D1   - 2 channels
>      R329 - 4 channels
> 
> This series is just an RFC and I would be glad to see any comments
> about it.
Why 'just an RFC'?  Normal to call out aspects that mean it doesn't yet
make sense for it to be picked up for upstream.

Looks pretty good to me in general rather than RFC material so perhaps
I'm missing something.

Jonathan

> 
> 
> Maxim Kiselev (4):
>   iio: adc: Add Allwinner D1/T113s/R329 SoCs GPADC
>   dt-bindings: iio: adc: Add Allwinner D1/T113s/R329 SoCs GPADC
>   ARM: dts: sun8i: t113s: Add GPADC node
>   riscv: dts: allwinner: d1: Add GPADC node
> 
>  .../iio/adc/allwinner,sun20i-d1-gpadc.yaml    |  52 ++++
>  arch/arm/boot/dts/sun8i-t113s.dtsi            |  12 +
>  arch/riscv/boot/dts/allwinner/sun20i-d1.dtsi  |  10 +
>  drivers/iio/adc/Kconfig                       |  10 +
>  drivers/iio/adc/Makefile                      |   1 +
>  drivers/iio/adc/sun20i-gpadc-iio.c            | 275 ++++++++++++++++++
>  6 files changed, 360 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml
>  create mode 100644 drivers/iio/adc/sun20i-gpadc-iio.c
>