linux-kernel - Re: [PATCH v3] dt-bindings: hwmon: adm1272: add analog,temp1-enable binding

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Date:   Tue, 4 May 2021 16:16:42 -0700
From:   Chu Lin <linchuyuan@...gle.com>
To:     Guenter Roeck <linux@...ck-us.net>, robh+dt@...nel.org,
        jdelvare@...e.com
Cc:     Kais Belgaied <belgaied@...gle.com>,
        Jason Ling <jasonling@...gle.com>, linux-hwmon@...r.kernel.org,
        linux-kernel@...r.kernel.org, Zhongqi Li <zhongqil@...gle.com>
Subject: Re: [PATCH v3] dt-bindings: hwmon: adm1272: add analog,temp1-enable binding

Hi Rob,

Please review this device tree patch when you have a chance.

Thanks,
Chu

On Mon, Jul 20, 2020 at 8:48 PM Chu Lin <linchuyuan@...gle.com> wrote:
>
> Problem:
>         adm1272 and adm1278 supports temperature sampling. The
> current way of enabling it requires the user manually unbind the device
> from the driver, flip the temperature sampling control bit and then bind
> the device back to the driver. It would be nice if we can control this in a
> better way by reading the dt.
>
> Solution:
>         Introducing device tree binding analog,temp1-enable. If the
> flag is set, flip the temp1_en control bit on probing.
>
> Testing:
> make dt_binding_check
>
> Signed-off-by: Chu Lin <linchuyuan@...gle.com>
> ---
> ChangeLog v1->v2:
>  - Rename adm1272-adm1278-temp1-en to analog-temperature1-enable
>
> ChangeLog v2->v3:
>  - Rename analog-temperature1-enable analog,temp1-enable
>
>  Documentation/devicetree/bindings/hwmon/adm1275.txt | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/hwmon/adm1275.txt b/Documentation/devicetree/bindings/hwmon/adm1275.txt
> index 1ecd03f3da4d..22ca5a321d5c 100644
> --- a/Documentation/devicetree/bindings/hwmon/adm1275.txt
> +++ b/Documentation/devicetree/bindings/hwmon/adm1275.txt
> @@ -15,6 +15,8 @@ Optional properties:
>
>  - shunt-resistor-micro-ohms
>         Shunt resistor value in micro-Ohm
> +- analog,temp1-enable
> +       Enable temperature sampling. This is supported on adm1272 and adm1278
>
>  Example:
>
> @@ -22,4 +24,5 @@ adm1272@10 {
>         compatible = "adi,adm1272";
>         reg = <0x10>;
>         shunt-resistor-micro-ohms = <500>;
> +       analog,temp1-enable;
>  };
> --
> 2.28.0.rc0.105.gf9edc3c819-goog
>