linux-kernel - Re: [RFC PATCH v2 1/4] dt-bindings: update the Allwinner GPADC device tree binding for H3

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Date:   Mon, 3 Apr 2017 11:15:23 +0200
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Icenowy Zheng <icenowy@...c.io>
Cc:     Lee Jones <lee.jones@...aro.org>, Chen-Yu Tsai <wens@...e.org>,
        Jonathan Cameron <jic23@...nel.org>,
        Quentin Schulz <quentin.schulz@...e-electrons.com>,
        Zhang Rui <rui.zhang@...el.com>, devicetree@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org,
        linux-sunxi@...glegroups.com
Subject: Re: [RFC PATCH v2 1/4] dt-bindings: update the Allwinner GPADC
 device tree binding for H3

On Sun, Apr 02, 2017 at 09:33:01PM +0800, Icenowy Zheng wrote:
> Allwinner H3 features a thermal sensor like the one in A33, but has its
> register re-arranged, the clock divider moved to CCU (originally the
> clock divider is in ADC) and added a pair of bus clock and reset.
> 
> Update the binding document to cover H3.
> 
> Signed-off-by: Icenowy Zheng <icenowy@...c.io>
> ---
>  .../devicetree/bindings/mfd/sun4i-gpadc.txt        | 23 ++++++++++++++++++++--
>  1 file changed, 21 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt
> index badff3611a98..7753133ca0ff 100644
> --- a/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt
> +++ b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt
> @@ -4,12 +4,20 @@ The Allwinner SoCs all have an ADC that can also act as a thermal sensor
>  and sometimes as a touchscreen controller.
>  
>  Required properties:
> -  - compatible: "allwinner,sun8i-a33-ths",
> +  - compatible: must contain one of the following compatibles:
> +		- "allwinner,sun8i-a33-ths"
> +		- "allwinner,sun8i-h3-ths"
>    - reg: mmio address range of the chip,
>    - #thermal-sensor-cells: shall be 0,
>    - #io-channel-cells: shall be 0,
>  
> -Example:
> +Required properties for the following compatibles:
> +		- "allwinner,sun8i-h3-ths"
> +  - clocks: the bus clock and the input clock of the ADC,
> +  - clock-names: should be "bus" and "ths",

I guess mod instead of ths would be more consistent.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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