linux-kernel - Re: [PATCH v4 1/8] dt-bindings: mfd: Add retu/tahvo ASIC chips bindings

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Date:   Tue, 11 Apr 2017 14:57:55 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Javier Martinez Canillas <javier@....samsung.com>
Cc:     linux-kernel@...r.kernel.org, Aaro Koskinen <aaro.koskinen@....fi>,
        devicetree@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        Tony Lindgren <tony@...mide.com>,
        Mark Rutland <mark.rutland@....com>
Subject: Re: [PATCH v4 1/8] dt-bindings: mfd: Add retu/tahvo ASIC chips
 bindings

On Tue, 04 Apr 2017, Javier Martinez Canillas wrote:

> There are Device Tree source files defining a device node for the
> retu/tahvo I2C chip, but there isn't a DT binding document for it.
> 
> Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>
> 
> ---
> 
> Changes in v4:
> - Use "dt-bindings: mfd:" prefix in subject line (Rob Herring).
> - Add information about what functions the device serve (Lee Jones).
> - Avoid using MFD in Device Tree (Lee Jones).
> 
> Changes in v3: None
> Changes in v2: None
> 
>  Documentation/devicetree/bindings/mfd/retu.txt | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/retu.txt

For my own reference:
  Acked-for-MFD-by: Lee Jones <lee.jones@...aro.org>
  
> diff --git a/Documentation/devicetree/bindings/mfd/retu.txt b/Documentation/devicetree/bindings/mfd/retu.txt
> new file mode 100644
> index 000000000000..7df21a2b28ea
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/retu.txt
> @@ -0,0 +1,21 @@
> +* Device tree bindings for Nokia Retu and Tahvo multi-function device
> +
> +Retu and Tahvo are a multi-function devices found on Nokia Internet
> +Tablets (770, N800 and N810). The Retu chip provides watchdog timer
> +and power button control functionalities while Tahvo chip provides
> +USB transceiver functionality.
> +
> +Required properties:
> +- compatible:		"nokia,retu" or "nokia,tahvo"
> +- reg:			Specifies the I2C slave address of the ASIC chip
> +
> +Example:
> +
> +i2c0 {
> +	retu: retu@1 {
> +		compatible = "nokia,retu";
> +		interrupt-parent = <&gpio4>;
> +		interrupts = <12 IRQ_TYPE_EDGE_RISING>;
> +		reg = <0x1>;
> +	};
> +};

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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