linux-kernel - Re: [PATCH v1 1/3] dt-bindings: Document Broadcom OTP controller driver

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Date:   Sun, 30 Oct 2016 20:38:48 -0500
From:   Rob Herring <robh@...nel.org>
To:     Jonathan Richardson <jonathan.richardson@...adcom.com>
Cc:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Mark Rutland <mark.rutland@....com>,
        Scott Branden <sbranden@...adcom.com>,
        Ray Jui <rjui@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com,
        Jonathan Richardson <jonathar@...adcom.com>,
        Scott Branden <scott.branden@...adcom.com>,
        Oza Pawandeep <oza@...adcom.com>
Subject: Re: [PATCH v1 1/3] dt-bindings: Document Broadcom OTP controller
 driver

On Mon, Oct 24, 2016 at 12:12:02PM -0700, Jonathan Richardson wrote:
> From: Jonathan Richardson <jonathar@...adcom.com>
> 
> Reviewed-by: Ray Jui <ray.jui@...adcom.com>
> Tested-by: Jonathan Richardson <jonathan.richardson@...adcom.com>
> Signed-off-by: Scott Branden <scott.branden@...adcom.com>
> Signed-off-by: Oza Pawandeep <oza@...adcom.com>
> Signed-off-by: Jonathan Richardson <jonathan.richardson@...adcom.com>
> ---
>  Documentation/devicetree/bindings/nvmem/brcm,ocotp.txt | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/nvmem/brcm,ocotp.txt
> 
> diff --git a/Documentation/devicetree/bindings/nvmem/brcm,ocotp.txt b/Documentation/devicetree/bindings/nvmem/brcm,ocotp.txt
> new file mode 100644
> index 0000000..6462e12
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/nvmem/brcm,ocotp.txt
> @@ -0,0 +1,17 @@
> +Broadcom OTP memory controller
> +
> +Required Properties:
> +- compatible: "brcm,ocotp" for the first generation Broadcom OTPC which is used
> +  in Cygnus and supports 32 bit read/write. Use "brcm,ocotp-v2" for the second
> +  generation Broadcom OTPC which is used in SoC's such as Stingray and supports
> +  64-bit read/write.

These should be SoC specific. While I'd guess this block is simple 
enough, having the SoC can define what all the bits are. Yes, there is a 
binding to define those, but you may not use that.


> +- reg: Base address of the OTP controller.
> +- brcm,ocotp-size: Amount of memory available, in 32 bit words
> +
> +Example:
> +
> +otp: otp@...1c800 {
> +	compatible = "brcm,ocotp";
> +	reg = <0x0301c800 0x2c>;
> +	brcm,ocotp-size = <2048>;
> +};
> -- 
> 1.9.1
>