linux-kernel - Re: [PATCH v2 2/2] dt: bindings: ath10k: Document qcom,ath10k-pre-calibration-data-mtd

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Date:   Wed, 23 Sep 2020 14:58:24 -0600
From:   Rob Herring <robh@...nel.org>
To:     Ansuel Smith <ansuelsmth@...il.com>
Cc:     Kalle Valo <kvalo@...eaurora.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        ath10k@...ts.infradead.org
Subject: Re: [PATCH v2 2/2] dt: bindings: ath10k: Document
 qcom,ath10k-pre-calibration-data-mtd

On Fri, Sep 18, 2020 at 08:11:03PM +0200, Ansuel Smith wrote:
> Document use of qcom,ath10k-pre-calibration-data-mtd bindings used to
> define from where the driver will load the pre-cal data in the defined
> mtd partition.
> 
> Signed-off-by: Ansuel Smith <ansuelsmth@...il.com>
> ---
>  .../devicetree/bindings/net/wireless/qcom,ath10k.txt | 12 +++++++++---
>  1 file changed, 9 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
> index b61c2d5a0..568364243 100644
> --- a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
> +++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
> @@ -15,9 +15,9 @@ and also uses most of the properties defined in this doc (except
>  "qcom,ath10k-calibration-data"). It uses "qcom,ath10k-pre-calibration-data"
>  to carry pre calibration data.
>  
> -In general, entry "qcom,ath10k-pre-calibration-data" and
> -"qcom,ath10k-calibration-data" conflict with each other and only one
> -can be provided per device.
> +In general, entry "qcom,ath10k-pre-calibration-data",
> +"qcom,ath10k-calibration-data-mtd" and "qcom,ath10k-calibration-data" conflict with
> +each other and only one can be provided per device.
>  
>  SNOC based devices (i.e. wcn3990) uses compatible string "qcom,wcn3990-wifi".
>  
> @@ -63,6 +63,12 @@ Optional properties:
>  				 hw versions.
>  - qcom,ath10k-pre-calibration-data : pre calibration data as an array,
>  				     the length can vary between hw versions.
> +- qcom,ath10k-pre-calibration-data-mtd :

mtd is a Linuxism.

> +	Usage: optional
> +	Value type: <phandle offset size>
> +	Definition: pre calibration data read from mtd partition. Take 3 value, the
> +		    mtd to read data from, the offset in the mtd partition and the

The phandle is the mtd or partition?

Maybe you should be using nvmem binding here.

> +		    size of data to read.
>  - <supply-name>-supply: handle to the regulator device tree node
>  			   optional "supply-name" are "vdd-0.8-cx-mx",
>  			   "vdd-1.8-xo", "vdd-1.3-rfa", "vdd-3.3-ch0",
> -- 
> 2.27.0
>