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

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Date:   Fri, 18 Sep 2020 20:55:27 +0200
From:   Christian Lamparter <chunkeey@...il.com>
To:     ansuelsmth@...il.com, 'Kalle Valo' <kvalo@...eaurora.org>
Cc:     devicetree@...r.kernel.org, netdev@...r.kernel.org,
        linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org,
        ath10k@...ts.infradead.org,
        "'David S. Miller'" <davem@...emloft.net>,
        'Rob Herring' <robh+dt@...nel.org>,
        'Jakub Kicinski' <kuba@...nel.org>,
        linux-mtd@...ts.infradead.org,
        'Srinivas Kandagatla' <srinivas.kandagatla@...aro.org>,
        'Bartosz Golaszewski' <bgolaszewski@...libre.com>
Subject: Re: R: [PATCH 2/2] dt: bindings: ath10k: Document qcom,
 ath10k-pre-calibration-data-mtd

On 2020-09-18 20:31, ansuelsmth@...il.com wrote:
> 
> 
>> -----Messaggio originale-----
>> Da: Christian Lamparter <chunkeey@...il.com>
>> Inviato: venerdì 18 settembre 2020 18:54
>> A: Ansuel Smith <ansuelsmth@...il.com>; Kalle Valo
>> <kvalo@...eaurora.org>
>> Cc: devicetree@...r.kernel.org; netdev@...r.kernel.org; linux-
>> wireless@...r.kernel.org; linux-kernel@...r.kernel.org;
>> ath10k@...ts.infradead.org; David S. Miller <davem@...emloft.net>; Rob
>> Herring <robh+dt@...nel.org>; Jakub Kicinski <kuba@...nel.org>; linux-
>> mtd@...ts.infradead.org; Srinivas Kandagatla
>> <srinivas.kandagatla@...aro.org>; Bartosz Golaszewski
>> <bgolaszewski@...libre.com>
>> Oggetto: Re: [PATCH 2/2] dt: bindings: ath10k: Document qcom, ath10k-
>> pre-calibration-data-mtd
>>
>> On 2020-09-18 18:29, 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>
>>
>> Q: Doesn't mtd now come with nvmem support from the get go? So
>> the MAC-Addresses and pre-caldata could be specified as a
>> nvmem-node in the devicetree? I remember seeing that this was
>> worked on or was this mtd->nvmem dropped?
>>
>> Cheers,
>> Christian
> 
> Sorry a lot for the double email... I think I found what you are talking about.
> It looks like the code was merged but not the documentation.
> Will do some test and check if this works.
> 
> This should be the related patch.
> https://patchwork.ozlabs.org/project/linux-mtd/patch/1521933899-362-4-git-send-email-albeu@free.fr/
> 

Well, I guess the version that was merged:

|commit c4dfa25ab307a277eafa7067cd927fbe4d9be4ba
|Author: Alban Bedel <albeu@...e.fr>
|Date:   Tue Nov 13 15:01:10 2018 +0100
|
|    mtd: add support for reading MTD devices via the nvmem API
|
|    Allow drivers that use the nvmem API to read data stored on MTD devices.
|    For this the mtd devices are registered as read-only NVMEM providers.
|
| >>>We don't support device tree systems for now.<<<

answers this. Sorry for the noise. Yee, this likely isn't going to work
as it is still disabled on purpose.

Regards,
Christian