linux-kernel - Re: nvmem creates multiple devices with the same name

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Message-ID: <20190701080642.4oxmw7c3rmwrt5ee@pengutronix.de>
Date:   Mon, 1 Jul 2019 10:06:42 +0200
From:   Sascha Hauer <s.hauer@...gutronix.de>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel@...gutronix.de
Subject: Re: nvmem creates multiple devices with the same name

Hi Srinivas,

On Tue, May 21, 2019 at 11:21:07AM +0200, Sascha Hauer wrote:
> On Tue, May 21, 2019 at 10:02:32AM +0100, Srinivas Kandagatla wrote:
> > 
> > 
> > On 21/05/2019 09:56, Sascha Hauer wrote:
> > > . Are there any suggestions how to register the nvmem devices
> > > with a different name?
> > 
> > struct nvmem_config provides id field for this purpose, this will be used by
> > nvmem to set the device name space along with name field.
> 
> There's no way for a caller to know a unique name/id combination.
> The mtd layer could initialize the id field with the mtd number, but
> that would still not guarantee that another caller, like an EEPROM
> driver or such, doesn't use the same name/id combination.

This is still an unresolved issue. Do you have any input how we could
proceed here?

Thanks
 Sascha

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