linux-kernel - Re: [PATCH 07/12] mfd: syscon: Consider platform data a regmap config name

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Date:	Wed, 12 Feb 2014 08:26:57 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	Alexander Shiyan <shc_work@...l.ru>
Cc:	Pawel Moll <pawel.moll@....com>, arm@...nel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Samuel Ortiz <sameo@...ux.intel.com>
Subject: Re: [PATCH 07/12] mfd: syscon: Consider platform data a regmap
 config name

> > Use the device platform data as a regmap config
> > name. This is particularly useful in the regmap
> > debugfs when there is more than one syscon device
> > registered, to distinguish the register blocks.
> > 
> > Cc: Samuel Ortiz <sameo@...ux.intel.com>
> > Cc: Lee Jones <lee.jones@...aro.org>
> > Signed-off-by: Pawel Moll <pawel.moll@....com>
> > ---
> ...
> > syscon_regmap_config.max_register = res->end - res->start - 3;
> > +	syscon_regmap_config.name = dev_get_platdata(&pdev->dev);
> 
> Is dev_name(&pdev->dev) can be used for such purpose?

Yes of course.

Either use the automatically generated name or over-ride with
dev->init_name prior to registration or call dev_set_name()
manually. Then retrieve with Alexander's suggestion.

Is there any technical reason why this is not possible with your
implementation?

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