linux-kernel - Re: [PATCH v2] mfd: syscon: allow to register syscon with a device

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Date:	Wed, 24 Feb 2016 13:18:02 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Philipp Zabel <p.zabel@...gutronix.de>
Cc:	Lee Jones <lee.jones@...aro.org>,
	Alexander Shiyan <shc_work@...l.ru>,
	Pankaj Dubey <pankaj.dubey@...sung.com>,
	Pawel Moll <pawel.moll@....com>,
	Wolfram Sang <wsa@...-dreams.de>,
	Peter Seiderer <ps.report@....net>,
	Tushar Behera <tushar.behera@...aro.org>,
	linux-kernel@...r.kernel.org, kernel@...gutronix.de
Subject: Re: [PATCH v2] mfd: syscon: allow to register syscon with a device

On Wednesday 24 February 2016 12:19:01 Philipp Zabel wrote:
> Commit bdb0066df96e ("mfd: syscon: Decouple syscon interface from platform
> devices") added the possibility to register syscon devices without
> associated platform device. This also removed regmap debugfs facilities,
> which don't work without a device. Since there is no replacement, this
> patch allows again to register syscon regions with an associated device
> where that this device exists anyway.
> 
> Signed-off-by: Philipp Zabel <p.zabel@...gutronix.de>

Can you elaborate how you want to use the new interface?

My immediate reaction would be that drivers calling syscon_register()
are probably doing something wrong. If we want to restore the
debugfs interfaces, there might be a better way to do this automatically.

	Arnd