linux-kernel - syscon regmap for disabled node?

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Message-ID: <e9863f03-f1b5-9158-76f3-37158a0b4cd4@ti.com>
Date:   Fri, 16 Feb 2018 19:40:43 -0600
From:   Suman Anna <s-anna@...com>
To:     Lee Jones <lee.jones@...aro.org>,
        Pankaj Dubey <pankaj.dubey@...sung.com>,
        Arnd Bergmann <arnd@...db.de>
CC:     <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: syscon regmap for disabled node?

Hi Pankaj, Arnd, Lee,

I am testing some code to use a syscon/regmap interface and I find that
the syscon/regmap is initialized even on a disabled device node using a
"syscon" compatible property when I have expected it to fail. Prior to
commit bdb0066df96e ("mfd: syscon: Decouple syscon interface from
platform devices"), the driver would have never probed, and the
of_syscon_register() only checks for the compatible, but not if the
device node is available. Is this intentional or a bug?

regards
Suman