From mboxrd@z Thu Jan  1 00:00:00 1970
From: Wolfram Sang <wsa@the-dreams.de>
Subject: Re: [PATCH v7 22/24] [media] rtl2832: change the i2c gate to be
 mux-locked
Date: Thu, 28 Apr 2016 23:47:58 +0200
Message-ID: <20160428214758.GA4531@katana>
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To: Peter Rosin <peda@axentia.se>
Cc: linux-kernel@vger.kernel.org, Jonathan Corbet <corbet@lwn.net>, Peter Korsgaard <peter.korsgaard@barco.com>, Guenter Roeck <linux@roeck-us.net>, Jonathan Cameron <jic23@kernel.org>, Hartmut Knaack <knaack.h@gmx.de>, Lars-Peter Clausen <lars@metafoo.de>, Peter Meerwald <pmeerw@pmeerw.net>, Antti Palosaari <crope@iki.fi>, Mauro Carvalho Chehab <mchehab@osg.samsung.com>, Rob Herring <robh+dt@kernel.org>, Frank Rowand <frowand.list@gmail.com>, Grant Likely <grant.likely@linaro.org>, Andrew Morton <akpm@linux-foundation.org>, "David S. Miller" <davem@davemloft.net>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Kalle Valo <kvalo@codeaurora.org>, Jiri Slaby <jslaby@suse.com>, Daniel Baluta <daniel.baluta@intel.com>, Lucas De Marchi <lucas.demarchi@intel.com>, Adriana Reus <adriana.reus@intel.com>, Matt Ranostay <matt.ranostay@intel.com>, Krzysztof Kozlowski <k.kozlo>
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On Wed, Apr 20, 2016 at 05:18:02PM +0200, Peter Rosin wrote:
> The root i2c adapter lock is then no longer held by the i2c mux during
> accesses behind the i2c gate, and such accesses need to take that lock
> just like any other ordinary i2c accesses do.
>=20
> So, declare the i2c gate mux-locked, and zap the regmap overrides
> that makes the i2c accesses unlocked and use plain old regmap
> accesses. This also removes the need for the regmap wrappers used by
> rtl2832_sdr, so deconvolute the code further and provide the regmap
> handle directly instead of the wrapper functions.
>=20
> Signed-off-by: Peter Rosin <peda@axentia.se>

Antti, I'd need some tag from you since this is not the i2c realm.


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