linux-kernel - Re: [PATCH v2 10/10] i2c: remove i2c_lock_adapter and use i2c_lock

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Date:   Tue, 26 Jun 2018 19:39:43 +0530
From:   Sekhar Nori <nsekhar@...com>
To:     Peter Rosin <peda@...ntia.se>, <linux-kernel@...r.kernel.org>
CC:     Peter Huewe <peterhuewe@....de>,
        Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
        Jason Gunthorpe <jgg@...pe.ca>, Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Brian Norris <computersforpeace@...il.com>,
        Gregory Fong <gregory.0xf0@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        <bcm-kernel-feedback-list@...adcom.com>,
        Kevin Hilman <khilman@...nel.org>,
        Haavard Skinnemoen <hskinnemoen@...il.com>,
        Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Orson Zhai <orsonzhai@...il.com>,
        Baolin Wang <baolin.wang@...aro.org>,
        Chunyan Zhang <zhang.lyra@...il.com>,
        Wolfram Sang <wsa@...-dreams.de>,
        Guenter Roeck <linux@...ck-us.net>, Crt Mori <cmo@...exis.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Antti Palosaari <crope@....fi>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Michael Krufky <mkrufky@...uxtv.org>,
        Lee Jones <lee.jones@...aro.org>,
        <linux-integrity@...r.kernel.org>, <linux-i2c@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-samsung-soc@...r.kernel.org>, <linux-iio@...r.kernel.org>,
        <linux-input@...r.kernel.org>, <linux-media@...r.kernel.org>
Subject: Re: [PATCH v2 10/10] i2c: remove i2c_lock_adapter and use
 i2c_lock_bus directly

On Wednesday 20 June 2018 10:48 AM, Peter Rosin wrote:
> The i2c_lock_adapter name is ambiguous since it is unclear if it
> refers to the root adapter or the adapter you name in the argument.
> The natural interpretation is the adapter you name in the argument,
> but there are historical reasons for that not being the case; it
> in fact locks the root adapter. Just remove the function and force
> users to spell out the I2C_LOCK_ROOT_ADAPTER name to indicate what
> is really going on. Also remove i2c_unlock_adapter, of course.
> 
> This patch was generated with
> 
> git grep -l 'i2c_\(un\)\?lock_adapter' \
> | xargs sed -i 's/i2c_\(un\)\?lock_adapter(\([^)]*\))/'\
> 'i2c_\1lock_bus(\2, I2C_LOCK_ROOT_ADAPTER)/g'
> 
> followed by white-space touch-up.
> 
> Signed-off-by: Peter Rosin <peda@...ntia.se>
> ---
>  drivers/i2c/busses/i2c-brcmstb.c   |  8 ++++----
>  drivers/i2c/busses/i2c-davinci.c   |  4 ++--

On DM644x and DA850 EVMs applying this series does not seem to break I2C
functionality. So:

Tested-by: Sekhar Nori <nsekhar@...com>

Thanks,
Sekhar