linux-kernel - Re: [RFC PATCH v2 2/7] i2c: core: use I2C locking behaviour also for SMBUS

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Message-ID: <CAMuHMdXPbsoWD3kJKK25=KL1kXsA23o7-7LsayMSoB=so4-zxw@mail.gmail.com>
Date:   Mon, 4 Mar 2019 13:35:10 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Wolfram Sang <wsa+renesas@...g-engineering.com>
Cc:     Linux I2C <linux-i2c@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Keerthy <j-keerthy@...com>, Peter Rosin <peda@...ntia.se>,
        Tony Lindgren <tony@...mide.com>,
        Russell King <linux@...linux.org.uk>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Stefan Lengfeld <contact@...fanchrist.eu>,
        Phil Reid <preid@...ctromag.com.au>,
        Tero Kristo <t-kristo@...com>,
        "open list:TI ETHERNET SWITCH DRIVER (CPSW)" 
        <linux-omap@...r.kernel.org>,
        linux-tegra <linux-tegra@...r.kernel.org>
Subject: Re: [RFC PATCH v2 2/7] i2c: core: use I2C locking behaviour also for SMBUS

On Sat, Mar 2, 2019 at 2:49 PM Wolfram Sang
<wsa+renesas@...g-engineering.com> wrote:
> If I2C transfers are executed in atomic contexts, trylock is used
> instead of lock. This behaviour was missing for SMBUS, although a lot of
> transfers are of SMBUS type, either emulated or direct. So, factor out
> the locking routine into a helper and use it for I2C and SMBUS.
>
> Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>
> Acked-by: Peter Rosin <peda@...ntia.se>
> Acked-by: Tony Lindgren <tony@...mide.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds