linux-kernel - Re: [PATCH v5 13/36] i2c: tegra: Clean up probe function

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Message-ID: <CAHp75Vfm24pNS_OR5m4DSuxLfH_XA+uzGhC_egk+41gCPchNjg@mail.gmail.com>
Date:   Mon, 7 Sep 2020 11:20:15 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Dmitry Osipenko <digetx@...il.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Laxman Dewangan <ldewangan@...dia.com>,
        Wolfram Sang <wsa@...-dreams.de>,
        Michał Mirosław <mirq-linux@...e.qmqm.pl>,
        linux-i2c <linux-i2c@...r.kernel.org>,
        linux-tegra@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 13/36] i2c: tegra: Clean up probe function

On Sun, Sep 6, 2020 at 9:51 PM Dmitry Osipenko <digetx@...il.com> wrote:
>
> The driver's probe function code is a bit difficult to read. This patch
> reorders code of the probe function, forming groups of code that are easy
> to work with. The reset_control_get() now may return -EPROBE_DEFER on
> newer Tegra SoCs because they use BPMP driver that provides reset controls
> and BPMP doesn't come up early during boot, previously rst was protected
> by other checks error checks in the code, hence dev_err_probe() is used
> now for the rst. The probe tear-down order now matches the driver-removal
> order.

Seems that partially this can be done in the patches that converted to
new/better APIs.

Also consider the use of a temporary variable for struct device
pointer. It might make your life easier.

-- 
With Best Regards,
Andy Shevchenko