linux-kernel - Re: [PATCH 3/9] net: ethernet: ti: cpts: rework initialization/deinitialization

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Date:   Thu, 15 Sep 2016 10:13:41 +0200
From:   Richard Cochran <richardcochran@...il.com>
To:     Grygorii Strashko <grygorii.strashko@...com>
Cc:     "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        Mugunthan V N <mugunthanvnm@...com>,
        Sekhar Nori <nsekhar@...com>, linux-kernel@...r.kernel.org,
        linux-omap@...r.kernel.org, WingMan Kwok <w-kwok2@...com>
Subject: Re: [PATCH 3/9] net: ethernet: ti: cpts: rework
 initialization/deinitialization

On Wed, Sep 14, 2016 at 04:02:25PM +0300, Grygorii Strashko wrote:
> The current implementation CPTS initialization and deinitialization
> (represented by cpts_register/unregister()) is pretty entangled and
> has some issues, like:
> - ptp clock registered before spinlock, which is protecting it, and
> before timecounter and cyclecounter initialization;
> - CPTS ref_clk requested using devm API while cpts_register() is
> called from .ndo_open(), as result additional checks required;
> - CPTS ref_clk is prepared, but never unprepared;
> - CPTS is not disabled even when unregistered..

This list of four items is a clear sign that this one patch should be
broken into a series of four.

Thanks,
Richard