linux-kernel - Re: [PATCH v4 2/9] clkdev: Move clk creation outside of 'clocks

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Message-ID: <155571195672.15276.10172483262833785539@swboyd.mtv.corp.google.com>
Date:   Fri, 19 Apr 2019 15:12:36 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Russell King <linux@...linux.org.uk>,
        Jeffrey Hugo <jhugo@...eaurora.org>,
        Chen-Yu Tsai <wens@...e.org>
Subject: Re: [PATCH v4 2/9] clkdev: Move clk creation outside of 'clocks_mutex'

Quoting Stephen Boyd (2019-04-12 11:31:43)
> We don't need to hold the 'clocks_mutex' here when we're creating a clk
> pointer from a clk_lookup structure. Instead, we just need to make sure
> that the lookup doesn't go away while we dereference the lookup pointer
> to extract the clk_hw pointer out of it. Let's move things around
> slightly so that we have a new function to get the clk_hw out of the
> lookup with the right locking and then chain the two together for what
> used to be __clk_get_sys().
> 
> Cc: Miquel Raynal <miquel.raynal@...tlin.com>
> Cc: Jerome Brunet <jbrunet@...libre.com>
> Cc: Russell King <linux@...linux.org.uk>
> Cc: Michael Turquette <mturquette@...libre.com>
> Cc: Jeffrey Hugo <jhugo@...eaurora.org>
> Cc: Chen-Yu Tsai <wens@...e.org>
> Signed-off-by: Stephen Boyd <sboyd@...nel.org>
> ---

Applied to clk-next