linux-kernel - Re: [PATCH v4] clkdev: add devm_of_clk

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Date:   Thu, 1 Dec 2016 01:56:22 +0000
From:   Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
To:     Stephen Boyd <sboyd@...eaurora.org>
CC:     Russell King - ARM Linux <linux@...linux.org.uk>,
        Rob Herring <robh@...nel.org>,
        Linux-ALSA <alsa-devel@...a-project.org>,
        Linux-DT <devicetree@...r.kernel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Linux-Kernel <linux-kernel@...r.kernel.org>,
        Mark Brown <broonie@...nel.org>, <linux-clk@...r.kernel.org>,
        Linux-ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v4] clkdev: add devm_of_clk_get()


Hi Stephen

> > Current Linux has of_clk_get(), but doesn't have devm_of_clk_get().
> > This patch adds it. It is implemeted in clk-devres.c to share
> > devm_clk_release().
> 
> Please add an explanation of why we want this sort of API. The
> example you gave for audio sound card is useful. We're not going
> to remember 5 months from now why we did something, so we should
> put that here instead of digging through mailing list archives.

OK, will do

> > +struct clk *devm_of_clk_get(struct device *dev,
> > +			    struct device_node *np, int index)
> 
> Please call this devm_get_clk_from_child() instead. Also, replace
> the index argument with a string called con_id. Then call
> of_clk_get_by_name() instead of of_clk_get().

I guess we want to have _of_ on function name ?

  devm_get_clk_from_child() ?
  devm_of_get_clk_from_child ?

Best regards
---
Kuninori Morimoto