linux-kernel - RE: [PATCH v6 1/6] clk: Add of_clk_get_by_name

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Date:   Mon, 19 Nov 2018 13:41:24 +0000
From:   Phil Edworthy <phil.edworthy@...esas.com>
To:     Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
CC:     Stephen Boyd <sboyd@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Russell King <linux@...linux.org.uk>,
        "linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: RE: [PATCH v6 1/6] clk: Add of_clk_get_by_name_optional() function

Hi Uwe,

On 19 November 2018 12:58 Uwe Kleine-König wrote:
> On Mon, Nov 19, 2018 at 12:53:46PM +0000, Phil Edworthy wrote:
> > On 19 November 2018 10:46 Uwe Kleine-König wrote:
> > > On Mon, Nov 19, 2018 at 10:41:42AM +0000, Phil Edworthy wrote:
> > > > btw, do we need to add of_clk_get_by_name_optional()? I only added
> it
> > > > as a counterpart to of_clk_get_by_name(), but it may not be needed.
> > >
> > > I don't need it. Given that it is easy to add when someone has a need, I'd
> say,
> > > skip it for now.
> >
> > I'm wondering if we actually need clk_get_optional(). For me at least, I just
> > want devm_clk_get_optional(). That would get rid of the arch patches.
> 
> Given that clk_get_optional will be that simple, it can live in
> linux/clk.h for all implementors of the clk API, then you don't have to
> care about different archs. (Unless I'm missing something.)
You are absolutely right, I'm such a clutz sometimes!

Thanks
Phil

> I don't think it's a good idea to drop clk_get_optional even if you'd
> have to provide arch-specific stuff.
> 
> Best regards
> Uwe
> 
> --
> Pengutronix e.K.                           | Uwe Kleine-König            |
> Industrial Linux Solutions                 | http://www.pengutronix.de/  |