linux-kernel - Re: [PATCH v4 1/7] dt-bindings: clk: at91: add an I2S mux clock

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Date:   Thu, 31 May 2018 18:01:17 +0200
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     Rob Herring <robh@...nel.org>
Cc:     Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        devicetree@...r.kernel.org, linux-clk <linux-clk@...r.kernel.org>,
        Linux-ALSA <alsa-devel@...a-project.org>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Boris Brezillon <boris.brezillon@...tlin.com>,
        Mark Brown <broonie@...nel.org>, Cristian.Birsan@...rochip.com
Subject: Re: [PATCH v4 1/7] dt-bindings: clk: at91: add an I2S mux clock

On 31/05/2018 09:20:57-0500, Rob Herring wrote:
> On Thu, May 31, 2018 at 5:25 AM, Codrin Ciubotariu
> <codrin.ciubotariu@...rochip.com> wrote:
> > On 31.05.2018 03:58, Rob Herring wrote:
> >>
> >> On Fri, May 25, 2018 at 03:34:22PM +0300, Codrin Ciubotariu wrote:
> >>>
> >>> The I2S mux clock can be used to select the I2S input clock. The
> >>> available parents are the peripheral and the generated clocks.
> >>>
> >>> Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>
> >>> ---
> >>>   .../devicetree/bindings/clock/at91-clock.txt       | 34
> >>> ++++++++++++++++++++++
> >>>   1 file changed, 34 insertions(+)
> >>>
> >>> diff --git a/Documentation/devicetree/bindings/clock/at91-clock.txt
> >>> b/Documentation/devicetree/bindings/clock/at91-clock.txt
> >>> index 51c259a..1c46b3c 100644
> >>> --- a/Documentation/devicetree/bindings/clock/at91-clock.txt
> >>> +++ b/Documentation/devicetree/bindings/clock/at91-clock.txt
> >>> @@ -90,6 +90,8 @@ Required properties:
> >>>         "atmel,sama5d2-clk-audio-pll-pmc"
> >>>                 at91 audio pll output on AUDIOPLLCLK that feeds the PMC
> >>>                 and can be used by peripheral clock or generic clock
> >>> +       "atmel,sama5d2-clk-i2s-mux":
> >>> +               at91 I2S clock source selection
> >>
> >>
> >> Is this boolean or takes some values. If latter, what are valid values?
> >
> >
> > This is the compatible string of the clock driver.
> 
> Ah, now I remember. AT91 uses fine grained clock nodes in DT. Is there
> still a plan to fix this?
> 

There is still a plan to do that, hopefully soon (I'd like to aim for
the next release or the one after).

I think this one should go in as-is so it can be fixed with all the
other one at once.

-- 
Alexandre Belloni, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com