linux-kernel - Re: [PATCH 01/25] serial: sh-sci: Update DT binding documentation for external clock input

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Message-ID: <CAMuHMdX4ToefbBLR6o2AMuzCMoKcYo9XRZOzHJzgtQn552vmNg@mail.gmail.com>
Date:	Thu, 19 Nov 2015 21:33:01 +0100
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc:	Geert Uytterhoeven <geert+renesas@...der.be>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Simon Horman <horms@...ge.net.au>,
	Magnus Damm <magnus.damm@...il.com>,
	Yoshinori Sato <ysato@...rs.sourceforge.jp>,
	Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
	"linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>,
	Linux-sh list <linux-sh@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH 01/25] serial: sh-sci: Update DT binding documentation for
 external clock input

Hi Laurent,

On Thu, Nov 19, 2015 at 9:19 PM, Laurent Pinchart
<laurent.pinchart@...asonboard.com> wrote:
> On Thursday 19 November 2015 19:38:40 Geert Uytterhoeven wrote:
>> diff --git a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
>> b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt index
>> 2c9e6b8477e92792..8efc9b6f35637fbb 100644
>> --- a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
>> +++ b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
>> @@ -43,6 +43,9 @@ Required properties:
>>    - clocks: Must contain a phandle and clock-specifier pair for each entry
>>      in clock-names.
>>    - clock-names: Must contain "fck" for the SCIx UART functional clock.
>> +    On (H)SCI(F) and some SCIFA, an additional clock may be specified:
>
> Could you list the SCIFA variants that support external clocks ?

The list is in the commit description of "[PATCH 19/25] serial: sh-sci: Add
support for optional external (H)SCK input": sh7723, sh7724, and r8a7740.

Note that the list is probably incomplete, so I don't know if it's that useful
to have it in the binding docs. Especially as I haven't verified yet that it
actually works ;-)

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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