linux-kernel - Re: [PATCH 17/25] serial: sh-sci: Correct SCIF type on R-Car for BRG

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAMuHMdU+phbWh_8hgZs7HitHPakLE2Lc_Q9oUPOe-xCvj4uOzA@mail.gmail.com>
Date:	Fri, 20 Nov 2015 08:46:56 +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>
Subject: Re: [PATCH 17/25] serial: sh-sci: Correct SCIF type on R-Car for BRG

Hi Laurent,

On Thu, Nov 19, 2015 at 9:55 PM, Laurent Pinchart
<laurent.pinchart@...asonboard.com> wrote:
> On Thursday 19 November 2015 19:38:56 Geert Uytterhoeven wrote:
>> The "renesas,scif" compatible value is currently used for the SCIF
>> variant in all Renesas SoCs of the R-Car family.  However, the variant
>> used in the R-Car family is not the common "SH-4(A)" variant, but a
>> derivative with added "Baud Rate Generator for External Clock" (BRG),
>> which is also present in sh7734.
>
> Time to introduce a "renesas,scif-rcar" compatible string ? ;-)
>
> As the only DT-enabled platform to have a different SCIF type is r7s72100 we
> could also consider just switching the regtype to SCIx_SH4_SCIF_BRG_REGTYPE
> for the generic "renesas,scif" entry as it's listed after the "renesas,scif-
> r7s72100" entry. That might cause an issue if we want to enable DT on arch/sh
> though, but even if that happens due to the J-Core processors I'd be surprised
> to see the old Renesas SH platforms being moved to DT.

I thought about that, but you never know in which out-of-tree BSP it ended up
being used, too. So better safe than sorry.

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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/