linux-kernel - Re: [PATCH v4 2/5] mfd: syscon: add a DT property to set value width

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: <20151124162439.GC4616@localhost>
Date:	Tue, 24 Nov 2015 11:24:39 -0500
From:	Damien Riegel <damien.riegel@...oirfairelinux.com>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-watchdog@...r.kernel.org, robh+dt@...nel.org,
	shawnguo@...nel.org, kernel@...gutronix.de, wim@...ana.be,
	sameo@...ux.intel.com, dinh.linux@...il.com, linux@...ck-us.net,
	Arnd Bergmann <arnd@...db.de>, kernel@...oirfairelinux.com
Subject: Re: [PATCH v4 2/5] mfd: syscon: add a DT property to set value width

On Tue, Nov 24, 2015 at 08:20:36AM +0000, Lee Jones wrote:
> On Mon, 23 Nov 2015, Damien Riegel wrote:
> 
> > Currently syscon has a fixed configuration of 32 bits for register and
> > values widths. In some cases, it would be desirable to be able to
> > customize the value width.
> > 
> > For example, certain boards (like the ones manufactured by Technologic
> > Systems) have a FPGA that is memory-mapped, but its registers are only
> > 16-bit wide.
> > 
> > This patch adds an optional "bus-width" DT binding for syscon that
> > allows to change the width for the data bus (i.e. val_bits). If this
> > property is provided, it will also adjust the register stride to
> > bus-width / 8. If not provided, the default configuration is used.
> > 
> > Signed-off-by: Damien Riegel <damien.riegel@...oirfairelinux.com>
> > ---
> >  Documentation/devicetree/bindings/mfd/syscon.txt |  3 +++
> >  drivers/mfd/syscon.c                             | 13 +++++++++++++
> >  2 files changed, 16 insertions(+)
> 
> Works for me.
> 
> For my own reference:
>   Acked-by: Lee Jones <lee.jones@...aro.org>

This pachset requires a new version to fix something in the watchdog,
I will add your Ack in the v5.

> 
> How would you like this set to be handled?
> 

Not sure what you mean. Actually, I don't know how it works for such
patchset with changes across multiple subsystems. What are the options?


Damien
--
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/