linux-kernel - Re: [PATCH v2 0/3] SPI core CS delay fixes and additions

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: <20230214185234.uj63aovylzixs6xa@kazuki-mac>
Date:   Wed, 15 Feb 2023 03:52:34 +0900
From:   Kazuki <kazukih0205@...il.com>
To:     Mark Brown <broonie@...nel.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Tudor Ambarus <tudor.ambarus@...rochip.com>,
        linux-spi@...r.kernel.org, devicetree@...r.kernel.org,
        Janne Grunau <j@...nau.net>,
        Alyssa Rosenzweig <alyssa@...enzweig.io>,
        asahi@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Hector Martin <marcan@...can.st>
Subject: Re: [PATCH v2 0/3] SPI core CS delay fixes and additions

On Fri, Jan 13, 2023 at 03:57:26PM +0000, Mark Brown wrote:
> On Fri, 13 Jan 2023 19:23:07 +0900, Hector Martin wrote:
> > Commits f6c911f3308c ("spi: dt-bindings: Introduce
> > spi-cs-setup-ns property") and 33a2fde5f77b ("spi: Introduce
> > spi-cs-setup-ns property") introduced a new property to represent the
> > CS setup delay in the device tree, but they have some issues:
> > 
> > - The property is only parsed as a 16-bit integer number of nanoseconds,
> >   which limits the maximum value to ~65us. This is not a reasonable
> >   upper limit, as some devices might need a lot more.
> > - The property name is inconsistent with other delay properties, which
> >   use a "*-delay-ns" naming scheme.
> > - Only the setup delay is introduced, but not the related hold and
> >   inactive delay times.
> > 
> > [...]
> 
> Applied to
> 
>    https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next
> 
> Thanks!
> 
> [1/3] spi: Use a 32-bit DT property for spi-cs-setup-delay-ns
>       commit: f276aacf5d2f7fb57e400db44c807ea3b9525fd6
Hi,

Shouldn't this be sent to 6.2 before the property becomes a stable ABI?

Thanks,
Kazuki
>