From: Andy Shevchenko <andy.shevchenko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Eddie James <eajames-tEXmvtCZX7AybS5Ee8rs3A@public.gmane.org>
Cc: linux-spi <linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Linux Kernel Mailing List
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Joel Stanley <joel-U3u1mxZcP9KHXe+LvDLADg@public.gmane.org>,
Andrew Jeffery <andrew-zrmu5oMJ5Fs@public.gmane.org>
Subject: Re: [PATCH v2] spi: Add FSI-attached SPI controller driver
Date: Tue, 4 Feb 2020 13:05:28 +0200 [thread overview]
Message-ID: <CAHp75VfHAS46-kMyg7Ky4jn7zmkht6wd9ayCfn+rrO0R6aNr6A@mail.gmail.com> (raw)
In-Reply-To: <20200203223003.4567-1-eajames-tEXmvtCZX7AybS5Ee8rs3A@public.gmane.org>
On Tue, Feb 4, 2020 at 12:30 AM Eddie James <eajames-tEXmvtCZX7AybS5Ee8rs3A@public.gmane.org> wrote:
>
> There exists a set of SPI controllers on some POWER processors that may
> be accessed through the FSI bus. Add a driver to traverse the FSI CFAM
> engine that can access and drive the SPI controllers. This driver would
> typically be used by a baseboard management controller (BMC).
>
> The SPI controllers operate by means of programming a sequencing engine
> which automatically manages the usual SPI protocol buses. The driver
> programs each transfer into the sequencer as various operations
> specifying the slave chip and shifting data in and out on the lines.
Some comments left unsettled in v1, thus applicable here.
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2020-02-04 11:05 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-03 22:30 [PATCH v2] spi: Add FSI-attached SPI controller driver Eddie James
[not found] ` <20200203223003.4567-1-eajames-tEXmvtCZX7AybS5Ee8rs3A@public.gmane.org>
2020-02-04 11:05 ` Andy Shevchenko [this message]
[not found] ` <CAHp75VfHAS46-kMyg7Ky4jn7zmkht6wd9ayCfn+rrO0R6aNr6A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2020-02-24 18:54 ` Eddie James
2020-02-25 5:08 ` Joel Stanley
2020-02-25 9:38 ` Andy Shevchenko
[not found] ` <CACPK8XdmdksFctYk96x46XJcxe3yQD3HfAzC8gdF_GXWJHeu2A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2020-02-25 19:45 ` Eddie James
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