All of lore.kernel.org
 help / color / mirror / Atom feed
From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Phil Edworthy <phil.edworthy@renesas.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Wolfram Sang <wsa@kernel.org>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Jarkko Nikula <jarkko.nikula@linux.intel.com>,
	Sam Protsenko <semen.protsenko@linaro.org>,
	Sven Peter <sven@svenpeter.dev>, Jie Deng <jie.deng@intel.com>,
	Jan Dabros <jsd@semihalf.com>,
	Lukas Bulwahn <lukas.bulwahn@gmail.com>,
	Tyrone Ting <kfting@nuvoton.com>, Arnd Bergmann <arnd@arndb.de>,
	Olof Johansson <olof@lixom.net>,
	Biju Das <biju.das.jz@bp.renesas.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
	<devicetree@vger.kernel.org>,
	Linux I2C <linux-i2c@vger.kernel.org>,
	Linux-Renesas <linux-renesas-soc@vger.kernel.org>
Subject: Re: [PATCH 0/2] i2c: Add new driver for Renesas RZ/V2M controller
Date: Fri, 24 Jun 2022 13:18:49 +0200	[thread overview]
Message-ID: <CAMuHMdWHL4W4JW72yczODohj+xZ3EmqVm0dtuWxbfY_fs3VZeg@mail.gmail.com> (raw)
In-Reply-To: <20220624101736.27217-1-phil.edworthy@renesas.com>

Hi Phil,

Thanks for your series!

On Fri, Jun 24, 2022 at 12:17 PM Phil Edworthy
<phil.edworthy@renesas.com> wrote:
> The Renesas RZ/V2M SoC (r9a09g011) has a new i2c controller. This series
> add the driver. One annoying problem is that the SoC uses a single reset
> line for two i2c controllers, and unfortunately one of the controllers
> is managed by some firmware, not by Linux. Therefore, the driver just
> deasserts the reset.

That is actually an integration issue, not an i2c controller issue.

Perhaps we need a RESET_IS_CRITICAL flag, cfr. CLK_IS_CRITICAL,
to be set by the reset provider?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-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

      parent reply	other threads:[~2022-06-24 11:19 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-24 10:17 [PATCH 0/2] i2c: Add new driver for Renesas RZ/V2M controller Phil Edworthy
2022-06-24 10:17 ` [PATCH 1/2] dt-bindings: i2c: Document RZ/V2M I2C controller Phil Edworthy
2022-06-25 20:43   ` Krzysztof Kozlowski
2022-06-27  7:17     ` Phil Edworthy
2022-06-27  9:17       ` Krzysztof Kozlowski
2022-06-24 10:17 ` [PATCH 2/2] i2c: Add Renesas RZ/V2M controller Phil Edworthy
2022-06-24 11:27   ` Arnd Bergmann
2022-06-24 11:48     ` Geert Uytterhoeven
2022-06-28 10:17       ` Andy Shevchenko
2022-06-28 10:26         ` Geert Uytterhoeven
2022-06-28 10:49         ` Phil Edworthy
2022-06-24 14:00     ` Phil Edworthy
2022-06-28 13:42   ` Geert Uytterhoeven
2022-06-28 19:29     ` Phil Edworthy
2022-06-24 11:18 ` Geert Uytterhoeven [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAMuHMdWHL4W4JW72yczODohj+xZ3EmqVm0dtuWxbfY_fs3VZeg@mail.gmail.com \
    --to=geert@linux-m68k.org \
    --cc=andriy.shevchenko@linux.intel.com \
    --cc=arnd@arndb.de \
    --cc=biju.das.jz@bp.renesas.com \
    --cc=devicetree@vger.kernel.org \
    --cc=geert+renesas@glider.be \
    --cc=jarkko.nikula@linux.intel.com \
    --cc=jie.deng@intel.com \
    --cc=jsd@semihalf.com \
    --cc=kfting@nuvoton.com \
    --cc=krzk@kernel.org \
    --cc=linux-i2c@vger.kernel.org \
    --cc=linux-renesas-soc@vger.kernel.org \
    --cc=lukas.bulwahn@gmail.com \
    --cc=olof@lixom.net \
    --cc=p.zabel@pengutronix.de \
    --cc=phil.edworthy@renesas.com \
    --cc=robh@kernel.org \
    --cc=semen.protsenko@linaro.org \
    --cc=sven@svenpeter.dev \
    --cc=wsa@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.