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
prev 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]
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