From: Andi Shyti <andi.shyti@kernel.org>
To: Vincent Jardin <vjardin@free.fr>
Cc: Oleksij Rempel <o.rempel@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Frank Li <Frank.Li@nxp.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
linux-i2c@vger.kernel.org, imx@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Carlos Song <carlos.song@nxp.com>,
Haobin Jiang <lemonoutput@foxmail.com>
Subject: Re: [PATCH v3] i2c: imx: add I2C_M_REV_DIR_ADDR and I2C_M_NOSTART
Date: Fri, 23 Oct 2026 18:32:38 +0200 [thread overview]
Message-ID: <atuMDUXq64XhQgqM@zenone.zhora.eu> (raw)
In-Reply-To: <20261023-for-upstream-i2c-imx-lx2160-reverse-v3-1-a07b249df381@free.fr>
Hi Vincent,
On Fri, Oct 23, 2026 at 04:20:19PM +0200, Vincent Jardin wrote:
> The Realtek RTL8366SE SMI read frame per:
>
> S Addr Rd [A] reg[7:0] [A] reg[15:8] [A] [data[7:0]] A [data[15:8]] NA P
>
> Linux support it using I2C_M_REV_DIR_ADDR on a write message
> that inverts the transmitted R/W bit, and I2C_M_NOSTART on the following
> read message that continues the frame without re-addressing.
>
> This NXP i2c-imx is missing such support, so on an LX2160A the Realtek switch
> could not be used.
>
> Acked-by: Carlos Song <carlos.song@nxp.com>
> Reviewed-by: Frank Li <Frank.Li@nxp.com>
> Signed-off-by: Vincent Jardin <vjardin@free.fr>
pushed to i2c/i2c.
Thanks,
Andi
prev parent reply other threads:[~2026-10-23 16:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-23 14:20 [PATCH v3] i2c: imx: add I2C_M_REV_DIR_ADDR and I2C_M_NOSTART Vincent Jardin via B4 Relay
2026-10-23 16:32 ` Andi Shyti [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=atuMDUXq64XhQgqM@zenone.zhora.eu \
--to=andi.shyti@kernel.org \
--cc=Frank.Li@nxp.com \
--cc=carlos.song@nxp.com \
--cc=festevam@gmail.com \
--cc=imx@lists.linux.dev \
--cc=kernel@pengutronix.de \
--cc=lemonoutput@foxmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-i2c@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=o.rempel@pengutronix.de \
--cc=s.hauer@pengutronix.de \
--cc=vjardin@free.fr \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox