From: Oleksij Rempel <o.rempel@pengutronix.de>
To: Vincent Jardin <vjardin@free.fr>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>,
Andi Shyti <andi.shyti@kernel.org>, Frank Li <Frank.Li@nxp.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>, Wolfram Sang <wsa@kernel.org>,
Kaushal Butala <kaushalkernelmailinglist@gmail.com>,
Shawn Guo <shawn.guo@freescale.com>,
Stefan Eichenberger <stefan.eichenberger@toradex.com>,
linux-i2c@vger.kernel.org, imx@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH v2 0/2] i2c: imx: fix SMBus block-read of 0 locking the bus
Date: Thu, 25 Jun 2026 09:18:22 +0200 [thread overview]
Message-ID: <ajzWPi3L8MjyrKfo@pengutronix.de> (raw)
In-Reply-To: <20260525-for-upstream-i2c-lx2160-fix-v1-v2-0-26a3cc8cd055@free.fr>
On Mon, May 25, 2026 at 06:43:14PM +0200, Vincent Jardin wrote:
> i2c-imx rejects a SMBus Block Read byte count of 0 (valid per SMBus 3.1
> 6.5.7) and it returns without a NACK+STOP, leaving the target
> holding SDA so the bus is stuck until a power cycle occur.
>
> The same bug is occuring with two independently introduced spots, so the
> fix is two patches with their respective Fixes: tags and backport ranges:
>
> 1/2 atomic/polling path Fixes: 8e8782c71595 v3.16+
> 2/2 IRQ-driven state machine Fixes: 5f5c2d4579ca v6.13+
>
> Signed-off-by: Vincent Jardin <vjardin@free.fr>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Thank you!
Best Regards,
Oleksij
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prev parent reply other threads:[~2026-06-25 7:18 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-25 11:24 [PATCH 0/2] i2c: imx: fix SMBus block-read of 0 locking the bus Vincent Jardin
2026-05-25 11:24 ` [PATCH 1/2] i2c: imx: fix locked bus on SMBus block-read of 0 (atomic) Vincent Jardin
2026-05-25 11:24 ` [PATCH 2/2] i2c: imx: fix locked bus on SMBus block-read of 0 (IRQ) Vincent Jardin
2026-05-25 16:43 ` [PATCH v2 0/2] i2c: imx: fix SMBus block-read of 0 locking the bus Vincent Jardin
2026-05-25 16:43 ` [PATCH v2 1/2] i2c: imx: fix locked bus on SMBus block-read of 0 (atomic) Vincent Jardin
2026-05-25 16:43 ` [PATCH v2 2/2] i2c: imx: fix locked bus on SMBus block-read of 0 (IRQ) Vincent Jardin
2026-05-26 7:00 ` [PATCH v2 0/2] i2c: imx: fix SMBus block-read of 0 locking the bus Carlos Song (OSS)
2026-05-26 8:12 ` Vincent Jardin
2026-05-26 9:00 ` Carlos Song (OSS)
2026-06-23 20:14 ` Andi Shyti
2026-06-25 7:18 ` Oleksij Rempel [this message]
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