From: Wolfram Sang <wsa@kernel.org>
To: Christian Eggers <ceggers@arri.de>
Cc: "Oleksij Rempel" <linux@rempel-privat.de>,
"Oleksij Rempel" <o.rempel@pengutronix.de>,
"Shawn Guo" <shawnguo@kernel.org>,
"Sascha Hauer" <s.hauer@pengutronix.de>,
"Fabio Estevam" <festevam@gmail.com>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"David Laight" <David.Laight@aculab.com>,
"Pengutronix Kernel Team" <kernel@pengutronix.de>,
"NXP Linux Team" <linux-imx@nxp.com>,
linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
"Krzysztof Kozlowski" <krzk@kernel.org>,
stable@vger.kernel.org
Subject: Re: [PATCH v6 2/3] i2c: imx: Check for I2SR_IAL after every byte
Date: Sat, 10 Oct 2020 13:09:27 +0200 [thread overview]
Message-ID: <20201010110927.GC4669@ninjato> (raw)
In-Reply-To: <20201009110320.20832-3-ceggers@arri.de>
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On Fri, Oct 09, 2020 at 01:03:19PM +0200, Christian Eggers wrote:
> Arbitration Lost (IAL) can happen after every single byte transfer. If
> arbitration is lost, the I2C hardware will autonomously switch from
> master mode to slave. If a transfer is not aborted in this state,
> consecutive transfers will not be executed by the hardware and will
> timeout.
>
> Signed-off-by: Christian Eggers <ceggers@arri.de>
> Tested (not extensively) on Vybrid VF500 (Toradex VF50):
> Tested-by: Krzysztof Kozlowski <krzk@kernel.org>
> Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
> Cc: stable@vger.kernel.org
Applied to for-next, thanks!
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WARNING: multiple messages have this Message-ID (diff)
From: Wolfram Sang <wsa@kernel.org>
To: Christian Eggers <ceggers@arri.de>
Cc: "Fabio Estevam" <festevam@gmail.com>,
"Sascha Hauer" <s.hauer@pengutronix.de>,
linux-kernel@vger.kernel.org,
"Krzysztof Kozlowski" <krzk@kernel.org>,
"Oleksij Rempel" <linux@rempel-privat.de>,
"Oleksij Rempel" <o.rempel@pengutronix.de>,
"David Laight" <David.Laight@aculab.com>,
"NXP Linux Team" <linux-imx@nxp.com>,
"Pengutronix Kernel Team" <kernel@pengutronix.de>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
stable@vger.kernel.org, "Shawn Guo" <shawnguo@kernel.org>,
linux-arm-kernel@lists.infradead.org, linux-i2c@vger.kernel.org
Subject: Re: [PATCH v6 2/3] i2c: imx: Check for I2SR_IAL after every byte
Date: Sat, 10 Oct 2020 13:09:27 +0200 [thread overview]
Message-ID: <20201010110927.GC4669@ninjato> (raw)
In-Reply-To: <20201009110320.20832-3-ceggers@arri.de>
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On Fri, Oct 09, 2020 at 01:03:19PM +0200, Christian Eggers wrote:
> Arbitration Lost (IAL) can happen after every single byte transfer. If
> arbitration is lost, the I2C hardware will autonomously switch from
> master mode to slave. If a transfer is not aborted in this state,
> consecutive transfers will not be executed by the hardware and will
> timeout.
>
> Signed-off-by: Christian Eggers <ceggers@arri.de>
> Tested (not extensively) on Vybrid VF500 (Toradex VF50):
> Tested-by: Krzysztof Kozlowski <krzk@kernel.org>
> Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
> Cc: stable@vger.kernel.org
Applied to for-next, thanks!
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next prev parent reply other threads:[~2020-10-10 23:07 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-09 11:03 [PATCH v6 0/3] i2c: imx: Fix handling of arbitration loss Christian Eggers
2020-10-09 11:03 ` Christian Eggers
2020-10-09 11:03 ` [PATCH v6 1/3] i2c: imx: Fix reset of I2SR_IAL flag Christian Eggers
2020-10-09 11:03 ` Christian Eggers
2020-10-10 11:09 ` Wolfram Sang
2020-10-10 11:09 ` Wolfram Sang
2020-12-01 7:34 ` Christian Eggers
2020-12-01 7:34 ` Christian Eggers
2020-12-02 15:04 ` Wolfram Sang
2020-12-02 15:04 ` Wolfram Sang
2020-10-09 11:03 ` [PATCH v6 2/3] i2c: imx: Check for I2SR_IAL after every byte Christian Eggers
2020-10-09 11:03 ` Christian Eggers
2020-10-10 11:09 ` Wolfram Sang [this message]
2020-10-10 11:09 ` Wolfram Sang
2020-10-09 11:03 ` [PATCH v6 3/3] i2c: imx: Don't generate STOP condition if arbitration has been lost Christian Eggers
2020-10-09 11:03 ` Christian Eggers
2020-10-10 11:09 ` Wolfram Sang
2020-10-10 11:09 ` Wolfram Sang
2020-10-10 11:06 ` [PATCH v6 0/3] i2c: imx: Fix handling of arbitration loss Wolfram Sang
2020-10-10 11:06 ` Wolfram Sang
2020-10-18 10:44 ` Christian Eggers
2020-10-18 10:44 ` Christian Eggers
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