From: Wolfram Sang <wsa@the-dreams.de>
To: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Cc: devicetree@vger.kernel.org, alexandre.belloni@bootlin.com,
kamel.bouhara@bootlin.com, linux-kernel@vger.kernel.org,
Ludovic.Desroches@microchip.com, linux-i2c@vger.kernel.org,
peda@axentia.se, linux@armlinux.org.uk, robh@kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 2/6] i2c: at91: implement i2c bus recovery
Date: Sat, 22 Feb 2020 12:33:58 +0100 [thread overview]
Message-ID: <20200222113358.GB1716@kunai> (raw)
In-Reply-To: <20200115115422.17097-3-codrin.ciubotariu@microchip.com>
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On Wed, Jan 15, 2020 at 01:54:18PM +0200, Codrin Ciubotariu wrote:
> From: Kamel Bouhara <kamel.bouhara@bootlin.com>
>
> Implement i2c bus recovery when slaves devices might hold SDA low.
> In this case re-assign SCL/SDA to gpios and issue 9 dummy clock pulses
> until the slave release SDA.
>
> Signed-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com>
> Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Applied to for-next, thanks!
The implementation is very similar to i2c-imx. Maybe we should move this
mechanism into the core somewhen...
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next prev parent reply other threads:[~2020-02-22 11:34 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-15 11:54 [PATCH v3 0/6] i2c bus recovery for Microchip SoCs Codrin Ciubotariu
2020-01-15 11:54 ` [PATCH v3 1/6] dt-bindings: i2c: at91: document optional bus recovery properties Codrin Ciubotariu
2020-01-27 8:49 ` Ludovic Desroches
2020-02-22 11:33 ` Wolfram Sang
2020-01-15 11:54 ` [PATCH v3 2/6] i2c: at91: implement i2c bus recovery Codrin Ciubotariu
2020-01-27 8:50 ` Ludovic Desroches
2020-02-22 11:33 ` Wolfram Sang [this message]
2020-01-15 11:54 ` [PATCH v3 3/6] i2c: at91: Send bus clear command if SDA is down Codrin Ciubotariu
2020-01-27 8:54 ` Ludovic Desroches
2020-02-22 11:44 ` Wolfram Sang
2020-01-15 11:54 ` [PATCH v3 4/6] ARM: at91/dt: sama5d3: add i2c gpio pinctrl Codrin Ciubotariu
2020-01-27 8:55 ` Ludovic Desroches
2020-01-15 11:54 ` [PATCH v3 5/6] ARM: at91/dt: sama5d4: " Codrin Ciubotariu
2020-01-27 8:56 ` Ludovic Desroches
2020-01-15 11:54 ` [PATCH v3 6/6] ARM: at91/dt: sama5d2: " Codrin Ciubotariu
2020-01-27 8:57 ` Ludovic Desroches
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