Re: [PATCH v5.4] i2c: imx: Check for I2SR_IAL after every byte

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On Wed, Dec 09, 2020 at 10:34:31AM +0100, Christian Eggers wrote:
> commit 1de67a3dee7a279ebe4d892b359fe3696938ec15 upstream.
> 
> 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@xxxxxxx>
> Tested (not extensively) on Vybrid VF500 (Toradex VF50):
> Tested-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
> Acked-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
> ---
> Hi Greg,
> 
> here is the patch for linux-5.4. Please let me know if this doesn't apply to
> older kernels.

That worked everywhere, thanks.

greg k-h



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