linux-kernel - Re: [PATCH 1/4] i2c: stm32f7: flush TX FIFO upon transfer errors

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Message-ID: <YaTDr7tFo844UAIf@kunai>
Date:   Mon, 29 Nov 2021 13:12:31 +0100
From:   Wolfram Sang <wsa@...nel.org>
To:     Alain Volmat <alain.volmat@...s.st.com>
Cc:     pierre-yves.mordret@...s.st.com, alexandre.torgue@...s.st.com,
        linux-i2c@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        fabrice.gasnier@...s.st.com, amelie.delaunay@...s.st.com
Subject: Re: [PATCH 1/4] i2c: stm32f7: flush TX FIFO upon transfer errors

On Mon, Sep 20, 2021 at 05:21:29PM +0200, Alain Volmat wrote:
> While handling an error during transfer (ex: NACK), it could
> happen that the driver has already written data into TXDR
> before the transfer get stopped.
> This commit add TXDR Flush after end of transfer in case of error to
> avoid sending a wrong data on any other slave upon next transfer.
> 
> Fixes: aeb068c57214 ("i2c: i2c-stm32f7: add driver")
> 
> Signed-off-by: Alain Volmat <alain.volmat@...s.st.com>

Applied to for-current, thanks!


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