linux-kernel - Re: [PATCH 3/4] i2c: stm32f7: stop dma transfer in case of NACK

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Message-ID: <YaXunKuYf9S4/GOr@ninjato>
Date:   Tue, 30 Nov 2021 10:27:56 +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 3/4] i2c: stm32f7: stop dma transfer in case of NACK

On Mon, Sep 20, 2021 at 05:21:31PM +0200, Alain Volmat wrote:
> In case of receiving a NACK, the dma transfer should be stopped
> to avoid feeding data into the FIFO.
> Also ensure to properly return the proper error code and avoid
> waiting for the end of the dma completion in case of
> error happening during the transmission.
> 
> Fixes: 7ecc8cfde553 ("i2c: i2c-stm32f7: Add DMA support")
> 
> Signed-off-by: Alain Volmat <alain.volmat@...s.st.com>

Applied to for-current, thanks!


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