linux-kernel - Re: [PATCH 13/18] spi: stm32h7: fix handling of dma transfer completed

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Message-ID: <20200805110205.GH5556@sirena.org.uk>
Date:   Wed, 5 Aug 2020 12:02:05 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Alain Volmat <alain.volmat@...com>
Cc:     amelie.delaunay@...com, mcoquelin.stm32@...il.com,
        alexandre.torgue@...com, linux-spi@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        fabrice.gasnier@...com
Subject: Re: [PATCH 13/18] spi: stm32h7: fix handling of dma transfer
 completed

On Wed, Aug 05, 2020 at 09:02:08AM +0200, Alain Volmat wrote:
> From: Amelie Delaunay <amelie.delaunay@...com>
> 
> The rx dma is completed "after" the last data is received
> from spi. Thus, to avoid loss of rx data, it's mandatory to
> wait for the dma callback before tearing down the rx dma in
> stm32_spi_disable().

Again, please put fixes at the start of the series before new
development.

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