[PATCH 13/18] spi: stm32h7: fix handling of dma transfer completed

[Mark Brown]

On Wed, Aug 05, 2020 at 09:02:08AM +0200, Alain Volmat wrote:
> From: Amelie Delaunay <amelie.delaunay at st.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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