spi: wait for end of transfer before returning from spi_transfer() #1312
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This guarantee to application that transfer is finished, and avoid for example that application releases NSS pin while transfer is still ongoing. Signed-off-by: Alexandre Bourdiol <alexandre.bourdiol@st.com>
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Summary
spi: wait for end of transfer before returning from spi_transfer()
This guarantee to application that transfer is finished,
and avoid for example that application releases NSS pin
while transfer is still ongoing.