[PATCH 0/2] spi: ar934x: fix transfer size and delays

From: Oskari Lemmela
Date: Wed Dec 22 2021 - 01:07:52 EST


Some of slow SPI devices can not handle 32 bits transfers or need
delay between words/transfers.

Series is tested with ATSAMD20J15 slave device which is running @8Mhz.
Limiting bits per word to 16 bits and adding delay between transfers,
gives slave device enough extra time to process reply.

Oskari Lemmela (2):
spi: ar934x: fix transfer size
spi: ar934x: fix transfer and word delays

drivers/spi/spi-ar934x.c | 18 +++++++++++++-----
1 file changed, 13 insertions(+), 5 deletions(-)

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2.25.1