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Subject[PATCH v3 0/2] spi: support inter-word delays
Changed in v3:
* Drop setting of inter-word delay via device tree

Changed in v2:
* Fix atmel-spi driver to not unconditionally set minimal delay if no
delay is required (erroneous clamping)

This short series adds support for SPI inter-word delays and configures
the spi-atmel driver to honour the setting.

Some SPI slaves are so slow that they are unable to keep up even at the
SPI controller's lowest available clock frequency. I have such a
configuration where an AVR-based SPI slave is unable to feed the SPI bus
fast enough even the SPI master runs at the lowest possible clock speed.

Jonas Bonn (2):
spi: support inter-word delay requirement for devices
spi-atmel: support inter-word delay

drivers/spi/spi-atmel.c | 18 +++++++++++++-----
include/linux/spi/spi.h | 3 +++
2 files changed, 16 insertions(+), 5 deletions(-)


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