[PATCH 0/4] spi: A better solution for cros_ec_spi reliability

From: Douglas Anderson
Date: Fri May 10 2019 - 18:36:35 EST

This series is a much better solution for getting the Chrome OS EC to
talk reliably and replaces commit 37a186225a0c ("platform/chrome:
cros_ec_spi: Transfer messages at high priority").

Note that the cros_ec bits can't land until the SPI bits are
somewhere. If the SPI bits look OK to land it might be convenient if
they could be placed somewhere with a stable git hash?

Special thanks to Guenter Roeck for pointing out the "realtime"
feature of the SPI framework so I didn't re-invent the wheel. I have
no idea how I missed it. :-/

Douglas Anderson (4):
spi: For controllers that need realtime always use the pump thread
spi: Allow SPI devices to specify that they are timing sensitive
platform/chrome: cros_ec_spi: Set ourselves as timing sensitive
Revert "platform/chrome: cros_ec_spi: Transfer messages at high

drivers/platform/chrome/cros_ec_spi.c | 81 +++------------------------
drivers/spi/spi.c | 41 +++++++++++---
include/linux/spi/spi.h | 3 +
3 files changed, 43 insertions(+), 82 deletions(-)