linux-stable/drivers/pinctrl/aspeed
Andrew Jeffery 8eb37aff76 pinctrl: aspeed-g5: Fix pin association of SPI1 function
The SPI1 function was associated with the wrong pins: The functions that
those pins provide is either an SPI debug or passthrough function
coupled to SPI1. Make the SPI1 mux function configure the relevant pins
and associate new SPI1DEBUG and SPI1PASSTHRU functions with the pins
that were already defined.

The notation used in the datasheet's multi-function pin table for the SoC is
often creative: in this case the SYS* signals are enabled by a single bit,
which is nothing unusual on its own, but in this case the bit was also
participating in a multi-bit bitfield and therefore represented multiple
functions. This fact was overlooked in the original patch.

Fixes: 56e57cb6c0 (pinctrl: Add pinctrl-aspeed-g5 driver)
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-10-18 14:36:12 +02:00
..
Kconfig pinctrl: Add pinctrl-aspeed-g5 driver 2016-09-07 16:53:37 +02:00
Makefile pinctrl: Add pinctrl-aspeed-g5 driver 2016-09-07 16:53:37 +02:00
pinctrl-aspeed-g4.c
pinctrl-aspeed-g5.c pinctrl: aspeed-g5: Fix pin association of SPI1 function 2016-10-18 14:36:12 +02:00
pinctrl-aspeed.c pinctrl: aspeed: "Not enabled" is a significant mux state 2016-10-18 14:36:10 +02:00
pinctrl-aspeed.h