Commit graph

3 commits

Author SHA1 Message Date
Marek Behún
8e6eda7cda drivers/i2c/muxes/pca954x: Add pca9547 I2C mux support
This I2C mux is found, for example, on the Turris Omnia board.

Signed-off-by: Marek Behun <marek.behun@nic.cz>
Reviewed-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
2017-07-12 06:56:48 +02:00
Simon Glass
e160f7d430 dm: core: Replace of_offset with accessor
At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree, which uses a node pointer instead, refactor existing code to
access this field through an inline function.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-02-08 06:12:14 -07:00
Michal Simek
d79ac32478 i2c: muxes: Add support for TI PCA954X mux
Add support for common TI i2c mux which is available on ZynqMP zcu102
board.
DM i2c mux core code is selecting/deselecting bus before/after
every command is performed that's why only one channel is active at a
time. That's also the reason why deselect is just disable all available
channels.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-17 08:28:50 +02:00