diff options
| author | Peter Rosin <peda@axentia.se> | 2016-07-09 21:53:42 +0200 |
|---|---|---|
| committer | Peter Rosin <peda@axentia.se> | 2016-08-25 22:11:02 +0200 |
| commit | b2d57b56047b99f2992fc958d7ac5ead283e9088 (patch) | |
| tree | b5df552ab814d3c1fb852a941b361b767cf14015 /Documentation/men-chameleon-bus.txt | |
| parent | 8f7720b950cf42d316fe5b625867e163a260a83c (diff) | |
| download | linux-b2d57b56047b99f2992fc958d7ac5ead283e9088.tar.gz | |
i2c: mux: add support for 'i2c-mux', 'i2c-arb' and 'i2c-gate' DT subnodes
Backwards compatibility is preserved; the subnodes are in practice
optional.
However, the mux core needs to know what subnode it should examine, so add
a couple of new flags for i2c_mux_alloc for this purpose.
The rule is that if the mux core finds a 'reg' property in the appropriate
subnode, e.g. if 'reg' exists in the 'i2c-mux' subnode, then the mux core
will assume that this is an old style entry and not an i2c-mux subnode
(correspondingly for arbitrators and gates with 'i2c-arb' and 'i2c-gate').
Reviewed-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Peter Rosin <peda@axentia.se>
Diffstat (limited to 'Documentation/men-chameleon-bus.txt')
0 files changed, 0 insertions, 0 deletions