• Peter Rosin's avatar
    i2c: mux: add support for 'i2c-mux', 'i2c-arb' and 'i2c-gate' DT subnodes · b2d57b56
    Peter Rosin authored
    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: default avatarWolfram Sang <wsa@the-dreams.de>
    Signed-off-by: Peter Rosin's avatarPeter Rosin <peda@axentia.se>
    b2d57b56
i2c-mux.h 2.29 KB