• Stephen Warren's avatar
    mfd: Always assign of_node in mfd_add_device() · a7c42b25
    Stephen Warren authored
    
    
    mfd_add_device() assigns .of_node in the device objects it creates only
    if the mfd_cell for the device has the .of_compatible field set and the
    DT node for the top-level MFD device contains a child whose compatible
    property matches the cell's .of_compatible field.
    
    This leaves .of_node unset in many cases. When this happens, entries in
    the DT /aliases property which refer to the top-level MFD DT node will
    never match the MFD child devices, hence causing the requested alias not
    to be honored.
    
    Solve this by setting each MFD child device's .of_node equal to the top-
    level MFD device's .of_node field in the cases where it would otherwise
    remain unset.
    
    The first use-case for this will be aliases for the TPS6586x's RTC
    device.
    Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
    Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
    a7c42b25
mfd-core.c 6.94 KB