• Simon Glass's avatar
    input: matrix-keymap: Add function to read the new DT binding · 43840415
    Simon Glass authored
    We now have a binding which adds two parameters to the matrix keypad DT
    node. This is separate from the GPIO-driven matrix keypad binding, and
    unfortunately incompatible, since that uses row-gpios/col-gpios for the
    row and column counts.
    
    So the easiest option here is to provide a function for non-GPIO drivers
    to use to decode the binding.
    
    Note: We could in fact create an entirely separate structure to hold
    these two fields, but it does not seem worth it, yet. If we have more
    parameters then we can add this, and then refactor each driver to hold
    such a structure.
    Signed-off-by: default avatarSimon Glass <sjg@chromium.org>
    Acked-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
    Tested-by: Sourav Poddar <sourav.poddar@ti.com> (v2)
    Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
    43840415
omap4-keypad.c 11.5 KB