• Mateusz Kulikowski's avatar
    usb: ulpi: Fix compile warning in read/write on 64-bit machines. · d3d844f8
    Mateusz Kulikowski authored
    ulpi_read and ulpi_write are used to read/write registers via ULPI bus.
    Code generates compilation warnings on 64-bit machines where pointer
    is cast to u32.
    
    This patch drops all but last 8 bits of register address.
    It is possible, because addresses on ULPI bus are 6- or 8-bit.
    
    It is not possible (according to ULPI 1.1 spec) to have more
    than 8-bit addressing.
    
    This patch should not cause regressions as all calls to
    ulpi_read/write use either structure pointer (@ address 0) or integer
    offsets cast to pointer - addresses requested are way below 8-bit range.
    Signed-off-by: default avatarMateusz Kulikowski <mateusz.kulikowski@gmail.com>
    Acked-by: default avatarMarek Vasut <marex@denx.de>
    d3d844f8
ulpi.h 9.49 KB