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The chip provides all the needed bits in the URXD0 register that we read anyway for data, so get rid of reading USR2 and use only URXD0 bits instead. Signed-off-by: Sergey Organov <sorganov@gmail.com> Link: https://lore.kernel.org/r/20230201142700.4346-7-sorganov@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>