serial: ifx6x60: ifx_spi_write don't need to do mrdy_assert when fifo is not empty

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This patch check whether the fifo lenth is empty before writing new data to fifo.If condition
is true,ifx_spi_write need to trigger one mrdy_assert. If condition is false,the mrdy_assert
will be trigger by the next ifx_spi_io.

Cc: Bi Chao <chao.bi@intel.com>
Signed-off-by: Chen Jun <jun.d.chen@intel.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Jun Chen 2012-11-07 12:04:04 -05:00 • committed by Greg Kroah-Hartman

parent 1b2f8a9550

commit e8823f1ca8

1 changed files with 10 additions and 3 deletions

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drivers/tty/serial/ifx6x60.c

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