From: Jun Chen <jun.d.chen@intel.com>
Date: Wed, 7 Nov 2012 17:04:04 +0000 (-0500)
Subject: serial: ifx6x60: ifx_spi_write don't need to do mrdy_assert when fifo is not empty
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~83^2~73
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e8823f1ca8d5a0c5d69a8862682ee8bde26990ca;p=pandora-kernel.git

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

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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