From: Philippe Proulx Date: Wed, 23 Oct 2013 22:49:58 +0000 (-0400) Subject: serial: omap: improve RS-485 performance X-Git-Tag: omap-for-v3.13/fixes-for-merge-window-take2~63^2~4 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=018e7448f2b2beba4a58f4c7fe99a5b32542be4c;p=pandora-kernel.git serial: omap: improve RS-485 performance If RS-485 is enabled, make the OMAP UART fire THR interrupts when both TX FIFO and TX shift register are empty instead of polling the equivalent status bit. This removes the burst of interrupt requests seen at every end of transmission. Also: the comment said that the TX FIFO trigger level was set at 16 characters when it's 32 in reality. Signed-off-by: Philippe Proulx Signed-off-by: Greg Kroah-Hartman --- Reading git-diff-tree failed