serial: imx: remove unneeded imx_transmit_buffer() from imx_start_tx()
authorDirk Behme <dirk.behme@de.bosch.com>
Tue, 9 Dec 2014 09:11:24 +0000 (18:11 +0900)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 9 Jan 2015 22:23:07 +0000 (14:23 -0800)
commit55c3cb1358e57280c54e3578afc76ce8190dd087
tree521642ea7e22099e5149a5fc7ec6deb3a7488506
parent73631813c1ed17437e9de86f82a477fa4bac90c1
serial: imx: remove unneeded imx_transmit_buffer() from imx_start_tx()

Use imx_start_tx() just to enable the TX interrupt. It's the job of the
TX interrupt ISR to fill the transmit buffer, then. If the transmit buffer
is empty, the TX interrupt should be executed as soon as the start_tx()
enables the interrupt, so there is no reason for the extra
imx_transmit_buffer() call, here. Remove it.

Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Andy Lowe <andy_lowe@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/imx.c