From 8687634b7908c42eb700e0469e110e02833611d1 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Mon, 11 May 2015 13:00:31 +0200 Subject: [PATCH] tty/serial: at91: RS485 mode: 0 is valid for delay_rts_after_send MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit In RS485 mode, we may want to set the delay_rts_after_send value to 0. In the datasheet, the 0 value is said to "disable" the Transmitter Timeguard but this is exactly the expected behavior if we want no delay... Moreover, if the value was set to non-zero value by device-tree or earlier ioctl command, it was impossible to change it back to zero. Reported-by: Sami Pietikäinen Signed-off-by: Nicolas Ferre Cc: stable@vger.kernel.org # 3.2+ Signed-off-by: Greg Kroah-Hartman --- Reading git-format-patch failed