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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-04-14 18:44:38 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-04-14 18:44:38 -0700
commit2bb590b80b2f057d9277adc86a0858843d15fca6 (patch)
tree5938e2c0bc92c575a458f3118cf3a6b6e65d3d6c /drivers/tty/serial/omap-serial.c
parentc0e03084000a54d75d1440cce5b71aa9db5a5836 (diff)
parent41ef2d5678d83af030125550329b6ae8b74618fa (diff)
Merge 3.9-rc7 into staging-next
We want these fixes here. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/omap-serial.c')
-rw-r--r--drivers/tty/serial/omap-serial.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 4dc41408ecb..30d4f7a783c 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -886,6 +886,17 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
serial_out(up, UART_MCR, up->mcr | UART_MCR_TCRTLR);
/* FIFO ENABLE, DMA MODE */
+ up->scr |= OMAP_UART_SCR_RX_TRIG_GRANU1_MASK;
+ /*
+ * NOTE: Setting OMAP_UART_SCR_RX_TRIG_GRANU1_MASK
+ * sets Enables the granularity of 1 for TRIGGER RX
+ * level. Along with setting RX FIFO trigger level
+ * to 1 (as noted below, 16 characters) and TLR[3:0]
+ * to zero this will result RX FIFO threshold level
+ * to 1 character, instead of 16 as noted in comment
+ * below.
+ */
+
/* Set receive FIFO threshold to 16 characters and
* transmit FIFO threshold to 16 spaces
*/