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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-04-07 12:07:20 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-04-07 12:07:20 +0300
commitb3e3bf2ef2c74f5ce5c19510edbbb9bfc1d249c2 (patch)
tree0fb24ebf81227b9f05e44f717a8c4997d837b667 /drivers/tty/serial/fsl_lpuart.c
parentfbf47635315ab308c9b58a1ea0906e711a9228de (diff)
parentf22e6e847115abc3a0e2ad7bb18d243d42275af1 (diff)
downloadlinux-b3e3bf2ef2c74f5ce5c19510edbbb9bfc1d249c2.tar.xz
Merge 4.0-rc7 into tty-next
We want the fixes in here as well, also to help out with merge issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/fsl_lpuart.c')
-rw-r--r--drivers/tty/serial/fsl_lpuart.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 946273a0dec4..08ce76f4f261 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -921,6 +921,9 @@ static void lpuart_setup_watermark(struct lpuart_port *sport)
writeb(val | UARTPFIFO_TXFE | UARTPFIFO_RXFE,
sport->port.membase + UARTPFIFO);
+ /* explicitly clear RDRF */
+ readb(sport->port.membase + UARTSR1);
+
/* flush Tx and Rx FIFO */
writeb(UARTCFIFO_TXFLUSH | UARTCFIFO_RXFLUSH,
sport->port.membase + UARTCFIFO);
@@ -1076,6 +1079,8 @@ static int lpuart_startup(struct uart_port *port)
sport->txfifo_size = 0x1 << (((temp >> UARTPFIFO_TXSIZE_OFF) &
UARTPFIFO_FIFOSIZE_MASK) + 1);
+ sport->port.fifosize = sport->txfifo_size;
+
sport->rxfifo_size = 0x1 << (((temp >> UARTPFIFO_RXSIZE_OFF) &
UARTPFIFO_FIFOSIZE_MASK) + 1);