diff options
| author | Stefan Agner <stefan@agner.ch> | 2015-01-26 14:47:10 +0100 |
|---|---|---|
| committer | Stefan Agner <stefan.agner@toradex.com> | 2015-01-26 14:48:53 +0100 |
| commit | 5c9c1b41d2c9c7062b70adaaf899205e89c4ef84 (patch) | |
| tree | a3afabc5300c9a773d83cf21634abe220bd84f95 | |
| parent | 5be987d971863123d5e2ae5514ae543656bb42d6 (diff) | |
tty: serial: fsl_lpuart: specify transmit FIFO size
Specify transmit FIFO size which might be different depending on
LPUART instance. This makes sure uart_wait_until_sent in serial
core getting called, which in turn waits and checks if the FIFO
is really empty on shutdown by using the tx_empty callback.
Without this functionality, the last several characters might not
be transmitted when closing the serial port, e.g. using a simple
echo redirected to a ttyLP device.
| -rw-r--r-- | drivers/tty/serial/fsl_lpuart.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 316cbbdcd198..6c154747d23f 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -1076,6 +1076,8 @@ 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); |