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authorLaurent Pinchart <laurentp@cse-semaphore.com>2008-07-02 10:58:45 +0200
committerKumar Gala <galak@kernel.crashing.org>2008-07-14 07:55:38 -0500
commitdc320815305c5f019672d144f4c4c2710ef7732e (patch)
treef0336cf4dcffb605b0e65b3a16e2d3f52bb2f6b8 /drivers/serial
parent2f3804edf971d2080243d2b4552bfd61ddfbf969 (diff)
cpm_uart: Support uart_wait_until_sent()
Set port->fifosize to the software FIFO size, and update the port timeout when the baud rate is modified. SCC ports have an optional 32 byte hardware FIFO which is currently not taken into account, as there is no documented way to check when the FIFO becomes empty. Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'drivers/serial')
-rw-r--r--[-rwxr-xr-x]drivers/serial/cpm_uart/cpm_uart_core.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c b/drivers/serial/cpm_uart/cpm_uart_core.c
index d389a76b4afb..abe129cc927a 100755..100644
--- a/drivers/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/serial/cpm_uart/cpm_uart_core.c
@@ -491,6 +491,11 @@ static void cpm_uart_set_termios(struct uart_port *port,
}
/*
+ * Update the timeout
+ */
+ uart_update_timeout(port, termios->c_cflag, baud);
+
+ /*
* Set up parity check flag
*/
#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
@@ -938,6 +943,7 @@ static int cpm_uart_init_port(struct device_node *np,
pinfo->port.type = PORT_CPM;
pinfo->port.ops = &cpm_uart_pops,
pinfo->port.iotype = UPIO_MEM;
+ pinfo->port.fifosize = pinfo->tx_nrfifos * pinfo->tx_fifosize;
spin_lock_init(&pinfo->port.lock);
pinfo->port.irq = of_irq_to_resource(np, 0, NULL);