Prepare for 8250 split; move default dma tx/rx handler initialization
into serial8250_set_defaults(), which allows default dma ops to
remain unexported from the base port operations module after the split.
Signed-off-by: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx>
---
drivers/tty/serial/8250/8250_core.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index f06bdea..397c220 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -3161,6 +3161,14 @@ static void serial8250_set_defaults(struct uart_8250_port *up)
}
set_io_from_upio(port);
+
+ /* default dma handlers */
+ if (up->dma) {
+ if (!up->dma->tx_dma)
+ up->dma->tx_dma = serial8250_tx_dma;
+ if (!up->dma->rx_dma)
+ up->dma->rx_dma = serial8250_rx_dma;
+ }
}
static void __init serial8250_isa_init_ports(void)
@@ -3742,6 +3750,7 @@ int serial8250_register_8250_port(struct uart_8250_port *up)
uart->port.unthrottle = up->port.unthrottle;
uart->port.rs485_config = up->port.rs485_config;
uart->port.rs485 = up->port.rs485;
+ uart->dma = up->dma;
/* Take tx_loadsz from fifosize if it wasn't set separately */
if (uart->port.fifosize && !uart->tx_loadsz)
@@ -3782,13 +3791,6 @@ int serial8250_register_8250_port(struct uart_8250_port *up)
uart->dl_read = up->dl_read;
if (up->dl_write)
uart->dl_write = up->dl_write;
- if (up->dma) {
- uart->dma = up->dma;
- if (!uart->dma->tx_dma)
- uart->dma->tx_dma = serial8250_tx_dma;
- if (!uart->dma->rx_dma)
- uart->dma->rx_dma = serial8250_rx_dma;
- }
if (serial8250_isa_config != NULL)
serial8250_isa_config(0, &uart->port,
--
2.3.0
--
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