Currently, DMA properties on the DT are ignored when using the 8250_dw driver. With this patch, DMA will be used when available. Signed-off-by: Emilio López <emilio@xxxxxxxxxxxxx> --- drivers/tty/serial/8250/8250_dw.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c index ed31135..f75c0bf 100644 --- a/drivers/tty/serial/8250/8250_dw.c +++ b/drivers/tty/serial/8250/8250_dw.c @@ -222,6 +222,8 @@ static int dw8250_probe_of(struct uart_port *p, struct dw8250_data *data) { struct device_node *np = p->dev->of_node; + struct uart_8250_port *up = container_of(p, struct uart_8250_port, + port); u32 val; bool has_ucv = true; @@ -254,11 +256,14 @@ static int dw8250_probe_of(struct uart_port *p, } } if (has_ucv) - dw8250_setup_port(container_of(p, struct uart_8250_port, port)); + dw8250_setup_port(up); if (!of_property_read_u32(np, "reg-shift", &val)) p->regshift = val; + if (of_get_property(np, "dmas", NULL)) + up->dma = &data->dma; + /* clock got configured through clk api, all done */ if (p->uartclk) return 0; -- 2.0.0 -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html