From: Heikki Krogerus <heikki.kroge...@linux.intel.com>
Instead of assigning the dma member in dw8250_probe_of and
dw8250_probe_acpi separately, assigning it in dw8250_probe.
Signed-off-by: Heikki Krogerus <heikki.kroge...@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
(cherry picked from commit 2559318caa76028edc9c0553932a17139e6adc58)
Signed-off-by: Tan Jui Nee <jui.nee....@intel.com>
---
drivers/tty/serial/8250/8250_dw.c | 19 +++++++------------
1 file changed, 7 insertions(+), 12 deletions(-)
diff --git a/drivers/tty/serial/8250/8250_dw.c
b/drivers/tty/serial/8250/8250_dw.c
index 2611ee6..a606408 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -298,14 +298,6 @@ static int dw8250_probe_of(struct uart_port *p,
if (has_ucv)
dw8250_setup_port(up);
- /* if we have a valid fifosize, try hooking up DMA here */
- if (p->fifosize) {
- up->dma = &data->dma;
-
- up->dma->rxconf.src_maxburst = p->fifosize / 4;
- up->dma->txconf.dst_maxburst = p->fifosize / 4;
- }
-
/* get index of serial line, if found in DT aliases */
id = of_alias_get_id(np, "serial");
if (id >= 0)
@@ -344,10 +336,6 @@ static int dw8250_probe_acpi(struct uart_8250_port *up,
data->dma.fn = dw8250_idma_filter;
}
- up->dma = &data->dma;
- up->dma->rxconf.src_maxburst = p->fifosize / 4;
- up->dma->txconf.dst_maxburst = p->fifosize / 4;
-
up->port.set_termios = dw8250_set_termios;
return 0;
@@ -494,6 +482,13 @@ static int dw8250_probe(struct platform_device *pdev)
goto err_reset;
}
+ /* If we have a valid fifosize, try hooking up DMA */
+ if (p->fifosize) {
+ data->dma.rxconf.src_maxburst = p->fifosize / 4;
+ data->dma.txconf.dst_maxburst = p->fifosize / 4;
+ uart.dma = &data->dma;
+ }
+
data->line = serial8250_register_8250_port(&uart);
if (data->line < 0) {
err = data->line;
--
1.9.1
--
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