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-rw-r--r--drivers/tty/serial/msm_serial.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index b507f5a16c1c..09364dd8cf3a 100644
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -1044,17 +1044,22 @@ static int msm_serial_probe(struct platform_device *pdev)
struct resource *resource;
struct uart_port *port;
const struct of_device_id *id;
- int irq;
+ int irq, line;
if (pdev->id == -1)
pdev->id = atomic_inc_return(&msm_uart_next_id) - 1;
- if (unlikely(pdev->id < 0 || pdev->id >= UART_NR))
+ if (pdev->dev.of_node)
+ line = of_alias_get_id(pdev->dev.of_node, "serial");
+ else
+ line = pdev->id;
+
+ if (unlikely(line < 0 || line >= UART_NR))
return -ENXIO;
- dev_info(&pdev->dev, "msm_serial: detected port #%d\n", pdev->id);
+ dev_info(&pdev->dev, "msm_serial: detected port #%d\n", line);
- port = get_port_from_line(pdev->id);
+ port = get_port_from_line(line);
port->dev = &pdev->dev;
msm_port = UART_TO_MSM(port);