[PATCH] serial/imx: add of_alias_get_id() reference back

From: Shawn Guo
Date: Thu Sep 22 2011 - 02:38:43 EST


As of_alias_get_id() gets fixed and ready for use, the patch adds the
of_alias_get_id() reference back to imx serial driver.

Signed-off-by: Shawn Guo <shawn.guo@xxxxxxxxxx>
---
drivers/tty/serial/imx.c | 13 +++++++++----
1 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 4a36470..b550cff 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1318,17 +1318,22 @@ static int serial_imx_resume(struct platform_device *dev)
static int serial_imx_probe_dt(struct imx_port *sport,
struct platform_device *pdev)
{
- static int portnum = 0;
struct device_node *np = pdev->dev.of_node;
const struct of_device_id *of_id =
of_match_device(imx_uart_dt_ids, &pdev->dev);
+ int ret;

if (!np)
return -ENODEV;

- sport->port.line = portnum++;
- if (sport->port.line >= UART_NR)
- return -EINVAL;
+ ret = of_alias_get_id(np, "serial");
+ if (ret < 0) {
+ pr_err("%s: failed to get alias id, errno %d\n",
+ __func__, ret);
+ return -ENODEV;
+ } else {
+ sport->port.line = ret;
+ }

if (of_get_property(np, "fsl,uart-has-rtscts", NULL))
sport->have_rtscts = 1;
--
1.7.4.1


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