[PATCH] serial: efm32: correct namespacing of location property

[Uwe Kleine-König]

Olof Johansson pointed out that usually the company name is picked as
namespace prefix to specific properties. So expect "energymicro,location"
but fall back to the previously introduced name "efm32,location".

Cc: Olof Johansson <olof at lixom.net>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
---
 Documentation/devicetree/bindings/serial/efm32-uart.txt | 4 ++--
 drivers/tty/serial/efm32-uart.c                         | 8 +++++++-
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/serial/efm32-uart.txt b/Documentation/devicetree/bindings/serial/efm32-uart.txt
index 3ca01336b837..8adbab268ca3 100644
--- a/Documentation/devicetree/bindings/serial/efm32-uart.txt
+++ b/Documentation/devicetree/bindings/serial/efm32-uart.txt
@@ -6,7 +6,7 @@ Required properties:
 - interrupts : Should contain uart interrupt
 
 Optional properties:
-- efm32,location : Decides the location of the USART I/O pins.
+- energymicro,location : Decides the location of the USART I/O pins.
   Allowed range : [0 .. 5]
   Default: 0
 
@@ -16,5 +16,5 @@ uart at 0x4000c400 {
 	compatible = "energymicro,efm32-uart";
 	reg = <0x4000c400 0x400>;
 	interrupts = <15>;
-	efm32,location = <0>;
+	energymicro,location = <0>;
 };
diff --git a/drivers/tty/serial/efm32-uart.c b/drivers/tty/serial/efm32-uart.c
index 3b0ee9afd76f..cb007a4f4d15 100644
--- a/drivers/tty/serial/efm32-uart.c
+++ b/drivers/tty/serial/efm32-uart.c
@@ -671,10 +671,16 @@ static int efm32_uart_probe_dt(struct platform_device *pdev,
 	if (!np)
 		return 1;
 
-	ret = of_property_read_u32(np, "efm32,location", &location);
+	ret = of_property_read_u32(np, "energymicro,location", &location);
+
+	if (ret)
+		/* fall back to wrongly namespaced property */
+		ret = of_property_read_u32(np, "efm32,location", &location);
+
 	if (ret)
 		/* fall back to old and (wrongly) generic property "location" */
 		ret = of_property_read_u32(np, "location", &location);
+
 	if (!ret) {
 		if (location > 5) {
 			dev_err(&pdev->dev, "invalid location\n");
-- 
2.0.0