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serial: efm32: correct namespacing of location property 

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@lixom.net>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Uwe Kleine-König 2014-07-11 10:16:45 +02:00 committed by Greg Kroah-Hartman
parent 68252424a7
commit d36f47fa84
2 changed files with 9 additions and 3 deletions
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4
Documentation/devicetree/bindings/serial/efm32-uart.txt
View File

@ -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@0x4000c400 {
compatible = "energymicro,efm32-uart";
reg = <0x4000c400 0x400>;
interrupts = <15>;
efm32,location = <0>;
energymicro,location = <0>;
};

8
drivers/tty/serial/efm32-uart.c
View File

@ -665,10 +665,16 @@ 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");