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serial: efm32: correct namespacing of location property

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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");