[PATCH] spi: efm32: properly namespace location property

[Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>]

While reviewing an i2c driver for efm32 that needs a similar property
Wolfram Sang pointed out that "location" is a too generic name for something
that is efm32 specific. So add an appropriate namespace and fall back to the
generic name in case of failure.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
---
 drivers/spi/spi-efm32.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-efm32.c b/drivers/spi/spi-efm32.c
index d4d3cc534792..daa73358f92d 100644
--- a/drivers/spi/spi-efm32.c
+++ b/drivers/spi/spi-efm32.c
@@ -297,7 +297,10 @@ static int efm32_spi_probe_dt(struct platform_device *pdev,
 	if (!np)
 		return 1;
 
-	ret = of_property_read_u32(np, "location", &location);
+	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) {
 		dev_dbg(&pdev->dev, "using location %u\n", location);
 	} else {
-- 
1.9.0

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