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 <[email protected]>
Signed-off-by: Uwe Kleine-König <[email protected]>
---
 Documentation/devicetree/bindings/spi/efm32-spi.txt | 13 +++++++------
 drivers/spi/spi-efm32.c                             |  8 +++++++-
 2 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/Documentation/devicetree/bindings/spi/efm32-spi.txt 
b/Documentation/devicetree/bindings/spi/efm32-spi.txt
index 130cd17e3680..750e29aff9bc 100644
--- a/Documentation/devicetree/bindings/spi/efm32-spi.txt
+++ b/Documentation/devicetree/bindings/spi/efm32-spi.txt
@@ -10,11 +10,12 @@ Required properties:
 - cs-gpios: see spi-bus.txt
 
 Recommended properties :
-- efm32,location: Value to write to the ROUTE register's LOCATION bitfield to
-                  configure the pinmux for the device, see datasheet for 
values.
-                  If "efm32,location" property is not provided, keeping what is
-                  already configured in the hardware, so its either the reset
-                  default 0 or whatever the bootloader did.
+- energymicro,location: Value to write to the ROUTE register's LOCATION
+                        bitfield to configure the pinmux for the device, see
+                        datasheet for values.
+                        If this property is not provided, keeping what is
+                        already configured in the hardware, so its either the
+                        reset default 0 or whatever the bootloader did.
 
 Example:
 
@@ -26,7 +27,7 @@ spi1: spi@0x4000c400 { /* USART1 */
        interrupts = <15 16>;
        clocks = <&cmu 20>;
        cs-gpios = <&gpio 51 1>; // D3
-       efm32,location = <1>;
+       energymicro,location = <1>;
        status = "ok";
 
        ks8851@0 {
diff --git a/drivers/spi/spi-efm32.c b/drivers/spi/spi-efm32.c
index be44a3eeb5e8..6caeb1cac0f3 100644
--- a/drivers/spi/spi-efm32.c
+++ b/drivers/spi/spi-efm32.c
@@ -294,10 +294,16 @@ static void efm32_spi_probe_dt(struct platform_device 
*pdev,
        u32 location;
        int ret;
 
-       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) {
                dev_dbg(&pdev->dev, "using location %u\n", location);
        } else {
-- 
2.0.0

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