[PATCH RFC] spi: efm32: Make "efm32,location" property optional

[Axel Lin <axel.lin@xxxxxxxxxx>]

The spi driver still works even if "efm32,location" property is not provided.
Thus make "efm32,location" property optional.

Signed-off-by: Axel Lin <axel.lin@xxxxxxxxxx>
---
 Documentation/devicetree/bindings/spi/efm32-spi.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/spi/efm32-spi.txt b/Documentation/devicetree/bindings/spi/efm32-spi.txt
index 8f081c9..33e6040 100644
--- a/Documentation/devicetree/bindings/spi/efm32-spi.txt
+++ b/Documentation/devicetree/bindings/spi/efm32-spi.txt
@@ -8,6 +8,8 @@ Required properties:
 - interrupts: pair specifying rx and tx irq
 - clocks: phandle to the spi clock
 - 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.
 
 Example:
-- 
1.8.3.2



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