mmc/sdio is an enumerable bus, so usually the os can find out which
device is attached without needing a compatible.
Sometimes it is desirable to have a mmc function node, without having
to make up an otherwise unused compatible for the node, so make
the compatible properties optional.
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
Documentation/devicetree/bindings/mmc/mmc.txt | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt
index ed23b9b..a96c338 100644
--- a/Documentation/devicetree/bindings/mmc/mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc.txt
@@ -98,11 +98,13 @@ Required host node properties when using function subnodes:
- #size-cells: should be zero.
Required function subnode properties:
-- compatible: name of SDIO function following generic names recommended practice
- reg: Must contain the SDIO function number of the function this subnode
describes. A value of 0 denotes the memory SD function, values from
1 to 7 denote the SDIO functions.
+Optional function subnode properties:
+- compatible: name of SDIO function following generic names recommended practice
+
Examples
--------
--
2.7.4
--
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