The Stream Buffer for EtherAVB-IF (STBE) is an optional component, and
is not present on all SoCs.

Document this in the DT bindings, including a list of SoCs that do have
it.

Fixes: 785ec87483d1e24a ("ravb: document R8A77970 bindings")
Fixes: f231c4178a655b09 ("dt-bindings: net: renesas-ravb: Add support for 
R8A77995 RAVB")
Signed-off-by: Geert Uytterhoeven <geert+rene...@glider.be>
---
 Documentation/devicetree/bindings/net/renesas,ravb.txt | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/net/renesas,ravb.txt 
b/Documentation/devicetree/bindings/net/renesas,ravb.txt
index c902261893b913f5..296191c323a64403 100644
--- a/Documentation/devicetree/bindings/net/renesas,ravb.txt
+++ b/Documentation/devicetree/bindings/net/renesas,ravb.txt
@@ -26,7 +26,10 @@ Required properties:
        SoC-specific version corresponding to the platform first followed by
        the generic version.
 
-- reg: offset and length of (1) the register block and (2) the stream buffer.
+- reg: Offset and length of (1) the register block and (2) the stream buffer.
+       The region for the register block is mandatory.
+       The region for the stream buffer is optional, as it is only present on
+       R-Car Gen2, RZ/G1, and R-Car H3 and M3-W.
 - interrupts: A list of interrupt-specifiers, one for each entry in
              interrupt-names.
              If interrupt-names is not present, an interrupt specifier
-- 
2.7.4

Reply via email to