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> Reviewed-by: Simon Horman <horms+rene...@verge.net.au> Acked-by: Sergei Shtylyov <sergei.shtyl...@cogentembedded.com> Reviewed-by: Rob Herring <r...@kernel.org> --- v2: - Add Reviewed-by, Acked-by, - Add R-Car M3-N. --- Documentation/devicetree/bindings/net/renesas,ravb.txt | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/net/renesas,ravb.txt b/Documentation/devicetree/bindings/net/renesas,ravb.txt index bf071a58f2926ad3..2b5cb655b0e93bfd 100644 --- a/Documentation/devicetree/bindings/net/renesas,ravb.txt +++ b/Documentation/devicetree/bindings/net/renesas,ravb.txt @@ -27,7 +27,11 @@ 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 and RZ/G1 SoCs, and on R-Car H3 (R8A7795), M3-W (R8A7796), + and M3-N (R8A77965). - 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