spi: dt-bindings: renesas,rzv2h-rspi: Document dmas property

Document the dmas property to state it must be specified as TX/RX DMA
specifier pairs.
This clarifies the expected ordering and improves binding readability
without changing behavior.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/ea6ed3b82c5a326732adfc0fcdb2922bfcad2591.1771344527.git.tommaso.merciai.xr@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml b/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml
index cf8b733b766d776cda21aeda14bcb95db90196d5..d6a5338d652150613c5b5884332d2ea2edee2d5e 100644 (file)
--- a/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml
+++ b/Documentation/devicetree/bindings/spi/renesas,rzv2h-rspi.yaml
@@ -60,6 +60,9 @@ properties:
   dmas:
     minItems: 2
     maxItems: 10
+    description:
+      Must contain a list of pairs of references to DMA specifiers, one for
+      transmission, and one for reception.
 
   dma-names:
     minItems: 2