[PATCH v1 1/2] dt-bindings: trivial-devices: add toradex,lava-hat-spi

[Francesco Dolcini <francesco@dolcini.it>]

From: Francesco Dolcini <francesco.dolcini@toradex.com>

Add a compatible string for the SPI loopback device present on the
Toradex LAVA HAT test fixture.

The Toradex LAVA HAT is a board used for automated hardware-in-the-loop
(HIL) testing, it provides several test-related functionalities, and
exists in multiple variants depending on the board it is mated with. The
SPI function is implemented with a loopback on the MISO/MOSI signals.

As the device can be fully described using only "compatible" and "reg",
it is appropriate to list it under trivial-devices.yaml rather than
introducing a dedicated binding.

The SPI implementation is identical across all Toradex LAVA HAT
variants, so a single compatible string is sufficient.

Link: https://lore.kernel.org/all/20260310133254.GA51497@francesco-nb/
Link: https://lore.kernel.org/all/20260316073547.11437-3-francesco@dolcini.it/
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
---
 Documentation/devicetree/bindings/trivial-devices.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
index 23fd4513933a..95e78ff804af 100644
--- a/Documentation/devicetree/bindings/trivial-devices.yaml
+++ b/Documentation/devicetree/bindings/trivial-devices.yaml
@@ -519,6 +519,8 @@ properties:
           - ti,tps546d24
             # I2C Touch-Screen Controller
           - ti,tsc2003
+            # Toradex Lava Hat SPI
+          - toradex,lava-hat-spi
             # Winbond/Nuvoton H/W Monitor
           - winbond,w83793
 
-- 
2.47.3