[PATCH v2 1/3] dt-bindings: net: dsa: nxp,sja1105: Add reset-gpios property

Jonas Rebmann
2025-09-18T12:20:16Z

Both the nxp,sja1105 and the nxp,sja1110 series feature an active-low
reset pin, rendering reset-gpios a valid property for all of the
nxp,sja1105 family.

Signed-off-by: Jonas Rebmann <jre@pengutronix.de>
---
Documentation/devicetree/bindings/net/dsa/nxp,sja1105.yaml | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/dsa/nxp,sja1105.yaml b/Documentation/devicetree/bindings/net/dsa/nxp,sja1105.yaml
index 9432565f4f5d..e9dd914b0734 100644
--- a/Documentation/devicetree/bindings/net/dsa/nxp,sja1105.yaml
+++ b/Documentation/devicetree/bindings/net/dsa/nxp,sja1105.yaml
@@ -32,6 +32,15 @@ properties:
reg:
maxItems: 1

+ reset-gpios:
+ description:
+ A GPIO connected to the active-low RST_N pin of the SJA1105. Note that
+ reset of this chip is performed via SPI and the RST_N pin must be wired
+ to satisfy the power-up sequence documented in "SJA1105PQRS Application
+ Hints" (AH1704) sec. 2.4.4. Connecting the SJA1105 RST_N pin to a GPIO is
+ therefore discouraged.
+ maxItems: 1
+
spi-cpha: true
spi-cpol: true

--
2.51.0.178.g2462961280