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.
Acked-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
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
--
2.51.0.297.gca2559c1d6