From: Jonas Rebmann Date: Wed, 24 Sep 2025 08:34:12 +0000 (+0200) Subject: dt-bindings: net: dsa: nxp,sja1105: Add reset-gpios property X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=8d5868f8c1b27e99b35d200b5ed2dfe12586e936;p=users%2Fhch%2Fmisc.git dt-bindings: net: dsa: nxp,sja1105: Add reset-gpios property 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 Reviewed-by: Rob Herring (Arm) Reviewed-by: Frank Li Signed-off-by: Jonas Rebmann Link: https://patch.msgid.link/20250924-imx8mp-prt8ml-v3-1-f498d7f71a94@pengutronix.de Signed-off-by: Jakub Kicinski --- 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