Re: [PATCH v2 1/3] dt-bindings: net: dsa: nxp,sja1105: Add reset-gpios property
From: Frank Li <Frank.li@nxp.com>
Date: 2025-09-18 15:33:00
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imx, linux-arm-kernel, linux-devicetree, linux-sound, lkml
On Thu, Sep 18, 2025 at 02:19:44PM +0200, Jonas Rebmann wrote:
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 <redacted>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
quoted hunk ↗ jump to hunk
--- 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