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

Frank Li
2025-09-18T15:33:00Z

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 <jre@pengutronix.de>

Reviewed-by: Frank Li <Frank.Li@nxp.com>

> ---
> 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
>