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Message-ID: <Z9ghgq8zlXKsVjOW@pengutronix.de>
Date: Mon, 17 Mar 2025 14:20:02 +0100
From: Oleksij Rempel <o.rempel@...gutronix.de>
To: Kory Maincent <kory.maincent@...tlin.com>
Cc: Andrew Lunn <andrew@...n.ch>, "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Jonathan Corbet <corbet@....net>,
	Donald Hunter <donald.hunter@...il.com>,
	Rob Herring <robh@...nel.org>, Andrew Lunn <andrew+netdev@...n.ch>,
	Simon Horman <horms@...nel.org>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	netdev@...r.kernel.org, linux-doc@...r.kernel.org,
	Kyle Swenson <kyle.swenson@....tech>,
	Dent Project <dentproject@...uxfoundation.org>,
	kernel@...gutronix.de,
	Maxime Chevallier <maxime.chevallier@...tlin.com>,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v6 08/12] net: pse-pd: pd692x0: Add support for
 PSE PI priority feature

On Tue, Mar 04, 2025 at 11:18:57AM +0100, Kory Maincent wrote:
>  static u8 pd692x0_build_msg(struct pd692x0_msg *msg, u8 echo)
> @@ -739,6 +755,29 @@ pd692x0_pi_get_actual_pw(struct pse_controller_dev *pcdev, int id)
>  	return (buf.data[0] << 4 | buf.data[1]) * 100;
>  }
>  
> +static int
> +pd692x0_pi_get_prio(struct pse_controller_dev *pcdev, int id)
> +{
> +	struct pd692x0_priv *priv = to_pd692x0_priv(pcdev);
> +	struct pd692x0_msg msg, buf = {0};
> +	int ret;
> +
> +	ret = pd692x0_fw_unavailable(priv);
> +	if (ret)
> +		return ret;
> +
> +	msg = pd692x0_msg_template_list[PD692X0_MSG_GET_PORT_PARAM];
> +	msg.sub[2] = id;
> +	ret = pd692x0_sendrecv_msg(priv, &msg, &buf);
> +	if (ret < 0)
> +		return ret;
> +	if (buf.data[2] < 1 || 3 < buf.data[2])

if (!buf.data[2] || buf.data[2] > pcdev->pis_prio_max + 1)


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