linux-kernel - Re: [PATCH 6/8] net: mdio: ipq4019: support reset control

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Message-ID: <9ac4b153-2318-4d69-9771-1b3365104904@lunn.ch>
Date: Sun, 21 Jan 2024 17:35:41 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Ziyang Huang <hzyitc@...look.com>
Cc: mcoquelin.stm32@...il.com, alexandre.torgue@...s.st.com,
	richardcochran@...il.com, p.zabel@...gutronix.de,
	matthias.bgg@...il.com, angelogioacchino.delregno@...labora.com,
	linux-kernel@...r.kernel.org,
	linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org, netdev@...r.kernel.org,
	linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH 6/8] net: mdio: ipq4019: support reset control

On Sun, Jan 21, 2024 at 08:42:35PM +0800, Ziyang Huang wrote:

In this case, you need to document why the MDIO core reset controller
code does not work for you.

You are also missing the device tree binding again.

> @@ -248,6 +254,10 @@ static int ipq4019_mdio_probe(struct platform_device *pdev)
>  	if (IS_ERR(priv->membase))
>  		return PTR_ERR(priv->membase);
>  
> +	priv->rst = devm_reset_control_array_get_optional_exclusive(&pdev->dev);
> +	if (IS_ERR(priv->rst))
> +		return PTR_ERR(priv->rst);

How many resets does this MDIO controller have? Would
devm_reset_control_get_optional_exclusive() be sufficient.


    Andrew

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