netdev - Re: [PATCH v1 4/7] net: phy: motorcomm: Add YT8531 phy support

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Date:   Thu, 1 Dec 2022 16:40:21 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Yanhong Wang <yanhong.wang@...rfivetech.com>
Cc:     linux-riscv@...ts.infradead.org, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Emil Renner Berthing <kernel@...il.dk>,
        Richard Cochran <richardcochran@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Peter Geis <pgwipeout@...il.com>
Subject: Re: [PATCH v1 4/7] net: phy: motorcomm: Add YT8531 phy support

> +static const struct ytphy_reg_field ytphy_rxtxd_grp[] = {
> +	{ "rx_delay_sel", GENMASK(13, 10), 0x0 },
> +	{ "tx_delay_sel_fe", GENMASK(7, 4), 0xf },
> +	{ "tx_delay_sel", GENMASK(3, 0), 0x1 }
> +};
> +
> +static const struct ytphy_reg_field ytphy_txinver_grp[] = {
> +	{ "tx_inverted_1000", BIT(14), 0x0 },
> +	{ "tx_inverted_100", BIT(14), 0x0 },
> +	{ "tx_inverted_10", BIT(14), 0x0 }
> +};
> +
> +static const struct ytphy_reg_field ytphy_rxden_grp[] = {
> +	{ "rxc_dly_en", BIT(8), 0x1 }
> +};
> +
> +static int ytphy_config_init(struct phy_device *phydev)
> +{
> +	struct device_node *of_node;
> +	u32 val;
> +	u32 mask;
> +	u32 cfg;
> +	int ret;
> +	int i = 0;
> +
> +	of_node = phydev->mdio.dev.of_node;
> +	if (of_node) {
> +		ret = of_property_read_u32(of_node, ytphy_rxden_grp[0].name, &cfg);

You need to document the device tree binding.

Frank Sae always gets the locking wrong in this driver. Have you
tested your patch with lockdep enabled?

    Andrew