linux-kernel - Re: [PATCH v4 2/2] net: phy: motorcomm: Add pad drive strength cfg support

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Message-ID: <3859b0f6-d31f-dbc3-833e-222eb6ca6b8c@starfivetech.com>
Date:   Mon, 17 Jul 2023 16:40:04 +0800
From:   Guo Samin <samin.guo@...rfivetech.com>
To:     Andrew Lunn <andrew@...n.ch>
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <netdev@...r.kernel.org>, Peter Geis <pgwipeout@...il.com>,
        Frank <Frank.Sae@...or-comm.com>,
        "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>,
        Conor Dooley <conor@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Yanhong Wang <yanhong.wang@...rfivetech.com>
Subject: Re: [PATCH v4 2/2] net: phy: motorcomm: Add pad drive strength cfg
 support



-------- 原始信息 --------
主题: Re: [PATCH v4 2/2] net: phy: motorcomm: Add pad drive strength cfg support
From: Andrew Lunn <andrew@...n.ch>
收件人: Samin Guo <samin.guo@...rfivetech.com>
日期: 2023/7/15

>> +static u32 yt8531_get_ds_map(struct phy_device *phydev, u32 cur)
>> +{
>> +	u32 vol;
>> +	int i;
>> +
>> +	vol = yt8531_get_ldo_vol(phydev);
>> +	for (i = 0; i < ARRAY_SIZE(yt8531_ldo_vol); i++) {
>> +		if (yt8531_ldo_vol[i].vol == vol && yt8531_ldo_vol[i].cur == cur)
>> +			return yt8531_ldo_vol[i].ds;
>> +	}
>> +
>> +	phydev_warn(phydev,
>> +		    "No matching current value was found %d, Use default value.\n", cur);
>> +
>> +	return YT8531_RGMII_RX_DS_DEFAULT;
> 
> If there is a value in DT and it is invalid, return -EINVAL and fail
> the probe. Only use the default if there is no value in DT.
> 
>     Andrew

Will be fixed in the next version.

Thanks for taking the time to review the code.

Best regards,
Samin