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Message-ID: <a604a08e-def6-427f-b33c-1e62e693bd96@quicinc.com>
Date: Mon, 18 Dec 2023 11:33:10 +0800
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Subject: Re: [PATCH v8 13/14] net: phy: at803x: configure qca8084 work mode
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To: Simon Horman <horms@kernel.org>
CC: <andrew@lunn.ch>, <davem@davemloft.net>, <edumazet@google.com>,
        <kuba@kernel.org>, <pabeni@redhat.com>, <robh+dt@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>, <conor+dt@kernel.org>,
        <hkallweit1@gmail.com>, <linux@armlinux.org.uk>, <corbet@lwn.net>,
        <p.zabel@pengutronix.de>, <f.fainelli@gmail.com>,
        <netdev@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, <linux-doc@vger.kernel.org>
References: <20231215074005.26976-1-quic_luoj@quicinc.com>
 <20231215074005.26976-14-quic_luoj@quicinc.com>
 <20231217130221.GZ6288@kernel.org>
From: Jie Luo <quic_luoj@quicinc.com>
In-Reply-To: <20231217130221.GZ6288@kernel.org>
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On 12/17/2023 9:02 PM, Simon Horman wrote:
> On Fri, Dec 15, 2023 at 03:40:03PM +0800, Luo Jie wrote:
> 
> ...
> 
>> @@ -1038,6 +1045,46 @@ static int qca8084_common_clock_init(struct phy_device *phydev)
>>   	return clk_prepare_enable(priv->clk[MDIO_MASTER_AHB_CLK]);
>>   }
>>   
>> +static int qca8084_parse_and_set_work_mode(struct phy_device *phydev)
>> +{
>> +	struct device_node *node;
>> +	struct at803x_priv *priv;
>> +	u32 value, work_mode;
>> +	int ret;
>> +
>> +	node = phydev->mdio.dev.of_node;
>> +	priv = phydev->priv;
> 
> Hi Luo Jie,
> 
> a minor nit from my side: priv is set but otherwise unused in this function.

Thanks Simon, i will update it to remove it.

> 
>> +
>> +	/* The property "qcom,phy-work-mode" is only defined in one
>> +	 * PHY device tree node.
>> +	 */
>> +	ret = of_property_read_u32(node, "qcom,phy-work-mode", &value);
>> +	if (ret)
>> +		return ret == -EINVAL ? 0 : ret;
>> +
>> +	switch (value) {
>> +	case 0:
>> +		work_mode = QCA8084_WORK_MODE_QXGMII;
>> +		break;
>> +	case 1:
>> +		work_mode = QCA8084_WORK_MODE_QXGMII_PORT4_SGMII;
>> +		break;
>> +	case 2:
>> +		work_mode = QCA8084_WORK_MODE_SWITCH;
>> +		break;
>> +	case 3:
>> +		work_mode = QCA8084_WORK_MODE_SWITCH_PORT4_SGMII;
>> +		break;
>> +	default:
>> +		phydev_err(phydev, "invalid qcom,phy-work-mode %d\n", value);
>> +		return -EINVAL;
>> +	}
>> +
>> +	return qca8084_mii_modify(phydev, QCA8084_WORK_MODE_CFG,
>> +				  QCA8084_WORK_MODE_MASK,
>> +				  FIELD_PREP(QCA8084_WORK_MODE_MASK, work_mode));
>> +}
> 
> ...