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Date:   Thu, 29 Apr 2021 23:26:06 +0200
From:   Andrew Lunn <andrew@lunn.ch>
To:     DENG Qingfang <dqfext@gmail.com>
Cc:     "David S. Miller" <davem@davemloft.net>,
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Subject: Re: [PATCH net-next 1/4] net: phy: add MediaTek PHY driver
Message-ID: <YIskbqKwhZA3n1Av@lunn.ch>
References: <20210429062130.29403-1-dqfext@gmail.com>
 <20210429062130.29403-2-dqfext@gmail.com>
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On Thu, Apr 29, 2021 at 02:21:27PM +0800, DENG Qingfang wrote:
> Add support for MediaTek PHYs found in MT7530 and MT7531 switches.
> The initialization procedure is from the vendor driver, but due to lack
> of documentation, the function of some register values remains unknown.
> 
> Signed-off-by: DENG Qingfang <dqfext@gmail.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

> +
> +	/* Enable HW auto downshift */
> +	phy_modify_paged(phydev, MTK_PHY_PAGE_EXTENDED, 0x14, 0, BIT(4));

As a follow up patch, you could add support for controlling this via a
PHY tunable.

    Andrew