netdev - Re: [PATCH net-next v3 1/3] net: ethernet: mediatek: Add basic PHYLINK support

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Message-ID: <20190824123348.Horde.LdDLM3_wpuexnof5e7L-q-2@www.vdorst.com>
Date:   Sat, 24 Aug 2019 12:33:48 +0000
From:   René van Dorst <opensource@...rst.com>
To:     Russell King - ARM Linux admin <linux@...linux.org.uk>
Cc:     John Crispin <john@...ozen.org>,
        Sean Wang <sean.wang@...iatek.com>,
        Nelson Chang <nelson.chang@...iatek.com>,
        "David S . Miller" <davem@...emloft.net>,
        Matthias Brugger <matthias.bgg@...il.com>,
        netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-mips@...r.kernel.org,
        Frank Wunderlich <frank-w@...lic-files.de>,
        Stefan Roese <sr@...x.de>
Subject: Re: [PATCH net-next v3 1/3] net: ethernet: mediatek: Add basic
 PHYLINK support

Hi Russell,

Quoting Russell King - ARM Linux admin <linux@...linux.org.uk>:

> On Fri, Aug 23, 2019 at 03:45:14PM +0200, René van Dorst wrote:
>> This convert the basics to PHYLINK API.
>> SGMII support is not in this patch.
>>
>> Signed-off-by: René van Dorst <opensource@...rst.com>
>> --
>> v2->v3:
>> * Make link_down() similar as link_up() suggested by Russell King
>
> Yep, almost there, but...
>
>> +static void mtk_mac_link_down(struct phylink_config *config,  
>> unsigned int mode,
>> +			      phy_interface_t interface)
>> +{
>> +	struct mtk_mac *mac = container_of(config, struct mtk_mac,
>> +					   phylink_config);
>> +	u32 mcr = mtk_r32(mac->hw, MTK_MAC_MCR(mac->id));
>>
>> +	mcr &= (MAC_MCR_TX_EN | MAC_MCR_RX_EN);
>
> ... this clears all bits _except_ for the tx and rx enable (which will
> remain set) - you probably wanted a ~ before the (.

Yes that is what it should be.
I only want to clear the TX_EN en RX_EN bits.

Greats,

René

>
> --
> RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
> FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps up
> According to speedtest.net: 11.9Mbps down 500kbps up