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Date:   Mon, 28 Nov 2022 10:26:33 +0100
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Subject: Re: [PATCH] wifi: mt76: mt7921e: introduce reboot notifier support
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To:     Deren Wu <Deren.Wu@mediatek.com>,
        Lorenzo Bianconi <lorenzo@kernel.org>
Cc:     Sean Wang <sean.wang@mediatek.com>,
        Soul Huang <Soul.Huang@mediatek.com>,
        YN Chen <YN.Chen@mediatek.com>,
        Leon Yen <Leon.Yen@mediatek.com>,
        Eric-SY Chang <Eric-SY.Chang@mediatek.com>,
        KM Lin <km.lin@mediatek.com>,
        Robin Chiu <robin.chiu@mediatek.com>,
        CH Yeh <ch.yeh@mediatek.com>, Posh Sun <posh.sun@mediatek.com>,
        Stella Chang <Stella.Chang@mediatek.com>,
        Evelyn Tsai <evelyn.tsai@mediatek.com>,
        Ryder Lee <ryder.lee@mediatek.com>,
        Shayne Chen <shayne.chen@mediatek.com>,
        linux-wireless <linux-wireless@vger.kernel.org>,
        linux-mediatek <linux-mediatek@lists.infradead.org>
References: <28482de35c4f1589dcf96b662a48bc558fe46e8f.1669361180.git.deren.wu@mediatek.com>
From:   Felix Fietkau <nbd@nbd.name>
In-Reply-To: <28482de35c4f1589dcf96b662a48bc558fe46e8f.1669361180.git.deren.wu@mediatek.com>
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On 25.11.22 08:36, Deren Wu wrote:
> From: Leon Yen <Leon.Yen@mediatek.com>
> 
> Some combinations of hosts cannnot detect mt7921e after reboot. The
> interoperability issue is caused by the status mismatch between host
> and chip fw. In such cases, the driver should stop chip activities
> and reset chip to default state before reboot.
> 
> Co-developed-by: Deren Wu <deren.wu@mediatek.com>
> Signed-off-by: Deren Wu <deren.wu@mediatek.com>
> Signed-off-by: Leon Yen <Leon.Yen@mediatek.com>
This doesn't just affect mt7921. There are some platforms where similar 
issues have been reported with mt7915 or mt7615.
I think we should move some parts of this to mt76 (and mt76-connac) core.

- Felix