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Date:   Mon, 12 Sep 2022 12:51:00 +0200
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Subject: Re: [PATCH v2] wifi: mt76: mt7921e: fix random fw download fail
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To:     Deren Wu <Deren.Wu@mediatek.com>, Felix Fietkau <nbd@nbd.name>,
        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>,
        stable@vger.kernel.org
References: <1190a401463547e555912ef9417138df4ab2c363.1662972106.git.deren.wu@mediatek.com>
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>
In-Reply-To: <1190a401463547e555912ef9417138df4ab2c363.1662972106.git.deren.wu@mediatek.com>
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Il 12/09/22 10:45, Deren Wu ha scritto:
> From: Deren Wu <deren.wu@mediatek.com>
> 
> In case of PCIe interoperability problem shows up, the firmware
> payload may be corrupted in download stage. Turn off L0s to keep
> fw download process accurately.
> 
> [ 1093.528363] mt7921e 0000:3b:00.0: Message 00000007 (seq 7) timeout
> [ 1093.528414] mt7921e 0000:3b:00.0: Failed to start patch
> [ 1096.600156] mt7921e 0000:3b:00.0: Message 00000010 (seq 8) timeout
> [ 1096.600207] mt7921e 0000:3b:00.0: Failed to release patch semaphore
> [ 1097.699031] mt7921e 0000:3b:00.0: Timeout for driver own
> [ 1098.758427] mt7921e 0000:3b:00.0: Timeout for driver own
> [ 1099.834408] mt7921e 0000:3b:00.0: Timeout for driver own
> [ 1100.915264] mt7921e 0000:3b:00.0: Timeout for driver own
> [ 1101.990625] mt7921e 0000:3b:00.0: Timeout for driver own
> [ 1103.077587] mt7921e 0000:3b:00.0: Timeout for driver own
> [ 1104.173258] mt7921e 0000:3b:00.0: Timeout for driver own
> [ 1105.248466] mt7921e 0000:3b:00.0: Timeout for driver own
> [ 1106.336969] mt7921e 0000:3b:00.0: Timeout for driver own
> [ 1106.397542] mt7921e 0000:3b:00.0: hardware init failed
> 
> Cc: stable@vger.kernel.org
> Fixes: bf3747ae2e25 ("mt76: mt7921: enable aspm by default")
> Signed-off-by: Deren Wu <deren.wu@mediatek.com>

[For MT8195 Acer Tomato Chromebook]
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>