linux-kernel - Aw: [PATCH 3/3] mmc: mediatek: add optional module reset property

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Message-ID: <trinity-5b810acf-eb8f-452e-b08a-30e1fe46226d-1597226878715@3c-app-gmx-bap56>
Date:   Wed, 12 Aug 2020 12:07:58 +0200
From:   Frank Wunderlich <frank-w@...lic-files.de>
To:     Wenbin Mei <wenbin.mei@...iatek.com>
Cc:     Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        Wenbin Mei <wenbin.mei@...iatek.com>,
        srv_heupstream@...iatek.com, linux-mmc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Chaotian Jing <chaotian.jing@...iatek.com>,
        stable@...r.kernel.org
Subject: Aw: [PATCH 3/3] mmc: mediatek: add optional module reset property

> Gesendet: Mittwoch, 12. August 2020 um 11:37 Uhr
> Von: "Wenbin Mei" <wenbin.mei@...iatek.com>
> Betreff: [PATCH 3/3] mmc: mediatek: add optional module reset property

> This patch adds a optional reset management for msdc.
> Sometimes the bootloader does not bring msdc register
> to default state, so need reset the msdc controller.
>
> Signed-off-by: Wenbin Mei <wenbin.mei@...iatek.com>

Thanks for posting the fix to Mainline

imho this should contain a fixes-Tag as it fixes eMMC-Access on mt7622/Bpi-R64

before we got these Errors on mounting eMMC ion R64:

[   48.664925] blk_update_request: I/O error, dev mmcblk0, sector 204800 op 0x1:(WRITE) flags 0x800 phys_seg 1 prio class 0
[   48.676019] Buffer I/O error on dev mmcblk0p1, logical block 0, lost sync page write

Fixes: 966580ad236e ("mmc: mediatek: add support for MT7622 SoC")
Tested-By: Frank Wunderlich <frank-w@...lic-files.de>

and it needs to be fixed at least for 5.4+, so adding stable-CC

Cc: stable@...r.kernel.org