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

From: Frank Wunderlich
Date: Wed Aug 12 2020 - 06:08:28 EST

> Gesendet: Mittwoch, 12. August 2020 um 11:37 Uhr
> Von: "Wenbin Mei" <wenbin.mei@xxxxxxxxxxxx>
> 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@xxxxxxxxxxxx>

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@xxxxxxxxxxxxxxx>

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

Cc: stable@xxxxxxxxxxxxxxx