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| author | Wenbin Mei <wenbin.mei@mediatek.com> | 2020-08-14 09:43:46 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-09 19:12:33 +0200 |
| commit | 5876ee035ba68c46bac91ca73d917f8b0eb2be4c (patch) | |
| tree | 83bb163430660a8db82ad61789839e3ac496e5c9 /Documentation/devicetree | |
| parent | 2816ccd07145e495e82210bfd9d446dad3feb087 (diff) | |
mmc: mediatek: add optional module reset property
commit 855d388df217989fbf1f18c781ae6490dbb48e86 upstream.
This patch fixs eMMC-Access on mt7622/Bpi-64.
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
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.
Cc: <stable@vger.kernel.org> # v5.4+
Fixes: 966580ad236e ("mmc: mediatek: add support for MT7622 SoC")
Signed-off-by: Wenbin Mei <wenbin.mei@mediatek.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Frank Wunderlich <frank-w@public-files.de>
Link: https://lore.kernel.org/r/20200814014346.6496-4-wenbin.mei@mediatek.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree')
0 files changed, 0 insertions, 0 deletions