mmc: core: disable TRIM on Kingston EMMC04G-M627
authorRobert Marko <robimarko@gmail.com>
Mon, 19 Jun 2023 19:35:58 +0000 (21:35 +0200)
committerUlf Hansson <ulf.hansson@linaro.org>
Tue, 20 Jun 2023 09:49:24 +0000 (11:49 +0200)
commitf1738a1f816233e6dfc2407f24a31d596643fd90
tree38a009f93d9ac5c996e552533076e576c01ee81b
parentb5c3eb3857976050cde3d7300015f3ab40bf27b1
mmc: core: disable TRIM on Kingston EMMC04G-M627

It seems that Kingston EMMC04G-M627 despite advertising TRIM support does
not work when the core is trying to use REQ_OP_WRITE_ZEROES.

We are seeing I/O errors in OpenWrt under 6.1 on Zyxel NBG7815 that we did
not previously have and tracked it down to REQ_OP_WRITE_ZEROES.

Trying to use fstrim seems to also throw errors like:
[93010.835112] I/O error, dev loop0, sector 16902 op 0x3:(DISCARD) flags 0x800 phys_seg 1 prio class 2

Disabling TRIM makes the error go away, so lets add a quirk for this eMMC
to disable TRIM.

Signed-off-by: Robert Marko <robimarko@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230619193621.437358-1-robimarko@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
drivers/mmc/core/quirks.h