tag 54a74090daa894e8246a0c46b09ae85c505b8875
tagger Ulf Hansson <ulf.hansson@linaro.org> Fri May 20 14:31:37 2022 +0200
object e949dee3625e1b0ef2e40d9aa09c2995281b12f6

MMC core:
 - Fix busy polling for MMC_SEND_OP_COND again

commit e949dee3625e1b0ef2e40d9aa09c2995281b12f6
author Ulf Hansson <ulf.hansson@linaro.org> Tue May 17 12:10:46 2022 +0200
committer Ulf Hansson <ulf.hansson@linaro.org> Thu May 19 15:46:46 2022 +0200
tree b7ef42d2e8f9b10497c570df00111f6ca7ea00b3
parent 3e5a8e8494a8122fe4eb3f167662f406cab753b9

mmc: core: Fix busy polling for MMC_SEND_OP_COND again

It turned out that polling period for MMC_SEND_OP_COND, that currently is
set to 1ms, still isn't sufficient. In particular a Micron eMMC on a
Beaglebone platform, is reported to sometimes fail to initialize.

Additional test, shows that extending the period to 4ms is working fine, so
let's make that change.

Reported-by: Jean Rene Dawin <jdawin@math.uni-bielefeld.de>
Tested-by: Jean Rene Dawin <jdawin@math.uni-bielefeld.de>
Fixes: 1760fdb6fe9f (mmc: core: Restore (almost) the busy polling for MMC_SEND_OP_COND")
Fixes: 76bfc7ccc2fa ("mmc: core: adjust polling interval for CMD1")
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20220517101046.27512-1-ulf.hansson@linaro.org