From fe72d08a961f9e09a7b04c15904a98f7c8cd537e Mon Sep 17 00:00:00 2001 From: Bean Huo Date: Wed, 18 Aug 2021 00:42:07 +0200 Subject: [PATCH] mmc: core: Issue HPI in case the BKOPS timed out If the BKOPS timed out, the card is probably still busy in the R1_STATE_PRG. Rather than continue as nothing has happened and hitting and error for the next command being sent, let's try to abort the running BKOPS by sending a HPI command to get back into R1_STATE_TRAN. Signed-off-by: Bean Huo Link: https://lore.kernel.org/r/20210817224208.153652-2-huobean@gmail.com Signed-off-by: Ulf Hansson --- drivers/mmc/core/mmc_ops.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c index 90d213a2203f..0c54858e89c0 100644 --- a/drivers/mmc/core/mmc_ops.c +++ b/drivers/mmc/core/mmc_ops.c @@ -959,8 +959,15 @@ void mmc_run_bkops(struct mmc_card *card) */ err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BKOPS_START, 1, MMC_BKOPS_TIMEOUT_MS); - if (err) - pr_warn("%s: Error %d starting bkops\n", + /* + * If the BKOPS timed out, the card is probably still busy in the + * R1_STATE_PRG. Rather than continue to wait, let's try to abort + * it with a HPI command to get back into R1_STATE_TRAN. + */ + if (err == -ETIMEDOUT && !mmc_interrupt_hpi(card)) + pr_warn("%s: BKOPS aborted\n", mmc_hostname(card->host)); + else if (err) + pr_warn("%s: Error %d running bkops\n", mmc_hostname(card->host), err); mmc_retune_release(card->host);