diff options
Diffstat (limited to 'drivers/mmc/core/block.c')
-rw-r--r-- | drivers/mmc/core/block.c | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index b5b414a71e0b..3a8f27c3e310 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -179,6 +179,7 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq, struct mmc_queue *mq); static void mmc_blk_hsq_req_done(struct mmc_request *mrq); static int mmc_spi_err_check(struct mmc_card *card); +static int mmc_blk_busy_cb(void *cb_data, bool *busy); static struct mmc_blk_data *mmc_blk_get(struct gendisk *disk) { @@ -470,7 +471,7 @@ static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md, struct mmc_data data = {}; struct mmc_request mrq = {}; struct scatterlist sg; - bool r1b_resp, use_r1b_resp = false; + bool r1b_resp; unsigned int busy_timeout_ms; int err; unsigned int target_part; @@ -551,8 +552,7 @@ static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md, busy_timeout_ms = idata->ic.cmd_timeout_ms ? : MMC_BLK_TIMEOUT_MS; r1b_resp = (cmd.flags & MMC_RSP_R1B) == MMC_RSP_R1B; if (r1b_resp) - use_r1b_resp = mmc_prepare_busy_cmd(card->host, &cmd, - busy_timeout_ms); + mmc_prepare_busy_cmd(card->host, &cmd, busy_timeout_ms); mmc_wait_for_req(card->host, &mrq); memcpy(&idata->ic.response, cmd.resp, sizeof(cmd.resp)); @@ -605,19 +605,28 @@ static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md, if (idata->ic.postsleep_min_us) usleep_range(idata->ic.postsleep_min_us, idata->ic.postsleep_max_us); - /* No need to poll when using HW busy detection. */ - if ((card->host->caps & MMC_CAP_WAIT_WHILE_BUSY) && use_r1b_resp) - return 0; - if (mmc_host_is_spi(card->host)) { if (idata->ic.write_flag || r1b_resp || cmd.flags & MMC_RSP_SPI_BUSY) return mmc_spi_err_check(card); return err; } - /* Ensure RPMB/R1B command has completed by polling with CMD13. */ - if (idata->rpmb || r1b_resp) - err = mmc_poll_for_busy(card, busy_timeout_ms, false, - MMC_BUSY_IO); + + /* + * Ensure RPMB, writes and R1B responses are completed by polling with + * CMD13. Note that, usually we don't need to poll when using HW busy + * detection, but here it's needed since some commands may indicate the + * error through the R1 status bits. + */ + if (idata->rpmb || idata->ic.write_flag || r1b_resp) { + struct mmc_blk_busy_data cb_data = { + .card = card, + }; + + err = __mmc_poll_for_busy(card->host, 0, busy_timeout_ms, + &mmc_blk_busy_cb, &cb_data); + + idata->ic.response[0] = cb_data.status; + } return err; } |