diff options
Diffstat (limited to 'drivers/mmc/card/block.c')
| -rw-r--r-- | drivers/mmc/card/block.c | 35 |
1 files changed, 27 insertions, 8 deletions
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index 4c1a648d00fc..63bd30bdb439 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -136,11 +136,7 @@ static struct mmc_blk_data *mmc_blk_get(struct gendisk *disk) static inline int mmc_get_devidx(struct gendisk *disk) { - int devmaj = MAJOR(disk_devt(disk)); - int devidx = MINOR(disk_devt(disk)) / perdev_minors; - - if (!devmaj) - devidx = disk->first_minor / perdev_minors; + int devidx = disk->first_minor / perdev_minors; return devidx; } @@ -575,18 +571,22 @@ static int mmc_blk_cmd_error(struct request *req, const char *name, int error, req->rq_disk->disk_name, "timed out", name, status); /* If the status cmd initially failed, retry the r/w cmd */ - if (!status_valid) + if (!status_valid) { + pr_err("%s: status not valid, retrying timeout\n", req->rq_disk->disk_name); return ERR_RETRY; - + } /* * If it was a r/w cmd crc error, or illegal command * (eg, issued in wrong state) then retry - we should * have corrected the state problem above. */ - if (status & (R1_COM_CRC_ERROR | R1_ILLEGAL_COMMAND)) + if (status & (R1_COM_CRC_ERROR | R1_ILLEGAL_COMMAND)) { + pr_err("%s: command error, retrying timeout\n", req->rq_disk->disk_name); return ERR_RETRY; + } /* Otherwise abort the command */ + pr_err("%s: not retrying timeout\n", req->rq_disk->disk_name); return ERR_ABORT; default: @@ -1178,12 +1178,22 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc) return 0; } +static int +mmc_blk_set_blksize(struct mmc_blk_data *md, struct mmc_card *card); + static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req) { int ret; struct mmc_blk_data *md = mq->data; struct mmc_card *card = md->queue.card; +#ifdef CONFIG_MMC_BLOCK_DEFERRED_RESUME + if (mmc_bus_needs_resume(card->host)) { + mmc_resume_bus(card->host); + mmc_blk_set_blksize(md, card); + } +#endif + if (req && !mq->mqrq_prev->req) /* claim host only for the first request */ mmc_claim_host(card->host); @@ -1288,6 +1298,7 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card, md->disk->queue = md->queue.queue; md->disk->driverfs_dev = parent; set_disk_ro(md->disk, md->read_only || default_ro); + md->disk->flags = GENHD_FL_EXT_DEVT; /* * As discussed on lkml, GENHD_FL_REMOVABLE should: @@ -1527,6 +1538,9 @@ static int mmc_blk_probe(struct mmc_card *card) mmc_set_drvdata(card, md); mmc_fixup_device(card, blk_fixups); +#ifdef CONFIG_MMC_BLOCK_DEFERRED_RESUME + mmc_set_bus_resume_policy(card->host, 1); +#endif if (mmc_add_disk(md)) goto out; @@ -1552,6 +1566,9 @@ static void mmc_blk_remove(struct mmc_card *card) mmc_release_host(card->host); mmc_blk_remove_req(md); mmc_set_drvdata(card, NULL); +#ifdef CONFIG_MMC_BLOCK_DEFERRED_RESUME + mmc_set_bus_resume_policy(card->host, 0); +#endif } #ifdef CONFIG_PM @@ -1575,7 +1592,9 @@ static int mmc_blk_resume(struct mmc_card *card) struct mmc_blk_data *md = mmc_get_drvdata(card); if (md) { +#ifndef CONFIG_MMC_BLOCK_DEFERRED_RESUME mmc_blk_set_blksize(md, card); +#endif /* * Resume involves the card going into idle state, |