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path: root/drivers/mmc/core/core.c
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Diffstat (limited to 'drivers/mmc/core/core.c')
-rw-r--r--drivers/mmc/core/core.c118
1 files changed, 0 insertions, 118 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index d48be0b218ff..d7c934c67197 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -53,12 +53,6 @@
/* If the device is not responding */
#define MMC_CORE_TIMEOUT_MS (10 * 60 * 1000) /* 10 minute timeout */
-/*
- * Background operations can take a long time, depending on the housekeeping
- * operations the card has to perform.
- */
-#define MMC_BKOPS_MAX_TIMEOUT (4 * 60 * 1000) /* max time to wait in ms */
-
/* The max erase timeout, used when host->max_busy_timeout isn't specified */
#define MMC_ERASE_TIMEOUT_MS (60 * 1000) /* 60 s */
@@ -362,73 +356,6 @@ static int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
return 0;
}
-/**
- * mmc_start_bkops - start BKOPS for supported cards
- * @card: MMC card to start BKOPS
- * @form_exception: A flag to indicate if this function was
- * called due to an exception raised by the card
- *
- * Start background operations whenever requested.
- * When the urgent BKOPS bit is set in a R1 command response
- * then background operations should be started immediately.
-*/
-void mmc_start_bkops(struct mmc_card *card, bool from_exception)
-{
- int err;
- int timeout;
- bool use_busy_signal;
-
- if (!card->ext_csd.man_bkops_en || mmc_card_doing_bkops(card))
- return;
-
- err = mmc_read_bkops_status(card);
- if (err) {
- pr_err("%s: Failed to read bkops status: %d\n",
- mmc_hostname(card->host), err);
- return;
- }
-
- if (!card->ext_csd.raw_bkops_status)
- return;
-
- if (card->ext_csd.raw_bkops_status < EXT_CSD_BKOPS_LEVEL_2 &&
- from_exception)
- return;
-
- mmc_claim_host(card->host);
- if (card->ext_csd.raw_bkops_status >= EXT_CSD_BKOPS_LEVEL_2) {
- timeout = MMC_BKOPS_MAX_TIMEOUT;
- use_busy_signal = true;
- } else {
- timeout = 0;
- use_busy_signal = false;
- }
-
- mmc_retune_hold(card->host);
-
- err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
- EXT_CSD_BKOPS_START, 1, timeout, 0,
- use_busy_signal, true, false);
- if (err) {
- pr_warn("%s: Error %d starting bkops\n",
- mmc_hostname(card->host), err);
- mmc_retune_release(card->host);
- goto out;
- }
-
- /*
- * For urgent bkops status (LEVEL_2 and more)
- * bkops executed synchronously, otherwise
- * the operation is in progress
- */
- if (!use_busy_signal)
- mmc_card_set_doing_bkops(card);
- else
- mmc_retune_release(card->host);
-out:
- mmc_release_host(card->host);
-}
-
/*
* mmc_wait_data_done() - done callback for data request
* @mrq: done data request
@@ -841,51 +768,6 @@ int mmc_wait_for_cmd(struct mmc_host *host, struct mmc_command *cmd, int retries
EXPORT_SYMBOL(mmc_wait_for_cmd);
/**
- * mmc_stop_bkops - stop ongoing BKOPS
- * @card: MMC card to check BKOPS
- *
- * Send HPI command to stop ongoing background operations to
- * allow rapid servicing of foreground operations, e.g. read/
- * writes. Wait until the card comes out of the programming state
- * to avoid errors in servicing read/write requests.
- */
-int mmc_stop_bkops(struct mmc_card *card)
-{
- int err = 0;
-
- err = mmc_interrupt_hpi(card);
-
- /*
- * If err is EINVAL, we can't issue an HPI.
- * It should complete the BKOPS.
- */
- if (!err || (err == -EINVAL)) {
- mmc_card_clr_doing_bkops(card);
- mmc_retune_release(card->host);
- err = 0;
- }
-
- return err;
-}
-
-int mmc_read_bkops_status(struct mmc_card *card)
-{
- int err;
- u8 *ext_csd;
-
- mmc_claim_host(card->host);
- err = mmc_get_ext_csd(card, &ext_csd);
- mmc_release_host(card->host);
- if (err)
- return err;
-
- card->ext_csd.raw_bkops_status = ext_csd[EXT_CSD_BKOPS_STATUS];
- card->ext_csd.raw_exception_status = ext_csd[EXT_CSD_EXP_EVENTS_STATUS];
- kfree(ext_csd);
- return 0;
-}
-
-/**
* mmc_set_data_timeout - set the timeout for a data command
* @data: data phase for command
* @card: the MMC card associated with the data transfer