1 files changed, 6 insertions, 208 deletions

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 82c45ddfa202..26431267a3e2 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 */
 
@@ -362,74 +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);
-}
-EXPORT_SYMBOL(mmc_start_bkops);
-
 /*
  * mmc_wait_data_done() - done callback for data request
  * @mrq: done data request
@@ -749,71 +675,6 @@ void mmc_wait_for_req(struct mmc_host *host, struct mmc_request *mrq)
 EXPORT_SYMBOL(mmc_wait_for_req);
 
 /**
- *	mmc_interrupt_hpi - Issue for High priority Interrupt
- *	@card: the MMC card associated with the HPI transfer
- *
- *	Issued High Priority Interrupt, and check for card status
- *	until out-of prg-state.
- */
-int mmc_interrupt_hpi(struct mmc_card *card)
-{
-	int err;
-	u32 status;
-	unsigned long prg_wait;
-
-	if (!card->ext_csd.hpi_en) {
-		pr_info("%s: HPI enable bit unset\n", mmc_hostname(card->host));
-		return 1;
-	}
-
-	mmc_claim_host(card->host);
-	err = mmc_send_status(card, &status);
-	if (err) {
-		pr_err("%s: Get card status fail\n", mmc_hostname(card->host));
-		goto out;
-	}
-
-	switch (R1_CURRENT_STATE(status)) {
-	case R1_STATE_IDLE:
-	case R1_STATE_READY:
-	case R1_STATE_STBY:
-	case R1_STATE_TRAN:
-		/*
-		 * In idle and transfer states, HPI is not needed and the caller
-		 * can issue the next intended command immediately
-		 */
-		goto out;
-	case R1_STATE_PRG:
-		break;
-	default:
-		/* In all other states, it's illegal to issue HPI */
-		pr_debug("%s: HPI cannot be sent. Card state=%d\n",
-			mmc_hostname(card->host), R1_CURRENT_STATE(status));
-		err = -EINVAL;
-		goto out;
-	}
-
-	err = mmc_send_hpi_cmd(card, &status);
-	if (err)
-		goto out;
-
-	prg_wait = jiffies + msecs_to_jiffies(card->ext_csd.out_of_int_time);
-	do {
-		err = mmc_send_status(card, &status);
-
-		if (!err && R1_CURRENT_STATE(status) == R1_STATE_TRAN)
-			break;
-		if (time_after(jiffies, prg_wait))
-			err = -ETIMEDOUT;
-	} while (!err);
-
-out:
-	mmc_release_host(card->host);
-	return err;
-}
-EXPORT_SYMBOL(mmc_interrupt_hpi);
-
-/**
  *	mmc_wait_for_cmd - start a command and wait for completion
  *	@host: MMC host to start command
  *	@cmd: MMC command to start
@@ -843,53 +704,6 @@ 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;
-}
-EXPORT_SYMBOL(mmc_stop_bkops);
-
-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;
-}
-EXPORT_SYMBOL(mmc_read_bkops_status);
-
-/**
  *	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
@@ -2597,6 +2411,8 @@ EXPORT_SYMBOL(mmc_set_blockcount);
 
 static void mmc_hw_reset_for_init(struct mmc_host *host)
 {
+	mmc_pwrseq_reset(host);
+
 	if (!(host->caps & MMC_CAP_HW_RESET) || !host->ops->hw_reset)
 		return;
 	host->ops->hw_reset(host);
@@ -2836,8 +2652,11 @@ void mmc_stop_host(struct mmc_host *host)
 	host->removed = 1;
 	spin_unlock_irqrestore(&host->lock, flags);
 #endif
-	if (host->slot.cd_irq >= 0)
+	if (host->slot.cd_irq >= 0) {
+		if (host->slot.cd_wake_enabled)
+			disable_irq_wake(host->slot.cd_irq);
 		disable_irq(host->slot.cd_irq);
+	}
 
 	host->rescan_disable = 1;
 	cancel_delayed_work_sync(&host->detect);
@@ -2913,27 +2732,6 @@ int mmc_power_restore_host(struct mmc_host *host)
 }
 EXPORT_SYMBOL(mmc_power_restore_host);
 
-/*
- * Flush the cache to the non-volatile storage.
- */
-int mmc_flush_cache(struct mmc_card *card)
-{
-	int err = 0;
-
-	if (mmc_card_mmc(card) &&
-			(card->ext_csd.cache_size > 0) &&
-			(card->ext_csd.cache_ctrl & 1)) {
-		err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
-				EXT_CSD_FLUSH_CACHE, 1, 0);
-		if (err)
-			pr_err("%s: cache flush error %d\n",
-					mmc_hostname(card->host), err);
-	}
-
-	return err;
-}
-EXPORT_SYMBOL(mmc_flush_cache);
-
 #ifdef CONFIG_PM_SLEEP
 /* Do the card removal on suspend if card is assumed removeable
  * Do that in pm notifier while userspace isn't yet frozen, so we will be able