context_info->is_done_rcv = false;
context_info->is_new_req = false;
cmd = mrq->cmd;
+
if (!cmd->error || !cmd->retries ||
mmc_card_removed(host->card)) {
err = host->areq->err_check(host->card,
wait_for_completion(&mrq->completion);
cmd = mrq->cmd;
+
+ /*
+ * If host has timed out waiting for the sanitize
+ * to complete, card might be still in programming state
+ * so let's try to bring the card out of programming
+ * state.
+ */
+ if (cmd->sanitize_busy && cmd->error == -ETIMEDOUT) {
+ if (!mmc_interrupt_hpi(host->card)) {
+ pr_warning("%s: %s: Interrupted sanitize\n",
+ mmc_hostname(host), __func__);
+ cmd->error = 0;
+ break;
+ } else {
+ pr_err("%s: %s: Failed to interrupt sanitize\n",
+ mmc_hostname(host), __func__);
+ }
+ }
if (!cmd->error || !cmd->retries ||
mmc_card_removed(host->card))
break;
}
EXPORT_SYMBOL(mmc_release_host);
+/*
+ * This is a helper function, which fetches a runtime pm reference for the
+ * card device and also claims the host.
+ */
+void mmc_get_card(struct mmc_card *card)
+{
+ pm_runtime_get_sync(&card->dev);
+ mmc_claim_host(card->host);
+}
+EXPORT_SYMBOL(mmc_get_card);
+
+/*
+ * This is a helper function, which releases the host and drops the runtime
+ * pm reference for the card device.
+ */
+void mmc_put_card(struct mmc_card *card)
+{
+ mmc_release_host(card->host);
+ pm_runtime_mark_last_busy(&card->dev);
+ pm_runtime_put_autosuspend(&card->dev);
+}
+EXPORT_SYMBOL(mmc_put_card);
+
/*
* Internal function that does the actual ios call to the host driver,
* optionally printing some debug output.
* If a host does all the power sequencing itself, ignore the
* initial MMC_POWER_UP stage.
*/
-static void mmc_power_up(struct mmc_host *host)
+void mmc_power_up(struct mmc_host *host)
{
int bit;
* The card will be considered unchanged unless we have been asked to
* detect a change or host requires polling to provide card detection.
*/
- if (!host->detect_change && !(host->caps & MMC_CAP_NEEDS_POLL) &&
- !(host->caps2 & MMC_CAP2_DETECT_ON_ERR))
+ if (!host->detect_change && !(host->caps & MMC_CAP_NEEDS_POLL))
return ret;
host->detect_change = 0;
if (!ret) {
ret = _mmc_detect_card_removed(host);
- if (ret && (host->caps2 & MMC_CAP2_DETECT_ON_ERR)) {
+ if (ret && (host->caps & MMC_CAP_NEEDS_POLL)) {
/*
* Schedule a detect work as soon as possible to let a
* rescan handle the card removal.
mmc_bus_get(host);
if (host->bus_ops && !host->bus_dead) {
/* Calling bus_ops->remove() with a claimed host can deadlock */
- if (host->bus_ops->remove)
- host->bus_ops->remove(host);
-
+ host->bus_ops->remove(host);
mmc_claim_host(host);
mmc_detach_bus(host);
mmc_power_off(host);
}
EXPORT_SYMBOL(mmc_power_restore_host);
-int mmc_card_awake(struct mmc_host *host)
-{
- int err = -ENOSYS;
-
- if (host->caps2 & MMC_CAP2_NO_SLEEP_CMD)
- return 0;
-
- mmc_bus_get(host);
-
- if (host->bus_ops && !host->bus_dead && host->bus_ops->awake)
- err = host->bus_ops->awake(host);
-
- mmc_bus_put(host);
-
- return err;
-}
-EXPORT_SYMBOL(mmc_card_awake);
-
-int mmc_card_sleep(struct mmc_host *host)
-{
- int err = -ENOSYS;
-
- if (host->caps2 & MMC_CAP2_NO_SLEEP_CMD)
- return 0;
-
- mmc_bus_get(host);
-
- if (host->bus_ops && !host->bus_dead && host->bus_ops->sleep)
- err = host->bus_ops->sleep(host);
-
- mmc_bus_put(host);
-
- return err;
-}
-EXPORT_SYMBOL(mmc_card_sleep);
-
-int mmc_card_can_sleep(struct mmc_host *host)
-{
- struct mmc_card *card = host->card;
-
- if (card && mmc_card_mmc(card) && card->ext_csd.rev >= 3)
- return 1;
- return 0;
-}
-EXPORT_SYMBOL(mmc_card_can_sleep);
-
/*
* Flush the cache to the non-volatile storage.
*/
*/
int mmc_suspend_host(struct mmc_host *host)
{
- int err = 0;
-
- cancel_delayed_work(&host->detect);
- mmc_flush_scheduled_work();
-
- mmc_bus_get(host);
- if (host->bus_ops && !host->bus_dead) {
- if (host->bus_ops->suspend) {
- if (mmc_card_doing_bkops(host->card)) {
- err = mmc_stop_bkops(host->card);
- if (err)
- goto out;
- }
- err = host->bus_ops->suspend(host);
- }
-
- if (err == -ENOSYS || !host->bus_ops->resume) {
- /*
- * We simply "remove" the card in this case.
- * It will be redetected on resume. (Calling
- * bus_ops->remove() with a claimed host can
- * deadlock.)
- */
- if (host->bus_ops->remove)
- host->bus_ops->remove(host);
- mmc_claim_host(host);
- mmc_detach_bus(host);
- mmc_power_off(host);
- mmc_release_host(host);
- host->pm_flags = 0;
- err = 0;
- }
- }
- mmc_bus_put(host);
-
- if (!err && !mmc_card_keep_power(host))
- mmc_power_off(host);
-
-out:
- return err;
+ /* This function is deprecated */
+ return 0;
}
-
EXPORT_SYMBOL(mmc_suspend_host);
/**
*/
int mmc_resume_host(struct mmc_host *host)
{
- int err = 0;
-
- mmc_bus_get(host);
- if (host->bus_ops && !host->bus_dead) {
- if (!mmc_card_keep_power(host)) {
- mmc_power_up(host);
- mmc_select_voltage(host, host->ocr);
- /*
- * Tell runtime PM core we just powered up the card,
- * since it still believes the card is powered off.
- * Note that currently runtime PM is only enabled
- * for SDIO cards that are MMC_CAP_POWER_OFF_CARD
- */
- if (mmc_card_sdio(host->card) &&
- (host->caps & MMC_CAP_POWER_OFF_CARD)) {
- pm_runtime_disable(&host->card->dev);
- pm_runtime_set_active(&host->card->dev);
- pm_runtime_enable(&host->card->dev);
- }
- }
- BUG_ON(!host->bus_ops->resume);
- err = host->bus_ops->resume(host);
- if (err) {
- pr_warning("%s: error %d during resume "
- "(card was removed?)\n",
- mmc_hostname(host), err);
- err = 0;
- }
- }
- host->pm_flags &= ~MMC_PM_KEEP_POWER;
- mmc_bus_put(host);
-
- return err;
+ /* This function is deprecated */
+ return 0;
}
EXPORT_SYMBOL(mmc_resume_host);
switch (mode) {
case PM_HIBERNATION_PREPARE:
case PM_SUSPEND_PREPARE:
- if (host->card && mmc_card_mmc(host->card) &&
- mmc_card_doing_bkops(host->card)) {
- err = mmc_stop_bkops(host->card);
- if (err) {
- pr_err("%s: didn't stop bkops\n",
- mmc_hostname(host));
- return err;
- }
- mmc_card_clr_doing_bkops(host->card);
- }
-
spin_lock_irqsave(&host->lock, flags);
host->rescan_disable = 1;
spin_unlock_irqrestore(&host->lock, flags);
cancel_delayed_work_sync(&host->detect);
- if (!host->bus_ops || host->bus_ops->suspend)
+ if (!host->bus_ops)
break;
- /* Calling bus_ops->remove() with a claimed host can deadlock */
- if (host->bus_ops->remove)
- host->bus_ops->remove(host);
+ /* Validate prerequisites for suspend */
+ if (host->bus_ops->pre_suspend)
+ err = host->bus_ops->pre_suspend(host);
+ if (!err && host->bus_ops->suspend)
+ break;
+ /* Calling bus_ops->remove() with a claimed host can deadlock */
+ host->bus_ops->remove(host);
mmc_claim_host(host);
mmc_detach_bus(host);
mmc_power_off(host);
projects / ~andy / linux / blobdiff