diff options
Diffstat (limited to 'drivers/mmc/core/core.c')
-rw-r--r-- | drivers/mmc/core/core.c | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index d7c934c67197..de31f304f94a 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -675,70 +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; -} - -/** * mmc_wait_for_cmd - start a command and wait for completion * @host: MMC host to start command * @cmd: MMC command to start |