diff options
Diffstat (limited to 'drivers/mmc/core/core.c')
| -rw-r--r-- | drivers/mmc/core/core.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 2cdb06e0643..dc9eb013db5 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1077,6 +1077,30 @@ void mmc_set_ungated(struct mmc_host *host) } #endif +int mmc_execute_tuning(struct mmc_card *card) +{ + struct mmc_host *host = card->host; + u32 opcode; + int err; + + if (!host->ops->execute_tuning) + return 0; + + if (mmc_card_mmc(card)) + opcode = MMC_SEND_TUNING_BLOCK_HS200; + else + opcode = MMC_SEND_TUNING_BLOCK; + + mmc_host_clk_hold(host); + err = host->ops->execute_tuning(host, opcode); + mmc_host_clk_release(host); + + if (err) + pr_err("%s: tuning execution failed\n", mmc_hostname(host)); + + return err; +} + /* * Change the bus mode (open drain/push-pull) of a host. */ |