diff options
Diffstat (limited to 'drivers/mmc/core/mmc.c')
| -rw-r--r-- | drivers/mmc/core/mmc.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 6f8ebd6caa4c..4466f5de54d4 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -1282,6 +1282,10 @@ int mmc_hs400_to_hs200(struct mmc_card *card) mmc_set_bus_speed(card); + /* Prepare tuning for HS400 mode. */ + if (host->ops->prepare_hs400_tuning) + host->ops->prepare_hs400_tuning(host, &host->ios); + return 0; out_err: @@ -1830,6 +1834,14 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, } } + if (host->caps2 & MMC_CAP2_AVOID_3_3V && + host->ios.signal_voltage == MMC_SIGNAL_VOLTAGE_330) { + pr_err("%s: Host failed to negotiate down from 3.3V\n", + mmc_hostname(host)); + err = -EINVAL; + goto free_card; + } + if (!oldcard) host->card = card; @@ -2117,7 +2129,7 @@ static int mmc_can_reset(struct mmc_card *card) return 1; } -static int mmc_reset(struct mmc_host *host) +static int _mmc_hw_reset(struct mmc_host *host) { struct mmc_card *card = host->card; @@ -2151,7 +2163,7 @@ static const struct mmc_bus_ops mmc_ops = { .runtime_resume = mmc_runtime_resume, .alive = mmc_alive, .shutdown = mmc_shutdown, - .reset = mmc_reset, + .hw_reset = _mmc_hw_reset, }; /* |