diff options
| author | Pavan Kunapuli <pkunapuli@nvidia.com> | 2012-01-13 15:27:24 +0530 |
|---|---|---|
| committer | Varun Colbert <vcolbert@nvidia.com> | 2012-01-30 11:47:02 -0800 |
| commit | 58858330fc4ed47e11c9214cc4b526bf714ee476 (patch) | |
| tree | 5cd116f7e416284e08257b8dd7aaaca7fc144152 /drivers/mmc/host | |
| parent | 789424fc3f1ee51b28e975a69621e95c6264a4d1 (diff) | |
sdhci: Add option for non std freq tuning
Adding option for non std freq tuning for
host controllers that have deviation in the
tuning procedure.
Bug 920089
Change-Id: I8ca6962c6f0380c1160460e5094c47aee241d6e3
Reviewed-on: http://git-master/r/72603
Reviewed-by: Pradeep Goudagunta <pgoudagunta@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Signed-off-by: Pavan Kunapuli <pkunapuli@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: I97cceb39fd27b159823ebce6706c5e74e53deccd
Reviewed-on: http://git-master/r/77303
Reviewed-by: Automatic_Commit_Validation_User
Diffstat (limited to 'drivers/mmc/host')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 8 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.h | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 417fdd1721f2..b1dd628ac648 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1632,6 +1632,14 @@ static int sdhci_execute_tuning(struct mmc_host *mmc) disable_irq(host->irq); spin_lock(&host->lock); + if ((host->quirks & SDHCI_QUIRK_NON_STANDARD_TUNING) && + host->ops->execute_freq_tuning) { + err = host->ops->execute_freq_tuning(host); + spin_unlock(&host->lock); + enable_irq(host->irq); + return err; + } + ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2); /* diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 1c12419f9d64..bdf4b1055462 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -277,6 +277,7 @@ struct sdhci_ops { int (*resume)(struct sdhci_host *host); int (*switch_signal_voltage)(struct sdhci_host *host, unsigned int signal_voltage); + int (*execute_freq_tuning)(struct sdhci_host *sdhci); }; #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS |