Some non-standard SD host controllers may use tuning block
for executing tuning procedure.
Signed-off-by: Yangbo Lu <yangbo.lu@xxxxxxx>
---
drivers/mmc/host/sdhci.c | 3 +++
drivers/mmc/host/sdhci.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 3c9a924..051b192 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2166,6 +2166,9 @@ int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
goto out_unlock;
}
+ if (host->ops->set_tuning_block)
+ host->ops->set_tuning_block(host);
+
host->mmc->retune_period = tuning_count;
sdhci_start_tuning(host);
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 04af687..d43519b 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -568,6 +568,7 @@ struct sdhci_ops {
int card_drv, int *drv_type);
int (*start_signal_voltage_switch)(struct sdhci_host *host,
unsigned char signal_voltage);
+ void (*set_tuning_block)(struct sdhci_host *host);
};
#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
--
2.1.0.27.g96db324
--
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