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Subject[PATCH v2 18/40] mmc: tegra: Perform pad calibration after voltage switch
Date
Run the automatic pad calibration after voltage switching if
tegra_host->pad_calib_required is set.

Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
---
drivers/mmc/host/sdhci-tegra.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index eff1c82..d7f3480 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -572,6 +572,8 @@ static int sdhci_tegra_start_signal_voltage_switch(struct mmc_host *mmc,
struct mmc_ios *ios)
{
struct sdhci_host *host = mmc_priv(mmc);
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct sdhci_tegra *tegra_host = sdhci_pltfm_priv(pltfm_host);
int ret = 0;

if (ios->signal_voltage == MMC_SIGNAL_VOLTAGE_330) {
@@ -586,6 +588,9 @@ static int sdhci_tegra_start_signal_voltage_switch(struct mmc_host *mmc,
ret = tegra_sdhci_set_padctrl(host, ios->signal_voltage);
}

+ if (tegra_host->pad_calib_required)
+ tegra_sdhci_pad_autocalib(host);
+
return ret;
}

--
2.7.4
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