[PATCH v2 09/10] mmc: tegra: Perform pad calibration after voltage switch
From: Aapo Vienamo
Date: Thu Jul 26 2018 - 08:27:31 EST
Run the automatic pad calibration after voltage switching if
tegra_host->pad_calib_required is set.
Signed-off-by: Aapo Vienamo <avienamo@xxxxxxxxxx>
---
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 295ae7a..8c89f58 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -570,6 +570,8 @@ 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) {
@@ -584,6 +586,9 @@ 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