diff options
Diffstat (limited to 'drivers/mmc/host/sdhci-cadence.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-cadence.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci-cadence.c b/drivers/mmc/host/sdhci-cadence.c index 6da6d4fb5edd..4a6c9ba82538 100644 --- a/drivers/mmc/host/sdhci-cadence.c +++ b/drivers/mmc/host/sdhci-cadence.c @@ -97,6 +97,11 @@ static int sdhci_cdns_write_phy_reg(struct sdhci_cdns_priv *priv, u32 tmp; int ret; + ret = readl_poll_timeout(reg, tmp, !(tmp & SDHCI_CDNS_HRS04_ACK), + 0, 10); + if (ret) + return ret; + tmp = FIELD_PREP(SDHCI_CDNS_HRS04_WDATA, data) | FIELD_PREP(SDHCI_CDNS_HRS04_ADDR, addr); writel(tmp, reg); @@ -111,7 +116,10 @@ static int sdhci_cdns_write_phy_reg(struct sdhci_cdns_priv *priv, tmp &= ~SDHCI_CDNS_HRS04_WR; writel(tmp, reg); - return 0; + ret = readl_poll_timeout(reg, tmp, !(tmp & SDHCI_CDNS_HRS04_ACK), + 0, 10); + + return ret; } static unsigned int sdhci_cdns_phy_param_count(struct device_node *np) |