diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index 02da9016245b..d063d50d69fe 100644
--- a/drivers/mmc/host/rtsx_pci_sdmmc.c
+++ b/drivers/mmc/host/rtsx_pci_sdmmc.c
@@ -938,7 +938,7 @@ static int sd_power_on(struct realtek_pci_sdmmc *host, unsigned char power_mode)
 	if (err < 0)
 		return err;
 
-	mdelay(5);
+	mdelay(1);
 
 	err = rtsx_pci_write_register(pcr, CARD_OE, SD_OUTPUT_EN, SD_OUTPUT_EN);
 	if (err < 0)