mmc: dw_mmc: fix the wrong setting for UHS-DDR50 mode

When card is running with DDR mode, dwmmc needs to set DDR_REG bit at
UHS_REG register.
Before this patch, dwmmc controller doesn't consider this.
If this patch is not applied, CRC or other error shoulds be occurred.

Signed-off-by: Jaehoon Chung <[email protected]>
Reviewed-by: Alim Akhtar <[email protected]>
Signed-off-by: Ulf Hansson <[email protected]>
Signed-off-by: Jorge Ramirez-Ortiz <[email protected]>

Author: jh80chung

drivers/mmc/host/dw_mmc.c

@@ -1041,6 +1041,7 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 
 	/* DDR mode set */
 	if (ios->timing == MMC_TIMING_MMC_DDR52 ||
+	    ios->timing == MMC_TIMING_UHS_DDR50 ||
 	    ios->timing == MMC_TIMING_MMC_HS400)
 		regs |= ((0x1 << slot->id) << 16);
 	else