scsi: ufs: core: Add UFSHCD_QUIRK_HIBERN_FASTAUTO

Add UFSHCD_QUIRK_HIBERN_FASTAUTO quirk for host controllers which supports
auto-hibernate the capability but only FASTAUTO mode.

Link: https://lore.kernel.org/r/20220603110524.1997825-4-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/ufs/core/ufshcd.c

@@ -4260,8 +4260,13 @@ static int ufshcd_get_max_pwr_mode(struct ufs_hba *hba)
 	if (hba->max_pwr_info.is_valid)
 		return 0;
 
-	pwr_info->pwr_tx = FAST_MODE;
-	pwr_info->pwr_rx = FAST_MODE;
+	if (hba->quirks & UFSHCD_QUIRK_HIBERN_FASTAUTO) {
+		pwr_info->pwr_tx = FASTAUTO_MODE;
+		pwr_info->pwr_rx = FASTAUTO_MODE;
+	} else {
+		pwr_info->pwr_tx = FAST_MODE;
+		pwr_info->pwr_rx = FAST_MODE;
+	}
 	pwr_info->hs_rate = PA_HS_MODE_B;
 
 	/* Get the connected lane count */

include/ufs/ufshcd.h

@@ -583,6 +583,12 @@ enum ufshcd_quirks {
 	 * 64-bit addressing supported capability but it doesn't work.
 	 */
 	UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS		= 1 << 17,
+
+	/*
+	 * This quirk needs to be enabled if the host controller has
+	 * auto-hibernate capability but it's FASTAUTO only.
+	 */
+	UFSHCD_QUIRK_HIBERN_FASTAUTO			= 1 << 18,
 };
 
 enum ufshcd_caps {