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Commit 18f69810 authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "scsi: ufs: enable FASTAUTO mode during low load condition"

parents daac391f b4b09fed

drivers/scsi/ufs/ufs_quirks.c

+2 −0
Original line number Diff line number Diff line
@@ -20,6 +20,8 @@ static struct ufs_card_fix ufs_fixups[] = { 
	UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL, UFS_DEVICE_NO_VCCQ),

	UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,

		UFS_DEVICE_QUIRK_RECOVERY_FROM_DL_NAC_ERRORS),

	UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,

		UFS_DEVICE_NO_FASTAUTO),

	UFS_FIX(UFS_VENDOR_TOSHIBA, "THGLF2G9C8KBADG",

		UFS_DEVICE_QUIRK_PA_TACTIVATE),

	UFS_FIX(UFS_VENDOR_TOSHIBA, "THGLF2G9D8KBADG",

drivers/scsi/ufs/ufs_quirks.h

+7 −0
Original line number Diff line number Diff line
@@ -115,6 +115,13 @@ struct ufs_card_fix { 
 */

#define UFS_DEVICE_QUIRK_PA_TACTIVATE	(1 << 4)



/*

 * Some UFS memory devices may have really low read/write throughput in

 * FAST AUTO mode, enable this quirk to make sure that FAST AUTO mode is

 * never enabled for such devices.

 */

#define UFS_DEVICE_NO_FASTAUTO		(1 << 5)



struct ufs_hba;

void ufs_advertise_fixup_device(struct ufs_hba *hba);

#endif /* UFS_QUIRKS_H_ */

drivers/scsi/ufs/ufshcd.c

+4 −0
Original line number Diff line number Diff line
@@ -8469,6 +8469,10 @@ static int ufshcd_scale_gear(struct ufs_hba *hba, bool scale_up) 
			/* scale down gear */

			new_pwr_info.gear_tx = UFS_MIN_GEAR_TO_SCALE_DOWN;

			new_pwr_info.gear_rx = UFS_MIN_GEAR_TO_SCALE_DOWN;

			if (!(hba->dev_quirks & UFS_DEVICE_NO_FASTAUTO)) {

				new_pwr_info.pwr_tx = FASTAUTO_MODE;

				new_pwr_info.pwr_rx = FASTAUTO_MODE;

			}

		}

	}