Commit c144d5d4 authored Sep 09, 2014 by Subhash Jadavani

scsi: ufs-qcom: make RATE B-series as default in HS gear mode

RATE B-Series has 15% higher interface speed compared to Rate A-Series
hence it can help boost the sequential read performance. Make Rate
B-series as default one for performance reasons, for power savings we
already have clock gating/scaling and runtime PM mechanism which would
kick in whenever appropriate to save power.

Change-Id: Ifd23184fd623fa0ee7c277cf199c536e28d292ad
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>

parent e808ab83

include/linux/scsi/ufs/ufs-qcom.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -44,7 +44,7 @@
		#define UFS_QCOM_LIMIT_TX_PWR_PWM SLOW_MODE
		#define UFS_QCOM_LIMIT_RX_PWR_HS FAST_MODE
		#define UFS_QCOM_LIMIT_TX_PWR_HS FAST_MODE
		#define UFS_QCOM_LIMIT_HS_RATE PA_HS_MODE_A
		#define UFS_QCOM_LIMIT_HS_RATE PA_HS_MODE_B
		#define UFS_QCOM_LIMIT_DESIRED_MODE FAST

		/* QCOM UFS host controller vendor specific registers */