diff mbox series

[v3,8/8] scsi: ufs: Select INITIAL adapt for HS Gear4

Message ID 1579759946-5448-9-git-send-email-cang@codeaurora.org (mailing list archive)
State Superseded
Headers show
Series UFS driver general fixes bundle 4 | expand

Commit Message

Can Guo Jan. 23, 2020, 6:12 a.m. UTC 
ADAPT is added specifically for HS Gear4 mode only, select INITIAL adapt
before do power mode change to G4 and select no adapt before switch to
non-G4 modes.

Signed-off-by: Can Guo <cang@codeaurora.org>
---
 drivers/scsi/ufs/ufshcd.c | 8 ++++++++
 drivers/scsi/ufs/unipro.h | 1 +
 2 files changed, 9 insertions(+)
diff mbox series

Patch

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 1ee2187..20b9428 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -4134,6 +4134,14 @@  static int ufshcd_change_power_mode(struct ufs_hba *hba,
 		ufshcd_dme_set(hba, UIC_ARG_MIB(PA_HSSERIES),
 						pwr_mode->hs_rate);
 
+	if (pwr_mode->gear_tx == UFS_HS_G4)
+		/* INITIAL ADAPT */
+		ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TXHSADAPTTYPE),
+						PA_INITIAL_ADAPT);
+	else
+		/* NO ADAPT */
+		ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TXHSADAPTTYPE), PA_NO_ADAPT);
+
 	ret = ufshcd_uic_change_pwr_mode(hba, pwr_mode->pwr_rx << 4
 			| pwr_mode->pwr_tx);
 
diff --git a/drivers/scsi/ufs/unipro.h b/drivers/scsi/ufs/unipro.h
index f539f87..bd1c3d6 100644
--- a/drivers/scsi/ufs/unipro.h
+++ b/drivers/scsi/ufs/unipro.h
@@ -192,6 +192,7 @@  enum ufs_hs_gear_tag {
 	UFS_HS_G1,		/* HS Gear 1 (default for reset) */
 	UFS_HS_G2,		/* HS Gear 2 */
 	UFS_HS_G3,		/* HS Gear 3 */
+	UFS_HS_G4,		/* HS Gear 4 */
 };
 
 enum ufs_unipro_ver {