diff mbox series

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

Message ID 1580972212-29881-9-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State Superseded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 Feb. 6, 2020, 6:56 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>
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Hongwu Su <hongwus@codeaurora.org>
Reviewed-by: Bean Huo <beanhuo@micron.com>
diff mbox series

Patch

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 76beaf9..1fe0a97 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -4069,6 +4069,17 @@  static int ufshcd_change_power_mode(struct ufs_hba *hba,
 		ufshcd_dme_set(hba, UIC_ARG_MIB(PA_HSSERIES),
 						pwr_mode->hs_rate);
 
+	if (hba->ufs_version >= UFSHCI_VERSION_30) {
+		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);
+	}
+
 	ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA0),
 			DL_FC0ProtectionTimeOutVal_Default);
 	ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA1),
@@ -8447,7 +8458,8 @@  int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 	if ((hba->ufs_version != UFSHCI_VERSION_10) &&
 	    (hba->ufs_version != UFSHCI_VERSION_11) &&
 	    (hba->ufs_version != UFSHCI_VERSION_20) &&
-	    (hba->ufs_version != UFSHCI_VERSION_21))
+	    (hba->ufs_version != UFSHCI_VERSION_21) &&
+	    (hba->ufs_version != UFSHCI_VERSION_30))
 		dev_err(hba->dev, "invalid UFS version 0x%x\n",
 			hba->ufs_version);
 
diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h
index c2961d3..f2ee816 100644
--- a/drivers/scsi/ufs/ufshci.h
+++ b/drivers/scsi/ufs/ufshci.h
@@ -104,6 +104,7 @@  enum {
 	UFSHCI_VERSION_11 = 0x00010100, /* 1.1 */
 	UFSHCI_VERSION_20 = 0x00000200, /* 2.0 */
 	UFSHCI_VERSION_21 = 0x00000210, /* 2.1 */
+	UFSHCI_VERSION_30 = 0x00000300, /* 3.0 */
 };
 
 /*
diff --git a/drivers/scsi/ufs/unipro.h b/drivers/scsi/ufs/unipro.h
index 3dc4d8b..5a724b2 100644
--- a/drivers/scsi/ufs/unipro.h
+++ b/drivers/scsi/ufs/unipro.h
@@ -146,6 +146,12 @@ 
 #define PA_SLEEPNOCONFIGTIME	0x15A2
 #define PA_STALLNOCONFIGTIME	0x15A3
 #define PA_SAVECONFIGTIME	0x15A4
+#define PA_TXHSADAPTTYPE	0x15D4
+
+/* Adpat type for PA_TXHSADAPTTYPE attribute */
+#define PA_REFRESH_ADAPT	0x00
+#define PA_INITIAL_ADAPT	0x01
+#define PA_NO_ADAPT		0x03
 
 #define PA_TACTIVATE_TIME_UNIT_US	10
 #define PA_HIBERN8_TIME_UNIT_US		100
@@ -203,6 +209,7 @@  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 {