Linux SCSI subsystem development
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From: Can Guo <can.guo@oss.qualcomm.com>
To: avri.altman@wdc.com, bvanassche@acm.org, beanhuo@micron.com,
	martin.petersen@oracle.com
Cc: linux-scsi@vger.kernel.org, Can Guo <can.guo@oss.qualcomm.com>,
	Manivannan Sadhasivam <mani@kernel.org>,
	"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
	linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM MAILING
	LIST), linux-kernel@vger.kernel.org (open list)
Subject: [PATCH 11/11] scsi: ufs: ufs-qcom: Enable TX Equalization
Date: Fri, 27 Feb 2026 08:08:08 -0800	[thread overview]
Message-ID: <20260227160809.2620598-12-can.guo@oss.qualcomm.com> (raw)
In-Reply-To: <20260227160809.2620598-1-can.guo@oss.qualcomm.com>

Enable TX Equalization for hosts with HW version 0x7 and onwards.

Signed-off-by: Can Guo <can.guo@oss.qualcomm.com>
---
 drivers/ufs/host/ufs-qcom.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
index 8582396fa0d8..7a1d36bdf753 100644
--- a/drivers/ufs/host/ufs-qcom.c
+++ b/drivers/ufs/host/ufs-qcom.c
@@ -1391,6 +1391,8 @@ static void ufs_qcom_set_host_caps(struct ufs_hba *hba)
 
 static void ufs_qcom_set_caps(struct ufs_hba *hba)
 {
+	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
+
 	hba->caps |= UFSHCD_CAP_CLK_GATING | UFSHCD_CAP_HIBERN8_WITH_CLK_GATING;
 	hba->caps |= UFSHCD_CAP_CLK_SCALING | UFSHCD_CAP_WB_WITH_CLK_SCALING;
 	hba->caps |= UFSHCD_CAP_AUTO_BKOPS_SUSPEND;
@@ -1398,6 +1400,9 @@ static void ufs_qcom_set_caps(struct ufs_hba *hba)
 	hba->caps |= UFSHCD_CAP_AGGR_POWER_COLLAPSE;
 	hba->caps |= UFSHCD_CAP_RPM_AUTOSUSPEND;
 
+	if (host->hw_ver.major >= 0x7)
+		hba->caps |= UFSHCD_CAP_TX_EQUALIZATION;
+
 	ufs_qcom_set_host_caps(hba);
 }
 
-- 
2.34.1


      parent reply	other threads:[~2026-02-27 16:09 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-27 16:07 [PATCH 00/11] scsi: ufs: Add TX Equalization support for UFS 5.0 Can Guo
2026-02-27 16:07 ` [PATCH 01/11] scsi: ufs: core: Introduce a new ufshcd vops negotiate_pwr_mode() Can Guo
2026-02-27 19:31   ` Bart Van Assche
2026-03-01 14:26     ` Can Guo
2026-03-01 17:51       ` Bart Van Assche
2026-03-02  0:15         ` Can Guo
2026-02-27 16:07 ` [PATCH 02/11] scsi: ufs: core: Pass force_pmc to ufshcd_config_pwr_mode() as a parameter Can Guo
2026-02-27 20:46   ` Bart Van Assche
2026-03-02  0:52     ` Can Guo
2026-02-27 16:08 ` [PATCH 03/11] scsi: ufs: core: Add UFS_HS_G6 and UFS_HS_GEAR_MAX to enum ufs_hs_gear_tag Can Guo
2026-02-27 16:08 ` [PATCH 04/11] scsi: ufs: core: Add support for TX Equalization Can Guo
2026-02-27 21:39   ` Bart Van Assche
2026-03-02  3:46     ` Can Guo
2026-02-27 22:04   ` kernel test robot
2026-02-27 16:08 ` [PATCH 05/11] scsi: ufs: core: Add debugfs entries for TX Equalization params Can Guo
2026-02-27 21:49   ` Bart Van Assche
2026-03-02  5:46     ` Can Guo
2026-02-27 16:08 ` [PATCH 06/11] scsi: ufs: core: Add support to retrain TX Equalization via debugfs Can Guo
2026-02-27 21:55   ` Bart Van Assche
2026-02-27 16:08 ` [PATCH 07/11] scsi: ufs: ufs-qcom: Fixup PAM-4 TX L0_L1_L2_L3 adaptation pattern length Can Guo
2026-02-27 16:08 ` [PATCH 08/11] scsi: ufs: ufs-qcom: Implement vops tx_eqtr_notify() Can Guo
2026-02-27 16:08 ` [PATCH 09/11] scsi: ufs: ufs-qcom: Implement vops get_rx_fom() Can Guo
2026-02-27 16:08 ` [PATCH 10/11] scsi: ufs: ufs-qcom: Implement vops apply_tx_eqtr_settings() Can Guo
2026-02-27 16:08 ` Can Guo [this message]

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