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, mani@kernel.org
Cc: linux-scsi@vger.kernel.org, Can Guo <can.guo@oss.qualcomm.com>,
	"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
	linux-arm-msm@vger.kernel.org (open list:UNIVERSAL FLASH STORAGE
	HOST CONTROLLER DRIVER...),
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v3 12/12] scsi: ufs: ufs-qcom: Enable TX Equalization
Date: Sun,  8 Mar 2026 08:14:09 -0700	[thread overview]
Message-ID: <20260308151409.3779137-13-can.guo@oss.qualcomm.com> (raw)
In-Reply-To: <20260308151409.3779137-1-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 a7feef2385fd..af481499e2c4 100644
--- a/drivers/ufs/host/ufs-qcom.c
+++ b/drivers/ufs/host/ufs-qcom.c
@@ -1394,6 +1394,8 @@ 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;
@@ -1401,6 +1403,9 @@ 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:[~2026-03-08 15:15 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-08 15:13 [PATCH v3 00/12] scsi: ufs: Add TX Equalization support for UFS 5.0 Can Guo
2026-03-08 15:13 ` [PATCH v3 01/12] scsi: ufs: core: Introduce a new ufshcd vops negotiate_pwr_mode() Can Guo
2026-03-13 22:09   ` Bart Van Assche
2026-03-14  7:21     ` Can Guo
2026-03-08 15:13 ` [PATCH v3 02/12] scsi: ufs: core: Pass force_pmc to ufshcd_config_pwr_mode() as a parameter Can Guo
2026-03-08 15:14 ` [PATCH v3 03/12] scsi: ufs: core: Add UFS_HS_G6 and UFS_HS_GEAR_MAX to enum ufs_hs_gear_tag Can Guo
2026-03-08 15:14 ` [PATCH v3 04/12] scsi: ufs: core: Add support for TX Equalization Can Guo
2026-03-13 22:19   ` Bart Van Assche
2026-03-14  8:19     ` Can Guo
2026-03-14  9:33       ` Can Guo
2026-03-16 16:55         ` Bart Van Assche
2026-03-17  7:04           ` Can Guo
2026-03-17  6:49   ` Peter Wang (王信友)
2026-03-17  7:22     ` Can Guo
2026-03-17  7:35       ` Can Guo
2026-03-17 13:10         ` Peter Wang (王信友)
2026-03-19  5:49           ` Can Guo
2026-03-19 12:42             ` Peter Wang (王信友)
2026-03-21  2:30               ` Can Guo
2026-03-17 13:08       ` Peter Wang (王信友)
2026-03-19  5:42         ` Can Guo
2026-03-08 15:14 ` [PATCH v3 05/12] scsi: ufs: core: Add debugfs entries for TX Equalization params Can Guo
2026-03-13 22:21   ` Bart Van Assche
2026-03-08 15:14 ` [PATCH v3 06/12] scsi: ufs: core: Add helpers to pause and resume command processing Can Guo
2026-03-13 22:26   ` Bart Van Assche
2026-03-14 10:38     ` Can Guo
2026-03-16 17:12       ` Bart Van Assche
2026-03-16 18:07       ` Bart Van Assche
2026-03-08 15:14 ` [PATCH v3 07/12] scsi: ufs: core: Add support to refresh TX Equalization via debugfs Can Guo
2026-03-13 22:30   ` Bart Van Assche
2026-03-14 10:45     ` Can Guo
2026-03-16 17:14       ` Bart Van Assche
2026-03-17 13:05         ` Peter Wang (王信友)
2026-03-19  5:36           ` Can Guo
2026-03-08 15:14 ` [PATCH v3 08/12] scsi: ufs: ufs-qcom: Fixup PAM-4 TX L0_L1_L2_L3 adaptation pattern length Can Guo
2026-03-08 15:14 ` [PATCH v3 09/12] scsi: ufs: ufs-qcom: Implement vops tx_eqtr_notify() Can Guo
2026-03-08 15:14 ` [PATCH v3 10/12] scsi: ufs: ufs-qcom: Implement vops get_rx_fom() Can Guo
2026-03-08 15:14 ` [PATCH v3 11/12] scsi: ufs: ufs-qcom: Implement vops apply_tx_eqtr_settings() Can Guo
2026-03-08 15:14 ` Can Guo [this message]
2026-03-13 21:56 ` [PATCH v3 00/12] scsi: ufs: Add TX Equalization support for UFS 5.0 Bart Van Assche
2026-03-14 10:48   ` Can Guo

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