scsi: ufs: ufs-qcom: Enable TX Equalization

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

Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Can Guo <can.guo@oss.qualcomm.com>
Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Link: https://patch.msgid.link/20260325152154.1604082-13-can.guo@oss.qualcomm.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
index 9abdeeee81f7d850964f0096ae8d467d45de895f..5a58ffef3d2744765e512e698507bece9b878c5d 100644 (file)
--- a/drivers/ufs/host/ufs-qcom.c
+++ b/drivers/ufs/host/ufs-qcom.c
@@ -1384,6 +1384,8 @@ 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;
@@ -1391,6 +1393,9 @@ 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);
 }