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From: Can Guo <cang@qti.qualcomm.com>
To: quic_cang@quicinc.com, bvanassche@acm.org, mani@kernel.org,
	stanley.chu@mediatek.com, adrian.hunter@intel.com,
	beanhuo@micron.com, avri.altman@wdc.com,
	junwoo80.lee@samsung.com, martin.petersen@oracle.com
Cc: linux-scsi@vger.kernel.org, Andy Gross <agross@kernel.org>,
	Bjorn Andersson <andersson@kernel.org>,
	Konrad Dybcio <konrad.dybcio@linaro.org>,
	"James E.J. Bottomley" <jejb@linux.ibm.com>,
	linux-arm-msm@vger.kernel.org (open list:UNIVERSAL FLASH STORAGE
	HOST CONTROLLER DRIVER...),
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v2 5/7] scsi: ufs: ufs-qcom: Set initial PHY gear to max HS gear for HW ver 5 and newer
Date: Mon,  6 Nov 2023 20:46:11 -0800	[thread overview]
Message-ID: <1699332374-9324-6-git-send-email-cang@qti.qualcomm.com> (raw)
In-Reply-To: <1699332374-9324-1-git-send-email-cang@qti.qualcomm.com>

From: Can Guo <quic_cang@quicinc.com>

Set the initial PHY gear to max HS gear for hosts with HW ver 5 and newer.

This patch is not changing any functionalities or logic but only a
preparation patch for the next patch in this series.

Signed-off-by: Can Guo <quic_cang@quicinc.com>
---
 drivers/ufs/host/ufs-qcom.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
index 55ee31d..94d34b5 100644
--- a/drivers/ufs/host/ufs-qcom.c
+++ b/drivers/ufs/host/ufs-qcom.c
@@ -1069,6 +1069,14 @@ static void ufs_qcom_set_host_params(struct ufs_hba *hba)
 
 	/* This driver only supports symmetic gear setting i.e., hs_tx_gear == hs_rx_gear */
 	host_params->hs_tx_gear = host_params->hs_rx_gear = ufs_qcom_get_hs_gear(hba);
+	host->phy_gear = host_params->hs_tx_gear;
+
+	/*
+	 * Power up the PHY using the minimum supported gear (UFS_HS_G2).
+	 * Switching to max gear will be performed during reinit if supported.
+	 */
+	if (host->hw_ver.major < 0x5)
+		host->phy_gear = UFS_HS_G2;
 }
 
 static void ufs_qcom_set_caps(struct ufs_hba *hba)
@@ -1313,12 +1321,6 @@ static int ufs_qcom_init(struct ufs_hba *hba)
 		dev_warn(dev, "%s: failed to configure the testbus %d\n",
 				__func__, err);
 
-	/*
-	 * Power up the PHY using the minimum supported gear (UFS_HS_G2).
-	 * Switching to max gear will be performed during reinit if supported.
-	 */
-	host->phy_gear = UFS_HS_G2;
-
 	return 0;
 
 out_variant_clear:
-- 
2.7.4


  parent reply	other threads:[~2023-11-07  4:47 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1699332374-9324-1-git-send-email-cang@qti.qualcomm.com>
2023-11-07  4:46 ` [PATCH v2 1/7] scsi: ufs: host: Rename structure ufs_dev_params to ufs_host_params Can Guo
2023-11-07 19:36   ` Andrew Halaney
2023-11-08  7:44     ` Can Guo
2023-11-07 20:56   ` Bart Van Assche
2023-11-08  7:48     ` Can Guo
2023-11-07  4:46 ` [PATCH v2 2/7] scsi: ufs: ufs-qcom: Setup host power mode during init Can Guo
2023-11-07 20:14   ` Andrew Halaney
2023-11-08  7:47     ` Can Guo
2023-11-08  5:07   ` Manivannan Sadhasivam
2023-11-08  8:07     ` Can Guo
2023-11-07  4:46 ` [PATCH v2 3/7] scsi: ufs: ufs-qcom: Allow the first init start with the maximum supported gear Can Guo
2023-11-08  5:23   ` Manivannan Sadhasivam
2023-11-08  8:21     ` Can Guo
2023-11-08  8:23       ` Can Guo
2023-11-09  3:47       ` Manivannan Sadhasivam
2023-11-09  4:07         ` Can Guo
2023-11-09  7:47           ` Manivannan Sadhasivam
2023-11-07  4:46 ` [PATCH v2 4/7] scsi: ufs: ufs-qcom: Limit HS-G5 Rate-A to hosts with HW version 5 Can Guo
2023-11-08  5:25   ` Manivannan Sadhasivam
2023-11-08  8:42     ` Can Guo
2023-11-09  3:27       ` Manivannan Sadhasivam
2023-11-07  4:46 ` Can Guo [this message]
2023-11-08  5:34   ` [PATCH v2 5/7] scsi: ufs: ufs-qcom: Set initial PHY gear to max HS gear for HW ver 5 and newer Manivannan Sadhasivam
2023-11-08  8:46     ` Can Guo
2023-11-07  4:46 ` [PATCH v2 6/7] phy: qualcomm: phy-qcom-qmp-ufs: Add High Speed Gear 5 support for SM8550 Can Guo
2023-11-07 13:18   ` Dmitry Baryshkov
2023-11-08  5:49     ` Manivannan Sadhasivam
2023-11-08  6:56       ` Dmitry Baryshkov
2023-11-09  3:24         ` Manivannan Sadhasivam
2023-11-09  9:40           ` Dmitry Baryshkov
2023-11-09 10:42             ` Manivannan Sadhasivam
2023-11-09 11:00               ` Dmitry Baryshkov
2023-11-09 16:04                 ` Manivannan Sadhasivam
2023-11-09 22:11                   ` Dmitry Baryshkov
2023-11-10 13:18                     ` Manivannan Sadhasivam
2023-11-10 14:40                       ` Can Guo
2023-11-11  4:12                         ` Manivannan Sadhasivam
2023-11-12  5:13                           ` Can Guo
2023-11-14  6:12                             ` Manivannan Sadhasivam
2023-11-14  9:15                             ` Dmitry Baryshkov
2023-11-15  7:51                               ` Can Guo
2023-11-08  9:19       ` Can Guo
2023-11-09  3:26         ` Manivannan Sadhasivam
2023-11-08  9:02     ` Can Guo
2023-11-10  8:47   ` neil.armstrong
2023-11-10  9:03     ` Can Guo
2023-11-10  9:17       ` neil.armstrong
2023-11-10  9:32         ` Can Guo
2023-11-10  9:35           ` neil.armstrong
2023-11-07  4:46 ` [PATCH v2 7/7] scsi: ufs: ufs-qcom: Add support for UFS device version detection Can Guo

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