[PATCH v2 5/7] scsi: ufs: ufs-qcom: Set initial PHY gear to max HS gear for HW ver 5 and newer

Can Guo
2023-11-07T04:47:28Z

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