Re: [PATCH 2/2] scsi: ufs: ufs-qcom: Rename "hs_gear" to "phy_gear"

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On 9/8/2023 10:53 PM, Manivannan Sadhasivam wrote:
The "hs_gear" variable is used to cache the gear setting for the PHY that
will be used during ufs_qcom_power_up_sequence(). But it creates ambiguity
with the gear setting used by the ufshcd driver.

So let's rename it to "phy_gear" to make it explicit that this variable
caches the gear setting for the PHY.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
---
  drivers/ufs/host/ufs-qcom.c | 14 +++++++-------
  drivers/ufs/host/ufs-qcom.h |  2 +-
  2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
index ebb8054a3b3e..93a72d0a1751 100644
--- a/drivers/ufs/host/ufs-qcom.c
+++ b/drivers/ufs/host/ufs-qcom.c
@@ -460,7 +460,7 @@ static int ufs_qcom_power_up_sequence(struct ufs_hba *hba)
  		return ret;
  	}
- phy_set_mode_ext(phy, PHY_MODE_UFS_HS_B, host->hs_gear);
+	phy_set_mode_ext(phy, PHY_MODE_UFS_HS_B, host->phy_gear);
/* power on phy - start serdes and phy's power and clocks */
  	ret = phy_power_on(phy);
@@ -910,12 +910,12 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
  		}
/*
-		 * Update hs_gear only when the gears are scaled to a higher value. This is because,
-		 * the PHY gear settings are backwards compatible and we only need to change the PHY
-		 * settings while scaling to higher gears.
+		 * Update phy_gear only when the gears are scaled to a higher value. This is
+		 * because, the PHY gear settings are backwards compatible and we only need to
+		 * change the PHY gear settings while scaling to higher gears.
  		 */
-		if (dev_req_params->gear_tx > host->hs_gear)
-			host->hs_gear = dev_req_params->gear_tx;
+		if (dev_req_params->gear_tx > host->phy_gear)
+			host->phy_gear = dev_req_params->gear_tx;
/* enable the device ref clock before changing to HS mode */
  		if (!ufshcd_is_hs_mode(&hba->pwr_info) &&
@@ -1282,7 +1282,7 @@ static int ufs_qcom_init(struct ufs_hba *hba)
  	 * Power up the PHY using the minimum supported gear (UFS_HS_G2).
  	 * Switching to max gear will be performed during reinit if supported.
  	 */
-	host->hs_gear = UFS_HS_G2;
+	host->phy_gear = UFS_HS_G2;
return 0; diff --git a/drivers/ufs/host/ufs-qcom.h b/drivers/ufs/host/ufs-qcom.h
index dc27395ecba1..8d8613eff959 100644
--- a/drivers/ufs/host/ufs-qcom.h
+++ b/drivers/ufs/host/ufs-qcom.h
@@ -227,7 +227,7 @@ struct ufs_qcom_host {
struct gpio_desc *device_reset; - u32 hs_gear;
+	u32 phy_gear;
int esi_base;
  	bool esi_enabled;

Reviewed-by: Can Guo <quic_cang@xxxxxxxxxxx>

Tested-by: Can Guo <quic_cang@xxxxxxxxxxx>




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