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

Message ID 20230908145329.154024-2-manivannan.sadhasivam@linaro.org (mailing list archive)
State Accepted
Commit 5a738cfe49b2cc0896353c0b33dc5cc81316aabe
Headers show
Series [1/2] scsi: ufs: ufs-qcom: Update PHY settings only when scaling to higher gears | expand

Commit Message

Manivannan Sadhasivam Sept. 8, 2023, 2:53 p.m. UTC
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@linaro.org>
---
 drivers/ufs/host/ufs-qcom.c | 14 +++++++-------
 drivers/ufs/host/ufs-qcom.h |  2 +-
 2 files changed, 8 insertions(+), 8 deletions(-)

Comments

Can Guo Sept. 11, 2023, 5:56 a.m. UTC | #1
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@linaro.org>
> ---
>   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@quicinc.com>

Tested-by: Can Guo <quic_cang@quicinc.com>
diff mbox series

Patch

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;