scsi: core: Clean up struct ufs_saved_pwr_info

The "is_valid" field of the struct ufs_saved_pwr_info is no longer used,
and this struct can be replaced by struct ufs_pa_layer_attr without any
changes to the functionality.
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Link: https://lore.kernel.org/r/20230330012918.13748-1-stanley.chu@mediatek.comReviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/ufs/core/ufshcd.c

@@ -1269,7 +1269,7 @@ static int ufshcd_scale_gear(struct ufs_hba *hba, bool scale_up)
 	struct ufs_pa_layer_attr new_pwr_info;
 
 	if (scale_up) {
-		memcpy(&new_pwr_info, &hba->clk_scaling.saved_pwr_info.info,
+		memcpy(&new_pwr_info, &hba->clk_scaling.saved_pwr_info,
 		       sizeof(struct ufs_pa_layer_attr));
 	} else {
 		memcpy(&new_pwr_info, &hba->pwr_info,
@@ -1278,7 +1278,7 @@ static int ufshcd_scale_gear(struct ufs_hba *hba, bool scale_up)
 		if (hba->pwr_info.gear_tx > hba->clk_scaling.min_gear ||
 		    hba->pwr_info.gear_rx > hba->clk_scaling.min_gear) {
 			/* save the current power mode */
-			memcpy(&hba->clk_scaling.saved_pwr_info.info,
+			memcpy(&hba->clk_scaling.saved_pwr_info,
 				&hba->pwr_info,
 				sizeof(struct ufs_pa_layer_attr));
 
@@ -10349,10 +10349,9 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 
 	/* Initialize devfreq */
 	if (ufshcd_is_clkscaling_supported(hba)) {
-		memcpy(&hba->clk_scaling.saved_pwr_info.info,
+		memcpy(&hba->clk_scaling.saved_pwr_info,
 			&hba->pwr_info,
 			sizeof(struct ufs_pa_layer_attr));
-		hba->clk_scaling.saved_pwr_info.is_valid = true;
 		hba->clk_scaling.is_allowed = true;
 
 		err = ufshcd_devfreq_init(hba);

include/ufs/ufshcd.h

@@ -394,11 +394,6 @@ struct ufs_clk_gating {
 	struct workqueue_struct *clk_gating_workq;
 };
 
-struct ufs_saved_pwr_info {
-	struct ufs_pa_layer_attr info;
-	bool is_valid;
-};
-
 /**
  * struct ufs_clk_scaling - UFS clock scaling related data
  * @active_reqs: number of requests that are pending. If this is zero when
@@ -428,7 +423,7 @@ struct ufs_clk_scaling {
 	ktime_t window_start_t;
 	ktime_t busy_start_t;
 	struct device_attribute enable_attr;
-	struct ufs_saved_pwr_info saved_pwr_info;
+	struct ufs_pa_layer_attr saved_pwr_info;
 	struct workqueue_struct *workq;
 	struct work_struct suspend_work;
 	struct work_struct resume_work;