FROMLIST: ufs: host: mediatek: change default auto suspend timer

Mediatek ufs driver change default auto suspend timer from 2000 ms
to 500 ms.

Bug: 322942047
Link: https://lore.kernel.org/all/20240109124015.31359-3-peter.wang@mediatek.com/

Change-Id: Ic30bbf5e30b649f83f6de6d97fc402a010f7319a
Signed-off-by: Peter Wang <peter.wang@mediatek.com>

Author: ptr324

drivers/ufs/host/ufs-mediatek.c

@@ -893,6 +893,7 @@ static int ufs_mtk_init(struct ufs_hba *hba)
 	const struct of_device_id *id;
 	struct device *dev = hba->dev;
 	struct ufs_mtk_host *host;
+	struct Scsi_Host *shost = hba->host;
 	int err = 0;
 
 	host = devm_kzalloc(dev, sizeof(*host), GFP_KERNEL);
@@ -937,6 +938,9 @@ static int ufs_mtk_init(struct ufs_hba *hba)
 	/* Enable clk scaling*/
 	hba->caps |= UFSHCD_CAP_CLK_SCALING;
 
+	/* Set runtime pm delay to replace default */
+	shost->rpm_autosuspend_delay = MTK_RPM_AUTOSUSPEND_DELAY_MS;
+
 	hba->quirks |= UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL;
 	hba->quirks |= UFSHCD_QUIRK_MCQ_BROKEN_INTR;
 	hba->quirks |= UFSHCD_QUIRK_MCQ_BROKEN_RTC;

drivers/ufs/host/ufs-mediatek.h

@@ -190,6 +190,9 @@ struct ufs_mtk_host {
 	struct ufs_mtk_mcq_intr_info mcq_intr_info[UFSHCD_MAX_Q_NR];
 };
 
+/* MTK delay of autosuspend: 500 ms */
+#define MTK_RPM_AUTOSUSPEND_DELAY_MS 500
+
 /*
  * Multi-VCC by Numbering
  */