Commit a44ff97f authored by Peter Wang's avatar Peter Wang Committed by Martin K. Petersen
Browse files

scsi: ufs: host: mediatek: Handle broken RTC based on DTS setting 



Introduce a mechanism to handle broken RTC by checking the DTS
setting. The configuration is specifically required for legacy platform.

Signed-off-by: default avatarPeter Wang <peter.wang@mediatek.com>
Link: https://lore.kernel.org/r/20250722030841.1998783-5-peter.wang@mediatek.com


Reviewed-by: default avatarChun-Hung Wu <chun-hung.wu@mediatek.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 16b30c7a

drivers/ufs/host/ufs-mediatek.c

+7 −1
Original line number Diff line number Diff line
@@ -679,6 +679,9 @@ static void ufs_mtk_init_host_caps(struct ufs_hba *hba) 
	if (of_property_read_bool(np, "mediatek,ufs-rtff-mtcmos"))

		host->caps |= UFS_MTK_CAP_RTFF_MTCMOS;



	if (of_property_read_bool(np, "mediatek,ufs-broken-rtc"))

		host->caps |= UFS_MTK_CAP_MCQ_BROKEN_RTC;



	dev_info(hba->dev, "caps: 0x%x", host->caps);

}
@@ -1035,8 +1038,11 @@ static int ufs_mtk_init(struct ufs_hba *hba) 
	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;

	if (host->caps & UFS_MTK_CAP_MCQ_BROKEN_RTC)

		hba->quirks |= UFSHCD_QUIRK_MCQ_BROKEN_RTC;



	hba->vps->wb_flush_threshold = UFS_WB_BUF_REMAIN_PERCENT(80);



	if (host->caps & UFS_MTK_CAP_DISABLE_AH8)

drivers/ufs/host/ufs-mediatek.h

+2 −0
Original line number Diff line number Diff line
@@ -133,6 +133,8 @@ enum ufs_mtk_host_caps { 
	UFS_MTK_CAP_DISABLE_MCQ                = 1 << 8,

	/* Control MTCMOS with RTFF */

	UFS_MTK_CAP_RTFF_MTCMOS                = 1 << 9,



	UFS_MTK_CAP_MCQ_BROKEN_RTC             = 1 << 10,

};



struct ufs_mtk_crypt_cfg {