diff options
| -rw-r--r-- | drivers/ufs/host/ufs-mediatek.c | 8 | ||||
| -rw-r--r-- | drivers/ufs/host/ufs-mediatek.h | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index b8f2a74d2a51..b15351c2235b 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -183,6 +183,14 @@ static int ufs_mtk_hce_enable_notify(struct ufs_hba *hba, hba->capabilities &= ~MASK_AUTO_HIBERN8_SUPPORT; hba->ahit = 0; } + + /* + * Turn on CLK_CG early to bypass abnormal ERR_CHK signal + * to prevent host hang issue + */ + ufshcd_writel(hba, + ufshcd_readl(hba, REG_UFS_XOUFS_CTRL) | 0x80, + REG_UFS_XOUFS_CTRL); } return 0; diff --git a/drivers/ufs/host/ufs-mediatek.h b/drivers/ufs/host/ufs-mediatek.h index 49a2137fb251..f5c1c643dd52 100644 --- a/drivers/ufs/host/ufs-mediatek.h +++ b/drivers/ufs/host/ufs-mediatek.h @@ -12,6 +12,7 @@ /* * Vendor specific UFSHCI Registers */ +#define REG_UFS_XOUFS_CTRL 0x140 #define REG_UFS_REFCLK_CTRL 0x144 #define REG_UFS_EXTREG 0x2100 #define REG_UFS_MPHYCTRL 0x2200 |