[PATCH v2 1/3] scsi: ufs: Do not overwrite Auto-Hibernate timer

[Stanley Chu]

Some vendor-specific initialization flow may set its own
auto-hibernate timer. In this case, do not overwrite timer value
as "default value" in ufshcd_init().

Signed-off-by: Stanley Chu <stanley....@mediatek.com>
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index e040f9dd9ff3..1665820c22fd 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8309,7 +8309,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem 
*mmio_base, unsigned int irq)
                                                UIC_LINK_HIBERN8_STATE);
 
        /* Set the default auto-hiberate idle timer value to 150 ms */
-       if (hba->capabilities & MASK_AUTO_HIBERN8_SUPPORT) {
+       if (hba->capabilities & MASK_AUTO_HIBERN8_SUPPORT & !hba->ahit) {
                hba->ahit = FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, 150) |
                            FIELD_PREP(UFSHCI_AHIBERN8_SCALE_MASK, 3);
        }
-- 
2.18.0