diff mbox series

[v3,1/3] scsi: ufs: Do not overwrite Auto-Hibernate timer

Message ID 1558341138-18043-2-git-send-email-stanley.chu@mediatek.com (mailing list archive)
State New, archived
Headers show
Series scsi: ufs: Add error handling of Auto-Hibernate | expand

Commit Message

Stanley Chu May 20, 2019, 8:32 a.m. UTC 
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.chu@mediatek.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 8c1c551f2b42..ba04d07df279 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8312,7 +8312,7 @@  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);
 	}