renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-20 19:23:57 +08:00
Code

scsi: ufs: disable interrupt during clock-gating

Browse Source 
Similar to suspend, ufshcd interrupt can be disabled since there won't be
any host controller transaction expected till clocks ungated.

Link: https://lore.kernel.org/r/1575721321-8071-3-git-send-email-stanley.chu@mediatek.com
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Stanley Chu 2019-12-07 20:22:01 +08:00 committed by Martin K. Petersen
parent dcb6cec508
commit 8b0bbf002a
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/scsi/ufs/ufshcd.c
View File

@ -1466,6 +1466,8 @@ static void ufshcd_ungate_work(struct work_struct *work)
spin_unlock_irqrestore(hba->host->host_lock, flags);
ufshcd_setup_clocks(hba, true);
ufshcd_enable_irq(hba);
/* Exit from hibern8 */
if (ufshcd_can_hibern8_during_gating(hba)) {
/* Prevent gating in this path */
@ -1612,6 +1614,8 @@ static void ufshcd_gate_work(struct work_struct *work)
ufshcd_set_link_hibern8(hba);
}
ufshcd_disable_irq(hba);
if (!ufshcd_is_link_active(hba))
ufshcd_setup_clocks(hba, false);
else