Commit 8b0bbf00 authored by Stanley Chu's avatar Stanley Chu Committed by Martin K. Petersen
Browse files

scsi: ufs: disable interrupt during clock-gating 

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: default avatarAsutosh Das <asutoshd@codeaurora.org>
Reviewed-by: default avatarAvri Altman <avri.altman@wdc.com>
Signed-off-by: default avatarStanley Chu <stanley.chu@mediatek.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent dcb6cec5

drivers/scsi/ufs/ufshcd.c

+4 −0
Original line number Diff line number Diff line
@@ -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

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