[v3,3/9] scsi: ufs: Enable IRQ after enabling clocks in error handling preparation

Message ID 1623300218-9454-4-git-send-email-cang@codeaurora.org
State Superseded
Headers show
Series
  • [v3,1/9] scsi: ufs: Differentiate status between hba pm ops and wl pm ops
Related show

Commit Message

Can Guo June 10, 2021, 4:43 a.m.
In error handling preparation, enable IRQ after enabling clocks in case
unclocked register access happens.

Fixes: c72e79c0ad2bd ("scsi: ufs: Recover HBA runtime PM error in error handler")
Signed-off-by: Can Guo <cang@codeaurora.org>
---
 drivers/scsi/ufs/ufshcd.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Patch

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index fed893e..0c9d2ee 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -5927,13 +5927,14 @@  static void ufshcd_err_handling_prepare(struct ufs_hba *hba)
 		 * can be OFF or in LPM.
 		 */
 		ufshcd_setup_hba_vreg(hba, true);
-		ufshcd_enable_irq(hba);
 		ufshcd_setup_vreg(hba, true);
 		ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq);
 		ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq2);
 		ufshcd_hold(hba, false);
-		if (!ufshcd_is_clkgating_allowed(hba))
+		if (!ufshcd_is_clkgating_allowed(hba)) {
 			ufshcd_setup_clocks(hba, true);
+			ufshcd_enable_irq(hba);
+		}
 		ufshcd_release(hba);
 		pm_op = hba->is_wl_sys_suspended ? UFS_SYSTEM_PM : UFS_RUNTIME_PM;
 		ufshcd_vops_resume(hba, pm_op);