Commit 2e083cd8 authored by anvithdosapati's avatar anvithdosapati Committed by Martin K. Petersen
Browse files

scsi: ufs: core: Fix clk scaling to be conditional in reset and restore 



In ufshcd_host_reset_and_restore(), scale up clocks only when clock
scaling is supported. Without this change CPU latency is voted for 0
(ufshcd_pm_qos_update) during resume unconditionally.

Signed-off-by: default avataranvithdosapati <anvithdosapati@google.com>
Link: https://lore.kernel.org/r/20250616085734.2133581-1-anvithdosapati@google.com


Fixes: a3cd5ec5 ("scsi: ufs: add load based scaling of UFS gear")
Cc: stable@vger.kernel.org
Reviewed-by: default avatarBart Van Assche <bvanassche@acm.org>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 752eb816

drivers/ufs/core/ufshcd.c

+2 −1
Original line number Diff line number Diff line
@@ -7807,6 +7807,7 @@ static int ufshcd_host_reset_and_restore(struct ufs_hba *hba) 
	hba->silence_err_logs = false;



	/* scale up clocks to max frequency before full reinitialization */

	if (ufshcd_is_clkscaling_supported(hba))

		ufshcd_scale_clks(hba, ULONG_MAX, true);



	err = ufshcd_hba_enable(hba);