On 6/16/25 1:57 AM, Anvith Dosapati wrote:

From: anvithdosapati anvithdosapati@google.com

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: anvithdosapati anvithdosapati@google.com Fixes: a3cd5ec55f6c7 ("scsi: ufs: add load based scaling of UFS gear") Cc: stable@vger.kernel.org

---

v2:

• Update commit message

• Add Fixes and Cc stable

  drivers/ufs/core/ufshcd.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 4410e7d93b7d..fac381ea2b3a 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -7802,7 +7802,8 @@ 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 */

• ufshcd_scale_clks(hba, ULONG_MAX, true);

• if (ufshcd_is_clkscaling_supported(hba))

• ufshcd_scale_clks(hba, ULONG_MAX, true);
  

err = ufshcd_hba_enable(hba);

Reviewed-by: Bart Van Assche bvanassche@acm.org