[PATCH AUTOSEL 5.18 50/54] scsi: ufs: core: Fix missing clk change notification on host reset

Sasha Levin sashal at kernel.org
Tue Jul 19 18:10:27 PDT 2022


From: Po-Wen Kao <powen.kao at mediatek.com>

[ Upstream commit 52a518019ca187227b786f8b8ee20869a97f3af4 ]

In ufshcd_host_reset_and_restore(), ufshcd_set_clk_freq() is called to
scale clock rate. However, this did not call vops->clk_scale_notify() to
inform platform driver of clock change.

Call ufshcd_scale_clks() instead so that clock change can be properly
handled.

Link: https://lore.kernel.org/r/20220711144224.17916-2-powen.kao@mediatek.com
Reviewed-by: Bart Van Assche <bvanassche at acm.org>
Reviewed-by: Stanley Chu <stanley.chu at mediatek.com>
Signed-off-by: Po-Wen Kao <powen.kao at mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen at oracle.com>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 4c9eb4be449c..be7b03a90cb3 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7235,7 +7235,7 @@ 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 */
-	ufshcd_set_clk_freq(hba, true);
+	ufshcd_scale_clks(hba, true);
 
 	err = ufshcd_hba_enable(hba);
 
-- 
2.35.1




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