[PATCH] ufs: Disable UTP command timeout in slow mode

[Michal Simek]

From: Padmarao Begari <padmarao.begari at amd.com>

When the UFS controller is operating in slow (PWM) mode,
the driver is disabled the timeout for UTP send commands.
In high-speed mode, the timeout remains enabled to
detect stalled or failed transfers. This change ensures reliable
operation in slow mode, where command completion may take longer
and timeouts are not required.

Signed-off-by: Padmarao Begari <padmarao.begari at amd.com>
Signed-off-by: Michal Simek <michal.simek at amd.com>
---

 drivers/ufs/ufs-uclass.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/ufs/ufs-uclass.c b/drivers/ufs/ufs-uclass.c
index 3c8e4299259c..7a80a9d5664b 100644
--- a/drivers/ufs/ufs-uclass.c
+++ b/drivers/ufs/ufs-uclass.c
@@ -917,11 +917,13 @@ static int ufshcd_send_command(struct ufs_hba *hba, unsigned int task_tag)
 		enabled_intr_status = intr_status & hba->intr_mask;
 		ufshcd_writel(hba, intr_status, REG_INTERRUPT_STATUS);
 
-		if (get_timer(start) > QUERY_REQ_TIMEOUT) {
-			dev_err(hba->dev,
-				"Timedout waiting for UTP response\n");
-
-			return -ETIMEDOUT;
+		if (hba->max_pwr_info.info.pwr_rx != SLOWAUTO_MODE &&
+		    hba->max_pwr_info.info.pwr_tx != SLOWAUTO_MODE) {
+			if (get_timer(start) > QUERY_REQ_TIMEOUT) {
+				dev_err(hba->dev,
+					"Timedout waiting for UTP response\n");
+				return -ETIMEDOUT;
+			}
 		}
 
 		if (enabled_intr_status & UFSHCD_ERROR_MASK) {
-- 
2.43.0

base-commit: 966dbf4bdcb2970846eaf61271ad456aa802688b
branch: debian-sent3