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[2/2] mt76: mt7921s: fix suspend error with enlarging mcu timeout value

Message ID 13f6e51cd22a8a18e8f14e1213c299805ce37e14.1639239996.git.objelf@gmail.com (mailing list archive)
State New, archived
Headers show
Series [1/2] mt76: mt7921s: make pm->suspended usage consistent | expand

Commit Message

Sean Wang Dec. 11, 2021, 4:31 p.m. UTC 
From: Sean Wang <sean.wang@mediatek.com>

Fix the false positive suspend error that may occur on mt7921s
with enlarging mcu timeout value.

The reason why we have to enlarge mcu timeout from HZ / 3 to HZ is
we should consider the additional overhead caused by running
concurrently with btmtksdio (a MT7921 bluetooth SDIO driver) that
would compete for the same SDIO bus in process context to complete
the suspend procedure.

Fixes: 48fab5bbef40 ("mt76: mt7921: introduce mt7921s support")
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
 drivers/net/wireless/mediatek/mt76/mt7921/mcu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
index 1227d626e9d3..be87e134216b 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
@@ -239,7 +239,7 @@  int mt7921_mcu_fill_message(struct mt76_dev *mdev, struct sk_buff *skb,
 	case MCU_UNI_CMD_HIF_CTRL:
 	case MCU_UNI_CMD_SUSPEND:
 	case MCU_UNI_CMD_OFFLOAD:
-		mdev->mcu.timeout = HZ / 3;
+		mdev->mcu.timeout = HZ;
 		break;
 	default:
 		mdev->mcu.timeout = 3 * HZ;