wifi: mt76: mt7925: Simplify HIF suspend handling to avoid suspend fail

JIRA: https://issues.redhat.com/browse/RHEL-89168

commit bf39813
Author: Quan Zhou <[email protected]>
Date:   Mon Feb 24 21:05:14 2025 +0800

    wifi: mt76: mt7925: Simplify HIF suspend handling to avoid suspend fail
    
    System suspend failures may occur due to inappropriate
    handling of traffic not idle event by the WiFi driver.
    The WiFi firmware's traffic not idle indication does
    not need to be tied to suspend. Fix the flow to ensuring
    the system can suspend properly.
    
    Signed-off-by: Quan Zhou <[email protected]>
    Link: https://patch.msgid.link/34208c7280325f57a651363d339399eb1744d3b7.1740400998.git.quan.zhou@mediatek.com
    Signed-off-by: Felix Fietkau <[email protected]>

Signed-off-by: Jose Ignacio Tornos Martinez <[email protected]>

Author: jtornosm

drivers/net/wireless/mediatek/mt76/mt7925/mcu.c

@@ -348,14 +348,10 @@ mt7925_mcu_handle_hif_ctrl_basic(struct mt792x_dev *dev, struct tlv *tlv)
 	basic = (struct mt7925_mcu_hif_ctrl_basic_tlv *)tlv;
 
 	if (basic->hifsuspend) {
-		if (basic->hif_tx_traffic_status == HIF_TRAFFIC_IDLE &&
-		    basic->hif_rx_traffic_status == HIF_TRAFFIC_IDLE)
-			/* success */
-			dev->hif_idle = true;
-		else
-			/* busy */
-			/* invalid */
-			dev->hif_idle = false;
+		dev->hif_idle = true;
+		if (!(basic->hif_tx_traffic_status == HIF_TRAFFIC_IDLE &&
+		      basic->hif_rx_traffic_status == HIF_TRAFFIC_IDLE))
+			dev_info(dev->mt76.dev, "Hif traffic not idle.\n");
 	} else {
 		dev->hif_resumed = true;
 	}