mt76: connac: add mt76_connac_power_save_sched in mt76_connac_pm_unref

Schedule power_save work running mt76_connac_pm_unref in order to reduce
power consumption
Tested-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7615/dma.c

@@ -81,7 +81,7 @@ static int mt7615_poll_tx(struct napi_struct *napi, int budget)
 	if (napi_complete(napi))
 		mt7615_irq_enable(dev, mt7615_tx_mcu_int_mask(dev));
 
-	mt76_connac_pm_unref(&dev->pm);
+	mt76_connac_pm_unref(&dev->mphy, &dev->pm);
 
 	return 0;
 }
@@ -99,7 +99,7 @@ static int mt7615_poll_rx(struct napi_struct *napi, int budget)
 		return 0;
 	}
 	done = mt76_dma_rx_poll(napi, budget);
-	mt76_connac_pm_unref(&dev->pm);
+	mt76_connac_pm_unref(&dev->mphy, &dev->pm);
 
 	return done;
 }

drivers/net/wireless/mediatek/mt76/mt7615/main.c

@@ -693,7 +693,7 @@ static void mt7615_sta_rate_tbl_update(struct ieee80211_hw *hw,
 	msta->n_rates = i;
 	if (mt76_connac_pm_ref(phy->mt76, &dev->pm)) {
 		mt7615_mac_set_rates(phy, msta, NULL, msta->rates);
-		mt76_connac_pm_unref(&dev->pm);
+		mt76_connac_pm_unref(phy->mt76, &dev->pm);
 	}
 	spin_unlock_bh(&dev->mt76.lock);
 }
@@ -709,7 +709,7 @@ void mt7615_tx_worker(struct mt76_worker *w)
 	}
 
 	mt76_tx_worker_run(&dev->mt76);
-	mt76_connac_pm_unref(&dev->pm);
+	mt76_connac_pm_unref(&dev->mphy, &dev->pm);
 }
 
 static void mt7615_tx(struct ieee80211_hw *hw,
@@ -739,7 +739,7 @@ static void mt7615_tx(struct ieee80211_hw *hw,
 
 	if (mt76_connac_pm_ref(mphy, &dev->pm)) {
 		mt76_tx(mphy, control->sta, wcid, skb);
-		mt76_connac_pm_unref(&dev->pm);
+		mt76_connac_pm_unref(mphy, &dev->pm);
 		return;
 	}
 

drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c

@@ -98,7 +98,7 @@ mt7615_led_set_config(struct led_classdev *led_cdev,
 	addr = mt7615_reg_map(dev, MT_LED_CTRL);
 	mt76_wr(dev, addr, val);
 
-	mt76_connac_pm_unref(&dev->pm);
+	mt76_connac_pm_unref(&dev->mphy, &dev->pm);
 }
 
 static int

drivers/net/wireless/mediatek/mt76/mt76_connac.h

@@ -117,11 +117,15 @@ mt76_connac_pm_ref(struct mt76_phy *phy, struct mt76_connac_pm *pm)
 }
 
 static inline void
-mt76_connac_pm_unref(struct mt76_connac_pm *pm)
+mt76_connac_pm_unref(struct mt76_phy *phy, struct mt76_connac_pm *pm)
 {
 	spin_lock_bh(&pm->wake.lock);
-	pm->wake.count--;
+
 	pm->last_activity = jiffies;
+	if (--pm->wake.count == 0 &&
+	    test_bit(MT76_STATE_MCU_RUNNING, &phy->state))
+		mt76_connac_power_save_sched(phy, pm);
+
 	spin_unlock_bh(&pm->wake.lock);
 }
 

drivers/net/wireless/mediatek/mt76/mt7921/dma.c

@@ -74,7 +74,7 @@ static int mt7921_poll_tx(struct napi_struct *napi, int budget)
 	mt7921_tx_cleanup(dev);
 	if (napi_complete(napi))
 		mt7921_irq_enable(dev, MT_INT_TX_DONE_ALL);
-	mt76_connac_pm_unref(&dev->pm);
+	mt76_connac_pm_unref(&dev->mphy, &dev->pm);
 
 	return 0;
 }
@@ -92,7 +92,7 @@ static int mt7921_poll_rx(struct napi_struct *napi, int budget)
 		return 0;
 	}
 	done = mt76_dma_rx_poll(napi, budget);
-	mt76_connac_pm_unref(&dev->pm);
+	mt76_connac_pm_unref(&dev->mphy, &dev->pm);
 
 	return done;
 }

drivers/net/wireless/mediatek/mt76/mt7921/main.c

@@ -679,7 +679,7 @@ void mt7921_tx_worker(struct mt76_worker *w)
 	}
 
 	mt76_txq_schedule_all(&dev->mphy);
-	mt76_connac_pm_unref(&dev->pm);
+	mt76_connac_pm_unref(&dev->mphy, &dev->pm);
 }
 
 static void mt7921_tx(struct ieee80211_hw *hw,
@@ -709,7 +709,7 @@ static void mt7921_tx(struct ieee80211_hw *hw,
 
 	if (mt76_connac_pm_ref(mphy, &dev->pm)) {
 		mt76_tx(mphy, control->sta, wcid, skb);
-		mt76_connac_pm_unref(&dev->pm);
+		mt76_connac_pm_unref(mphy, &dev->pm);
 		return;
 	}