diff mbox series

[24/26] mt76x0: pci: add mt76x0e_stop callback

Message ID 4fa502576a4fe7f837383207eceaee8a15e51d50.1538036134.git.lorenzo.bianconi@redhat.com (mailing list archive)
State Changes Requested
Delegated to: Kalle Valo
Headers show
Series add mt76x0e hw initialization support | expand

Commit Message

Lorenzo Bianconi Sept. 27, 2018, 9:01 a.m. UTC 
Introduce mt76x0e_stop mac80211 callback to stop
device mac closing the netdevice

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
---
 .../wireless/mediatek/mt76/mt76x0/pci_init.c    | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/pci_init.c b/drivers/net/wireless/mediatek/mt76/mt76x0/pci_init.c
index d2b98a773660..29751b6ee470 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x0/pci_init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x0/pci_init.c
@@ -37,6 +37,23 @@  static int mt76x0e_start(struct ieee80211_hw *hw)
 
 static void mt76x0e_stop(struct ieee80211_hw *hw)
 {
+	struct mt76x0_dev *dev = hw->priv;
+
+	mutex_lock(&dev->mt76.mutex);
+
+	if (!mt76_poll(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_TX_DMA_BUSY,
+		       0, 1000))
+		dev_warn(dev->mt76.dev, "TX DMA did not stop\n");
+	mt76_clear(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_TX_DMA_EN);
+
+	mt76x0_stop(dev);
+
+	if (!mt76_poll(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_RX_DMA_BUSY,
+		       0, 1000))
+		dev_warn(dev->mt76.dev, "TX DMA did not stop\n");
+	mt76_clear(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_RX_DMA_EN);
+
+	mutex_unlock(&dev->mt76.mutex);
 }
 
 const struct ieee80211_ops mt76x0e_ops = {