[PATCH 10/20] wifi: mt76: mt792x: add tx_done ring to common DMA queue allocation

[JB Tsai <jb.tsai@mediatek.com>]

From: Emery Hsin <emery.hsin@mediatek.com>

Add a tx_done field to mt792x_dma_layout and extend
mt792x_dma_alloc_queues() to allocate the MT_RXQ_MCU_WA queue when
tx_done.ring_base is configured.

This is a preparation patch before enabling MT7928 PCIe support.

Signed-off-by: Emery Hsin <emery.hsin@mediatek.com>
---
 drivers/net/wireless/mediatek/mt76/mt792x.h     |  1 +
 drivers/net/wireless/mediatek/mt76/mt792x_dma.c | 11 +++++++++++
 2 files changed, 12 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt792x.h b/drivers/net/wireless/mediatek/mt76/mt792x.h
index eacee63e13f3..b8dc7ce38c87 100644
--- a/drivers/net/wireless/mediatek/mt76/mt792x.h
+++ b/drivers/net/wireless/mediatek/mt76/mt792x.h
@@ -217,6 +217,7 @@ struct mt792x_dma_layout {
 	struct mt792x_dma_ring tx_data0;
 	struct mt792x_dma_ring tx_mcu;
 	struct mt792x_dma_ring tx_fwdl;
+	struct mt792x_dma_ring tx_done;
 	struct mt792x_dma_ring rx_data;
 	struct mt792x_dma_ring rx_mcu;
 };
diff --git a/drivers/net/wireless/mediatek/mt76/mt792x_dma.c b/drivers/net/wireless/mediatek/mt76/mt792x_dma.c
index b090ba9cd676..4d4c62bb0a77 100644
--- a/drivers/net/wireless/mediatek/mt76/mt792x_dma.c
+++ b/drivers/net/wireless/mediatek/mt76/mt792x_dma.c
@@ -122,6 +122,17 @@ int mt792x_dma_alloc_queues(struct mt792x_dev *dev,
 	if (ret)
 		return ret;
 
+	/* tx done */
+	if (layout->tx_done.ring_base) {
+		ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MCU_WA],
+				       layout->tx_done.qid,
+				       layout->tx_done.n_desc,
+				       MT_RX_BUF_SIZE,
+				       layout->tx_done.ring_base);
+		if (ret)
+			return ret;
+	}
+
 	/* rx event */
 	ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MCU],
 			       layout->rx_mcu.qid,
-- 
2.45.2