[PATCH] soc: mediatek: knows_txdone needs to be set in Mediatek CMDQ helper

[Bibby Hsieh <bibby.hsieh@xxxxxxxxxxxx>]

Mediatek CMDQ driver have a mechanism to do TXDONE_BY_ACK,
so we should set knows_txdone.

Fixes:576f1b4bc802 ("soc: mediatek: Add Mediatek CMDQ helper")

Signed-off-by: Bibby Hsieh <bibby.hsieh@xxxxxxxxxxxx>
---
 drivers/soc/mediatek/mtk-cmdq-helper.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
index 9add0fd5fa6c..2ca1a759a347 100644
--- a/drivers/soc/mediatek/mtk-cmdq-helper.c
+++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
@@ -80,6 +80,7 @@ struct cmdq_client *cmdq_mbox_create(struct device *dev, int index, u32 timeout)
 	client->pkt_cnt = 0;
 	client->client.dev = dev;
 	client->client.tx_block = false;
+	client->client.knows_txdone = true;
 	client->chan = mbox_request_channel(&client->client, index);
 
 	if (IS_ERR(client->chan)) {
-- 
2.18.0