[PATCH v1] Bluetooth: btusb: fix bt fiwmare downloading failure issue for qca btsoc.

[Zijun Hu]

From: Tim Jiang <tjiang@xxxxxxxxxxxxxx>

This is btsoc timing issue, host add 20ms delay as workaround.

Signed-off-by: Tim Jiang <tjiang@xxxxxxxxxxxxxx>
---
 drivers/bluetooth/btusb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 5245714..b0743db 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -4064,6 +4064,7 @@ static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
 
 	sent += size;
 	count -= size;
+	msleep(20);
 
 	while (count) {
 		size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
-- 
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