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authorNeeraj Sanjay Kale <neeraj.sanjaykale@nxp.com>2024-12-20 18:32:52 +0530
committerLuiz Augusto von Dentz <luiz.von.dentz@intel.com>2025-01-08 11:14:02 -0500
commit8023dd2204254a70887f5ee58d914bf70a060b9d (patch)
treec6261044f46e384fa13ac1dfc97a299dc06097f6
parenta182d9c84f9c52fb5db895ecceeee8b3a1bf661e (diff)
Bluetooth: btnxpuart: Fix driver sending truncated data
This fixes the apparent controller hang issue seen during stress test where the host sends a truncated payload, followed by HCI commands. The controller treats these HCI commands as a part of previously truncated payload, leading to command timeouts. Adding a serdev_device_wait_until_sent() call after serdev_device_write_buf() fixed the issue. Fixes: 689ca16e5232 ("Bluetooth: NXP: Add protocol support for NXP Bluetooth chipsets") Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
-rw-r--r--drivers/bluetooth/btnxpuart.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/bluetooth/btnxpuart.c b/drivers/bluetooth/btnxpuart.c
index 569f5b7d6e46..1230045d78a5 100644
--- a/drivers/bluetooth/btnxpuart.c
+++ b/drivers/bluetooth/btnxpuart.c
@@ -1381,6 +1381,7 @@ static void btnxpuart_tx_work(struct work_struct *work)
while ((skb = nxp_dequeue(nxpdev))) {
len = serdev_device_write_buf(serdev, skb->data, skb->len);
+ serdev_device_wait_until_sent(serdev, 0);
hdev->stat.byte_tx += len;
skb_pull(skb, len);