In case of BT turn off from UI it is safe to add HCI reset command
which will maintain the controller state.
Signed-off-by: Amit K Bag <amit.k.bag@xxxxxxxxx>
---
drivers/bluetooth/btusb.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 572fd75fbcf6..599ec9b12d3f 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -2369,6 +2369,18 @@ static int btusb_shutdown_intel(struct hci_dev *hdev)
struct sk_buff *skb;
long ret;
+ /* In case of BT off from UI it is safe to do HCI reset.
+ * This will maintain the controller state.
+ */
+ skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ ret = PTR_ERR(skb);
+ BT_ERR("%s: BT controller HCI reset failed (%ld)",
+ hdev->name, ret);
+ return ret;
+ }
+ kfree_skb(skb);
+
/* Some platforms have an issue with BT LED when the interface is
* down or BT radio is turned off, which takes 5 seconds to BT LED
* goes off. This command turns off the BT LED immediately.
--
2.7.4
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