From: Wen-chien Jesse Sung <jesse.sung@canonical.com>
Date: Tue, 10 Jan 2017 03:46:28 +0000 (+0800)
Subject: Bluetooth: btbcm: Add a delay for module reset
X-Git-Tag: v4.11-rc1~124^2~24^2~7
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=3af3a594e111474fab03d872f41760e10d4c17c4;p=linux.git

Bluetooth: btbcm: Add a delay for module reset

Some btbcm devices require more time to complete its reset process.
They won't reply any hci command until reset is done.

[ 17.218554] Bluetooth: hci0 command 0x1001 tx timeout
[ 25.214999] Bluetooth: hci0: BCM: Reading local version info failed (-110)

Signed-off-by: Wen-chien Jesse Sung <jesse.sung@canonical.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---

diff --git a/drivers/bluetooth/btbcm.c b/drivers/bluetooth/btbcm.c
index fdb44829ab6f..ba3dd2eafc09 100644
--- a/drivers/bluetooth/btbcm.c
+++ b/drivers/bluetooth/btbcm.c
@@ -178,6 +178,9 @@ static int btbcm_reset(struct hci_dev *hdev)
 	}
 	kfree_skb(skb);
 
+	/* 100 msec delay for module to complete reset process */
+	msleep(100);
+
 	return 0;
 }