From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Tim Jiang <tjiang@codeaurora.org>,
Marcel Holtmann <marcel@holtmann.org>,
Sasha Levin <sashal@kernel.org>,
linux-bluetooth@vger.kernel.org
Subject: [PATCH AUTOSEL 5.12 152/160] Bluetooth: btusb: fix bt fiwmare downloading failure issue for qca btsoc.
Date: Tue, 6 Jul 2021 07:18:18 -0400 [thread overview]
Message-ID: <20210706111827.2060499-152-sashal@kernel.org> (raw)
In-Reply-To: <20210706111827.2060499-1-sashal@kernel.org>
From: Tim Jiang <tjiang@codeaurora.org>
[ Upstream commit 4f00bfb372674d586c4a261bfc595cbce101fbb6 ]
This is btsoc timing issue, after host start to downloading bt firmware,
ep2 need time to switch from function acl to function dfu, so host add
20ms delay as workaround.
Signed-off-by: Tim Jiang <tjiang@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/bluetooth/btusb.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 64b0e68c68eb..a97e5c476adf 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -4136,6 +4136,11 @@ static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
sent += size;
count -= size;
+ /* ep2 need time to switch from function acl to function dfu,
+ * so we add 20ms delay here.
+ */
+ msleep(20);
+
while (count) {
size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
--
2.30.2
prev parent reply other threads:[~2021-07-06 11:34 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210706111827.2060499-1-sashal@kernel.org>
2021-07-06 11:18 ` [PATCH AUTOSEL 5.12 142/160] Bluetooth: btusb: Fixed too many in-token issue for Mediatek Chip Sasha Levin
2021-07-06 11:18 ` [PATCH AUTOSEL 5.12 143/160] Bluetooth: Fix the HCI to MGMT status conversion table Sasha Levin
2021-07-06 11:18 ` [PATCH AUTOSEL 5.12 144/160] Bluetooth: Fix alt settings for incoming SCO with transparent coding format Sasha Levin
2021-07-06 11:18 ` [PATCH AUTOSEL 5.12 145/160] Bluetooth: Shutdown controller after workqueues are flushed or cancelled Sasha Levin
2021-07-06 11:18 ` [PATCH AUTOSEL 5.12 146/160] Bluetooth: btusb: Add a new QCA_ROME device (0cf3:e500) Sasha Levin
2021-07-06 11:18 ` [PATCH AUTOSEL 5.12 147/160] Bluetooth: L2CAP: Fix invalid access if ECRED Reconfigure fails Sasha Levin
2021-07-06 11:18 ` [PATCH AUTOSEL 5.12 148/160] Bluetooth: L2CAP: Fix invalid access on ECRED Connection response Sasha Levin
2021-07-06 11:18 ` [PATCH AUTOSEL 5.12 149/160] Bluetooth: btusb: Add support USB ALT 3 for WBS Sasha Levin
2021-07-06 11:18 ` [PATCH AUTOSEL 5.12 150/160] Bluetooth: mgmt: Fix the command returns garbage parameter value Sasha Levin
2021-07-06 11:18 ` [PATCH AUTOSEL 5.12 151/160] Bluetooth: btusb: use default nvm if boardID is 0 for wcn6855 Sasha Levin
2021-07-06 11:18 ` Sasha Levin [this message]
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