From patchwork Fri Dec 18 10:12:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zijun Hu X-Patchwork-Id: 11981615 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D484FC2BBCF for ; Fri, 18 Dec 2020 10:13:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8DB2A23A51 for ; Fri, 18 Dec 2020 10:13:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389055AbgLRKNN (ORCPT ); Fri, 18 Dec 2020 05:13:13 -0500 Received: from so254-31.mailgun.net ([198.61.254.31]:18371 "EHLO so254-31.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389031AbgLRKNN (ORCPT ); Fri, 18 Dec 2020 05:13:13 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1608286373; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=0qZgHrTtdOiDdGXSAh2oPnUFJwVxOdegk+F5rocDvGQ=; b=QGhznwy8N1CHsBb1ZEG9b0I2t+m09/Jpy+VIFxSQEpFuDy1RejalrWeHjbiW0bDAkSD1AGjU NFKGHgv6WNL8ztNsKcK93mUJhEOV9qG85LPmtX4ZXMzn8RcjeiuY196pDAy2EajDM6Y+GEXy QIpynYH8YlFcFcbnPspXC79k9WY= X-Mailgun-Sending-Ip: 198.61.254.31 X-Mailgun-Sid: WyI2MTA3ZSIsICJsaW51eC1ibHVldG9vdGhAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n05.prod.us-east-1.postgun.com with SMTP id 5fdc80840564dfefcd862883 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Fri, 18 Dec 2020 10:12:20 GMT Sender: zijuhu=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 6AF32C43462; Fri, 18 Dec 2020 10:12:19 +0000 (UTC) Received: from zijuhu-gv.qualcomm.com (unknown [180.166.53.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: zijuhu) by smtp.codeaurora.org (Postfix) with ESMTPSA id 092B6C433ED; Fri, 18 Dec 2020 10:12:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 092B6C433ED Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=zijuhu@codeaurora.org From: Zijun Hu To: marcel@holtmann.org, johan.hedberg@gmail.com, luiz.dentz@gmail.com Cc: linux-kernel@vger.kernel.org, linux-bluetooth@vger.kernel.org, linux-arm-msm@vger.kernel.org, bgodavar@codeaurora.org, c-hbandi@codeaurora.org, hemantg@codeaurora.org, mka@chromium.org, rjliao@codeaurora.org, zijuhu@codeaurora.org, tjiang@codeaurora.org Subject: [PATCH v1] Bluetooth: btusb: add shutdown function for wcn6855 Date: Fri, 18 Dec 2020 18:12:11 +0800 Message-Id: <1608286331-15760-1-git-send-email-zijuhu@codeaurora.org> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org From: Tim Jiang we should send hci reset command before bt turn off, which can reset bt firmware status. Signed-off-by: Tim Jiang --- drivers/bluetooth/btusb.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 03b83aa91277..139132463a87 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -4264,6 +4264,20 @@ static bool btusb_prevent_wake(struct hci_dev *hdev) return !device_may_wakeup(&data->udev->dev); } +static int btusb_shutdown_qca(struct hci_dev *hdev) +{ + struct sk_buff *skb; + + skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + bt_dev_err(hdev, "HCI reset during shutdown failed"); + return PTR_ERR(skb); + } + kfree_skb(skb); + + return 0; +} + static int btusb_probe(struct usb_interface *intf, const struct usb_device_id *id) { @@ -4523,6 +4537,7 @@ static int btusb_probe(struct usb_interface *intf, if (id->driver_info & BTUSB_QCA_WCN6855) { data->setup_on_usb = btusb_setup_qca; + hdev->shutdown = btusb_shutdown_qca; hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; hdev->cmd_timeout = btusb_qca_cmd_timeout; set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);