From mboxrd@z Thu Jan 1 00:00:00 1970 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=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 212A1C433E1 for ; Mon, 17 Aug 2020 19:40:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EEB2920716 for ; Mon, 17 Aug 2020 19:40:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597693209; bh=4EeZo2BVJkUQH+XtB+Bb6i6GYCa2O/0wHaEUqGFgXQA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=fXLsR+HUtf7mX8E0UzIN2MxtPG/Yz4O6GJog772tWLz35q1ltwsjKzBu8vd8kEsxW FJahQA1YUkmoRoyLC3aOXQhp78A8ttOAEY+QnKHpQ7tifq7+0AsY8NpSJqFts1P3Qg S+qi3stcmxWQcrKIW/kSwZpCd50EgiEhM048D5n8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732537AbgHQTkH (ORCPT ); Mon, 17 Aug 2020 15:40:07 -0400 Received: from mail.kernel.org ([198.145.29.99]:33432 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729488AbgHQPZ7 (ORCPT ); Mon, 17 Aug 2020 11:25:59 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1219E205CB; Mon, 17 Aug 2020 15:25:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597677958; bh=4EeZo2BVJkUQH+XtB+Bb6i6GYCa2O/0wHaEUqGFgXQA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HjsuZZ1TXN4lsEhK8tRxn3cKkESPjegsKs1wBgrr5aMJjjhq4v1/z3c+7sz9Xm+B/ eGR2UClTH2fXhhYU9WNQiVeto3j1IHhS8MHd+V4HMeV4mi5gbgjmoWNobhy91iGrWc Psn4qRdkxCJYHuP1PXHdBslEQS/+Mhx9NBWfTW74= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Mark Chen , Sean Wang , Marcel Holtmann , Sasha Levin Subject: [PATCH 5.8 170/464] Bluetooth: btusb: fix up firmware download sequence Date: Mon, 17 Aug 2020 17:12:03 +0200 Message-Id: <20200817143841.964263701@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200817143833.737102804@linuxfoundation.org> References: <20200817143833.737102804@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sean Wang [ Upstream commit f645125711c80f9651e4a57403d799070c6ad13b ] Data RAM on the device have to be powered on before starting to download the firmware. Fixes: a1c49c434e15 ("Bluetooth: btusb: Add protocol support for MediaTek MT7668U USB devices") Co-developed-by: Mark Chen Signed-off-by: Mark Chen Signed-off-by: Sean Wang Signed-off-by: Marcel Holtmann Signed-off-by: Sasha Levin --- drivers/bluetooth/btusb.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 5f022e9cf667e..61ffe185e0e49 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -2925,7 +2925,7 @@ static int btusb_mtk_setup_firmware(struct hci_dev *hdev, const char *fwname) const u8 *fw_ptr; size_t fw_size; int err, dlen; - u8 flag; + u8 flag, param; err = request_firmware(&fw, fwname, &hdev->dev); if (err < 0) { @@ -2933,6 +2933,20 @@ static int btusb_mtk_setup_firmware(struct hci_dev *hdev, const char *fwname) return err; } + /* Power on data RAM the firmware relies on. */ + param = 1; + wmt_params.op = BTMTK_WMT_FUNC_CTRL; + wmt_params.flag = 3; + wmt_params.dlen = sizeof(param); + wmt_params.data = ¶m; + wmt_params.status = NULL; + + err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); + if (err < 0) { + bt_dev_err(hdev, "Failed to power on data RAM (%d)", err); + return err; + } + fw_ptr = fw->data; fw_size = fw->size; -- 2.25.1