From patchwork Wed Feb 20 11:25:16 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Balakrishna Godavarthi X-Patchwork-Id: 10821893 X-Patchwork-Delegate: agross@codeaurora.org Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8EC5B1575 for ; Wed, 20 Feb 2019 11:25:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 747FC2C070 for ; Wed, 20 Feb 2019 11:25:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 68CA72D507; Wed, 20 Feb 2019 11:25:35 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1266A2C070 for ; Wed, 20 Feb 2019 11:25:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726503AbfBTLZe (ORCPT ); Wed, 20 Feb 2019 06:25:34 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:50554 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726197AbfBTLZe (ORCPT ); Wed, 20 Feb 2019 06:25:34 -0500 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id C7F9D601EA; Wed, 20 Feb 2019 11:25:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1550661932; bh=h0Vo6ovhZYdyYgbdfk38gIfa4lo+R5R/ObTapMEo7Mw=; h=From:To:Cc:Subject:Date:From; b=DvVLRNpdcHMvplI4fV3uBd1AJgTwZ+9/dJ6AOqJOOPUi6QUbCNmvzat/Os0s6c9wG oEGt5mIleCAbROHvJ5eFXWDmf3UtWOn2JJ7tv4yj87wBjqqPDQh5Sc0LblytwyGhFd xn18PpKKUH8s0bTy9Yo7iGRM6OdvtBeqwuQZiAxU= Received: from bgodavar-linux.qualcomm.com (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: bgodavar@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 5EFFC60585; Wed, 20 Feb 2019 11:25:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1550661931; bh=h0Vo6ovhZYdyYgbdfk38gIfa4lo+R5R/ObTapMEo7Mw=; h=From:To:Cc:Subject:Date:From; b=RBJ0ynFo1YbjnZ/fwgcnfoBvMW+cfGPAy6Bwzyo3EfHeXxeS0xOb/Y4ZMZY+5WdkD iesk2OammJpxJgbl21ncs66hfAZOqaNj9vU2wViaZRAII0KRbiWccT54xjSj/n7m3v POYhXvMvdwl8r7iOcKT1sY+zMGU+AP8z5yKl1YlA= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 5EFFC60585 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=bgodavar@codeaurora.org From: Balakrishna Godavarthi To: marcel@holtmann.org, johan.hedberg@gmail.com Cc: mka@chromium.org, linux-kernel@vger.kernel.org, linux-bluetooth@vger.kernel.org, hemantg@codeaurora.org, linux-arm-msm@vger.kernel.org, Balakrishna Godavarthi Subject: [PATCH v1] Bluetooth: hci_qca: Update baudrate change wait time for wcn3990 Date: Wed, 20 Feb 2019 16:55:16 +0530 Message-Id: <20190220112516.19179-1-bgodavar@codeaurora.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch will update the baudrate change request wait time from 300 ms to 100 ms. When host sends the change baudrate request to the controller, controller sets its clock and wait until the clocks settle down. Here the Wait time is required for both host and controller to be on sync. Signed-off-by: Balakrishna Godavarthi --- drivers/bluetooth/hci_qca.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index 5e03504c4e0c..22f3c983f868 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -59,7 +59,8 @@ #define IBS_WAKE_RETRANS_TIMEOUT_MS 100 #define IBS_TX_IDLE_TIMEOUT_MS 2000 -#define BAUDRATE_SETTLE_TIMEOUT_MS 300 +#define ROME_BD_SETTLE_TIMEOUT_MS 300 +#define WCN3990_BD_SETTLE_TIMEOUT_MS 100 #define POWER_PULSE_TRANS_TIMEOUT_MS 100 /* susclk rate */ @@ -965,8 +966,11 @@ static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate) struct hci_uart *hu = hci_get_drvdata(hdev); struct qca_data *qca = hu->priv; struct sk_buff *skb; + struct qca_serdev *qcadev; + unsigned int bd_settling_timeout; u8 cmd[] = { 0x01, 0x48, 0xFC, 0x01, 0x00 }; + qcadev = serdev_device_get_drvdata(hu->serdev); if (baudrate > QCA_BAUDRATE_3200000) return -EINVAL; @@ -989,8 +993,12 @@ static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate) * controller will come back after they receive this HCI command * then host can communicate with new baudrate to controller */ + bd_settling_timeout = qcadev->btsoc_type == QCA_WCN3990 ? + WCN3990_BD_SETTLE_TIMEOUT_MS : + ROME_BD_SETTLE_TIMEOUT_MS; + set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(msecs_to_jiffies(BAUDRATE_SETTLE_TIMEOUT_MS)); + schedule_timeout(msecs_to_jiffies(bd_settling_timeout)); set_current_state(TASK_RUNNING); return 0;