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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 6582DC43603 for ; Thu, 19 Dec 2019 04:03:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3711C21582 for ; Thu, 19 Dec 2019 04:03:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="CDBTqv0o" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726887AbfLSEDu (ORCPT ); Wed, 18 Dec 2019 23:03:50 -0500 Received: from mail26.static.mailgun.info ([104.130.122.26]:50338 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726777AbfLSEDt (ORCPT ); Wed, 18 Dec 2019 23:03:49 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1576728228; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=0fQzSuMhnuj2USzauI4HqHlR+Kp/9qEK+7rRqDzQ/og=; b=CDBTqv0okqKb59Dl9K3EeajAqTlkNTV2zjCc5e18X9WIgIqaTTKDf0JVcWoikwxJfT1bsmFs V9JACeb0CqJt49K/+zEMCkgZm9DnUd/36eUEpf/QPwAvXR08IjZlc257TeTwCqoRB5d/+AAo xEmQGCgH7hthaWWyIO1m9HXISeM= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyI0MWYwYSIsICJsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5dfaf69d.7f437d6ac928-smtp-out-n01; Thu, 19 Dec 2019 04:03:41 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 5F42DC3275A; Thu, 19 Dec 2019 04:03:40 +0000 (UTC) Received: from rocky-Inspiron-7590.qca.qualcomm.com (unknown [180.166.53.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: rjliao) by smtp.codeaurora.org (Postfix) with ESMTPSA id 74326C2BB50; Thu, 19 Dec 2019 04:03:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 74326C2BB50 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=none smtp.mailfrom=rjliao@codeaurora.org From: Rocky Liao To: marcel@holtmann.org, johan.hedberg@gmail.com Cc: linux-kernel@vger.kernel.org, linux-bluetooth@vger.kernel.org, Rocky Liao Subject: [PATCH v1] Bluetooth: hci_qca: Add poweroff support during hci down for QCA Rome Date: Thu, 19 Dec 2019 12:03:34 +0800 Message-Id: <20191219040334.15355-1-rjliao@codeaurora.org> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch enables power off support for hci down and power on support for hci up. As QCA Rome power sources are ignited by bt_en GPIO, we will pull it down during hci down, i.e. an complete power off of QCA Rome. So while hci up, will pull up the bt_en GPIO again to power on the chip, requests BT chip version and download the firmware. Signed-off-by: Rocky Liao --- drivers/bluetooth/hci_qca.c | 34 ++++++++++++++++++++++++++++++---- 1 file changed, 30 insertions(+), 4 deletions(-) diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index b602ed01505b..1cb706acdef6 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -1257,6 +1257,7 @@ static int qca_setup(struct hci_uart *hu) { struct hci_dev *hdev = hu->hdev; struct qca_data *qca = hu->priv; + struct qca_serdev *qcadev; unsigned int speed, qca_baudrate = QCA_BAUDRATE_115200; enum qca_btsoc_type soc_type = qca_soc_type(hu); const char *firmware_name = qca_get_firmware_name(hu); @@ -1293,6 +1294,17 @@ static int qca_setup(struct hci_uart *hu) return ret; } else { bt_dev_info(hdev, "ROME setup"); + if (hu->serdev) { + /* Enable NON_PERSISTENT_SETUP QUIRK to ensure to + * execute setup for every hci up. + */ + set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks); + qcadev = serdev_device_get_drvdata(hu->serdev); + hu->hdev->shutdown = qca_power_off; + gpiod_set_value_cansleep(qcadev->bt_en, 1); + /* Controller needs time to bootup. */ + msleep(150); + } qca_set_speed(hu, QCA_INIT_SPEED); } @@ -1413,13 +1425,27 @@ static void qca_power_shutdown(struct hci_uart *hu) static int qca_power_off(struct hci_dev *hdev) { struct hci_uart *hu = hci_get_drvdata(hdev); + struct qca_serdev *qcadev; + enum qca_btsoc_type soc_type = qca_soc_type(hu); - /* Perform pre shutdown command */ - qca_send_pre_shutdown_cmd(hdev); + if (qca_is_wcn399x(soc_type)) { + /* Perform pre shutdown command */ + qca_send_pre_shutdown_cmd(hdev); - usleep_range(8000, 10000); + usleep_range(8000, 10000); + + qca_power_shutdown(hu); + } else { + if (hu->serdev) { + + qcadev = serdev_device_get_drvdata(hu->serdev); + + gpiod_set_value_cansleep(qcadev->bt_en, 0); + + usleep_range(8000, 10000); + } + } - qca_power_shutdown(hu); return 0; } -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project