From patchwork Wed Jan 15 08:55:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rocky Liao X-Patchwork-Id: 197458 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=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 5F51EC33CB1 for ; Wed, 15 Jan 2020 08:56:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2EC6E214AF for ; Wed, 15 Jan 2020 08:56:04 +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="dOlwh97b" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729139AbgAOI4D (ORCPT ); Wed, 15 Jan 2020 03:56:03 -0500 Received: from mail25.static.mailgun.info ([104.130.122.25]:27710 "EHLO mail25.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729077AbgAOI4D (ORCPT ); Wed, 15 Jan 2020 03:56:03 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1579078563; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=dw3OGlWe85GTH5+3pzosjlG6zFFR0KXM6IS6Rg1yNew=; b=dOlwh97bLWpvV51sm4Xd0EAQUxtGsqT6Wg//+hZ70+5qYacHNh6jri9lLX7OVvIQ8GjmlWl9 WM8saYFpEnG32U/THeez/SODHA/sl9JOFw06fPA722rZdKDuOU8dIGpK22xf9gTbH5VOEga+ 9lTOu9hMYMoyeDGlo+KPDcke9Tc= X-Mailgun-Sending-Ip: 104.130.122.25 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 mxa.mailgun.org with ESMTP id 5e1ed3a0.7f093b78ff48-smtp-out-n01; Wed, 15 Jan 2020 08:56:00 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 34BDFC447AA; Wed, 15 Jan 2020 08:55:59 +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 BFD40C447A6; Wed, 15 Jan 2020 08:55:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org BFD40C447A6 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: mka@chromium.org, linux-kernel@vger.kernel.org, linux-bluetooth@vger.kernel.org, linux-arm-msm@vger.kernel.org, bgodavar@codeaurora.org, hemantg@codeaurora.org, Rocky Liao Subject: [PATCH v4 1/3] Bluetooth: hci_qca: Add QCA Rome power off support to the qca_power_shutdown() Date: Wed, 15 Jan 2020 16:55:50 +0800 Message-Id: <20200115085552.11483-1-rjliao@codeaurora.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191225060317.5258-1-rjliao@codeaurora.org> References: <20191225060317.5258-1-rjliao@codeaurora.org> Sender: linux-bluetooth-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org Current qca_power_shutdown() only supports wcn399x, this patch adds Rome power off support to it. For Rome it just needs to pull down the bt_en GPIO to power off it. This patch also replaces all the power off operation in qca_close() with the unified qca_power_shutdown() call. Signed-off-by: Rocky Liao --- Changes in v2: None Changes in v3: None Changes in v4: -rebased the patch with latest code base -moved the change from qca_power_off() to qca_power_shutdown() -replaced all the power off operation in qca_close() with qca_power_shutdown() -updated commit message drivers/bluetooth/hci_qca.c | 28 ++++++++++++++++------------ 1 file changed, 16 insertions(+), 12 deletions(-) diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index 992622dc1263..ecb74965be10 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -663,7 +663,6 @@ static int qca_flush(struct hci_uart *hu) /* Close protocol */ static int qca_close(struct hci_uart *hu) { - struct qca_serdev *qcadev; struct qca_data *qca = hu->priv; BT_DBG("hu %p qca close", hu); @@ -679,14 +678,7 @@ static int qca_close(struct hci_uart *hu) destroy_workqueue(qca->workqueue); qca->hu = NULL; - if (hu->serdev) { - qcadev = serdev_device_get_drvdata(hu->serdev); - if (qca_is_wcn399x(qcadev->btsoc_type)) - qca_power_shutdown(hu); - else - gpiod_set_value_cansleep(qcadev->bt_en, 0); - - } + qca_power_shutdown(hu); kfree_skb(qca->rx_skb); @@ -1685,6 +1677,7 @@ static void qca_power_shutdown(struct hci_uart *hu) struct qca_serdev *qcadev; struct qca_data *qca = hu->priv; unsigned long flags; + enum qca_btsoc_type soc_type = qca_soc_type(hu); qcadev = serdev_device_get_drvdata(hu->serdev); @@ -1697,11 +1690,22 @@ static void qca_power_shutdown(struct hci_uart *hu) qca_flush(hu); spin_unlock_irqrestore(&qca->hci_ibs_lock, flags); - host_set_baudrate(hu, 2400); - qca_send_power_pulse(hu, false); - qca_regulator_disable(qcadev); hu->hdev->hw_error = NULL; hu->hdev->cmd_timeout = NULL; + + /* Non-serdev device usually is powered by external power + * and don't need additional action in driver for power down + */ + if (!hu->serdev) + return; + + if (qca_is_wcn399x(soc_type)) { + host_set_baudrate(hu, 2400); + qca_send_power_pulse(hu, false); + qca_regulator_disable(qcadev); + } else { + gpiod_set_value_cansleep(qcadev->bt_en, 0); + } } static int qca_power_off(struct hci_dev *hdev)