From patchwork Tue Aug 17 00:55:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 498199 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, 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 8E17CC4320E for ; Tue, 17 Aug 2021 00:56:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7607D60EE0 for ; Tue, 17 Aug 2021 00:56:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237070AbhHQA4r (ORCPT ); Mon, 16 Aug 2021 20:56:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40072 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236095AbhHQAzy (ORCPT ); Mon, 16 Aug 2021 20:55:54 -0400 Received: from mail-lj1-x233.google.com (mail-lj1-x233.google.com [IPv6:2a00:1450:4864:20::233]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2E676C0613CF for ; Mon, 16 Aug 2021 17:55:22 -0700 (PDT) Received: by mail-lj1-x233.google.com with SMTP id n7so30226032ljq.0 for ; Mon, 16 Aug 2021 17:55:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=osWd7o/rbNiDPvWTS+l0GmKDa+5+wAZOkcYrzBBA3b8=; b=lT5ChW9T1u195uYv4Esr58dfWbudSm+C+kKwpf9Lruop4z4jZ6yU7Ttg9iNOslMEl1 oBIrCmYc74WXZoj21FXZG3tPQJyveSrh3Y0P5uLh9Yzj81tKblayMrjJH11cc3CMi8iY 6JCW94lFgA93lhEAZuZJbU5TlePL3EYs9PoOfiJv2rXd1rb9Dqbj4ZhlTpm1uAkMnDCZ 2ria0E26+y7SN+qI5WoqxXgtjfINcQftMJIonKwmrtKYVykoASrT298MBPclrLJuia9V moSbwQz/KefZctVj3YxvN0y4HmHsoKXCExcUs1nfkKesvsCiD+WzeSBD9/2LPA64+n7u hLZg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=osWd7o/rbNiDPvWTS+l0GmKDa+5+wAZOkcYrzBBA3b8=; b=fQ0HInia8aYqWFZfFF93c0qBkZUuhd7OKH5dvlqT2hf5wx2h1Md5m5txg0qu9dR9GH mNdAmtjjZeqOLrQ+xLu1A6p/V/f3pERVrJWMrirbTZvW049ki0hR8XDqVSf+i9q1Ia6T VFag7hem9dfShClsRBeF5wDUyGjey6F8re2B71Aoysmw6vFjGCJpZ1rc3QoywCqioDS6 uTAWczqP82MjBbn8BXquvJB5HJoLZvdofjlzi/p46EF3ewuM5xOpx/J4dwCuEqKfkt4+ DdrmK3dA/5FNT8JpXt2ZbWlyhmkmMJo8tYC72Ko33rEsaHqEEkbrV+reWdPG7qxLF9kS tM0Q== X-Gm-Message-State: AOAM533e3BpaDjZmiKniIk48A9XmXscOjPQGlAIkt+zNQ0az+zRnYYbR vr2RHcFpBmnIiSOsrNWTbNRgrQ== X-Google-Smtp-Source: ABdhPJz0uYwW8+HUPLaLEIGd3/MVOQML6ZV+enuZ/lIlsO1SnklxizPta3pJuzgtBrngpxzwl2Cuyg== X-Received: by 2002:a2e:9a50:: with SMTP id k16mr793082ljj.308.1629161720605; Mon, 16 Aug 2021 17:55:20 -0700 (PDT) Received: from eriador.lan ([37.153.55.125]) by smtp.gmail.com with ESMTPSA id z6sm40719lfb.251.2021.08.16.17.55.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Aug 2021 17:55:20 -0700 (PDT) From: Dmitry Baryshkov To: Andy Gross , Bjorn Andersson , Ulf Hansson , Marcel Holtmann , Johan Hedberg , Luiz Augusto von Dentz , Kalle Valo , "David S. Miller" , Jakub Kicinski , Stanimir Varbanov Cc: linux-arm-msm@vger.kernel.org, linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-bluetooth@vger.kernel.org, ath10k@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org Subject: [RFC PATCH 09/15] Bluetooth: hci_qca: add support for pwrseq Date: Tue, 17 Aug 2021 03:55:01 +0300 Message-Id: <20210817005507.1507580-10-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210817005507.1507580-1-dmitry.baryshkov@linaro.org> References: <20210817005507.1507580-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org Support using pwrseq for powering up and down the QCA BT chips. Signed-off-by: Dmitry Baryshkov --- drivers/bluetooth/hci_qca.c | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index 2d23e8a3ca14..a908a952c0ef 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include @@ -211,6 +212,7 @@ struct qca_serdev { struct gpio_desc *sw_ctrl; struct clk *susclk; enum qca_btsoc_type btsoc_type; + struct pwrseq *pwrseq; struct regulator_bulk_data *vreg_bulk; int num_vregs; bool vregs_on; @@ -1602,7 +1604,10 @@ static int qca_power_on(struct hci_dev *hdev) */ qcadev = serdev_device_get_drvdata(hu->serdev); serdev_device_close(hu->serdev); - ret = qca_regulator_enable(qcadev); + if (qcadev->pwrseq) + ret = pwrseq_full_power_on(qcadev->pwrseq); + else + ret = qca_regulator_enable(qcadev); if (ret) return ret; @@ -1863,7 +1868,10 @@ static void qca_power_shutdown(struct hci_uart *hu) host_set_baudrate(hu, 2400); qca_send_power_pulse(hu, false); } - qca_regulator_disable(qcadev); + if (qcadev->pwrseq) + pwrseq_power_off(qcadev->pwrseq); + else + qca_regulator_disable(qcadev); set_bit(QCA_BT_OFF, &qca->flags); } @@ -2015,7 +2023,15 @@ static int qca_serdev_probe(struct serdev_device *serdev) else qcadev->btsoc_type = QCA_ROME; - if (data && data->num_vregs) { + qcadev->pwrseq = devm_pwrseq_get_optional(&serdev->dev, "bt"); + if (IS_ERR(qcadev->pwrseq)) { + err = PTR_ERR(qcadev->pwrseq); + BT_ERR("Failed to init regulators:%d", err); + return err; + + } + + if (!qcadev->pwrseq && data && data->num_vregs) { err = qca_init_regulators(qcadev, &serdev->dev, data->vregs, data->num_vregs); if (err) {