From patchwork Wed Mar 4 13:16:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rocky Liao X-Patchwork-Id: 11420109 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2FC57138D for ; Wed, 4 Mar 2020 13:16:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0A7A32166E for ; Wed, 4 Mar 2020 13:16:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="X6aNIugG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388106AbgCDNQ4 (ORCPT ); Wed, 4 Mar 2020 08:16:56 -0500 Received: from mail26.static.mailgun.info ([104.130.122.26]:19367 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729175AbgCDNQ4 (ORCPT ); Wed, 4 Mar 2020 08:16:56 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1583327815; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=K4q6i2AGe0LtekAkSNRrYuh3u8TmdkdQFpM4sYuSA1Y=; b=X6aNIugGTc2F3LsH05rYd3uAVcqTMEkZNoXxlzWi5xguYbm4wnRY71uwKuZZzBBtmVg8G4qV djQh1wNK/o2dNToLC/G88SFEoCkIsO8EggZEqN7iVXFJspRi4w3sKWq03jYyuctmkfRxg1IA tYMSxQ9jxpPacMh+S1sCrC5dLdU= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== 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 5e5faa47.7f935e333c38-smtp-out-n03; Wed, 04 Mar 2020 13:16:55 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 04780C4479F; Wed, 4 Mar 2020 13:16:54 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.0 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 A1294C43383; Wed, 4 Mar 2020 13:16:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org A1294C43383 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, linux-arm-msm@vger.kernel.org, bgodavar@codeaurora.org, c-hbandi@codeaurora.org, hemantg@codeaurora.org, mka@chromium.org, Rocky Liao Subject: [PATCH v1] Bluetooth: hci_qca: Replace devm_gpiod_get() with devm_gpiod_get_optional() Date: Wed, 4 Mar 2020 21:16:45 +0800 Message-Id: <20200304131645.22057-1-rjliao@codeaurora.org> X-Mailer: git-send-email 2.17.1 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org This patch replaces devm_gpiod_get() with devm_gpiod_get_optional() to get bt_en and replaces devm_clk_get() with devm_clk_get_optional() to get susclk. It also uses NULL check to determine whether the resource is available or not. Fixes: 8a208b24d770 ("Bluetooth: hci_qca: Make bt_en and susclk not mandatory for QCA Rome") Signed-off-by: Rocky Liao --- drivers/bluetooth/hci_qca.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index 325baa046c3a..439392b1c043 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -1562,7 +1562,7 @@ static int qca_power_on(struct hci_dev *hdev) ret = qca_wcn3990_init(hu); } else { qcadev = serdev_device_get_drvdata(hu->serdev); - if (!IS_ERR(qcadev->bt_en)) { + if (qcadev->bt_en) { gpiod_set_value_cansleep(qcadev->bt_en, 1); /* Controller needs time to bootup. */ msleep(150); @@ -1752,7 +1752,7 @@ static void qca_power_shutdown(struct hci_uart *hu) host_set_baudrate(hu, 2400); qca_send_power_pulse(hu, false); qca_regulator_disable(qcadev); - } else if (!IS_ERR(qcadev->bt_en)) { + } else if (qcadev->bt_en) { gpiod_set_value_cansleep(qcadev->bt_en, 0); } } @@ -1901,15 +1901,15 @@ static int qca_serdev_probe(struct serdev_device *serdev) } } else { qcadev->btsoc_type = QCA_ROME; - qcadev->bt_en = devm_gpiod_get(&serdev->dev, "enable", + qcadev->bt_en = devm_gpiod_get_optional(&serdev->dev, "enable", GPIOD_OUT_LOW); - if (IS_ERR(qcadev->bt_en)) { + if (!qcadev->bt_en) { dev_warn(&serdev->dev, "failed to acquire enable gpio\n"); power_ctrl_enabled = false; } - qcadev->susclk = devm_clk_get(&serdev->dev, NULL); - if (IS_ERR(qcadev->susclk)) { + qcadev->susclk = devm_clk_get_optional(&serdev->dev, NULL); + if (!qcadev->susclk) { dev_warn(&serdev->dev, "failed to acquire clk\n"); } else { err = clk_set_rate(qcadev->susclk, SUSCLK_RATE_32KHZ); @@ -1924,7 +1924,7 @@ static int qca_serdev_probe(struct serdev_device *serdev) err = hci_uart_register_device(&qcadev->serdev_hu, &qca_proto); if (err) { BT_ERR("Rome serdev registration failed"); - if (!IS_ERR(qcadev->susclk)) + if (qcadev->susclk) clk_disable_unprepare(qcadev->susclk); return err; } @@ -1945,7 +1945,7 @@ static void qca_serdev_remove(struct serdev_device *serdev) if (qca_is_wcn399x(qcadev->btsoc_type)) qca_power_shutdown(&qcadev->serdev_hu); - else if (!IS_ERR(qcadev->susclk)) + else if (qcadev->susclk) clk_disable_unprepare(qcadev->susclk); hci_uart_unregister_device(&qcadev->serdev_hu);