From patchwork Mon Aug 28 05:16:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hui Liu via B4 Relay X-Patchwork-Id: 718172 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A3E7AC83F16 for ; Mon, 28 Aug 2023 05:25:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229548AbjH1FZE (ORCPT ); Mon, 28 Aug 2023 01:25:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54292 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229772AbjH1FYy (ORCPT ); Mon, 28 Aug 2023 01:24:54 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9B7E4129; Sun, 27 Aug 2023 22:24:50 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 3033460AAF; Mon, 28 Aug 2023 05:24:50 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 8A537C433C7; Mon, 28 Aug 2023 05:24:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1693200289; bh=0Xk4uK/2TRf9VsLF/92kL0q0rtsuDOsk2AN3vjKX7jA=; h=From:Date:Subject:To:Cc:Reply-To:From; b=abUTbwgSeH3Oe6ZIl78vZ9Knd56LOALemfma5QsXC9wDcEx0KVsmi7CkgQzh4rcIx qoXEKu03RIld5TNF1owSlkqIF+piz2cFMG4VxUIxf4E+ImZ0ngKOxr+0Lp9kpysyp5 6izzAXCJ66p6vNJ1tsehheY5PaTQKeCTBGOg5RmalSZK80hZclPMIf+g70luNJJ0zN kLmZlSKQlafURgBNCW2MkTEN7YYOTXqnRBfmbH81VpguKJ03LP4+mDfNd0enhWVxkf wYXCWdzWY1WwTv5pmiasYTkI6Rr3MDQ9AMDxr9SDmHM7CoBc+MAaIGgt6+u8JCjsWb uxqvLWQMiT2KQ== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6BC1BC83F13; Mon, 28 Aug 2023 05:24:49 +0000 (UTC) From: Hui Liu via B4 Relay Date: Mon, 28 Aug 2023 13:16:30 +0800 Subject: [PATCH v3] usb: typec: qcom: check regulator enable status before disabling it MIME-Version: 1.0 Message-Id: <20230828-qcom-tcpc-v3-1-e95b7afa34d9@quicinc.com> X-B4-Tracking: v=1; b=H4sIAK4t7GQC/1WMyw7CIBBFf6VhLQYGaFpX/odxQQZqZ2EfUImm4 d+lTUzq8tzcc1YWfSAf2aVaWfCJIo1DAXWqGPZ2eHhOrjADAUo0AHzG8ckXnJA7LVujLdams6z 8p+A7eu+t271wT3EZw2dPJ7mtv4o6VJLkkne2kVa0aIWpr/OLkAY8lwvbOgmOrj66UFzlXINKg za1/ndzzl/z4Xkg4AAAAA== To: Bryan O'Donoghue , Guenter Roeck , Andy Gross , Bjorn Andersson , Konrad Dybcio , Heikki Krogerus , Greg Kroah-Hartman Cc: linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, quic_fenglinw@quicinc.com, subbaram@quicinc.com, Hui Liu X-Mailer: b4 0.13-dev-83828 X-Developer-Signature: v=1; a=ed25519-sha256; t=1693200287; l=2740; i=quic_huliu@quicinc.com; s=20230823; h=from:subject:message-id; bh=PhtbUNi497LxsIT+PR23WnfyXiZjybQwxlZzIfUUR5o=; b=bCWEQzBXl080+WyLCKcjD4QwE7Jc4U3EfZtl4SMmaP4uobY/tBzbcihL2B/CSc8GrXaGvCs7L oyP1VIASZIlCv9FXNhvkMmx5I99EYk1it1tDwbhIU6H6eFNX/h7KMBC X-Developer-Key: i=quic_huliu@quicinc.com; a=ed25519; pk=1z+A50UnTuKe/FdQv2c0W3ajDsJOYddwIHo2iivhTTA= X-Endpoint-Received: by B4 Relay for quic_huliu@quicinc.com/20230823 with auth_id=80 X-Original-From: Hui Liu Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Hui Liu Check regulator enable status before disabling it to avoid unbalanced regulator disable warnings. Reviewed-by: Guenter Roeck Fixes: a4422ff22142 ("usb: typec: qcom: Add Qualcomm PMIC Type-C driver") Reviewed-by: Bryan O'Donoghue Acked-by: Bryan O'Donoghue Signed-off-by: Hui Liu Tested-by: Bryan O'Donoghue # rb5 --- Changes in v3: - Take Bryan's proposal to remove enable/disable operation in pdphy enable and pdphy disable function, then enable regulator in pdphy start function and disable it in pdphy stop function. - Link to v2: https://lore.kernel.org/r/20230824-qcom-tcpc-v2-1-3dd8c3424564@quicinc.com Changes in v2: - Add Fixes tag - Link to v1: https://lore.kernel.org/r/20230823-qcom-tcpc-v1-1-fa81a09ca056@quicinc.com --- drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) --- base-commit: bbb9e06d2c6435af9c62074ad7048910eeb2e7bc change-id: 20230822-qcom-tcpc-d41954ac65fa Best regards, diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c index bb0b8479d80f..52c81378e36e 100644 --- a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c +++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c @@ -381,10 +381,6 @@ static int qcom_pmic_typec_pdphy_enable(struct pmic_typec_pdphy *pmic_typec_pdph struct device *dev = pmic_typec_pdphy->dev; int ret; - ret = regulator_enable(pmic_typec_pdphy->vdd_pdphy); - if (ret) - return ret; - /* PD 2.0, DR=TYPEC_DEVICE, PR=TYPEC_SINK */ ret = regmap_update_bits(pmic_typec_pdphy->regmap, pmic_typec_pdphy->base + USB_PDPHY_MSG_CONFIG_REG, @@ -422,8 +418,6 @@ static int qcom_pmic_typec_pdphy_disable(struct pmic_typec_pdphy *pmic_typec_pdp ret = regmap_write(pmic_typec_pdphy->regmap, pmic_typec_pdphy->base + USB_PDPHY_EN_CONTROL_REG, 0); - regulator_disable(pmic_typec_pdphy->vdd_pdphy); - return ret; } @@ -447,6 +441,10 @@ int qcom_pmic_typec_pdphy_start(struct pmic_typec_pdphy *pmic_typec_pdphy, int i; int ret; + ret = regulator_enable(pmic_typec_pdphy->vdd_pdphy); + if (ret) + return ret; + pmic_typec_pdphy->tcpm_port = tcpm_port; ret = pmic_typec_pdphy_reset(pmic_typec_pdphy); @@ -467,6 +465,8 @@ void qcom_pmic_typec_pdphy_stop(struct pmic_typec_pdphy *pmic_typec_pdphy) disable_irq(pmic_typec_pdphy->irq_data[i].irq); qcom_pmic_typec_pdphy_reset_on(pmic_typec_pdphy); + + regulator_disable(pmic_typec_pdphy->vdd_pdphy); } struct pmic_typec_pdphy *qcom_pmic_typec_pdphy_alloc(struct device *dev)