From patchwork Mon May 29 18:56:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adrien Thierry X-Patchwork-Id: 13258878 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 D0A5EC7EE2C for ; Mon, 29 May 2023 18:59:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229621AbjE2S7O (ORCPT ); Mon, 29 May 2023 14:59:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47412 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229491AbjE2S7N (ORCPT ); Mon, 29 May 2023 14:59:13 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1FF7DC9 for ; Mon, 29 May 2023 11:58:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1685386718; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=BQbwFXAVPJpUwaJsW0fx1tAIQkk2NK/3kU2J8xKWCmU=; b=a4cS0OUnW6g2+CQyfi6hYiO6XOO1ZmeYOx2++yfZGRHbqTSQZRBDSNX2EqmGQBuJ3/WVzq Z69RtL9p4W7HQ++jwgr+kxL7bnJfrCU0Q1MfqIGZSbrqwkI3EgWzgialE+toYlklfgY71p iGcMMo/lHhLvSisofXU+6fTP4K9nSvM= Received: from mail-qk1-f199.google.com (mail-qk1-f199.google.com [209.85.222.199]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-641-hLuqiH12PM6E6EQ_3QkCvg-1; Mon, 29 May 2023 14:58:37 -0400 X-MC-Unique: hLuqiH12PM6E6EQ_3QkCvg-1 Received: by mail-qk1-f199.google.com with SMTP id af79cd13be357-75aff18ebcbso235573785a.0 for ; Mon, 29 May 2023 11:58:37 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685386717; x=1687978717; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=BQbwFXAVPJpUwaJsW0fx1tAIQkk2NK/3kU2J8xKWCmU=; b=YsUde+kbbR+iVHE0ar/dzg17T6/qCob+jeWXYmKZm4QFRiKm+gi6w0CZKlpO9+zxU4 2gs82ANzAQ8prE76UcT8wbsEEwVgXCdWJQXR/gm2qnqI0kiPcNmpNHkq/7mJsPWlKxKW 7ka9m7YwhDUtWYN2y8sHwWdAsgQDzSjJUbksbarJr9YERlI8U5gIGu7Oa+lWshJnj0dU JRokDQOueH74bKlQWzCMFHOPAmMLxZLiyXVUfUa0UHpEXu5DGNpf6nsmKBssTSsKQ5Nv 4udXIqfimDA+Xocdjw7SXHJ3cNouwCqYKs29jbzutz+DNUexrKbfdtuE+lOStFclKdXn oFIg== X-Gm-Message-State: AC+VfDxh07t08BhwCMb5VocpYY7g2ySdCV0F78xzlIjwnkvCirbqPuqt q38NEYZ7dhIFmtkD/M8F0yfCApSOFD/1MrKAh0U70JHiw07gk7+EzMDiinl2d5tlgRHT8TZp8P1 0TXUTVFeYqaIdP4Jt/k1XsLxrmQ== X-Received: by 2002:a37:4656:0:b0:75b:23a1:d84e with SMTP id t83-20020a374656000000b0075b23a1d84emr6839520qka.16.1685386716994; Mon, 29 May 2023 11:58:36 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ6LvGZqNHOJIqeUUOf/C0cdN/hvdBuc96d2Im2jnpshQGMr/XcJAZ4chW0KTNXbYFMAzvFvBw== X-Received: by 2002:a37:4656:0:b0:75b:23a1:d84e with SMTP id t83-20020a374656000000b0075b23a1d84emr6839512qka.16.1685386716757; Mon, 29 May 2023 11:58:36 -0700 (PDT) Received: from fedora.redhat.com ([107.171.218.122]) by smtp.gmail.com with ESMTPSA id ez3-20020ad45903000000b0061a0f7fb340sm3957382qvb.6.2023.05.29.11.58.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 29 May 2023 11:58:36 -0700 (PDT) From: Adrien Thierry To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Vinod Koul , Kishon Vijay Abraham I Cc: Adrien Thierry , linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org Subject: [PATCH RFC 2/2] phy: qcom-snps-femto-v2: Remove AHB2PHY interface clock Date: Mon, 29 May 2023 14:56:37 -0400 Message-Id: <20230529185638.32376-3-athierry@redhat.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230529185638.32376-1-athierry@redhat.com> References: <20230529185638.32376-1-athierry@redhat.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The AHB2PHY interface clock cfg_ahb_clk is not assigned anywhere in the driver. Moreover, it's not used by any device tree, nor is present in the qcom,usb-snps-femto-v2 bindings. Remove it. Signed-off-by: Adrien Thierry --- I'm not 100% sure if the clock should be removed, or if it should be added to bindings and device trees that use this PHY. Better informed opinions on the topic are highly welcome. drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c | 20 +------------------ 1 file changed, 1 insertion(+), 19 deletions(-) diff --git a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c index 8abf482e81a8..2d9c1105e28c 100644 --- a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c +++ b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c @@ -113,7 +113,6 @@ struct phy_override_seq { * @phy: generic phy * @base: iomapped memory space for snps hs phy * - * @cfg_ahb_clk: AHB2PHY interface clock * @ref_clk: phy reference clock * @phy_reset: phy reset control * @vregs: regulator supplies bulk data @@ -125,7 +124,6 @@ struct qcom_snps_hsphy { struct phy *phy; void __iomem *base; - struct clk *cfg_ahb_clk; struct clk *ref_clk; struct reset_control *phy_reset; struct regulator_bulk_data vregs[SNPS_HS_NUM_VREGS]; @@ -165,7 +163,6 @@ static int qcom_snps_hsphy_suspend(struct qcom_snps_hsphy *hsphy) 0, USB2_AUTO_RESUME); } - clk_disable_unprepare(hsphy->cfg_ahb_clk); clk_disable_unprepare(hsphy->ref_clk); return 0; } @@ -176,12 +173,6 @@ static int qcom_snps_hsphy_resume(struct qcom_snps_hsphy *hsphy) dev_dbg(&hsphy->phy->dev, "Resume QCOM SNPS PHY, mode\n"); - ret = clk_prepare_enable(hsphy->cfg_ahb_clk); - if (ret) { - dev_err(&hsphy->phy->dev, "failed to enable cfg ahb clock\n"); - return ret; - } - ret = clk_prepare_enable(hsphy->ref_clk); if (ret) { dev_err(&hsphy->phy->dev, "failed to enable ref clock\n"); @@ -381,16 +372,10 @@ static int qcom_snps_hsphy_init(struct phy *phy) if (ret) return ret; - ret = clk_prepare_enable(hsphy->cfg_ahb_clk); - if (ret) { - dev_err(&phy->dev, "failed to enable cfg ahb clock, %d\n", ret); - goto poweroff_phy; - } - ret = clk_prepare_enable(hsphy->ref_clk); if (ret) { dev_err(&phy->dev, "failed to enable ref clock, %d\n", ret); - goto disable_ahb_clk; + goto poweroff_phy; } ret = reset_control_assert(hsphy->phy_reset); @@ -463,8 +448,6 @@ static int qcom_snps_hsphy_init(struct phy *phy) disable_ref_clk: clk_disable_unprepare(hsphy->ref_clk); -disable_ahb_clk: - clk_disable_unprepare(hsphy->cfg_ahb_clk); poweroff_phy: regulator_bulk_disable(ARRAY_SIZE(hsphy->vregs), hsphy->vregs); @@ -476,7 +459,6 @@ static int qcom_snps_hsphy_exit(struct phy *phy) struct qcom_snps_hsphy *hsphy = phy_get_drvdata(phy); reset_control_assert(hsphy->phy_reset); - clk_disable_unprepare(hsphy->cfg_ahb_clk); clk_disable_unprepare(hsphy->ref_clk); regulator_bulk_disable(ARRAY_SIZE(hsphy->vregs), hsphy->vregs); hsphy->phy_initialized = false;