From patchwork Thu Apr 4 07:13:19 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anand Moon X-Patchwork-Id: 13617334 Received: from mail-pl1-f174.google.com (mail-pl1-f174.google.com [209.85.214.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3D8535B1EB; Thu, 4 Apr 2024 07:15:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.174 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712214908; cv=none; b=ovNZf7jf8jicgBzM7Fvm4pQR3oPTqDxOQar9wBh/ixHxJVtytMuSMiWHkk5S8oj2jt7x7WAQ67PpTihYMN1bBvepOoRohdxXb6jWNb2+QWMQa+nzjKp0Ja+rnniP5YwaungfeK7UgegYBZaiIS6NZVcUhf7zeN4+OAqSP/iIziI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712214908; c=relaxed/simple; bh=l2jjsxz/9h2qnDtVCAtjskSge0cYGkUEZQyYbiVVEGw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=JZOd+KAaRuC1xOKLOLO4VvwbkIk1E5VZsjcb4NQlY1UV+OyP9xm0J9LbVVFV81TKkzOn0405jtZrhJqKwdyQAyp43oxj9pqz6PJfKa6RLvTbVyk9aFo4NOwn0V9LSJEXwvOOlT85oQoMqa74S+GA8SUyaqmdYAE0zFsG6Fn6EjY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=VjYeF7qO; arc=none smtp.client-ip=209.85.214.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="VjYeF7qO" Received: by mail-pl1-f174.google.com with SMTP id d9443c01a7336-1e220e40998so4674415ad.1; Thu, 04 Apr 2024 00:15:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1712214906; x=1712819706; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=rinkV9M1GdwvRaIXYpdNquzoQdVjkSfszcTQAo+0cCg=; b=VjYeF7qOTbMtgUKZBrptmHYLaTvJlK1DEJVgWVEZlIfylGOdJpqdZV2wyqtUbDGe1I uwmFNVGUVqCR6jiYJMetThjGoMPDtN0M92o+FVr1ACryNf6DOaos2D5ro+PXOzGSpHkZ FZk0ItX5RiFJtTL5wb1QUImddrDZEju4XRy0ytBXVtagIcNj7sqSGzwCoU7w9cj+WlMT DB8VmueI7eu4sBRwp+tlhX+zNCwtk2qpbNapjs4f8cHoxZ+DazJxrdIxI91M0aGafWC5 ClZVGgqkpM4GXEmmvaGoJG+yTD6yY1hOlrc/tfvARrcYlTYsHXGmhu+F10NzTe5WxHZh Kb5Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712214906; x=1712819706; 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=rinkV9M1GdwvRaIXYpdNquzoQdVjkSfszcTQAo+0cCg=; b=MwTiyNgDAX45L7Pgw5F8EfSO5QyoO8tzU2+3BNec0gPbUJgXfnz6TVAlD3kkNLP3vT +Ha33m9wn9YRD4zDqks63eSlCkWXh//rBNsFEL2Bcy+cLsraso8qjD39LCSH/3u8iaqO Ysfo7//exRI1gumxpKZM7PbURhQHbOxzhVPqiH6Syw120lmxHqGbvXzxXR45a+jtx1Lo 4Ju9yxCivuv2T1QfEHKb63SPkr+R3xh6F+RGjoVEuT8HOa9q1Cl9+FErwhPOseF4yVRH O0M541GO1FRTyTTf8gxgM5nMwU19dDt7GT4vI4HdAwsvEvU+OmIQco7zNvHVoaoBcwIe kw1w== X-Forwarded-Encrypted: i=1; AJvYcCVC2W9mfMUojxD58AHWm8Co/kqns1iVGNAHOg6b9YRG5xWDBFKVdcq/GikrKKEAWuz03l3q4spYwVn9EvJQ6CFAKPM/w9aDyscPxAas0wY0dEpALdIQNB0/HkTYF4hYFpXGeGPKTKaUStB8du/l8azw1v2xheYZ10Km7M+JUvqz3VIT8QPmXUQbfZY= X-Gm-Message-State: AOJu0Yyy6z4C1hSsbBZ5vHBff4Zw5xUjobO98r2KKbnNrUhRQI64A6c/ eLrKF8emaB9h7Uza8mfqpBNQl96KL1Go6q9xr44GhGKNtA30ZwD9 X-Google-Smtp-Source: AGHT+IE538Vd8oFoNsf4W8iPSGIGPmsJQtB4mfqWsgTvwN90yY9UPLOYOos5v0PPJN/c45lpauVNXw== X-Received: by 2002:a17:902:ca8d:b0:1e2:9d65:253f with SMTP id v13-20020a170902ca8d00b001e29d65253fmr1362119pld.29.1712214906423; Thu, 04 Apr 2024 00:15:06 -0700 (PDT) Received: from localhost.localdomain ([113.30.217.222]) by smtp.gmail.com with ESMTPSA id h20-20020a170902f2d400b001e26c4823d0sm5220873plc.52.2024.04.04.00.15.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Apr 2024 00:15:06 -0700 (PDT) From: Anand Moon To: Alan Stern , Greg Kroah-Hartman , Krzysztof Kozlowski , Alim Akhtar Cc: Anand Moon , Christophe JAILLET , Johan Hovold , linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 3/6] usb: ohci-exynos: Use devm_clk_get_enabled() helpers Date: Thu, 4 Apr 2024 12:43:19 +0530 Message-ID: <20240404071350.4242-4-linux.amoon@gmail.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240404071350.4242-1-linux.amoon@gmail.com> References: <20240404071350.4242-1-linux.amoon@gmail.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The devm_clk_get_enabled() helpers: - call devm_clk_get() - call clk_prepare_enable() and register what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids the calls to clk_disable_unprepare(). While at it, use dev_err_probe consistently, and use its return value to return the error code. Signed-off-by: Anand Moon --- v2: new changes in this series. --- drivers/usb/host/ohci-exynos.c | 19 +++++-------------- 1 file changed, 5 insertions(+), 14 deletions(-) diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c index 20e26a474591..85d04ae0ae40 100644 --- a/drivers/usb/host/ohci-exynos.c +++ b/drivers/usb/host/ohci-exynos.c @@ -135,20 +135,15 @@ static int exynos_ohci_probe(struct platform_device *pdev) err = exynos_ohci_get_phy(&pdev->dev, exynos_ohci); if (err) - goto fail_clk; - - exynos_ohci->clk = devm_clk_get(&pdev->dev, "usbhost"); + goto fail_io; + exynos_ohci->clk = devm_clk_get_enabled(&pdev->dev, "usbhost"); if (IS_ERR(exynos_ohci->clk)) { - dev_err(&pdev->dev, "Failed to get usbhost clock\n"); - err = PTR_ERR(exynos_ohci->clk); - goto fail_clk; + usb_put_hcd(hcd); + return dev_err_probe(&pdev->dev, PTR_ERR(exynos_ohci->clk), + "Failed to get usbhost clock\n"); } - err = clk_prepare_enable(exynos_ohci->clk); - if (err) - goto fail_clk; - hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res); if (IS_ERR(hcd->regs)) { err = PTR_ERR(hcd->regs); @@ -191,8 +186,6 @@ static int exynos_ohci_probe(struct platform_device *pdev) exynos_ohci_phy_disable(&pdev->dev); pdev->dev.of_node = exynos_ohci->of_node; fail_io: - clk_disable_unprepare(exynos_ohci->clk); -fail_clk: usb_put_hcd(hcd); return err; } @@ -208,8 +201,6 @@ static void exynos_ohci_remove(struct platform_device *pdev) exynos_ohci_phy_disable(&pdev->dev); - clk_disable_unprepare(exynos_ohci->clk); - usb_put_hcd(hcd); }