From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 75B4B289E13; Sun, 6 Sep 2026 06:36:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788676601; cv=none; b=G0iyjax2UXfOLC//ytpDGAE5Dx+jesUJPlHWcZN0KR6wg5jQebwXDqWV3MgqP/BKEJsPlVa4v9hcc9hRALdOwsVjRi1lE7cgfh6lBrQi/IbE0hNE82ae9p3RoMgIzwGdHP0L+8DJUWnkA1AFmZxrwezBP45uuRz/C4siGoIH4K8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788676601; c=relaxed/simple; bh=QOUsBtoEg4BynXVB8fa3F9ZuEnhAK9rBDApmE/Z0T7c=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=P28IYGDAa4DR0fv1mOl+c4p/HY+81nv7WEsKV9Mqy5g1LUrsKKuKCSkDFRCLTFal56sGQo6s/csGB9eHM/rDzaaHO4N0q6lbgmUZIFlgqulU84foc8+JIUHFNOpV/1jVBmt8ubIJhHR2aIsW8MI7G8azuNiiPB59wi71+e/gFxs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hZwsAtnS; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="hZwsAtnS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EDDB61F00A3A; Sun, 6 Sep 2026 06:36:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788676600; bh=LdWFaY+659TJeghUS00OCQVm/dbkE61g4L6n1Uf8P64=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=hZwsAtnSZiNbsraqg3ePULpzShVAH0KHpa/aGpD03JbrVuNhAzAVnxT9M4czVrb9P YbvpAU4fENNhGr2OahAwDGq6PMayeDGICPWCbnhC4F4x0q1wL60qL/X5yon9CfZyq7 QUISVin2a014Hij/AA88BoI+oCZaheFpnqpzY6Z9MwFm18FES+9pjMhHRDQurrN/a5 WdTBMWdkOhKVBvrgjtUzE2baGnTRe0LcAqGoEtyKnUHYk16VcOeO9BBBeuakgmM46J QLuHBWSO/Ac4KRw9rSPNSUvzbdrUWZ1D0MQHU5PNiFjRnPon6tr7mCYbL+c3f9CHL1 2l0C+VcMswvJg== Message-ID: Date: Sun, 6 Sep 2026 08:36:32 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] usb: host: ohci-exynos: Propagate clock errors from resume To: Pengpeng Hou , Alan Stern , Greg Kroah-Hartman Cc: Peter Griffin , Alim Akhtar , Jingoo Han , linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260906034031.85248-1-hppiscas@163.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 06/09/2026 05:40, Pengpeng Hou wrote: > exynos_ohci_resume() ignores clk_prepare_enable() and proceeds to PHY No, clk_prepare_enable() is not ignored. It is called. What is ignored is the return status, because it does not matter. It cannot possibly fail, it is simple MMIO access within internals of the SoC. Anyway, please rephrase the commit msg. > and OHCI restoration. > > Return a clock failure before enabling the PHY. The existing PHY failure > path continues to undo a successfully enabled clock. > > The issue was found by our static-analysis tool and manually reviewed. > > Fixes: e864abed546f ("USB: ohci-exynos: add clock gating to suspend/resume") IMO, I have doubts whether this is a fix, because actual error cannot happen in practice. Best regards, Krzysztof