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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 66C46C433FE for ; Mon, 15 Nov 2021 18:02:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 482CD6322D for ; Mon, 15 Nov 2021 18:02:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239972AbhKOSFN (ORCPT ); Mon, 15 Nov 2021 13:05:13 -0500 Received: from mail.kernel.org ([198.145.29.99]:50868 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237855AbhKOR0d (ORCPT ); Mon, 15 Nov 2021 12:26:33 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id C2A23610CA; Mon, 15 Nov 2021 17:17:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1636996643; bh=KlVsIkFsEojfOUHrLD7q+Tntd43NuqdF1aNH8oeQ38w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gHURwg9g/bKWE1lrdAYGsPTQA/UveTfVwxNzAyGRayYlcGAh+j1ihk4awdxJoiiJR QifFy+FxEbHLMjSvHGe8UpsMlRoxGiQUVb+vlEF4fKHPZaDwWJd8XhdjqNDcm1N+fA Ua47M0q2HcbBisfRtRFPnVWuKUElWLhFvZtmyzbI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Markus Schneider-Pargmann , Herbert Xu , Sasha Levin Subject: [PATCH 5.4 215/355] hwrng: mtk - Force runtime pm ops for sleep ops Date: Mon, 15 Nov 2021 18:02:19 +0100 Message-Id: <20211115165320.719332639@linuxfoundation.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211115165313.549179499@linuxfoundation.org> References: <20211115165313.549179499@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Markus Schneider-Pargmann [ Upstream commit b6f5f0c8f72d348b2d07b20d7b680ef13a7ffe98 ] Currently mtk_rng_runtime_suspend/resume is called for both runtime pm and system sleep operations. This is wrong as these should only be runtime ops as the name already suggests. Currently freezing the system will lead to a call to mtk_rng_runtime_suspend even if the device currently isn't active. This leads to a clock warning because it is disabled/unprepared although it isn't enabled/prepared currently. This patch fixes this by only setting the runtime pm ops and forces to call the runtime pm ops from the system sleep ops as well if active but not otherwise. Fixes: 81d2b34508c6 ("hwrng: mtk - add runtime PM support") Signed-off-by: Markus Schneider-Pargmann Signed-off-by: Herbert Xu Signed-off-by: Sasha Levin --- drivers/char/hw_random/mtk-rng.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/char/hw_random/mtk-rng.c b/drivers/char/hw_random/mtk-rng.c index e649be5a5f132..6670516fa194d 100644 --- a/drivers/char/hw_random/mtk-rng.c +++ b/drivers/char/hw_random/mtk-rng.c @@ -173,8 +173,13 @@ static int mtk_rng_runtime_resume(struct device *dev) return mtk_rng_init(&priv->rng); } -static UNIVERSAL_DEV_PM_OPS(mtk_rng_pm_ops, mtk_rng_runtime_suspend, - mtk_rng_runtime_resume, NULL); +static const struct dev_pm_ops mtk_rng_pm_ops = { + SET_RUNTIME_PM_OPS(mtk_rng_runtime_suspend, + mtk_rng_runtime_resume, NULL) + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) +}; + #define MTK_RNG_PM_OPS (&mtk_rng_pm_ops) #else /* CONFIG_PM */ #define MTK_RNG_PM_OPS NULL -- 2.33.0