From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B0839C4360C for ; Sun, 6 Oct 2019 17:41:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7C8E520700 for ; Sun, 6 Oct 2019 17:41:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570383680; bh=lDL5rQ0iQjQPgcCdFBsieK5RO/jzJBnGB/H48wyFqpE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=MFWFCXb8uohFz0GMy6A57Bg2AwXMJ2uO2TTKEqHkZ60wjji75dRQvop7eVH4cZKJV QJY89A33CDNWPmFCv9hATD9ZfepMjeoWDA/3KQRnW3hTOXXkjVrcN3cjJXHb0yrtqS gysuz9h2zp7aA40QOh5pX2rfHOOTZ5p3b1l+GLlk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731178AbfJFRlS (ORCPT ); Sun, 6 Oct 2019 13:41:18 -0400 Received: from mail.kernel.org ([198.145.29.99]:40874 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729468AbfJFRlP (ORCPT ); Sun, 6 Oct 2019 13:41:15 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 98F2D20700; Sun, 6 Oct 2019 17:41:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570383674; bh=lDL5rQ0iQjQPgcCdFBsieK5RO/jzJBnGB/H48wyFqpE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bPvh9aZbHCLe9JYGGt0yJ+faRE2bw78mzumCa8C9+c0mzY+qQYjCcxLaAcEd5d20U dJIwBqqa4lCsEeScJ4s+LZrXiK27nz3+JnSGdrRXYZCPfOGXLeiZiK8GqYmKfvQ+YT n8hOzXIkUuapli0nJa0vylHgGZwKTOC2QaXswfv8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Geert Uytterhoeven , Simon Horman , Ulf Hansson , Sasha Levin Subject: [PATCH 5.3 054/166] clk: renesas: cpg-mssr: Set GENPD_FLAG_ALWAYS_ON for clock domain Date: Sun, 6 Oct 2019 19:20:20 +0200 Message-Id: <20191006171217.626162443@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191006171212.850660298@linuxfoundation.org> References: <20191006171212.850660298@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Geert Uytterhoeven [ Upstream commit f787216f33ce5b5a2567766398f44ab62157114c ] The CPG/MSSR Clock Domain driver does not implement the generic_pm_domain.power_{on,off}() callbacks, as the domain itself cannot be powered down. Hence the domain should be marked as always-on by setting the GENPD_FLAG_ALWAYS_ON flag, to prevent the core PM Domain code from considering it for power-off, and doing unnessary processing. Note that this only affects RZ/A2 SoCs. On R-Car Gen2 and Gen3 SoCs, the R-Car SYSC driver handles Clock Domain creation, and offloads only device attachment/detachment to the CPG/MSSR driver. Signed-off-by: Geert Uytterhoeven Reviewed-by: Simon Horman Reviewed-by: Ulf Hansson Signed-off-by: Sasha Levin --- drivers/clk/renesas/renesas-cpg-mssr.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c index d4075b1306742..132cc96895e3a 100644 --- a/drivers/clk/renesas/renesas-cpg-mssr.c +++ b/drivers/clk/renesas/renesas-cpg-mssr.c @@ -551,7 +551,8 @@ static int __init cpg_mssr_add_clk_domain(struct device *dev, genpd = &pd->genpd; genpd->name = np->name; - genpd->flags = GENPD_FLAG_PM_CLK | GENPD_FLAG_ACTIVE_WAKEUP; + genpd->flags = GENPD_FLAG_PM_CLK | GENPD_FLAG_ALWAYS_ON | + GENPD_FLAG_ACTIVE_WAKEUP; genpd->attach_dev = cpg_mssr_attach_dev; genpd->detach_dev = cpg_mssr_detach_dev; pm_genpd_init(genpd, &pm_domain_always_on_gov, false); -- 2.20.1