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=unavailable 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 6607AECE58B for ; Sun, 6 Oct 2019 17:35:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 34E162087E for ; Sun, 6 Oct 2019 17:35:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570383350; bh=Z1FXg++vbpg9xKSA6xmGTikQgX/VXgM9vHZDwXnfifc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=kn9n8fR10TP+5fy9jYo2RIRg6JygqYc61tLgvAr5GpKl4V4Mg+ERTGrzGXVNyDFZ6 jrVyd+6KqwxJ/mZMVv/jH1ETtd1edu3ZJNJLz41wrOX16ewEdkj++5FLaRNj8TIxi2 VegkDw0gw/ki0Z0LHCWgYQxsL74T24OvZF4wDRmE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730189AbfJFRft (ORCPT ); Sun, 6 Oct 2019 13:35:49 -0400 Received: from mail.kernel.org ([198.145.29.99]:34332 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730176AbfJFRfl (ORCPT ); Sun, 6 Oct 2019 13:35:41 -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 867ED20700; Sun, 6 Oct 2019 17:35:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570383341; bh=Z1FXg++vbpg9xKSA6xmGTikQgX/VXgM9vHZDwXnfifc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=d7fhCKAR9D3dZkDTM+SmUnpx20zuMD9zuoPY6iB4KVJyeBqqqdrVk8W2BpiFD2n69 w4zoEkxxhICrvPJUuglN3dkSNwvm8jHPOK9AaU7TC19bopbJ7IpYkU2n035qK+9HxV q4iRYQH+S7ROTOMSmcNrrek43vCn8X+Pt+dvtis4= 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 5.2 067/137] clk: renesas: cpg-mssr: Set GENPD_FLAG_ALWAYS_ON for clock domain Date: Sun, 6 Oct 2019 19:20:51 +0200 Message-Id: <20191006171214.797840292@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191006171209.403038733@linuxfoundation.org> References: <20191006171209.403038733@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 9dfa28d6fd9f9..cbe5fb468b7f9 100644 --- a/drivers/clk/renesas/renesas-cpg-mssr.c +++ b/drivers/clk/renesas/renesas-cpg-mssr.c @@ -555,7 +555,8 @@ 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