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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 38E19C432C1 for ; Tue, 24 Sep 2019 16:44:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0220B217D9 for ; Tue, 24 Sep 2019 16:44:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1569343469; bh=lDL5rQ0iQjQPgcCdFBsieK5RO/jzJBnGB/H48wyFqpE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=VQVxqjejSTEeXyOg+w1FCaum7JD6Ezwluom9XSp7w28GesUfIK3nWT5VXArawiLii +aNUgJHd5+4n1xpJGYOgs9OQzi6mSiboeKxlJw8g1KIcIvkuioKATE2VCWSUvscAKz FrRfGAoolEwaOqnM9lT3DHOYcoUsL/+lbmettLms= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2633171AbfIXQo2 (ORCPT ); Tue, 24 Sep 2019 12:44:28 -0400 Received: from mail.kernel.org ([198.145.29.99]:33444 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2633147AbfIXQoX (ORCPT ); Tue, 24 Sep 2019 12:44:23 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 39B6921783; Tue, 24 Sep 2019 16:44:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1569343462; bh=lDL5rQ0iQjQPgcCdFBsieK5RO/jzJBnGB/H48wyFqpE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MGutvuIVg4mbHxJ0lDIpoL1YJUCZ8ZSM3m0BZbtNgzwT5h0kSySAzGuiFOFM2RIzx 4qx5BCezBq/cWzc17QFyaQZoQODE74cyCSCVOtNHAJaSlviQR2tH0K/cn+g3T0NiaW Tu3EZwv8rHA8gW1pqCdHiQboZE2+aJvsV+xCeCvs= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Geert Uytterhoeven , Simon Horman , Ulf Hansson , Sasha Levin , linux-renesas-soc@vger.kernel.org, linux-clk@vger.kernel.org Subject: [PATCH AUTOSEL 5.3 58/87] clk: renesas: cpg-mssr: Set GENPD_FLAG_ALWAYS_ON for clock domain Date: Tue, 24 Sep 2019 12:41:14 -0400 Message-Id: <20190924164144.25591-58-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190924164144.25591-1-sashal@kernel.org> References: <20190924164144.25591-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore 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