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=-10.0 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,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 243B5C433DF for ; Tue, 23 Jun 2020 20:03:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EE6742078A for ; Tue, 23 Jun 2020 20:03:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592942586; bh=krHgMfCn8WZvzHVDZ4TckLPbXuEfsPCvYgWThdNfNgI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=2XIEsZLiKJcTPkjcRP4VrkFxJk28cP1rEhuQOUcJ2gWqNeytMRGnURDK+CP6vRT59 rujOgkG/JbNXtDGSQMahUo61iek9gjLJRrUlHhz5V2hXRjREtE3ITw7bMfm6YGdGuC wGXC/o5FVLbpAw3OHPExhklTXsz8okO+C8XazyX4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387968AbgFWUDE (ORCPT ); Tue, 23 Jun 2020 16:03:04 -0400 Received: from mail.kernel.org ([198.145.29.99]:40418 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387956AbgFWUDA (ORCPT ); Tue, 23 Jun 2020 16:03:00 -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 702402080C; Tue, 23 Jun 2020 20:02:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592942578; bh=krHgMfCn8WZvzHVDZ4TckLPbXuEfsPCvYgWThdNfNgI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=F7ohRaPbiJmaoPirI6lFM/QrccMIJx8okv8Z7pr4LmLjCINx3FzyBHY5/xV0CQO1n wYqTHOFqgIAJdN3JiwKjJQ6DXmS9FtEy0YhwR/NzaT2d3e/VcSl8FTOfehKdAMp6wT US864nFRXdT+bqV4fjKiTjrvVhU7Exw8cAZ9kuNk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Geert Uytterhoeven , Sasha Levin Subject: [PATCH 5.7 053/477] clk: renesas: cpg-mssr: Fix STBCR suspend/resume handling Date: Tue, 23 Jun 2020 21:50:50 +0200 Message-Id: <20200623195410.113611492@linuxfoundation.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200623195407.572062007@linuxfoundation.org> References: <20200623195407.572062007@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Geert Uytterhoeven [ Upstream commit ace342097768e35fd41934285604fa97da1e235a ] On SoCs with Standby Control Registers (STBCRs) instead of Module Stop Control Registers (MSTPCRs), the suspend handler saves the wrong registers, and the resume handler prints the wrong register in an error message. Fortunately this cannot happen yet, as the suspend/resume code is used on PSCI systems only, and systems with STBCRs (RZ/A1 and RZ/A2) do not use PSCI. Still, it is better to fix this, to avoid this becoming a problem in the future. Distinguish between STBCRs and MSTPCRs where needed. Replace the useless printing of the virtual register address in the resume error message by printing the register index. Fixes: fde35c9c7db5732c ("clk: renesas: cpg-mssr: Add R7S9210 support") Signed-off-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20200507074713.30113-1-geert+renesas@glider.be Signed-off-by: Sasha Levin --- drivers/clk/renesas/renesas-cpg-mssr.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c index a2663fbbd7a51..d6a53c99b114a 100644 --- a/drivers/clk/renesas/renesas-cpg-mssr.c +++ b/drivers/clk/renesas/renesas-cpg-mssr.c @@ -812,7 +812,8 @@ static int cpg_mssr_suspend_noirq(struct device *dev) /* Save module registers with bits under our control */ for (reg = 0; reg < ARRAY_SIZE(priv->smstpcr_saved); reg++) { if (priv->smstpcr_saved[reg].mask) - priv->smstpcr_saved[reg].val = + priv->smstpcr_saved[reg].val = priv->stbyctrl ? + readb(priv->base + STBCR(reg)) : readl(priv->base + SMSTPCR(reg)); } @@ -872,8 +873,9 @@ static int cpg_mssr_resume_noirq(struct device *dev) } if (!i) - dev_warn(dev, "Failed to enable SMSTP %p[0x%x]\n", - priv->base + SMSTPCR(reg), oldval & mask); + dev_warn(dev, "Failed to enable %s%u[0x%x]\n", + priv->stbyctrl ? "STB" : "SMSTP", reg, + oldval & mask); } return 0; -- 2.25.1