From patchwork Tue Mar 28 11:19:32 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre Belloni X-Patchwork-Id: 9648893 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 02BB3601E9 for ; Tue, 28 Mar 2017 11:22:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D657B27CAF for ; Tue, 28 Mar 2017 11:22:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C965527F81; Tue, 28 Mar 2017 11:22:03 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 5E7CB27CAF for ; Tue, 28 Mar 2017 11:22:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=KZwoGe9SWxqloNSkPszzA6MdHibtibsK8f8rHQNpkpw=; b=iHn9HNO6gGzxDJzrzjc4eJ6hq8 hGStfEdeLVpF5Qd1dS4wJhSBPBxlqTuot+iIPyNJhsv+vl0GNJaBQ+WYDATJ96ugKoi1q1cl99iXr gCtBgLiRN+Fok50MJSEG7evejC4YYKhbyp04u3lAGzz4TKZ8Hsa+a/Xk4bRAiKCMlpRTWYLMsEIoY SrUi0zu5Nvt6cRDjWIwGihAwd/eR3Fm4DGot1pzcyySs6OlYIGYJblTVVYlSsin/mJsxx0xLScxT6 k6zsPtlJwx4fkpdh3KY/G1hWz03bQtcSqEHv0odvZVBratVECutbkOCabgSp/7lHXJ9GPNvMqtrSl iB0nAi8A==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cspCM-0007GH-LK; Tue, 28 Mar 2017 11:22:02 +0000 Received: from mail.free-electrons.com ([62.4.15.54]) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cspAs-0005C8-SW for linux-arm-kernel@lists.infradead.org; Tue, 28 Mar 2017 11:20:36 +0000 Received: by mail.free-electrons.com (Postfix, from userid 110) id AC29C20822; Tue, 28 Mar 2017 13:19:47 +0200 (CEST) Received: from localhost (unknown [88.191.26.124]) by mail.free-electrons.com (Postfix) with ESMTPSA id 8868A20801; Tue, 28 Mar 2017 13:19:47 +0200 (CEST) From: Alexandre Belloni To: Nicolas Ferre Subject: [PATCH v2 05/11] ARM: at91: pm: Simplify at91rm9200_standby Date: Tue, 28 Mar 2017 13:19:32 +0200 Message-Id: <20170328111938.21297-6-alexandre.belloni@free-electrons.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170328111938.21297-1-alexandre.belloni@free-electrons.com> References: <20170328111938.21297-1-alexandre.belloni@free-electrons.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170328_042032_076880_544DF614 X-CRM114-Status: GOOD ( 10.36 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Boris Brezillon , Alexandre Belloni , Wenyou.Yang@microchip.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Since 2008, AT91_MC_SDRAMC_LPR is set to 0 at kernel initialization. There is no use saving, changing and restoring it. Signed-off-by: Alexandre Belloni --- arch/arm/mach-at91/pm.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index a35b1541b328..3d68d93c11c7 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -222,20 +222,15 @@ static void at91_pm_set_standby(void (*at91_standby)(void)) */ static void at91rm9200_standby(void) { - u32 lpr = at91_ramc_read(0, AT91_MC_SDRAMC_LPR); - asm volatile( "b 1f\n\t" ".align 5\n\t" "1: mcr p15, 0, %0, c7, c10, 4\n\t" - " str %0, [%1, %2]\n\t" - " str %3, [%1, %4]\n\t" + " str %2, [%1, %3]\n\t" " mcr p15, 0, %0, c7, c0, 4\n\t" - " str %5, [%1, %2]" : - : "r" (0), "r" (pm_data.ramc[0]), "r" (AT91_MC_SDRAMC_LPR), - "r" (1), "r" (AT91_MC_SDRAMC_SRR), - "r" (lpr)); + : "r" (0), "r" (pm_data.ramc[0]), + "r" (1), "r" (AT91_MC_SDRAMC_SRR)); } /* We manage both DDRAM/SDRAM controllers, we need more than one value to