From patchwork Thu Feb 2 14:45:16 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre Belloni X-Patchwork-Id: 9552087 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 57B64602F0 for ; Thu, 2 Feb 2017 14:53:11 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4BDF527DF9 for ; Thu, 2 Feb 2017 14:53:11 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 40BFA28477; Thu, 2 Feb 2017 14:53:11 +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 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 0D27B27DF9 for ; Thu, 2 Feb 2017 14:53:10 +0000 (UTC) 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 1cZIl4-00053v-GZ; Thu, 02 Feb 2017 14:53:10 +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 1cZIeJ-0000sA-Gf for linux-arm-kernel@lists.infradead.org; Thu, 02 Feb 2017 14:46:18 +0000 Received: by mail.free-electrons.com (Postfix, from userid 110) id 2E7C020DE7; Thu, 2 Feb 2017 15:45:27 +0100 (CET) Received: from localhost (unknown [88.191.26.124]) by mail.free-electrons.com (Postfix) with ESMTPSA id 0C84F20C37; Thu, 2 Feb 2017 15:45:27 +0100 (CET) From: Alexandre Belloni To: Nicolas Ferre Subject: [PATCH 06/13] ARM: at91: pm: simplify at91rm9200_standby Date: Thu, 2 Feb 2017 15:45:16 +0100 Message-Id: <20170202144523.11706-7-alexandre.belloni@free-electrons.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170202144523.11706-1-alexandre.belloni@free-electrons.com> References: <20170202144523.11706-1-alexandre.belloni@free-electrons.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170202_064612_450096_CB3778D5 X-CRM114-Status: UNSURE ( 9.81 ) X-CRM114-Notice: Please train this message. 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 , Ludovic Desroches , Alexandre Belloni , 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 90b78ad20a97..d673996bed77 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