Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752574AbaAQMeV (ORCPT ); Fri, 17 Jan 2014 07:34:21 -0500 Received: from mail-pd0-f182.google.com ([209.85.192.182]:35868 "EHLO mail-pd0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751958AbaAQMeQ (ORCPT ); Fri, 17 Jan 2014 07:34:16 -0500 From: Hanjun Guo To: "Rafael J. Wysocki" , Catalin Marinas , Will Deacon , Russell King - ARM Linux Cc: linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Grant Likely , Matthew Garrett , Olof Johansson , Linus Walleij , Bjorn Helgaas , Rob Herring , Mark Rutland , Arnd Bergmann , patches@linaro.org, linux-kernel@vger.kernel.org, linaro-kernel@lists.linaro.org, linaro-acpi@lists.linaro.org, Charles.Garcia-Tobin@arm.com, Hanjun Guo , Graeme Gregory Subject: [PATCH 05/20] ARM64 / ACPI: Introduce lowlevel suspend function Date: Fri, 17 Jan 2014 20:24:59 +0800 Message-Id: <1389961514-13562-6-git-send-email-hanjun.guo@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1389961514-13562-1-git-send-email-hanjun.guo@linaro.org> References: <1389961514-13562-1-git-send-email-hanjun.guo@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Lowlevel suspend function is needed for ACPI based suspend/resume, introduce ARM related lowlevel function in this patch. Signed-off-by: Graeme Gregory Signed-off-by: Hanjun Guo --- arch/arm64/include/asm/acpi.h | 4 ++++ drivers/acpi/plat/arm-core.c | 7 +++++++ 2 files changed, 11 insertions(+) diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h index 908d71b..e108d9c 100644 --- a/arch/arm64/include/asm/acpi.h +++ b/arch/arm64/include/asm/acpi.h @@ -79,6 +79,10 @@ void arch_fix_phys_package_id(int num, u32 slot); /* temperally define -1 to make acpi core compilerable */ #define cpu_physical_id(cpu) -1 +/* Low-level suspend routine. */ +extern int (*acpi_suspend_lowlevel)(void); +#define acpi_wakeup_address (0) + #else /* !CONFIG_ACPI */ #define acpi_disabled 1 /* ACPI sometimes enabled on ARM */ #define acpi_noirq 1 /* ACPI sometimes enabled on ARM */ diff --git a/drivers/acpi/plat/arm-core.c b/drivers/acpi/plat/arm-core.c index 162a1ab..3c8521d 100644 --- a/drivers/acpi/plat/arm-core.c +++ b/drivers/acpi/plat/arm-core.c @@ -207,3 +207,10 @@ static int __init parse_acpi(char *arg) return 0; } early_param("acpi", parse_acpi); + +/* + * acpi_suspend_lowlevel() - save kernel state and suspend. + * + * TBD when ARM/ARM64 starts to support suspend... + */ +int (*acpi_suspend_lowlevel)(void); -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/