From patchwork Wed Mar 11 12:39:32 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hanjun Guo X-Patchwork-Id: 5984121 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id CECF1BF440 for ; Wed, 11 Mar 2015 12:47:19 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id EC99B20451 for ; Wed, 11 Mar 2015 12:47:18 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 962B220425 for ; Wed, 11 Mar 2015 12:47:17 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1YVfzm-0005xf-3N; Wed, 11 Mar 2015 12:44:18 +0000 Received: from mail-pa0-f51.google.com ([209.85.220.51]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1YVfxD-00048y-QQ for linux-arm-kernel@lists.infradead.org; Wed, 11 Mar 2015 12:41:40 +0000 Received: by padet14 with SMTP id et14so11257653pad.0 for ; Wed, 11 Mar 2015 05:41:18 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=2mK1JLorJX1x3EhnXxBeOEoDpt+b2+MerD1i2/ju5wI=; b=QCQ3RsXpwjWnARrfa2RZOYTir1fcO/Kz7itnZXYzY2un8IHVMJJ4KihXWuAUqcShMu Dv8nl39wNDIgPF1ewDhcoVPY3FZicudTWwsa9Ugyp0CqvqKct66Y6CvwR0LOyADbxEWQ tFxNs72n3S6ePeILYVFLfnf8/TaJqXGjxEQuEvG7Lm74SzmEJiiBmVfyn1Y9+DNL3EEo 6dqBKay/ZSgaMqiNB6XiWlKCpO6ucMDXtwu+em4oyysKR8ikQmh45yYQtq13IFsQpNwU 2nkRV+fBHNFrKqEVI/9ZzWGFQ1m3wxLcHgykaPY9ATLoDOH+4EXvQ3ahOHlltKmCbtfT tcEQ== X-Gm-Message-State: ALoCoQmO6fhLmWggYqyolOpB1Rw4j2ShF1KLSVdWmenhFQ60DhCWYZnP9qRJHHq/U9wNslOcNc1z X-Received: by 10.66.235.36 with SMTP id uj4mr77673310pac.123.1426077678457; Wed, 11 Mar 2015 05:41:18 -0700 (PDT) Received: from localhost ([180.150.153.56]) by mx.google.com with ESMTPSA id t5sm5945703pde.51.2015.03.11.05.41.16 (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Wed, 11 Mar 2015 05:41:17 -0700 (PDT) From: Hanjun Guo To: Catalin Marinas , "Rafael J. Wysocki" , Will Deacon , Olof Johansson , Grant Likely Subject: [PATCH v10 06/21] ACPI / sleep: Introduce CONFIG_ACPI_GENERIC_SLEEP Date: Wed, 11 Mar 2015 20:39:32 +0800 Message-Id: <1426077587-1561-7-git-send-email-hanjun.guo@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1426077587-1561-1-git-send-email-hanjun.guo@linaro.org> References: <1426077587-1561-1-git-send-email-hanjun.guo@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150311_054139_909747_9EE9A36E X-CRM114-Status: GOOD ( 11.97 ) X-Spam-Score: -0.7 (/) Cc: Mark Rutland , Ashwin Chaugule , Lorenzo Pieralisi , Robert Richter , Arnd Bergmann , Graeme Gregory , linaro-acpi@lists.linaro.org, Marc Zyngier , Jon Masters , Timur Tabi , linux-kernel@vger.kernel.org, Tomasz Nowicki , linux-acpi@vger.kernel.org, Mark Brown , Hanjun Guo , suravee.suthikulpanit@amd.com, Sudeep Holla , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Graeme Gregory ACPI 5.1 does not currently support S states for ARM64 hardware but ACPI code will call acpi_target_system_state() and acpi_sleep_init() for device power management, so introduce CONFIG_ACPI_GENERIC_SLEEP and select it for x86 and ia64 only to make sleep functions available, and also introduce stub function to allow other drivers to function until S states are defined for ARM64. It will be no functional change for x86 and IA64. CC: Rafael J. Wysocki Suggested-by: Rafael J. Wysocki Acked-by: Robert Richter Signed-off-by: Graeme Gregory Signed-off-by: Tomasz Nowicki Signed-off-by: Hanjun Guo Acked-by: Lorenzo Pieralisi --- arch/ia64/Kconfig | 1 + arch/x86/Kconfig | 1 + drivers/acpi/Kconfig | 4 ++++ drivers/acpi/Makefile | 2 +- drivers/acpi/internal.h | 4 ++++ 5 files changed, 11 insertions(+), 1 deletion(-) diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 074e52b..e8728d7 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -10,6 +10,7 @@ config IA64 select ARCH_MIGHT_HAVE_PC_SERIO select PCI if (!IA64_HP_SIM) select ACPI if (!IA64_HP_SIM) + select ACPI_GENERIC_SLEEP if ACPI select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI select HAVE_UNSTABLE_SCHED_CLOCK select HAVE_IDE diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index b7d31ca..9804431 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -22,6 +22,7 @@ config X86_64 ### Arch settings config X86 def_bool y + select ACPI_GENERIC_SLEEP if ACPI select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS select ARCH_HAS_FAST_MULTIPLIER diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index e6c3ddd..a7b9120 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -48,9 +48,13 @@ config ACPI_LEGACY_TABLES_LOOKUP config ARCH_MIGHT_HAVE_ACPI_PDC bool +config ACPI_GENERIC_SLEEP + bool + config ACPI_SLEEP bool depends on SUSPEND || HIBERNATION + depends on ACPI_GENERIC_SLEEP default y config ACPI_PROCFS_POWER diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index 623b117..2397822 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -23,7 +23,7 @@ acpi-y += nvs.o # Power management related files acpi-y += wakeup.o -acpi-y += sleep.o +acpi-$(CONFIG_ACPI_GENERIC_SLEEP) += sleep.o acpi-y += device_pm.o acpi-$(CONFIG_ACPI_SLEEP) += proc.o diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 56b321a..b5eef4c 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -161,7 +161,11 @@ void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit); /*-------------------------------------------------------------------------- Suspend/Resume -------------------------------------------------------------------------- */ +#ifdef CONFIG_ACPI_GENERIC_SLEEP extern int acpi_sleep_init(void); +#else +static inline int acpi_sleep_init(void) { return -ENOSYS; } +#endif #ifdef CONFIG_ACPI_SLEEP int acpi_sleep_proc_init(void);