From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932891AbcDHMyw (ORCPT ); Fri, 8 Apr 2016 08:54:52 -0400 Received: from bh-25.webhostbox.net ([208.91.199.152]:39283 "EHLO bh-25.webhostbox.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758568AbcDHMyI (ORCPT ); Fri, 8 Apr 2016 08:54:08 -0400 From: Guenter Roeck To: Russell King , Catalin Marinas Cc: Wolfram Sang , Geert Uytterhoeven , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Guenter Roeck Subject: [PATCH 4/6] ARM: Register with kernel restart handler Date: Fri, 8 Apr 2016 05:53:57 -0700 Message-Id: <1460120039-2497-5-git-send-email-linux@roeck-us.net> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1460120039-2497-1-git-send-email-linux@roeck-us.net> References: <1460120039-2497-1-git-send-email-linux@roeck-us.net> X-Authenticated_sender: guenter@roeck-us.net X-OutGoing-Spam-Status: No, score=-1.0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - bh-25.webhostbox.net X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - roeck-us.net X-Get-Message-Sender-Via: bh-25.webhostbox.net: authenticated_id: guenter@roeck-us.net X-Authenticated-Sender: bh-25.webhostbox.net: guenter@roeck-us.net X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org By making use of the kernel restart handler, board specific restart handlers can be prioritized amongst available mechanisms for a particular board or system. Select the default priority of 128 to indicate that the restart callback in the machine description is the default restart mechanism. Signed-off-by: Guenter Roeck --- arch/arm/kernel/setup.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 139791ed473d..232dba199702 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -1002,6 +1002,20 @@ void __init hyp_mode_check(void) #endif } +static void (*__arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd); + +static int arm_restart(struct notifier_block *nb, unsigned long action, + void *data) +{ + __arm_pm_restart(action, data); + return NOTIFY_DONE; +} + +static struct notifier_block arm_restart_nb = { + .notifier_call = arm_restart, + .priority = 128, +}; + void __init setup_arch(char **cmdline_p) { const struct machine_desc *mdesc; @@ -1044,8 +1058,10 @@ void __init setup_arch(char **cmdline_p) paging_init(mdesc); request_standard_resources(mdesc); - if (mdesc->restart) - arm_pm_restart = mdesc->restart; + if (mdesc->restart) { + __arm_pm_restart = mdesc->restart; + register_restart_handler(&arm_restart_nb); + } unflatten_device_tree(); -- 2.5.0 From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@roeck-us.net (Guenter Roeck) Date: Fri, 8 Apr 2016 05:53:57 -0700 Subject: [PATCH 4/6] ARM: Register with kernel restart handler In-Reply-To: <1460120039-2497-1-git-send-email-linux@roeck-us.net> References: <1460120039-2497-1-git-send-email-linux@roeck-us.net> Message-ID: <1460120039-2497-5-git-send-email-linux@roeck-us.net> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org By making use of the kernel restart handler, board specific restart handlers can be prioritized amongst available mechanisms for a particular board or system. Select the default priority of 128 to indicate that the restart callback in the machine description is the default restart mechanism. Signed-off-by: Guenter Roeck --- arch/arm/kernel/setup.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 139791ed473d..232dba199702 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -1002,6 +1002,20 @@ void __init hyp_mode_check(void) #endif } +static void (*__arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd); + +static int arm_restart(struct notifier_block *nb, unsigned long action, + void *data) +{ + __arm_pm_restart(action, data); + return NOTIFY_DONE; +} + +static struct notifier_block arm_restart_nb = { + .notifier_call = arm_restart, + .priority = 128, +}; + void __init setup_arch(char **cmdline_p) { const struct machine_desc *mdesc; @@ -1044,8 +1058,10 @@ void __init setup_arch(char **cmdline_p) paging_init(mdesc); request_standard_resources(mdesc); - if (mdesc->restart) - arm_pm_restart = mdesc->restart; + if (mdesc->restart) { + __arm_pm_restart = mdesc->restart; + register_restart_handler(&arm_restart_nb); + } unflatten_device_tree(); -- 2.5.0