From: Santosh Shilimkar <santosh.shilimkar@ti.com> To: <linux-arm-kernel@lists.infradead.org> Cc: <linux-kernel@vger.kernel.org>, <linux@arm.linux.org.uk>, <ccross@android.com>, <rjw@sisk.pl>, <khilman@ti.com>, Santosh Shilimkar <santosh.shilimkar@ti.com> Subject: [PATCH v2 2/5] cpu_pm: call notifiers during suspend Date: Sat, 3 Sep 2011 20:09:12 +0530 [thread overview] Message-ID: <1315060755-4613-3-git-send-email-santosh.shilimkar@ti.com> (raw) In-Reply-To: <1315060755-4613-1-git-send-email-santosh.shilimkar@ti.com> From: Colin Cross <ccross@android.com> Implements syscore_ops in cpu_pm to call the cpu and cpu cluster notifiers during suspend and resume, allowing drivers receiving the notifications to avoid implementing syscore_ops. Signed-off-by: Colin Cross <ccross@android.com> [santosh.shilimkar@ti.com: Rebased against 3.1-rc4] Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> --- kernel/cpu_pm.c | 33 +++++++++++++++++++++++++++++++++ 1 files changed, 33 insertions(+), 0 deletions(-) diff --git a/kernel/cpu_pm.c b/kernel/cpu_pm.c index 54aa892..3d115d0 100644 --- a/kernel/cpu_pm.c +++ b/kernel/cpu_pm.c @@ -20,6 +20,7 @@ #include <linux/module.h> #include <linux/notifier.h> #include <linux/spinlock.h> +#include <linux/syscore_ops.h> static DEFINE_RWLOCK(cpu_pm_notifier_lock); static RAW_NOTIFIER_HEAD(cpu_pm_notifier_chain); @@ -113,3 +114,35 @@ int cpu_cluster_pm_exit(void) return ret; } EXPORT_SYMBOL_GPL(cpu_cluster_pm_exit); + +#ifdef CONFIG_PM +static int cpu_pm_suspend(void) +{ + int ret; + + ret = cpu_pm_enter(); + if (ret) + return ret; + + ret = cpu_cluster_pm_enter(); + return ret; +} + +static void cpu_pm_resume(void) +{ + cpu_cluster_pm_exit(); + cpu_pm_exit(); +} + +static struct syscore_ops cpu_pm_syscore_ops = { + .suspend = cpu_pm_suspend, + .resume = cpu_pm_resume, +}; + +static int cpu_pm_init(void) +{ + register_syscore_ops(&cpu_pm_syscore_ops); + return 0; +} +core_initcall(cpu_pm_init); +#endif -- 1.7.4.1
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From: santosh.shilimkar@ti.com (Santosh Shilimkar) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 2/5] cpu_pm: call notifiers during suspend Date: Sat, 3 Sep 2011 20:09:12 +0530 [thread overview] Message-ID: <1315060755-4613-3-git-send-email-santosh.shilimkar@ti.com> (raw) In-Reply-To: <1315060755-4613-1-git-send-email-santosh.shilimkar@ti.com> From: Colin Cross <ccross@android.com> Implements syscore_ops in cpu_pm to call the cpu and cpu cluster notifiers during suspend and resume, allowing drivers receiving the notifications to avoid implementing syscore_ops. Signed-off-by: Colin Cross <ccross@android.com> [santosh.shilimkar at ti.com: Rebased against 3.1-rc4] Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> --- kernel/cpu_pm.c | 33 +++++++++++++++++++++++++++++++++ 1 files changed, 33 insertions(+), 0 deletions(-) diff --git a/kernel/cpu_pm.c b/kernel/cpu_pm.c index 54aa892..3d115d0 100644 --- a/kernel/cpu_pm.c +++ b/kernel/cpu_pm.c @@ -20,6 +20,7 @@ #include <linux/module.h> #include <linux/notifier.h> #include <linux/spinlock.h> +#include <linux/syscore_ops.h> static DEFINE_RWLOCK(cpu_pm_notifier_lock); static RAW_NOTIFIER_HEAD(cpu_pm_notifier_chain); @@ -113,3 +114,35 @@ int cpu_cluster_pm_exit(void) return ret; } EXPORT_SYMBOL_GPL(cpu_cluster_pm_exit); + +#ifdef CONFIG_PM +static int cpu_pm_suspend(void) +{ + int ret; + + ret = cpu_pm_enter(); + if (ret) + return ret; + + ret = cpu_cluster_pm_enter(); + return ret; +} + +static void cpu_pm_resume(void) +{ + cpu_cluster_pm_exit(); + cpu_pm_exit(); +} + +static struct syscore_ops cpu_pm_syscore_ops = { + .suspend = cpu_pm_suspend, + .resume = cpu_pm_resume, +}; + +static int cpu_pm_init(void) +{ + register_syscore_ops(&cpu_pm_syscore_ops); + return 0; +} +core_initcall(cpu_pm_init); +#endif -- 1.7.4.1
next prev parent reply other threads:[~2011-09-03 14:39 UTC|newest] Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-09-03 14:39 [PATCH v2 0/5] CPU PM notifiers Santosh Shilimkar 2011-09-03 14:39 ` Santosh Shilimkar 2011-09-03 14:39 ` [PATCH v2 1/5] cpu_pm: Add cpu power management notifiers Santosh Shilimkar 2011-09-03 14:39 ` Santosh Shilimkar 2011-09-09 22:56 ` Andrew Morton 2011-09-09 22:56 ` Andrew Morton 2011-09-10 4:02 ` Santosh 2011-09-10 4:02 ` Santosh 2011-09-10 9:31 ` Santosh 2011-09-10 9:31 ` Santosh 2011-09-12 5:02 ` Santosh 2011-09-12 5:02 ` Santosh 2011-09-13 5:42 ` Santosh 2011-09-13 5:42 ` Santosh 2011-09-03 14:39 ` Santosh Shilimkar [this message] 2011-09-03 14:39 ` [PATCH v2 2/5] cpu_pm: call notifiers during suspend Santosh Shilimkar 2011-09-07 20:02 ` Kevin Hilman 2011-09-07 20:02 ` Kevin Hilman 2011-09-08 5:16 ` Santosh 2011-09-08 5:16 ` Santosh 2011-09-08 14:01 ` Kevin Hilman 2011-09-08 14:01 ` Kevin Hilman 2011-09-08 16:12 ` Santosh 2011-09-08 16:12 ` Santosh 2011-09-08 17:56 ` Kevin Hilman 2011-09-08 18:04 ` Colin Cross 2011-09-08 18:04 ` Colin Cross 2011-09-08 20:51 ` Kevin Hilman 2011-09-09 6:27 ` Santosh 2011-09-09 6:27 ` Santosh 2011-09-03 14:39 ` [PATCH v2 3/5] ARM: gic: Use cpu pm notifiers to save gic state Santosh Shilimkar 2011-09-03 14:39 ` Santosh Shilimkar 2011-09-03 14:39 ` [PATCH v2 4/5] ARM: vfp: Use cpu pm notifiers to save vfp state Santosh Shilimkar 2011-09-03 14:39 ` Santosh Shilimkar 2011-09-03 14:39 ` [PATCH v2 5/5] ARM: gic: Allow gic arch extensions to provide irqchip flags Santosh Shilimkar 2011-09-03 14:39 ` Santosh Shilimkar 2011-09-06 2:34 ` [PATCH v2 0/5] CPU PM notifiers Shawn Guo 2011-09-06 2:34 ` Shawn Guo 2011-09-06 5:17 ` Santosh 2011-09-06 5:17 ` Santosh 2011-09-09 18:00 ` Kevin Hilman 2011-09-09 18:00 ` Kevin Hilman 2011-09-10 5:53 ` Santosh 2011-09-10 5:53 ` Santosh 2011-09-16 4:50 ` Santosh 2011-09-16 4:50 ` Santosh
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