From: cw00.choi@samsung•com (Chanwoo Choi)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 2/4] ARM: EXYNOS4: Support for generic Clock manipulation PM callbacks
Date: Thu, 11 Aug 2011 13:55:17 +0900 [thread overview]
Message-ID: <4E4360B5.3050203@samsung.com> (raw)
Signed-off-by: Chanwoo Choi <cw00.choi@samsung•com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung•com>
---
arch/arm/mach-exynos4/Makefile | 2 +-
arch/arm/mach-exynos4/pm-runtime.c | 56 ++++++++++++++++++++++++++++++++++++
2 files changed, 57 insertions(+), 1 deletions(-)
create mode 100644 arch/arm/mach-exynos4/pm-runtime.c
diff --git a/arch/arm/mach-exynos4/Makefile b/arch/arm/mach-exynos4/Makefile
index 97c31ce..28cdb8b 100644
--- a/arch/arm/mach-exynos4/Makefile
+++ b/arch/arm/mach-exynos4/Makefile
@@ -5,7 +5,7 @@
#
# Licensed under GPLv2
-obj-y :=
+obj-y := pm-runtime.o
obj-m :=
obj-n :=
obj- :=
diff --git a/arch/arm/mach-exynos4/pm-runtime.c b/arch/arm/mach-exynos4/pm-runtime.c
new file mode 100644
index 0000000..4fe9f73
--- /dev/null
+++ b/arch/arm/mach-exynos4/pm-runtime.c
@@ -0,0 +1,56 @@
+/* linux/arch/arm/mach-exynos4/pm-runtime.c
+
+ * Exynos4210 Power management support
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/pm_runtime.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/bitmap.h>
+#include <linux/slab.h>
+
+#ifdef CONFIG_PM_RUNTIME
+
+static int default_platform_runtime_idle(struct device *dev)
+{
+ return pm_runtime_suspend(dev);
+}
+
+static struct dev_pm_domain default_pm_domain = {
+ .ops = {
+ .runtime_suspend = pm_clk_suspend,
+ .runtime_resume = pm_clk_resume,
+ .runtime_idle = default_platform_runtime_idle,
+ USE_PLATFORM_PM_SLEEP_OPS
+ },
+};
+
+#define DEFAULT_PM_DOMAIN_PTR (&default_pm_domain)
+
+#else
+
+#define DEFAULT_PM_DOMAIN_PTR NULL
+
+#endif /* CONFIG_PM_RUNTIME */
+
+static struct pm_clk_notifier_block platform_bus_notifier = {
+ .pm_domain = DEFAULT_PM_DOMAIN_PTR,
+ .con_ids = { NULL, },
+};
+
+static int __init exynos4_pm_runtime_init(void)
+{
+ pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier);
+ return 0;
+}
+core_initcall(exynos4_pm_runtime_init);
--
1.7.0.4
next reply other threads:[~2011-08-11 4:55 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-11 4:55 Chanwoo Choi [this message]
2011-10-02 7:08 ` [PATCH 2/4] ARM: EXYNOS4: Support for generic Clock manipulation PM callbacks Kukjin Kim
2011-10-05 1:57 ` Chanwoo Choi
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