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authorRussell King <rmk+kernel@arm.linux.org.uk>2011-11-21 21:56:56 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-11-21 21:56:56 +0000
commit2d13ccaa8797d7e599f3792aed4b1e44b47f94a5 (patch)
tree7079c1610373fc6709c3a285a53099beaf21295a /drivers/sh/pm_runtime.c
parent59136ef3c596606d3eef920dc3e0fdfa2ce52c6f (diff)
parent11f1c5de7be06bbb51363002ebc4d00edc2677df (diff)
downloadolio-linux-3.10-2d13ccaa8797d7e599f3792aed4b1e44b47f94a5.tar.xz
olio-linux-3.10-2d13ccaa8797d7e599f3792aed4b1e44b47f94a5.zip
Merge branch 'irqchip-consolidation' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into devel-stable
Conflicts: arch/arm/mach-omap2/board-4430sdp.c arch/arm/mach-omap2/board-omap4panda.c arch/arm/mach-omap2/include/mach/omap4-common.h arch/arm/plat-omap/include/plat/irqs.h The changes to omap4-common.h were moved to arch/arm/mach-omap2/common.h and the other trivial conflicts resolved. The now empty ifdef in irqs.h was also eliminated.
Diffstat (limited to 'drivers/sh/pm_runtime.c')
-rw-r--r--drivers/sh/pm_runtime.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/sh/pm_runtime.c b/drivers/sh/pm_runtime.c
new file mode 100644
index 00000000000..afe9282629b
--- /dev/null
+++ b/drivers/sh/pm_runtime.c
@@ -0,0 +1,65 @@
+/*
+ * Runtime PM support code
+ *
+ * Copyright (C) 2009-2010 Magnus Damm
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/pm_runtime.h>
+#include <linux/pm_domain.h>
+#include <linux/pm_clock.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/sh_clk.h>
+#include <linux/bitmap.h>
+#include <linux/slab.h>
+
+#ifdef CONFIG_PM_RUNTIME
+
+static int default_platform_runtime_idle(struct device *dev)
+{
+ /* suspend synchronously to disable clocks immediately */
+ 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 sh_pm_runtime_init(void)
+{
+ pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier);
+ return 0;
+}
+core_initcall(sh_pm_runtime_init);
+
+static int __init sh_pm_runtime_late_init(void)
+{
+ pm_genpd_poweroff_unused();
+ return 0;
+}
+late_initcall(sh_pm_runtime_late_init);