@@ -1,6 +1,8 @@
# Common support
obj-y := clock.o devices.o gpio.o icoll.o iomux.o ocotp.o system.o timer.o
+obj-$(CONFIG_PM) += pm.o
+
obj-$(CONFIG_SOC_IMX23) += clock-mx23.o mm-mx23.o
obj-$(CONFIG_SOC_IMX28) += clock-mx28.o mm-mx28.o
new file mode 100644
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2010 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/suspend.h>
+#include <linux/io.h>
+#include <mach/system.h>
+
+static int mxs_suspend_enter(suspend_state_t state)
+{
+ switch (state) {
+ case PM_SUSPEND_MEM:
+ arch_idle();
+ break;
+
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static struct platform_suspend_ops mxs_suspend_ops = {
+ .enter = mxs_suspend_enter,
+ .valid = suspend_valid_only_mem,
+};
+
+static int __init mxs_pm_init(void)
+{
+ suspend_set_ops(&mxs_suspend_ops);
+ return 0;
+}
+device_initcall(mxs_pm_init);
This is a very initial pm support and basically does nothing. With this pm support entry, drivers can start testing their own pm functions. Signed-off-by: Shawn Guo <shawn.guo@freescale.com> --- Changes for v2: - Let build of pm.c depend on CONFIG_PM - Remove the blank line above device_initcall in pm.c arch/arm/mach-mxs/Makefile | 2 ++ arch/arm/mach-mxs/pm.c | 43 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 45 insertions(+), 0 deletions(-) create mode 100644 arch/arm/mach-mxs/pm.c