1 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/pm_domain.c b/arch/arm/mach-davinci/pm_domain.c
new file mode 100644
index 0000000000..6b21d5bd99
--- /dev/null
+++ b/arch/arm/mach-davinci/pm_domain.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Runtime PM support code for DaVinci
+ *
+ * Author: Kevin Hilman
+ *
+ * Copyright (C) 2012 Texas Instruments, Inc.
+ */
+#include <linux/init.h>
+#include <linux/pm_runtime.h>
+#include <linux/pm_clock.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+
+static struct dev_pm_domain davinci_pm_domain = {
+	.ops = {
+		USE_PM_CLK_RUNTIME_OPS
+		USE_PLATFORM_PM_SLEEP_OPS
+	},
+};
+
+static struct pm_clk_notifier_block platform_bus_notifier = {
+	.pm_domain = &davinci_pm_domain,
+	.con_ids = { "fck", "master", "slave", NULL },
+};
+
+static int __init davinci_pm_runtime_init(void)
+{
+	if (of_have_populated_dt())
+		return 0;
+
+	/* Use pm_clk as fallback if we're not using genpd. */
+	pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier);
+
+	return 0;
+}
+core_initcall(davinci_pm_runtime_init);