1 files changed, 54 insertions, 0 deletions

diff --git a/arch/arm/mach-shmobile/pm-r8a7740.c b/arch/arm/mach-shmobile/pm-r8a7740.c
new file mode 100644
index 000000000000..893504d012a6
--- /dev/null
+++ b/arch/arm/mach-shmobile/pm-r8a7740.c
@@ -0,0 +1,54 @@
+/*
+ * r8a7740 power management support
+ *
+ * Copyright (C) 2012  Renesas Solutions Corp.
+ * Copyright (C) 2012  Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * 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/console.h>
+#include <mach/pm-rmobile.h>
+
+#ifdef CONFIG_PM
+static int r8a7740_pd_a4s_suspend(void)
+{
+        /*
+         * The A4S domain contains the CPU core and therefore it should
+         * only be turned off if the CPU is in use.
+         */
+        return -EBUSY;
+}
+
+struct rmobile_pm_domain r8a7740_pd_a4s = {
+        .genpd.name     = "A4S",
+        .bit_shift      = 10,
+        .gov            = &pm_domain_always_on_gov,
+        .no_debug       = true,
+        .suspend        = r8a7740_pd_a4s_suspend,
+};
+
+static int r8a7740_pd_a3sp_suspend(void)
+{
+        /*
+         * Serial consoles make use of SCIF hardware located in A3SP,
+         * keep such power domain on if "no_console_suspend" is set.
+         */
+        return console_suspend_enabled ? 0 : -EBUSY;
+}
+
+struct rmobile_pm_domain r8a7740_pd_a3sp = {
+        .genpd.name     = "A3SP",
+        .bit_shift      = 11,
+        .gov            = &pm_domain_always_on_gov,
+        .no_debug       = true,
+        .suspend        = r8a7740_pd_a3sp_suspend,
+};
+
+struct rmobile_pm_domain r8a7740_pd_a4lc = {
+        .genpd.name     = "A4LC",
+        .bit_shift      = 1,
+};
+
+#endif /* CONFIG_PM */