From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Thu, 11 Apr 2024 10:27:49 +0200
Subject: Adding upstream version 6.6.15.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 arch/arm/mach-highbank/pm.c | 51 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 arch/arm/mach-highbank/pm.c

(limited to 'arch/arm/mach-highbank/pm.c')

diff --git a/arch/arm/mach-highbank/pm.c b/arch/arm/mach-highbank/pm.c
new file mode 100644
index 0000000000..3fdbdb8311
--- /dev/null
+++ b/arch/arm/mach-highbank/pm.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2011 Calxeda, Inc.
+ */
+
+#include <linux/cpu_pm.h>
+#include <linux/init.h>
+#include <linux/psci.h>
+#include <linux/suspend.h>
+
+#include <asm/suspend.h>
+
+#include <uapi/linux/psci.h>
+
+#include "core.h"
+
+#define HIGHBANK_SUSPEND_PARAM \
+	((0 << PSCI_0_2_POWER_STATE_ID_SHIFT) | \
+	 (1 << PSCI_0_2_POWER_STATE_AFFL_SHIFT) | \
+	 (PSCI_POWER_STATE_TYPE_POWER_DOWN << PSCI_0_2_POWER_STATE_TYPE_SHIFT))
+
+static int highbank_suspend_finish(unsigned long val)
+{
+	return psci_ops.cpu_suspend(HIGHBANK_SUSPEND_PARAM, __pa(cpu_resume));
+}
+
+static int highbank_pm_enter(suspend_state_t state)
+{
+	cpu_pm_enter();
+	cpu_cluster_pm_enter();
+
+	cpu_suspend(0, highbank_suspend_finish);
+
+	cpu_cluster_pm_exit();
+	cpu_pm_exit();
+
+	return 0;
+}
+
+static const struct platform_suspend_ops highbank_pm_ops = {
+	.enter = highbank_pm_enter,
+	.valid = suspend_valid_only_mem,
+};
+
+void __init highbank_pm_init(void)
+{
+	if (!psci_ops.cpu_suspend)
+		return;
+
+	suspend_set_ops(&highbank_pm_ops);
+}
-- 
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