[PATCH v3 05/13] ARM: tegra: Expose PM functions required for new cpuidle driver

Dmitry Osipenko
2019-07-15T17:30:03Z

The upcoming unified CPUIDLE driver will be added to the drivers/cpuidle/
directory and it will require all these exposed Tegra PM-core functions.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
arch/arm/mach-tegra/irq.c | 2 ++
arch/arm/mach-tegra/pm.h | 3 ---
arch/arm/mach-tegra/sleep.h | 1 -
include/soc/tegra/irq.h | 13 +++++++++++++
include/soc/tegra/pm.h | 25 +++++++++++++++++++++++++
5 files changed, 40 insertions(+), 4 deletions(-)
create mode 100644 include/soc/tegra/irq.h

diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c
index 4c065b54cbe7..4e1ee70b2a3f 100644
--- a/arch/arm/mach-tegra/irq.c
+++ b/arch/arm/mach-tegra/irq.c
@@ -18,6 +18,8 @@
#include <linux/of.h>
#include <linux/syscore_ops.h>

+#include <soc/tegra/irq.h>
+
#include "board.h"
#include "iomap.h"

diff --git a/arch/arm/mach-tegra/pm.h b/arch/arm/mach-tegra/pm.h
index ae68fc7db576..81525f5f4a44 100644
--- a/arch/arm/mach-tegra/pm.h
+++ b/arch/arm/mach-tegra/pm.h
@@ -23,9 +23,6 @@ void tegra20_sleep_core_init(void);
void tegra30_lp1_iram_hook(void);
void tegra30_sleep_core_init(void);

-void tegra_clear_cpu_in_lp2(void);
-void tegra_set_cpu_in_lp2(void);
-int tegra_idle_lp2_last(void);
extern void (*tegra_tear_down_cpu)(void);

#ifdef CONFIG_PM_SLEEP
diff --git a/arch/arm/mach-tegra/sleep.h b/arch/arm/mach-tegra/sleep.h
index 4978def9db46..4718a3cb45a1 100644
--- a/arch/arm/mach-tegra/sleep.h
+++ b/arch/arm/mach-tegra/sleep.h
@@ -122,7 +122,6 @@ void tegra20_hotplug_shutdown(void);
void tegra30_hotplug_shutdown(void);

void tegra20_tear_down_cpu(void);
-int tegra30_sleep_cpu_secondary_finish(unsigned long);
void tegra30_tear_down_cpu(void);

#endif
diff --git a/include/soc/tegra/irq.h b/include/soc/tegra/irq.h
new file mode 100644
index 000000000000..8eb11a7109e4
--- /dev/null
+++ b/include/soc/tegra/irq.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2012, NVIDIA Corporation. All rights reserved.
+ */
+
+#ifndef __SOC_TEGRA_IRQ_H
+#define __SOC_TEGRA_IRQ_H
+
+#if defined(CONFIG_ARM)
+bool tegra_pending_sgi(void);
+#endif
+
+#endif /* __SOC_TEGRA_IRQ_H */
diff --git a/include/soc/tegra/pm.h b/include/soc/tegra/pm.h
index 951fcd738d55..bc1abdf41d61 100644
--- a/include/soc/tegra/pm.h
+++ b/include/soc/tegra/pm.h
@@ -6,6 +6,8 @@
#ifndef __SOC_TEGRA_PM_H__
#define __SOC_TEGRA_PM_H__

+#include <linux/errno.h>
+
enum tegra_suspend_mode {
TEGRA_SUSPEND_NONE = 0,
TEGRA_SUSPEND_LP2, /* CPU voltage off */
@@ -20,6 +22,11 @@ tegra_pm_validate_suspend_mode(enum tegra_suspend_mode mode);

/* low-level resume entry point */
void tegra_resume(void);
+
+int tegra30_sleep_cpu_secondary_finish(unsigned long arg);
+void tegra_clear_cpu_in_lp2(void);
+void tegra_set_cpu_in_lp2(void);
+int tegra_idle_lp2_last(void);
#else
static inline enum tegra_suspend_mode
tegra_pm_validate_suspend_mode(enum tegra_suspend_mode mode)
@@ -30,6 +37,24 @@ tegra_pm_validate_suspend_mode(enum tegra_suspend_mode mode)
static inline void tegra_resume(void)
{
}
+
+static inline int tegra30_sleep_cpu_secondary_finish(unsigned long arg)
+{
+ return -ENOTSUPP;
+}
+
+static inline void tegra_clear_cpu_in_lp2(void)
+{
+}
+
+static inline void tegra_set_cpu_in_lp2(void)
+{
+}
+
+static inline int tegra_idle_lp2_last(void)
+{
+ return -ENOTSUPP;
+}
#endif /* CONFIG_PM_SLEEP */

#endif /* __SOC_TEGRA_PM_H__ */
--
2.22.0