include/linux/clk/tegra.h

Source file repositories/reference/linux-study-clean/include/linux/clk/tegra.h

File Facts

System
Linux kernel
Corpus path
include/linux/clk/tegra.h
Extension
.h
Size
6365 bytes
Lines
264
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct tegra_cpu_car_ops {
	void (*wait_for_reset)(u32 cpu);
	void (*put_in_reset)(u32 cpu);
	void (*out_of_reset)(u32 cpu);
	void (*enable_clock)(u32 cpu);
	void (*disable_clock)(u32 cpu);
#ifdef CONFIG_PM_SLEEP
	bool (*rail_off_ready)(void);
	void (*suspend)(void);
	void (*resume)(void);
#endif
};

#ifdef CONFIG_ARCH_TEGRA
extern struct tegra_cpu_car_ops *tegra_cpu_car_ops;

static inline void tegra_wait_cpu_in_reset(u32 cpu)
{
	if (WARN_ON(!tegra_cpu_car_ops->wait_for_reset))
		return;

	tegra_cpu_car_ops->wait_for_reset(cpu);
}

static inline void tegra_put_cpu_in_reset(u32 cpu)
{
	if (WARN_ON(!tegra_cpu_car_ops->put_in_reset))
		return;

	tegra_cpu_car_ops->put_in_reset(cpu);
}

static inline void tegra_cpu_out_of_reset(u32 cpu)
{
	if (WARN_ON(!tegra_cpu_car_ops->out_of_reset))
		return;

	tegra_cpu_car_ops->out_of_reset(cpu);
}

static inline void tegra_enable_cpu_clock(u32 cpu)
{
	if (WARN_ON(!tegra_cpu_car_ops->enable_clock))
		return;

	tegra_cpu_car_ops->enable_clock(cpu);
}

static inline void tegra_disable_cpu_clock(u32 cpu)
{
	if (WARN_ON(!tegra_cpu_car_ops->disable_clock))
		return;

	tegra_cpu_car_ops->disable_clock(cpu);
}
#else
static inline void tegra_wait_cpu_in_reset(u32 cpu)
{
}

static inline void tegra_put_cpu_in_reset(u32 cpu)
{
}

static inline void tegra_cpu_out_of_reset(u32 cpu)
{
}

static inline void tegra_enable_cpu_clock(u32 cpu)
{
}

static inline void tegra_disable_cpu_clock(u32 cpu)
{
}
#endif

#if defined(CONFIG_ARCH_TEGRA) && defined(CONFIG_PM_SLEEP)
static inline bool tegra_cpu_rail_off_ready(void)
{
	if (WARN_ON(!tegra_cpu_car_ops->rail_off_ready))
		return false;

	return tegra_cpu_car_ops->rail_off_ready();
}

static inline void tegra_cpu_clock_suspend(void)
{
	if (WARN_ON(!tegra_cpu_car_ops->suspend))
		return;

Annotation

Implementation Notes