Merge tag 'tegra-for-3.9-soc-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/soc

From Stephen Warren:
ARM: tegra: cpuidle enhancements

This pull request implements a new "LP2" cpuidle state for Tegra20,
which makes use of the couple cpuidle feature.

It is based on (most of) the previous pull request, with tag
tegra-for-3.9-soc-usb.

* tag 'tegra-for-3.9-soc-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
  ARM: tegra20: cpuidle: apply coupled cpuidle for powered-down mode
  ARM: tegra20: flowctrl: add support for cpu_suspend_enter/exit
  clk: tegra20: Implementing CPU low-power function for tegra_cpu_car_ops
  ARM: tegra20: cpuidle: add powered-down state for secondary CPU
  ARM: tegra: add pending SGI checking API

Signed-off-by: Olof Johansson <olof@lixom.net>

1 files changed, 26 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/sleep.h b/arch/arm/mach-tegra/sleep.h
index 56505c381ea8..4ffae541726e 100644
--- a/arch/arm/mach-tegra/sleep.h
+++ b/arch/arm/mach-tegra/sleep.h
@@ -25,6 +25,19 @@
 					+ IO_PPSB_VIRT)
 #define TEGRA_CLK_RESET_VIRT (TEGRA_CLK_RESET_BASE - IO_PPSB_PHYS \
 					+ IO_PPSB_VIRT)
+#define TEGRA_PMC_VIRT	(TEGRA_PMC_BASE - IO_APB_PHYS + IO_APB_VIRT)
+
+/* PMC_SCRATCH37-39 and 41 are used for tegra_pen_lock and idle */
+#define PMC_SCRATCH37	0x130
+#define PMC_SCRATCH38	0x134
+#define PMC_SCRATCH39	0x138
+#define PMC_SCRATCH41	0x140
+
+#ifdef CONFIG_ARCH_TEGRA_2x_SOC
+#define CPU_RESETTABLE		2
+#define CPU_RESETTABLE_SOON	1
+#define CPU_NOT_RESETTABLE	0
+#endif
 
 #ifdef __ASSEMBLY__
 /* returns the offset of the flow controller halt register for a cpu */
@@ -104,6 +117,8 @@ exit_l2_resume:
 .endm
 #endif /* CONFIG_CACHE_L2X0 */
 #else
+void tegra_pen_lock(void);
+void tegra_pen_unlock(void);
 void tegra_resume(void);
 int tegra_sleep_cpu_finish(unsigned long);
 void tegra_disable_clean_inv_dcache(void);
@@ -116,6 +131,17 @@ static inline void tegra20_hotplug_init(void) {}
 static inline void tegra30_hotplug_init(void) {}
 #endif
 
+void tegra20_cpu_shutdown(int cpu);
+int tegra20_cpu_is_resettable_soon(void);
+void tegra20_cpu_clear_resettable(void);
+#ifdef CONFIG_ARCH_TEGRA_2x_SOC
+void tegra20_cpu_set_resettable_soon(void);
+#else
+static inline void tegra20_cpu_set_resettable_soon(void) {}
+#endif
+
+int tegra20_sleep_cpu_secondary_finish(unsigned long);
+void tegra20_tear_down_cpu(void);
 int tegra30_sleep_cpu_secondary_finish(unsigned long);
 void tegra30_tear_down_cpu(void);