[ARM/tegra] suspend: add suspend to LP2

implement basic support for system suspend operations using LP2 (CPU
power-gating)

platform-specific data (power good times, PMU capabilities, etc.) must be
specified when registering the suspend operations, and a helper function
for mapping from wakeup pad and PMU property data from the ODM kit to
the platform_data structure is provided.

AVP & RM suspend is performed in the prepare_late callback, ensuring that
these operations are executed after all drivers have suspended, to eliminate
ordering conflicts on RM dependencies

since all device interrupts (except timers) are disabled in the suspend
path, the wakeup interrupts need to be manually unmasked before entering
into a suspend state or the processor will never wake up; these forced-unmask
interrupts are re-masked immediately in the resume path to prevent the
kernel from live-locking prior to driver resume.

Change-Id: Ibe4d594d450b253744d803a0a15d66ae275029e8

1 files changed, 0 insertions, 1 deletions

diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c
index 4287b26ba569..96d7091dea43 100644
--- a/arch/arm/mach-tegra/common.c
+++ b/arch/arm/mach-tegra/common.c
@@ -65,7 +65,6 @@ void __init tegra_common_init(void)
 	nvmap_add_carveout_heap(TEGRA_IRAM_BASE, TEGRA_IRAM_SIZE,
 				"iram", NVMEM_HEAP_CARVEOUT_IRAM);
 	tegra_init_clock();
-	tegra_init_suspend();
 	tegra_init_cache();
 	tegra_dma_init();
 	arm_pm_restart = tegra_machine_restart;