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b4f173752a
linux/arch/arm/mach-tegra
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Stephen Warren b4f173752a ARM: tegra: disable LP2 cpuidle state if PCIe is enabled 
Tegra20 HW appears to have a bug such that PCIe device interrupts,
whether they are legacy IRQs or MSI, are lost when LP2 is enabled. To
work around this, simply disable LP2 if any PCIe devices with interrupts
are present. Detect this via the IRQ domain map operation. This is
slightly over-conservative; if a device with an interrupt is present but
the driver does not actually use them, LP2 will still be disabled.
However, this is a reasonable trade-off which enables a simpler
workaround.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
2013-08-13 12:07:56 -06:00
..
apbio.c ARM: tegra: Make variables static 2013-01-28 10:21:28 -07:00
apbio.h ARM: tegra: apbio access using dma for tegra20 only 2012-07-06 11:48:56 -06:00
board-paz00.c Merge branch 'multiplatform/platform-data' into next/multiplatform 2012-09-22 01:07:21 -07:00
board-paz00.h ARM: tegra: remove board (but not DT) support for Paz00 2012-09-14 11:31:36 -06:00
board.h PCI: tegra: Move PCIe driver to drivers/pci/host 2013-08-13 12:07:45 -06:00
common.c reboot: arm: change reboot_mode to use enum reboot_mode 2013-07-09 10:33:29 -07:00
common.h Revert "ARM: tegra: add cpu_disable for hotplug" 2013-07-19 10:00:37 -06:00
cpuidle-tegra20.c ARM: tegra: disable LP2 cpuidle state if PCIe is enabled 2013-08-13 12:07:56 -06:00
cpuidle-tegra30.c ARM: tegra: don't pass CPU ID to tegra_{set,clear}_cpu_in_lp2 2013-06-05 11:44:58 -06:00
cpuidle-tegra114.c ARM: tegra114: cpuidle: add powered-down state 2013-07-19 10:07:14 -06:00
cpuidle.c ARM: tegra: disable LP2 cpuidle state if PCIe is enabled 2013-08-13 12:07:56 -06:00
cpuidle.h ARM: tegra: disable LP2 cpuidle state if PCIe is enabled 2013-08-13 12:07:56 -06:00
flowctrl.c ARM: tegra: flowctrl: add support for cpu_suspend_enter/exit 2013-07-19 10:08:08 -06:00
flowctrl.h ARM: tegra: shut off the CPU rail when the last CPU in suspend 2013-07-19 10:08:07 -06:00
fuse.c ARM: tegra: add speedo-based process id for Tegra114 2013-03-19 11:52:06 -06:00
fuse.h ARM: tegra: add an assembly marco to check Tegra SoC ID 2013-05-22 15:19:21 -06:00
gpio-names.h
headsmp.S ARM: tegra: do v7_invalidate_l1 only when CPU is Cortex-A9 2013-07-19 10:08:04 -06:00
hotplug.c ARM: tegra: add a flag for tegra_disable_clean_inv_dcache to do LoUIS or ALL 2013-07-19 10:08:05 -06:00
io.c ARM: tegra: don't include iomap.h from debug-macro.S 2012-11-16 12:22:17 -07:00
iomap.h PCI: tegra: Move PCIe driver to drivers/pci/host 2013-08-13 12:07:45 -06:00
irammap.h ARM: tegra: decouple uncompress.h and debug-macro.S 2012-11-16 12:22:17 -07:00
irq.c ARM: tegra114: Reprogram GIC CPU interface to bypass IRQ on CPU PM entry 2013-07-19 10:07:14 -06:00
irq.h ARM: tegra: irq: add wake up handling 2013-04-03 14:31:32 -06:00
Kconfig PCI: tegra: Move PCIe driver to drivers/pci/host 2013-08-13 12:07:45 -06:00
Makefile PCI: tegra: Move PCIe driver to drivers/pci/host 2013-08-13 12:07:45 -06:00
platsmp.c Revert "ARM: tegra: add cpu_disable for hotplug" 2013-07-19 10:00:37 -06:00
pm-tegra20.c ARM: tegra: add LP1 suspend support for Tegra20 2013-08-12 13:30:11 -06:00
pm-tegra30.c ARM: tegra: add LP1 suspend support for Tegra30 2013-08-12 13:30:11 -06:00
pm.c ARM: tegra: add LP1 suspend support for Tegra114 2013-08-12 13:30:12 -06:00
pm.h ARM: tegra: add LP1 suspend support for Tegra20 2013-08-12 13:30:11 -06:00
pmc.c ARM: tegra: add common LP1 suspend support 2013-08-12 13:29:24 -06:00
pmc.h ARM: tegra: add common LP1 suspend support 2013-08-12 13:29:24 -06:00
powergate.c ARM: arm-soc multiplatform updates for 3.10 2013-05-02 09:38:16 -07:00
reset-handler.S ARM: tegra: add common resume handling code for LP1 resuming 2013-08-12 12:22:38 -06:00
reset.c ARM: tegra: add common resume handling code for LP1 resuming 2013-08-12 12:22:38 -06:00
reset.h ARM: tegra: add common LP1 suspend support 2013-08-12 13:29:24 -06:00
sleep-tegra20.S ARM: tegra: add LP1 suspend support for Tegra20 2013-08-12 13:30:11 -06:00
sleep-tegra30.S ARM: tegra: add LP1 suspend support for Tegra114 2013-08-12 13:30:12 -06:00
sleep.h ARM: tegra: add LP1 suspend support for Tegra30 2013-08-12 13:30:11 -06:00
sleep.S ARM: tegra: add LP1 suspend support for Tegra30 2013-08-12 13:30:11 -06:00
tegra2_emc.c ARM: tegra: core SoC support enhancements 2013-06-14 18:11:31 -07:00
tegra2_emc.h ARM: tegra: emc: convert tegra2_emc to a platform driver 2012-02-06 18:24:59 -08:00
tegra20_speedo.c ARM: tegra: Add speedo-based process identification 2012-11-15 14:34:20 -07:00
tegra30_speedo.c ARM: tegra: Tegra30 speedo-based process identification 2012-11-15 14:36:59 -07:00
tegra114_speedo.c ARM: tegra: add speedo-based process id for Tegra114 2013-03-19 11:52:06 -06:00
tegra.c PCI: tegra: Move PCIe driver to drivers/pci/host 2013-08-13 12:07:45 -06:00