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1eb2ecf1d5
linux/arch/arm/mach-tegra
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Colin Cross 1eb2ecf1d5 ARM: tegra: cpufreq: Disable cpufreq during suspend 
On Tegra, calling clk_set_rate on the CPU clock may call into the
regulator API.  If the regulator driver that controls the CPU
voltage rail has been suspended, this can lead to attempted
communication with a hardware block that has already been turned
off.

Adds a SUSPEND_PREPARE notification hook to drop the frequency to
the lowest possible during suspend.

Also adds 216MHz (off of PLLP) as the lowest CPU frequency, which
allows PLLX to be turned off.

Signed-off-by: Colin Cross <ccross@android.com>
2011-02-10 17:50:40 -08:00
..
include/mach ARM: tegra: iomap: Add missing devices 2011-02-10 17:50:23 -08:00
board-harmony-pcie.c tegra: harmony: enable PCI Express 2010-10-21 18:13:10 -07:00
board-harmony-pinmux.c [ARM] tegra: harmony: Add harmony board file 2010-08-05 14:57:02 -07:00
board-harmony.c arm: remove machine_desc.io_pg_offst and .phys_io 2010-10-20 00:27:46 -04:00
board-harmony.h [ARM] tegra: harmony: Add harmony board file 2010-08-05 14:57:02 -07:00
board.h tegra: add PCI Express support 2010-10-21 18:13:02 -07:00
clock.c ARM: 6483/1: arm & sh: factorised duplicated clkdev.c 2010-11-26 10:51:04 +00:00
clock.h ARM: 6483/1: arm & sh: factorised duplicated clkdev.c 2010-11-26 10:51:04 +00:00
common.c [ARM] tegra: Add APB DMA support 2010-10-21 18:12:35 -07:00
cpu-tegra.c ARM: tegra: cpufreq: Disable cpufreq during suspend 2011-02-10 17:50:40 -08:00
dma.c ARM: tegra: Add prototypes for subsystem suspend functions 2011-02-09 21:57:01 -08:00
fuse.c [ARM] tegra: Add support for reading fuses 2010-10-21 18:12:09 -07:00
fuse.h [ARM] tegra: Add support for reading fuses 2010-10-21 18:12:09 -07:00
gpio-names.h [ARM] tegra: add GPIO support 2010-08-05 14:57:02 -07:00
gpio.c ARM: tegra: Add prototypes for subsystem suspend functions 2011-02-09 21:57:01 -08:00
headsmp.S [ARM] tegra: SMP support 2010-08-05 14:57:01 -07:00
hotplug.c ARM: fix wrongly patched constants 2011-01-14 12:06:26 +00:00
io.c [ARM] tegra: update iomap 2010-10-21 18:11:24 -07:00
irq.c ARM: tegra: irq: Implement retrigger 2011-02-09 22:18:30 -08:00
Kconfig tegra: add PCI Express support 2010-10-21 18:13:02 -07:00
legacy_irq.c ARM: tegra: irq: Add support for suspend wake sources 2011-02-09 22:18:21 -08:00
localtimer.c [ARM] tegra: SMP support 2010-08-05 14:57:01 -07:00
Makefile ARM: tegra: Add api to control internal powergating 2011-02-09 21:57:00 -08:00
Makefile.boot [ARM] tegra: initial tegra support 2010-08-05 14:51:42 -07:00
pcie.c tegra: add PCI Express support 2010-10-21 18:13:02 -07:00
pinmux-t2-tables.c ARM: tegra: pinmux: Add missing drive pingroups and fix suspend 2011-02-09 21:57:02 -08:00
pinmux.c [ARM] tegra: pinmux: add safe values, move tegra2, add suspend 2010-10-21 18:11:41 -07:00
platsmp.c Merge branch 'misc' into devel 2011-01-06 22:32:52 +00:00
powergate.c ARM: tegra: Add api to control internal powergating 2011-02-09 21:57:00 -08:00
tegra2_clocks.c ARM: tegra: clock: Suspend fixes, and add new clocks 2011-02-09 21:57:02 -08:00
tegra2_dvfs.c [ARM] tegra: clock: Add dvfs support, bug fixes, and cleanups 2010-10-21 18:12:19 -07:00
tegra2_dvfs.h [ARM] tegra: clock: Add dvfs support, bug fixes, and cleanups 2010-10-21 18:12:19 -07:00
timer.c ARM: tegra: timer: Add idle and suspend support to timers 2011-02-09 22:17:38 -08:00