Let's provide an overridable default instead of having every machine
class define __virt_to_bus and __bus_to_virt to the same thing.  What
most platforms are using is bus_addr == phys_addr so such is the default.

One exception is ebsa110 which has no DMA what so ever, so the actual
definition is not important except only for proper compilation.  Also
added a comment about the special footbridge bus translation.

Let's also remove comments alluding to set_dma_addr which is not
(and should not) be commonly used.
Signed-off-by: NNicolas Pitre <nico@marvell.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

The baseband cpu owns the pmic, so voltage regulator control is only
available via a relatively limited interface through the proc_comm
transport.
Signed-off-by: NBrian Swetland <swetland@google.com>

San:
- Propagate DM errors to the originator of the request.
- Implement msm_dmov_stop_cmd()
- Add return value to init code
- Modify msm_dmov_stop_cmd() to support ungraceful flushing

Arve:
- Disable datamover interrupt when not in use.
  We turn off the interrrupt to allow power collapse from idle.
Signed-off-by: NSan Mehat <san@android.com>
Signed-off-by: NArve Hjønnevåg <arve@android.com>
Signed-off-by: NBrian Swetland <swetland@google.com>

Makes use of the proc_comm interface to provide clock control on
MSM7X01A family SoCs.
Signed-off-by: NBrian Swetland <swetland@google.com>

- Add some more peripherals (sdcc, etc) to the iomap.
- Remove virtual base addresses for devices that we should be passing
  physical addresses to drivers via resources and ioremap()ing.
- don't try to use uarts for ll debug once the mmu is enabled due to
  problems with the peripheral window
- make base addresses void __iomem * and fixup irq.c and timer.c
- Remove common.c and bring in devices.c/devices.h similar to
  the PXA architecture.
Signed-off-by: NBrian Swetland <swetland@google.com>

This just leaves include/asm-arm/plat-* to deal with.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>