linux.git/arch/powerpc/sysdev/qe_lib, branch v2.6.33

powerpc: Make "intspec" pointers in irq_host->xlate() const

2009-12-09T06:10:37+00:00

Writing a driver using SCLPC on the MPC5200B I detected, that the
intspec arrays to map irqs to Linux virq cannot be const, because the
mapping and xlate functions only take non const pointers. All those
functions do not modify the intspec, so a const pointer could be used.

Signed-off-by: Roman Fietze 
Signed-off-by: Benjamin Herrenschmidt

powerpc: Fixup last users of irq_chip->typename

2009-11-24T03:32:45+00:00

The typename member of struct irq_chip was kept for migration purposes
and is obsolete since more than 2 years. Fix up the leftovers.

Signed-off-by: Thomas Gleixner 
Cc: Benjamin Herrenschmidt 
Cc: linuxppc-dev@ozlabs.org
Acked-by: Geoff Levand 
Signed-off-by: Benjamin Herrenschmidt

powerpc/qe: Implement QE driver for handling resume on MPC85xx

2009-11-12T03:43:27+00:00

So far the driver is used to reset QE upon resume, which is needed on
85xx. Later we can move some QE initialization steps into probe().

Signed-off-by: Anton Vorontsov 
Signed-off-by: Kumar Gala

powerpc/qe: QE also shuts down on MPC8568

2009-11-12T03:43:15+00:00

It appears that QE shuts down on all MPC85xx CPUs (i.e. MPC8568 and
MPC8569) and thus needs reset upon resume.

So modify qe_alive_during_sleep() to account that.

Signed-off-by: Anton Vorontsov 
Signed-off-by: Kumar Gala

powerpc/qe: Make qe_reset() code path safe for repeated invocation

2009-11-12T03:43:13+00:00

For MPC8569 CPUs we'll need to reset QE after each suspend, so make
qe_reset() code path suitable for repeated invocation, that is:

- Don't initialize rheap structures if already initialized;
- Don't allocate muram for SDMA if already allocated, just reinitialize
  registers with previously allocated muram offset;
- Remove __init attributes from qe_reset() and cpm_muram_init();

Signed-off-by: Anton Vorontsov 
Signed-off-by: Kumar Gala

powerpc/qe: Increase MAX_QE_RISC to 4

2009-11-12T03:43:09+00:00

MPC8569 CPUs have four QE RISCs, so we need to increase MAX_QE_RISC
constant, otherwise qe_upload_firmware() fails at sanity checking.

Signed-off-by: Anton Vorontsov 
Acked-by: Timur Tabi 
Signed-off-by: Kumar Gala

powerpc: Remove get_irq_desc()

2009-10-30T06:20:55+00:00

get_irq_desc() is a powerpc-specific version of irq_to_desc(). That
is reason enough to remove it, but it also doesn't know about sparse
irq_desc support which irq_to_desc() does (when we enable it).

Signed-off-by: Michael Ellerman 
Acked-by: Grant Likely 
Signed-off-by: Benjamin Herrenschmidt

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2009-09-15T16:51:09+00:00

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (134 commits)
  powerpc/nvram: Enable use Generic NVRAM driver for different size chips
  powerpc/iseries: Fix oops reading from /proc/iSeries/mf/*/cmdline
  powerpc/ps3: Workaround for flash memory I/O error
  powerpc/booke: Don't set DABR on 64-bit BookE, use DAC1 instead
  powerpc/perf_counters: Reduce stack usage of power_check_constraints
  powerpc: Fix bug where perf_counters breaks oprofile
  powerpc/85xx: Fix SMP compile error and allow NULL for smp_ops
  powerpc/irq: Improve nanodoc
  powerpc: Fix some late PowerMac G5 with PCIe ATI graphics
  powerpc/fsl-booke: Use HW PTE format if CONFIG_PTE_64BIT
  powerpc/book3e: Add missing page sizes
  powerpc/pseries: Fix to handle slb resize across migration
  powerpc/powermac: Thermal control turns system off too eagerly
  powerpc/pci: Merge ppc32 and ppc64 versions of phb_scan()
  powerpc/405ex: support cuImage via included dtb
  powerpc/405ex: provide necessary fixup function to support cuImage
  powerpc/40x: Add support for the ESTeem 195E (PPC405EP) SBC
  powerpc/44x: Add Eiger AMCC (AppliedMicro) PPC460SX evaluation board support.
  powerpc/44x: Update Arches defconfig
  powerpc/44x: Update Arches dts
  ...

Fix up conflicts in drivers/char/agp/uninorth-agp.c

powerpc/qe: Implement qe_alive_during_sleep() helper function

2009-08-31T04:51:33+00:00

In some CPUs (i.e. MPC8569) QE shuts down completely during sleep,
drivers may want to know that to reinitialize registers and buffer
descriptors.

This patch implements qe_alive_during_sleep() helper function, so far
it just checks if MPC8569-compatible power management controller is
present, which is a sign that QE turns off during sleep.

Signed-off-by: Anton Vorontsov 
Signed-off-by: David S. Miller

powerpc/qe_lib: Set gpio data before changing the direction to output

2009-08-26T02:08:45+00:00

This avoids having a short glitch if the desired initial value is not
the same as what was previously in the data register.

Signed-off-by: Michael Barkowski 
Acked-by: Anton Vorontsov 
Signed-off-by: Kumar Gala