[aml] Add IR810 poweroff driver to drivers/amlogic/power/Kconfig
[aml] drivers/amlogic/power Allow IR810 driver to be included with ref16 board (TLBB)
Fix: Various compiler warnings in arch/arm/kernel/setup.c.
[amk] drivers/amlogic/i2c/aml_i2c.c Fix some compile warnings.
[amk] arch/arm/mach-meson3/gpio.c Fix compiler warning, unused var.
[aml] drivers/amlogic/input/saradc/saradc.c Try to get CPU temp. But get high value back\!
[hid] Make use of the new USB delay quirk
USB might miss packets, so set to 40ms USB HID idle rate
[aml] Make ethernet clock to be used configurable
[aml] Removed Powerled Control in AML GPIO Driver.
[aml] Add CEC kernel support

[f16ref] (old)Initial start of CEC kernel support
[f16ref] Turn off CEC Debug messages
Update drivers/amlogic/hdmi/hdmi_tx/hdmi_cec_key.c
[cec] Map the "Exit" key to BACK_SPACE (Up one level in XBMC) instead of escape (Return to the home screen in XBMC).
Add BFQ

[PATCH 1/3] block: prepare I/O context code for BFQ

BFQ uses struct cfq_io_context to store its per-process per-device data,
reusing the same code for cic handling of CFQ.  The code is not shared
ATM to minimize the impact of these patches.

This patch introduces a new hlist to each io_context to store all the
cic's allocated by BFQ to allow calling the right destructor on module
unload; the radix tree used for cic lookup needs to be duplicated
because it can contain dead keys inserted by a scheduler and later
retrieved by the other one.

Update the io_context exit and free paths to take care also of
the BFQ cic's.

Change the type of cfqq inside struct cfq_io_context to void *
to use it also for BFQ per-queue data.

A new bfq-specific ioprio_changed field is necessary, too, to avoid
clobbering cfq's one, so switch ioprio_changed to a bitmap, with one
element per scheduler.

[PATCH 2/3] block: add cgroups, kconfig and build bits for BFQ

Add a Kconfig option and do the related Makefile changes to compile
the BFQ I/O scheduler.  Also let the cgroups subsystem know about the
BFQ I/O controller.

[PATCH 3/3] block: introduce the BFQ I/O scheduler

Add the BFQ I/O scheduler.  The general structure is borrowed from CFQ,
as much of the code.  A (bfq_)queue is associated to each task doing I/O
on a device, and each time a scheduling decision has to be taken a queue
is selected and it is served until it expires.

The main differences are:
     - slices are given in the service domain: tasks are assigned budgets,
       measured in number of sectors. Once got the disk, a task must
       however consume its assigned budget within a configurable maximum time
       (by default, the maximum possible value of the budgets is automaticall
       computed to comply with this timeout). This allows the desired latency
       vs "throughput boosting" tradeoff to be set.

    - Budgets are scheduled according to a variant of WF2Q+, implemented
      using an augmented rb-tree to take eligibility into account while
      preserving an O(log N) overall complexity.

    - BFQ supports full hierarchical scheduling, exporting a cgroups
      interface.  Each node has a full scheduler, so each group can
      be assigned its own ioprio and an ioprio_class.

    - If the cgroups interface is used, weights can be explictly assigned,
      otherwise ioprio values are mapped to weights using the relation
      weight = IOPRIO_BE_NR - ioprio.

    - ioprio classes are served in strict priority order, i.e., lower
      priority queues are not served as long as there are higher priority
      queues.  Among queues in the same classes the bandwidth is distributed
      in proportion to the weights of each queue.

Regarding what has not changed it is worth noting:
    - the handling of cfq_io_contexts to associate queues to tasks.
      Much
      of the code has been reused just renaming it.  (There is room for
      code sharing with CFQ but we wanted to minimize the impact of this
      patch.)

    - The handling of async queues.

    - The handling of idle windows.

    - The handling of merging.

    - The heuristics to assert that a task is worth an idle window (with
      minor modifications to hw_tag/CIC_SEEKY detection).
[aml] No SD write/protect check
[aml] Add No WP check pin to cardreader
Apply Linux 2.6.34.14 patch
 ARM: 7668/1: fix memset-related crashes caused by recent GCC (4.7.2) …

…optimizations

Recent GCC versions (e.g. GCC-4.7.2) perform optimizations based on
assumptions about the implementation of memset and similar functions.
The current ARM optimized memset code does not return the value of
its first argument, as is usually expected from standard implementations.

For instance in the following function:

void debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter)
{
	memset(waiter, MUTEX_DEBUG_INIT, sizeof(*waiter));
	waiter->magic = waiter;
	INIT_LIST_HEAD(&waiter->list);
}

compiled as:

800554d0 <debug_mutex_lock_common>:
800554d0:       e92d4008        push    {r3, lr}
800554d4:       e1a00001        mov     r0, r1
800554d8:       e3a02010        mov     r2, #16 ; 0x10
800554dc:       e3a01011        mov     r1, #17 ; 0x11
800554e0:       eb04426e        bl      80165ea0 <memset>
800554e4:       e1a03000        mov     r3, r0
800554e8:       e583000c        str     r0, [r3, #12]
800554ec:       e5830000        str     r0, [r3]
800554f0:       e5830004        str     r0, [r3, #4]
800554f4:       e8bd8008        pop     {r3, pc}

GCC assumes memset returns the value of pointer 'waiter' in register r0; causing
register/memory corruptions.

This patch fixes the return value of the assembly version of memset.
It adds a 'mov' instruction and merges an additional load+store into
existing load/store instructions.
For ease of review, here is a breakdown of the patch into 4 simple steps:

Step 1
======
Perform the following substitutions:
ip -> r8, then
r0 -> ip,
and insert 'mov ip, r0' as the first statement of the function.
At this point, we have a memset() implementation returning the proper result,
but corrupting r8 on some paths (the ones that were using ip).

Step 2
======
Make sure r8 is saved and restored when (! CALGN(1)+0) == 1:

save r8:
-       str     lr, [sp, #-4]!
+       stmfd   sp!, {r8, lr}

and restore r8 on both exit paths:
-       ldmeqfd sp!, {pc}               @ Now <64 bytes to go.
+       ldmeqfd sp!, {r8, pc}           @ Now <64 bytes to go.
(...)
        tst     r2, #16
        stmneia ip!, {r1, r3, r8, lr}
-       ldr     lr, [sp], #4
+       ldmfd   sp!, {r8, lr}

Step 3
======
Make sure r8 is saved and restored when (! CALGN(1)+0) == 0:

save r8:
-       stmfd   sp!, {r4-r7, lr}
+       stmfd   sp!, {r4-r8, lr}

and restore r8 on both exit paths:
        bgt     3b
-       ldmeqfd sp!, {r4-r7, pc}
+       ldmeqfd sp!, {r4-r8, pc}
(...)
        tst     r2, #16
        stmneia ip!, {r4-r7}
-       ldmfd   sp!, {r4-r7, lr}
+       ldmfd   sp!, {r4-r8, lr}

Step 4
======
Rewrite register list "r4-r7, r8" as "r4-r8".

Signed-off-by: Ivan Djelic <ivan.djelic@parrot.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 ARM: 7670/1: fix the memset fix

Commit 455bd4c430b0 ("ARM: 7668/1: fix memset-related crashes caused by
recent GCC (4.7.2) optimizations") attempted to fix a compliance issue
with the memset return value.  However the memset itself became broken
by that patch for misaligned pointers.

This fixes the above by branching over the entry code from the
misaligned fixup code to avoid reloading the original pointer.

Also, because the function entry alignment is wrong in the Thumb mode
compilation, that fixup code is moved to the end.

While at it, the entry instructions are slightly reworked to help dual
issue pipelines.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Alexander Holler <holler@ahsoftware.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[media/uvc] Fix compiling issues, revert some files
New unaligned access support in GCC was triggering an alignment fault at boot
The Brain Fuck Scheduler v0.318 by Con Kolivas.

A single shared runqueue O(n) strict fairness earliest deadline first design.

Ultra low latency and excellent desktop performance for 1 to many CPUs.
Not recommended for 4096 cpus.

Scalability is optimal when your workload is equal to the number of CPUs on
bfs. ie you should ONLY do make -j4 on quad core, -j2 on dual core and so on.

Features SCHED_IDLEPRIO and SCHED_ISO scheduling policies as well.
You do NOT need to use these policies for good performance, they are purely
optional for even better performance in extreme conditions.

To run something idleprio, use schedtool like so:

schedtool -D -e make -j4

To run something isoprio, use schedtool like so:

schedtool -I -e amarok

Includes accurate sub-tick accounting of tasks so userspace reported
cpu usage may be very different if you have very short lived tasks.
BFS Patch [1/10]: Add above_background_load function to allow stuff to happen only when
important stuff aint.