abb-codec: Squashed commit of all ABBamp audio changes

This squashed commit consists of the following commits from cocafe:

abb-codec: ABBamp audio v2.0b
Audio control module for ST-Ericsson AB850x codec

Credit:
Aditya Patange (Adi_Pat@xda)

abb-codec: ABBamp audio v2.1b
ShortCir configuration
Enable HsOscEn
Earpiece Digital Gain
ClassD HighPass Gain
ClassD White Gain

abb-codec: ABBamp audio v2.3b
Add mic2(phone,not HSmic) gain.
Optimize volume tables

Next:
Might add ANC stuff
And HSmic gain

abb-codec: ABBamp audio 2.4
Enable HsPullDown
Disable HsGainFade
Disable HsShortcir

Simple sysfs entry inputs: (enable/disable -> on/off)

abb-codec: optimize anagain3 store
Signed-off-by: cocafe <cocafehj@gmail.com>

abb-codec: Format messages style
I like to make everything neat.

Signed-off-by: cocafe <cocafehj@gmail.com>

abb-codec: Fix typo
Signed-off-by: cocafe <cocafehj@gmail.com>

abb-codec: Adjust MIC booster level +15dB -> +6dB
Too noisy with +15dB.

Signed-off-by: cocafe <cocafehj@gmail.com>

abb-codec: ABBamp 2.4.5
Normally, we use "mute all sound" in system settings to disable all sound.

But the earpiece is also disabled, when a call comes, it will take us several seconds to enable sound in settings.

So I add a interface to disable speaker ONLY.

I think it's for me at least.

What's more, this update edits some messages and fixed some bugs.

Check the previous commits.

Signed-off-by: cocafe <cocafehj@gmail.com>

abb-codec: ABBamp 2.4.6
Fixed code style
Restores HS controls after Mic1 PM down

Signed-off-by: cocafe <cocafehj@gmail.com>
ABBamp: Updates from cocore

Courtesy @cocafe
abb-code/ABBamp: Optimize sysfs interfaces for high level API

As Rox required.

Signed-off-by: cocafe <cocafehj@gmail.com>
snd_usb: Fix sysfs conflicts

<4>[    1.265808] WARNING: at fs/sysfs/dir.c:455 sysfs_add_one+0x90/0xb8()
<4>[    1.265808] sysfs: cannot create duplicate filename '/devices/virtual/switch/usb_audio'
<4>[    1.265808] Modules linked in:
<4>[    1.265869] [<c08e70dc>] (unwind_backtrace+0x0/0x138) from [<c0911e88>] (warn_slowpath_common+0x4c/0x64)
<4>[    1.265869] [<c0911e88>] (warn_slowpath_common+0x4c/0x64) from [<c0911f34>] (warn_slowpath_fmt+0x30/0x40)
<4>[    1.265899] [<c0911f34>] (warn_slowpath_fmt+0x30/0x40) from [<c0a0be5c>] (sysfs_add_one+0x90/0xb8)
<4>[    1.265899] [<c0a0be5c>] (sysfs_add_one+0x90/0xb8) from [<c0a0bee4>] (create_dir+0x60/0xbc)
<4>[    1.265930] [<c0a0bee4>] (create_dir+0x60/0xbc) from [<c0a0bff0>] (sysfs_create_dir+0x84/0xf0)
<4>[    1.265930] [<c0a0bff0>] (sysfs_create_dir+0x84/0xf0) from [<c0ac2ff0>] (kobject_add_internal+0xb0/0x218)
<4>[    1.265960] [<c0ac2ff0>] (kobject_add_internal+0xb0/0x218) from [<c0ac3470>] (kobject_add+0x4c/0x94)
<4>[    1.265991] [<c0ac3470>] (kobject_add+0x4c/0x94) from [<c0b5af5c>] (device_add+0x94/0x54c)
<4>[    1.265991] [<c0b5af5c>] (device_add+0x94/0x54c) from [<c0b5b4d0>] (device_create_vargs+0xa4/0xd4)
<4>[    1.266021] [<c0b5b4d0>] (device_create_vargs+0xa4/0xd4) from [<c0b5b520>] (device_create+0x20/0x28)
<4>[    1.266021] [<c0b5b520>] (device_create+0x20/0x28) from [<c0c63108>] (switch_dev_register+0x5c/0xfc)
<4>[    1.266052] [<c0c63108>] (switch_dev_register+0x5c/0xfc) from [<c002b770>] (snd_usb_audio_init+0x3c/0x64)
<4>[    1.266082] [<c002b770>] (snd_usb_audio_init+0x3c/0x64) from [<c08da6b4>] (do_one_initcall+0x38/0x178)
<4>[    1.266082] [<c08da6b4>] (do_one_initcall+0x38/0x178) from [<c00089ac>] (kernel_init+0x90/0x13c)
<4>[    1.266113] [<c00089ac>] (kernel_init+0x90/0x13c) from [<c08e1990>] (kernel_thread_exit+0x0/0x8)
<4>[    1.266143] Board Information: UX500: 0E, cpu U8500 ES178
<4>[    1.266174] ---[ end trace 189fe1a0ae07c69e ]---
<3>[    1.266174] kobject_add_internal failed for usb_audio with -EEXIST, don't try to register things with the same name in the same directory.
<4>[    1.266204] [<c08e70dc>] (unwind_backtrace+0x0/0x138) from [<c0ac3088>] (kobject_add_internal+0x148/0x218)
<4>[    1.266204] [<c0ac3088>] (kobject_add_internal+0x148/0x218) from [<c0ac3470>] (kobject_add+0x4c/0x94)
<4>[    1.266235] [<c0ac3470>] (kobject_add+0x4c/0x94) from [<c0b5af5c>] (device_add+0x94/0x54c)
<4>[    1.266235] [<c0b5af5c>] (device_add+0x94/0x54c) from [<c0b5b4d0>] (device_create_vargs+0xa4/0xd4)
<4>[    1.266265] [<c0b5b4d0>] (device_create_vargs+0xa4/0xd4) from [<c0b5b520>] (device_create+0x20/0x28)
<4>[    1.266265] [<c0b5b520>] (device_create+0x20/0x28) from [<c0c63108>] (switch_dev_register+0x5c/0xfc)
<4>[    1.266296] [<c0c63108>] (switch_dev_register+0x5c/0xfc) from [<c002b770>] (snd_usb_audio_init+0x3c/0x64)
<4>[    1.266296] [<c002b770>] (snd_usb_audio_init+0x3c/0x64) from [<c08da6b4>] (do_one_initcall+0x38/0x178)
<4>[    1.266326] [<c08da6b4>] (do_one_initcall+0x38/0x178) from [<c00089ac>] (kernel_init+0x90/0x13c)
<4>[    1.266357] [<c00089ac>] (kernel_init+0x90/0x13c) from [<c08e1990>] (kernel_thread_exit+0x0/0x8)
<6>[    1.266632] usbcore: registered new interface driver snd-usb-audio

Conflicts:

	arch/arm/mach-ux500/android_switch.c

	/* Android switch interface */
	ux500_android_switch.name = "usb_audio";

	ret = switch_dev_register(&ux500_android_switch);

Signed-off-by: cocafe <cocafehj@gmail.com>
snd_usb: Correct device name

<6>[    1.299804] usbcore: registered new interface driver snd-usb-audio
decompressor: add LZ4 decompressor module

Add support for LZ4 decompression in the Linux Kernel.  LZ4 Decompression
APIs for kernel are based on LZ4 implementation by Yann Collet.

Benchmark Results(PATCH v3)
Compiler: Linaro ARM gcc 4.6.2

1. ARMv7, 1.5GHz based board
   Kernel: linux 3.4
   Uncompressed Kernel Size: 14MB
        Compressed Size  Decompression Speed
   LZO  6.7MB            20.1MB/s, 25.2MB/s(UA)
   LZ4  7.3MB            29.1MB/s, 45.6MB/s(UA)

2. ARMv7, 1.7GHz based board
   Kernel: linux 3.7
   Uncompressed Kernel Size: 14MB
        Compressed Size  Decompression Speed
   LZO  6.0MB            34.1MB/s, 52.2MB/s(UA)
   LZ4  6.5MB            86.7MB/s
- UA: Unaligned memory Access support
- Latest patch set for LZO applied

This patch set is for adding support for LZ4-compressed Kernel.  LZ4 is a
very fast lossless compression algorithm and it also features an extremely
fast decoder [1].

But we have five of decompressors already and one question which does
arise, however, is that of where do we stop adding new ones?  This issue
had been discussed and came to the conclusion [2].

Russell King said that we should have:

 - one decompressor which is the fastest
 - one decompressor for the highest compression ratio
 - one popular decompressor (eg conventional gzip)

If we have a replacement one for one of these, then it should do exactly
that: replace it.

The benchmark shows that an 8% increase in image size vs a 66% increase
in decompression speed compared to LZO(which has been known as the
fastest decompressor in the Kernel).  Therefore the "fast but may not be
small" compression title has clearly been taken by LZ4 [3].

[1] http://code.google.com/p/lz4/
[2] http://thread.gmane.org/gmane.linux.kbuild.devel/9157
[3] http://thread.gmane.org/gmane.linux.kbuild.devel/9347

LZ4 homepage: http://fastcompression.blogspot.com/p/lz4.html
LZ4 source repository: http://code.google.com/p/lz4/

Signed-off-by: Kyungsik Lee <kyungsik.lee@lge.com>
Signed-off-by: Yann Collet <yann.collet.73@gmail.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
lib: add support for LZ4-compressed kernel

Add support for extracting LZ4-compressed kernel images, as well as
LZ4-compressed ramdisk images in the kernel boot process.

Signed-off-by: Kyungsik Lee <kyungsik.lee@lge.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Yann Collet <yann.collet.73@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
lib: add lz4 compressor module

This patchset is for supporting LZ4 compression and the crypto API using
it.

As shown below, the size of data is a little bit bigger but compressing
speed is faster under the enabled unaligned memory access.  We can use
lz4 de/compression through crypto API as well.  Also, It will be useful
for another potential user of lz4 compression.

lz4 Compression Benchmark:
Compiler: ARM gcc 4.6.4
ARMv7, 1 GHz based board
   Kernel: linux 3.4
   Uncompressed data Size: 101 MB
         Compressed Size  compression Speed
   LZO   72.1MB		  32.1MB/s, 33.0MB/s(UA)
   LZ4   75.1MB		  30.4MB/s, 35.9MB/s(UA)
   LZ4HC 59.8MB		   2.4MB/s,  2.5MB/s(UA)
- UA: Unaligned memory Access support
- Latest patch set for LZO applied

This patch:

Add support for LZ4 compression in the Linux Kernel.  LZ4 Compression APIs
for kernel are based on LZ4 implementation by Yann Collet and were changed
for kernel coding style.

LZ4 homepage : http://fastcompression.blogspot.com/p/lz4.html
LZ4 source repository : http://code.google.com/p/lz4/
svn revision : r90

Two APIs are added:

lz4_compress() support basic lz4 compression whereas lz4hc_compress()
support high compression or CPU performance get lower but compression
ratio get higher.  Also, we require the pre-allocated working memory with
the defined size and destination buffer must be allocated with the size of
lz4_compressbound.

[akpm@linux-foundation.org: make lz4_compresshcctx() static]
Signed-off-by: Chanho Min <chanho.min@lge.com>
Cc: "Darrick J. Wong" <djwong@us.ibm.com>
Cc: Bob Pearson <rpearson@systemfabricworks.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Herbert Xu <herbert@gondor.hengli.com.au>
Cc: Yann Collet <yann.collet.73@gmail.com>
Cc: Kyungsik Lee <kyungsik.lee@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
lib/lz4: correct the LZ4 license

The LZ4 code is listed as using the "BSD 2-Clause License".

Signed-off-by: Richard Laager <rlaager@wiktel.com>
Acked-by: Kyungsik Lee <kyungsik.lee@lge.com>
Cc: Chanho Min <chanho.min@lge.com>
Cc: Richard Yao <ryao@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[ The 2-clause BSD can be just converted into GPL, but that's rude and
  pointless, so don't do it   - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
lz4: fix compression/decompression signedness mismatch

LZ4 compression and decompression functions require different in
signedness input/output parameters: unsigned char for compression and
signed char for decompression.

Change decompression API to require "(const) unsigned char *".

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Kyungsik Lee <kyungsik.lee@lge.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Yann Collet <yann.collet.73@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
lz4: ensure length does not wrap

Given some pathologically compressed data, lz4 could possibly decide to
wrap a few internal variables, causing unknown things to happen.  Catch
this before the wrapping happens and abort the decompression.

Reported-by: "Don A. Bailey" <donb@securitymouse.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
lz4: fix another possible overrun

There is one other possible overrun in the lz4 code as implemented by
Linux at this point in time (which differs from the upstream lz4
codebase, but will get synced at in a future kernel release.)  As
pointed out by Don, we also need to check the overflow in the data
itself.

While we are at it, replace the odd error return value with just a
"simple" -1 value as the return value is never used for anything other
than a basic "did this work or not" check.

Reported-by: "Don A. Bailey" <donb@securitymouse.com>
Reported-by: Willy Tarreau <w@1wt.eu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
lz4: add overrun checks to lz4_uncompress_unknownoutputsize()

Jan points out that I forgot to make the needed fixes to the
lz4_uncompress_unknownoutputsize() function to mirror the changes done
in lz4_decompress() with regards to potential pointer overflows.

The only in-kernel user of this function is the zram code, which only
takes data from a valid compressed buffer that it made itself, so it's
not a big issue.  But due to external kernel modules using this
function, it's better to be safe here.

Reported-by: Jan Beulich <JBeulich@suse.com>
Cc: "Don A. Bailey" <donb@securitymouse.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arm: add support for LZ4-compressed kernel

Integrates the LZ4 decompression code to the arm pre-boot code.

Signed-off-by: Kyungsik Lee <kyungsik.lee@lge.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Yann Collet <yann.collet.73@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Conflicts:

	arch/arm/boot/compressed/Makefile
ux500_usb: sync with CoCore