xtensa: Export __invalidate_icache_range

When modular code calls flush_icache_range():

    ERROR: "__invalidate_icache_range" [drivers/misc/lkdtm.ko] undefined!
    make[1]: *** [__modpost] Error 1

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
xtensa: export __{invalidate,flush}_dcache_range

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
xtensa: enable sorting extable at build time

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: David Daney <ddaney.cavm@gmail.com>
xtensa: split bootparam and kernel meminfo

Bootparam meminfo is a bootloader ABI, kernel meminfo is for the kernel
bookkeeping, keep them separate. Kernel doesn't care of memory region
types, so drop the type field and don't pass it to add_sysmem_bank.
Move kernel sysmem structures and prototypes to asm/sysmem.h and sysmem
variable and add_sysmem_bank to mm/init.c

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
xtensa: keep sysmem banks ordered in add_sysmem_bank

Rewrite add_sysmem_bank so that it keeps bank order and merges
adjacent/overlapping banks.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
xtensa: keep sysmem banks ordered in mem_reserve

Rewrite mem_reserve so that it keeps bank order.
Also make its return code more traditional.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
xtensa: handle memmap kernel option

This option is useful for reserving memory regions for secondary cores
in AMP configurations.

Implement the following memmap variants:
- memmap=nn[KMG]@ss[KMG]: force usage of a specific region of memory;
- memmap=nn[KMG]$ss[KMG]: mark specified memory as reserved;
- memmap=nn[KMG]: set end of memory.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
xtensa: dump sysmem from the bootmem_init

Debug dump of physical memory configuration. Useful for inspection of
resulting memory map, esp. in the presence of memmap= kernel option.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
xtensa: optimize local_flush_tlb_kernel_range

Don't flush whole TLB if only a small kernel range is requested.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
xtensa: add HIGHMEM support

Introduce fixmap area just below the vmalloc region. Use it for atomic
mapping of high memory pages.
High memory on cores with cache aliasing is not supported and is still
to be implemented. Fail build for such configurations for now.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
xtensa: xtfpga: introduce SoC I/O bus

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
xtensa: add support for KC705

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Merge tag 'xtensa-for-next-20140406' of git://github.com/jcmvbkbc/linux-xtensa into for_next

Merging from Max' tree.

Xtensa fixes for 3.15:
- add missing cache manipulation symbol exports to fix build failures;
- sort extable at build time;
- clean up sysmem code, support memmap boot parameter;
- add highmem support for cores with non-aliasing caches;
- add DTS for xtfpga on KC705.

Signed-off-by: Chris Zankel <chris@zankel.net>
xtensa: xt2000: drop redundant sysmem initialization

sysmem structure initialization in xt2000 platform_init is identical to
the one done in init_arch just before the call to platform_init.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
usb: phy: fsm: update OTG HNP state transition

According to:"On-The-Go and Embedded Host Supplement to the USB Revision 2.0
Specification July 27, 2012 Revision 2.0 version 1.1a"

- add a_wait_vrise to a_wait_vfall
- update condition from a_wait_vrise to a_wait_bcon

Signed-off-by: Li Jun <b47624@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: phy: fsm: change "|" to "||" for condition OTG_STATE_A_WAIT_BCON at statemachine

We should be using logical "or" not bitwise "or".

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
staging:iio:ad2s1200 fix missing parenthesis in a for statment.

Signed-off-by: Jimmy Li <coder.liss@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio:imu:mpu6050: Fixed segfault in Invensens MPU driver due to null dereference

The driver segfaults when the kernel boots with device tree as the
platform data is then not present and the pointer is deferenced without
checking it is not null.  This patch introduces such a check avoiding the
crash.

Signed-off-by: Atilla Filiz <atilla.filiz@essensium.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Cc: Stable@vger.kernel.org
iio: exynos_adc: use indio_dev->dev structure to handle child nodes

Using pdev->dev with device_for_each_child() would iterate over all
of the children of the platform device and delete them.
Thus, causing crashes during module unload.

We should be using the indio_dev->dev structure for
registering/unregistering child nodes.

Reported-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Naveen Krishna Ch <ch.naveen@samsung.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
iio: adc: Nothing in ADC should be a bool CONFIG

The whole IIO subsystem can be built as modules.  If you make it a
module then stuff marked as "Y" in the adc directory simply won't be
linked in properly.

The two configs that were wrong were EXYNOS_ADC and LP8788_ADC.  I
know for a fact that EXYNOS_ADC will work as a module. I assume
LP8788_ADC will also be fine.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>