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533,096 commits

Author SHA1 Message Date
Krzysztof Kozlowski
6425f646ff [media] media: platform: s5p: Constify platform_device_id
The platform_device_id is not modified by the driver and core uses it as
const.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
[k.debski@samsung.com: Fix misspelling in title (s/sp5/s5p/)]
Signed-off-by: Kamil Debski <k.debski@samsung.com>

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-12 03:49:22 -03:00
Krzysztof Kozlowski
ef00b7ae68 [media] media: platform: s3c-camif: Constify platform_device_id
The platform_device_id is not modified by the driver and core uses it as
const.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-12 03:48:58 -03:00
Krzysztof Kozlowski
c42639d8a6 [media] media: platform: exynos4-is: Constify platform_device_id
The platform_device_id is not modified by the driver and core uses it as
const.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-12 03:48:40 -03:00
Krzysztof Kozlowski
40437e703f [media] media: platform: exynos-gsc: Constify platform_device_id
The platform_device_id is not modified by the driver and core uses it as
const.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-12 03:48:01 -03:00
Casey Schaufler
1ddd3b4e07 LSM: Remove unused capability.c
The stub functions in capability.c are no longer required
with the list based stacking mechanism. Remove the file.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Paul Moore <paul@paul-moore.com>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2015-05-12 15:00:45 +10:00
Casey Schaufler
b1d9e6b064 LSM: Switch to lists of hooks
Instead of using a vector of security operations
with explicit, special case stacking of the capability
and yama hooks use lists of hooks with capability and
yama hooks included as appropriate.

The security_operations structure is no longer required.
Instead, there is a union of the function pointers that
allows all the hooks lists to use a common mechanism for
list management while retaining typing. Each module
supplies an array describing the hooks it provides instead
of a sparsely populated security_operations structure.
The description includes the element that gets put on
the hook list, avoiding the issues surrounding individual
element allocation.

The method for registering security modules is changed to
reflect the information available. The method for removing
a module, currently only used by SELinux, has also changed.
It should be generic now, however if there are potential
race conditions based on ordering of hook removal that needs
to be addressed by the calling module.

The security hooks are called from the lists and the first
failure is returned.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Paul Moore <paul@paul-moore.com>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2015-05-12 15:00:41 +10:00
Casey Schaufler
e20b043a69 LSM: Add security module hook list heads
Add a list header for each security hook. They aren't used until
later in the patch series. They are grouped together in a structure
so that there doesn't need to be an external address for each.

Macro-ize the initialization of the security_operations
for each security module in anticipation of changing out
the security_operations structure.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Paul Moore <paul@paul-moore.com>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2015-05-12 15:00:36 +10:00
Casey Schaufler
f25fce3e8f LSM: Introduce security hook calling Macros
Introduce two macros around calling the functions in the
security operations vector. The marco versions here do not
change any behavior.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Paul Moore <paul@paul-moore.com>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2015-05-12 15:00:30 +10:00
Casey Schaufler
346033a28f LSM: Remove a comment from security.h
Remove the large comment describing the content of the
security_operations structure from security.h. This
wasn't done in the previous (2/7) patch because it
would have exceeded the mail list size limits.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Paul Moore <paul@paul-moore.com>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2015-05-12 15:00:25 +10:00
Casey Schaufler
fe7bb272ee LSM: Add the comment to lsm_hooks.h
Add the large comment describing the content of the
security_operations structure to lsm_hooks.h. This
wasn't done in the previous (1/7) patch because it
would have exceeded the mail list size limits.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Paul Moore <paul@paul-moore.com>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2015-05-12 15:00:21 +10:00
Casey Schaufler
3c4ed7bdf5 LSM: Split security.h
The security.h header file serves two purposes,
interfaces for users of the security modules and
interfaces for security modules. Users of the
security modules don't need to know about what's
in the security_operations structure, so pull it
out into it's own header, lsm_hooks.h

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Paul Moore <paul@paul-moore.com>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2015-05-12 15:00:16 +10:00
Benson Leung
2d805fc1c6 mailbox: Fix up error handling in mbox_request_channel()
mbox_request_channel() currently returns EBUSY in the event the controller
is not present or if of_xlate() fails, but in neither case is EBUSY really
appropriate.  Return EPROBE_DEFER if the controller is not yet present
and change of_xlate() to return an ERR_PTR instead of NULL so that the
error can be propagated back to the caller of mbox_request_channel().

Signed-off-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Acked-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2015-05-12 09:18:21 +05:30
Andrew Bresticker
05ae797566 mailbox: Make mbox_chan_ops const
The mailbox controller's channel ops ought to be read-only.  Update
all the mailbox drivers to make their mbox_chan_ops const as well.

Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Cc: Ashwin Chaugule <ashwin.chaugule@linaro.org>
Cc: Ley Foon Tan <lftan@altera.com>
Acked-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2015-05-12 09:18:16 +05:30
Richard Weinberger
59dd3f0261 mailbox: altera: Add dependency on HAS_IOMEM
Not all architectures have io memory.

Fixes:
drivers/built-in.o: In function `altera_mbox_probe':
mailbox-altera.c:(.text+0x409fd2): undefined reference to `devm_ioremap_resource'

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2015-05-12 09:18:11 +05:30
Eduardo Valentin
a46dbae8ab thermal: of-thermal: add support for reading coefficients property
In order to avoid having each driver adding their own
specific DT property to specify slope and offset,
this patch adds a basic coefficient reading from
DT thermal zone node. Right now, as the thermal
framework does not support multiple sensors,
the current coefficients apply only to the only
sensor in the thermal zone.

The supported equation is a simple linear model:
	slope * <sensor reading> + offset.

slope and offset are read from the coefficients
DT property. In the same way as it is described in
the DT thermal binding.

So, as of today, the thermal framework will support
only cases like:
                /* hotspot = 1 * adc + 6000 */
		coefficients =          <1      6000>;

Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-05-11 19:48:09 -07:00
Eduardo Valentin
9d0be7f481 thermal: support slope and offset coefficients
It is common to have a linear extrapolation from
the current sensor readings and the actual temperature
value. This is specially the case when the sensor
is in use to extrapolate hotspots.

This patch adds slope and offset constants for
single sensor linear extrapolation equation. Because
the same sensor can be use in different locations,
from board to board, these constants are added
as part of thermal_zone_params.

The constants are available through sysfs.

It is up to the device driver to determine
the usage of these values.

Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-05-11 19:46:52 -07:00
Javi Merino
ea54cac906 thermal: power_allocator: round the division when divvying up power
In situations where there is an uneven number of cooling devices, the
division of power among them can lead to a milliwatt being dropped on
the floor due to rounding errors.  This doesn't sound like a lot, but
some devices only grant the lowest cooling device state for their
maximum power.  So for instance, if the granted_power is the maximum
power and all devices are getting their maximum power, one would get
max_power - 1, making it choose cooling device state 1, instead of 0.

Round the division to make the calculation more accurate.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-05-11 18:57:44 -07:00
Aneesh Kumar K.V
7b868e81be powerpc/mm: Return NULL for not present hugetlb page
We need to check whether pte is present in follow_huge_addr() and
properly return NULL if mapping is not present. Also use READ_ONCE
when dereferencing pte_t address.

Without this patch, we may wrongly return a zero pfn page in
follow_huge_addr().

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-05-12 11:04:29 +10:00
Doug Ledford
2936ae04aa MAINTAINERS: update the official rdma git repo
Linus prefers kernel.org repos to github repos for security.

Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-05-11 21:03:36 -04:00
Aneesh Kumar K.V
13bd817bb8 powerpc/thp: Serialize pmd clear against a linux page table walk.
Serialize against find_linux_pte_or_hugepte() which does lock-less
lookup in page tables with local interrupts disabled. For huge pages it
casts pmd_t to pte_t. Since the format of pte_t is different from pmd_t
we want to prevent transit from pmd pointing to page table to pmd
pointing to huge page (and back) while interrupts are disabled.  We
clear pmd to possibly replace it with page table pointer in different
code paths. So make sure we wait for the parallel
find_linux_pte_or_hugepage() to finish.

Without this patch, a find_linux_pte_or_hugepte() running in parallel to
__split_huge_zero_page_pmd() or do_huge_pmd_wp_page_fallback() or
zap_huge_pmd() can run into the above issue. With
__split_huge_zero_page_pmd() and do_huge_pmd_wp_page_fallback() we clear
the hugepage pte before inserting the pmd entry with a regular pgtable
address. Such a clear need to wait for the parallel
find_linux_pte_or_hugepte() to finish.

With zap_huge_pmd(), we can run into issues, with a hugepage pte getting
zapped due to a MADV_DONTNEED while other cpu fault it in as small
pages.

Reported-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Reviewed-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-05-12 11:03:29 +10:00
Yoshihiro Shimoda
7706993e2d ARM: shmobile: r8a7791: Enable DMA for HSUSB
This patch adds DMA properties to the HSUSB node.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-05-12 08:55:16 +09:00
Yoshihiro Shimoda
e3e25edc11 ARM: shmobile: r8a7791: add USB-DMAC device nodes
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-05-12 08:55:12 +09:00
Yoshihiro Shimoda
e8295dc391 ARM: shmobile: r8a7790: Enable DMA for HSUSB
This patch adds DMA properties to the HSUSB node.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-05-12 08:55:05 +09:00
Yoshihiro Shimoda
a3ff2090dc ARM: shmobile: r8a7790: add USB-DMAC device nodes
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-05-12 08:55:00 +09:00
Brian Norris
5844feeaa4 mtd: nand: add common DT init code
These are already-documented common bindings for NAND chips. Let's
handle them in nand_base.

If NAND controller drivers need to act on this data before bringing up
the NAND chip (e.g., fill out ECC callback functions, change HW modes,
etc.), then they can do so between calling nand_scan_ident() and
nand_scan_tail().

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-05-11 16:22:29 -07:00
Nicholas Mc Guire
e76ff06a95 livepatch: match return value to function signature
klp_initialized() should return bool but is actually returning
struct kobject * - convert it to a boolean explicitly.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Reviewed-by: Jiri Slaby <jslaby@suse.cz
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-05-11 23:43:52 +02:00
Linus Torvalds
4cfceaf0c0 Merge branch 'for-4.1' of git://linux-nfs.org/~bfields/linux
Pull nfsd bugfixes from Bruce Fields:
 "Mainly pnfs fixes (and for problems with generic callback code made
  more obvious by pnfs)"

* 'for-4.1' of git://linux-nfs.org/~bfields/linux:
  nfsd: skip CB_NULL probes for 4.1 or later
  nfsd: fix callback restarts
  nfsd: split transport vs operation errors for callbacks
  svcrpc: fix potential GSSX_ACCEPT_SEC_CONTEXT decoding failures
  nfsd: fix pNFS return on close semantics
  nfsd: fix the check for confirmed openowner in nfs4_preprocess_stateid_op
  nfsd/blocklayout: pretend we can send deviceid notifications
2015-05-11 14:42:52 -07:00
Steve Wise
940fd304d2 iw_cxgb4: use wildcard mapping for getting remote addr info
For listening endpoints bound to the wildcard address, we need to pass
the wildcard address mapping to iwpm_get_remote_info() instead of the
mapped address of the new child connection.

Without this fix, and with iwarp port mapping enabled, each iw_cxgb4
connection that is spawned from a listening endpoint bound to the wildcard
address, will generate an annoying dmesg entry about failing to find
the remote address mapping info, and the connection state displayed in
debugfs under /sys/kernel/debug/iw_cxgb4/<pci-slot-no>/eps  will not have
the peer's address/port mapping info.  The connection still works though.

Fixes: 5b6b8fe ("RDMA/cxgb4: Report the actual address of the remote connecting peer")

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-05-11 17:16:49 -04:00
Nicholas Mc Guire
94634e9861 IB/ehca: use correct destination for memcpy
Using an element of a struct as the address for the memcpy of the whole
struct may introduce a buffer overflow and does not help readability either
simply pass the real thing as first argument to memcpy.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-05-11 17:14:37 -04:00
Linus Torvalds
ef208162b7 spi: Fixes for v4.1
A number of driver specific fixes (including several missing
 dependencies for randconfig type cases) plus two core fixes.  One makes
 the setup_transfer() callback optional which unbreaks some drivers which
 had been merged with it omitted due to local versions of this patch and
 another ensures that we don't corrupt data by leaking internal dummy
 buffers to callers, causing the callers to think they allocated those
 buffers.
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Merge tag 'spi-fix-v4.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A number of driver specific fixes (including several missing
  dependencies for randconfig type cases) plus two core fixes.

  One makes the setup_transfer() callback optional which unbreaks some
  drivers which had been merged with it omitted due to local versions of
  this patch and another ensures that we don't corrupt data by leaking
  internal dummy buffers to callers, causing the callers to think they
  allocated those buffers"

* tag 'spi-fix-v4.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: fsl-espi: fix behaviour for full-duplex xfers
  spi: fsl-spi: fix devm_ioremap_resource() error case
  spi: Kconfig: Add SOC_LS1021A to SPI_FSL_DSPI dependence
  spi/omap2-mcpsi: Always call spi_finalize_current_message()
  spi: fsl-spi: use devm_ioremap_resource() to map parameter ram on CPM1
  spi: bitbang: Make setup_transfer() callback optional
  spi: check tx_buf and rx_buf in spi_unmap_msg
  spi: bcm2835: change timeout of polling driver to 1s
  spi: bcm2835: Add GPIOLIB dependency
2015-05-11 13:57:47 -07:00
Tony Lindgren
e60a8fe179 ARM: OMAP2+: first set of hwmod fixes for v4.1-rc
Fix a few AM43xx problems: add the VPFE hwmod data, which removes some
 warnings; and fix the IP block hardreset implementation.
 
 Basic build, boot, and PM test results are here:
 
 http://www.pwsan.com/omap/testlogs/omap-hwmod-a-for-v4.1-rc/20150508130543/
 
 Note that I do not have an AM43xx board in the testbed, and thus
 cannot test on that platform.
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Merge tag 'for-v4.1-rc/omap-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v4.1/fixes

ARM: OMAP2+: first set of hwmod fixes for v4.1-rc

Fix a few AM43xx problems: add the VPFE hwmod data, which removes some
warnings; and fix the IP block hardreset implementation.

Basic build, boot, and PM test results are here:

http://www.pwsan.com/omap/testlogs/omap-hwmod-a-for-v4.1-rc/20150508130543/

Note that I do not have an AM43xx board in the testbed, and thus
cannot test on that platform.
2015-05-11 13:23:19 -07:00
Tony Lindgren
b0897972ed ARM: OMAP2+: Remove bogus struct clk comparison for timer clock
With recent changes to use determine_rate, the comparison of two
clocks won't work without clk_is_match that does __clk_get_hw
on the clocks first.

As we've been unconditionally already calling clk_set_parent
already because of the bogus comparison, let's just remove the
check as suggested by Stephen Boyd <sboyd@codeaurora.org>.

Cc: Michael Turquette <mturquette@linaro.org>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-05-11 13:18:19 -07:00
Dinh Nguyen
65ce7a37ec ARM: socfpga: remove the need to map uart_io_desc
All the necessary debug uart mapping is already being done in
debug_ll_io_init, there's no need for it here.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-05-11 13:59:53 -05:00
Dinh Nguyen
de73c162fc ARM: socfpga: Add support for UART1 debug uart for earlyprintk
Add support for hardware uart1 for earlyprintk support on Arria10 devkit.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-05-11 13:59:52 -05:00
Ben Dooks
3c5ac3f392 ARM: socfpga: support big endian for socfpga
Now the debug and platsmp.S are fixed for big endian, the
architecture can now advertise big endian support.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-05-11 13:59:23 -05:00
Ben Dooks
bf55e0a48f ARM: socfpga: enable big endian for secondary core(s)
Update the secondary code to allow the secondary boot to work when the
system is running big endian.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-05-11 13:59:23 -05:00
Ben Dooks
6ef4e47926 ARM: debug: fix big endian operation for 8250 word mode
If the 8250 debug code is used in word mode on an big endian
host then the writes need to be change into little endian for
the bus.

Note, we have to re-convert the value back as the debug code
will inspect the value after writing it to see if a newline
has been written.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-05-11 13:59:23 -05:00
Dinh Nguyen
da29d824a6 ARM: socfpga: dts: add clocks to the Arria10 platform
Add all the clock nodes for the Arria10 platform. At the same time, update
the peripherals with their respective clocks property.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
---
v2: Add the l4_sys_free_clk node
2015-05-11 13:26:02 -05:00
Martin Sperl
3ecd37edaa spi: bcm2835: enable dma modes for transfers meeting certain conditions
Conditions per spi_transfer are:
* transfer.len >= 96 bytes (to avoid mapping overhead costs)
* transfer.len < 65536 bytes (limitaion by spi-hw block - could get extended)
* an individual scatter/gather transfer length must be a multiple of 4
  for anything but the last transfer - spi-hw block limit.
  (some shortcut has been taken in can_dma to avoid unnecessary mapping of
   pages which, for which there is a chance that there is a split with a
   transfer length not a multiple of 4)

If it becomes a necessity these restrictions can get removed by additional
code.

Note that this patch requires a patch to dma-bcm2835.c by Noralf to
enable scatter-gather mode inside the dmaengine, which has not been
merged yet.

That is why no patch to arch/arm/boot/dts/bcm2835.dtsi is included - the
code works as before without dma when tx/rx are not set, but it writes
a message warning about dma not used:
spi-bcm2835 20204000.spi: no tx-dma configuration found - not using dma mode

To enable dma-mode add the following lines to the device-tree:
        dmas = <&dma 6>, <&dma 7>;
        dma-names = "tx", "rx";

Tested-by: Noralf Trønnes <noralf@tronnes.org> (private communication)
Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-05-11 19:24:27 +01:00
Eric Dumazet
b396cca6fa net: sched: deprecate enqueue_root()
Only left enqueue_root() user is netem, and it looks not necessary :

qdisc_skb_cb(skb)->pkt_len is preserved after one skb_clone()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-11 14:17:32 -04:00
Michal Simek
3824246d37 net: ll_temac: Use one return statement instead of two
Use one return statement instead of two to simplify the code.
Both are returning the same value.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-11 14:16:18 -04:00
Vince Bridgers
c01e8cdb7b ARM: socfpga: dts: Add tx-fifo-depth and rx-fifo-depth properties
Add tx-fifo-depth and rx-fifo-depth devicetree properties for socfpga
stmmac. These devicetree properties will be used to configure certain
features of the stmmac on the socfpga.

Signed-off-by: Vince Bridgers <vbridger@opensource.altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-05-11 13:15:00 -05:00
Vince Bridgers
be9863cac2 ARM: socfpga: dts: Add multicast bins and unicast filter entries
Add multicast-filter-bins and perfect-filter-entries configuration properties
to the socfpga devicetree for the Arria 10 socfpga.

Signed-off-by: Vince Bridgers <vbridger@opensource.altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-05-11 13:14:59 -05:00
Dinh Nguyen
5459f9abe2 ARM: socfpga: dts: Add a clock node for sdmmc CIU
The CIU(Card Interface Unit) get its clock from the sdmmc_clk_divided clock
which is used to clock the card. The sdmmc_clk_divided clock is the sdmmc_clk
passed through a fixed divider of 4. This patch adds the sdmmc_clk_divided
node and makes the sdmmc_clk it's parent.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
---
v2: renamed ciu_clk to sdmmc_clk_divided
2015-05-11 13:14:59 -05:00
Dinh Nguyen
88c8e4c264 ARM: socfpga: dts: rename socdk board file to socdk_sdmmc
Rename the socfpga_arria10_socdk board file to socfpga_arria10_socdk_sdmmc
as Arria 10 devkit cannot support SDMMC and QSPI at the same time. Thus
we will need to have 2 separate board files, one for SDMMC and one for
QSPI. We also add a new base board dtsi file, socfpga_arria10_socdk.dtsi
so that we use common peripherals for each flavor of the devkits.

Add the sdmmc node to the socfpga_arria10_socdk_sdmmc.dts board file.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-05-11 13:14:59 -05:00
Dinh Nguyen
74568da48f ARM: socfpga: dts: enable UART1 for the debug uart
Arria10 devkit is using UART1 for the debug uart port. Remove
unused aliases.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
---
v2: Add removal of unused aliases
2015-05-11 13:14:59 -05:00
Dinh Nguyen
1dfb7d2fd6 ARM: socfpga: dts: disable the sdmmc, and uart nodes in the base arria10
Add status = "disabled" in the base DTSI for Arria10.  The SDMMC and uart
nodes should be enabled in the appropriate board file.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-05-11 13:14:59 -05:00
Dinh Nguyen
08d6638f1a ARM: socfpga: dts: add cpu1-start-addr for Arria 10
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-05-11 13:14:58 -05:00
Walter Lozano
bf513bf046 ARM: socfpga: dts: Add adxl34x
This patch adds the DTS bindings for the adxl34x digital
accelerometer.

Signed-off-by: Walter Lozano <walter@vanguardiasur.com.ar>
Acked-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
2015-05-11 13:14:58 -05:00
Linus Torvalds
a156e0682f IOMMU Fixes for Linux v4.1-rc3
Three fixes have queued up:
 
         * Reference count fix in the AMD IOMMUv2 driver
 
         * Sign extension fix in the ARM-SMMU driver
 
 	* Build fix for rockchip driver with device tree
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Merge tag 'iommu-fixes-v4.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu fixes from Joerg Roedel:
 "Three fixes have queued up:

   - reference count fix in the AMD IOMMUv2 driver

   - sign extension fix in the ARM-SMMU driver

   - build fix for rockchip driver with device tree"

* tag 'iommu-fixes-v4.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/arm-smmu: Fix sign-extension of upstream bus addresses at stage 1
  iommu/rockchip: Fix build without CONFIG_OF
  iommu/amd: Fix bug in put_pasid_state_wait
2015-05-11 11:09:54 -07:00