Commit Graph

534912 Commits

Author SHA1 Message Date
Vladimir Zapolskiy
98ce2d27a3 misc: sram: sort and clean up included headers
Most of the included header files are already included as
dependencies.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:03:57 -07:00
Vladimir Zapolskiy
a0a5be0b36 misc: sram: move reserved block logic out of probe function
No functional change, but now previously overloaded sram_probe() is
greatly simplified and perceptible, reserved regions logic also has
its own space.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:03:56 -07:00
Vladimir Zapolskiy
665d82fbbc misc: sram: add private struct device and virt_base members
No functional change, this is a preceding change to simplify
separation of reserved partition handling logic from probe()
function.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:03:56 -07:00
Vladimir Zapolskiy
4914f1c717 misc: sram: report correct SRAM pool size
Since some space in SRAM may be reserved, report the left free space
in the allocated memory pool instead of total physical size of the
SRAM device.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:03:56 -07:00
Vladimir Zapolskiy
d687b1fa67 misc: sram: bump error message level on unclean driver unbinding
Report an error level message to a user, if the driver is unbound
while there are still some pool allocations.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:03:56 -07:00
Vladimir Zapolskiy
b13365bbec misc: sram: fix device node reference leak on error
A pointer device node reference should be decremented on manual exit
from for_each_available_child_of_node() loop.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:03:56 -07:00
Vladimir Zapolskiy
ee895ccdf7 misc: sram: fix enabled clock leak on error path
If devm_gen_pool_create() fails, the previously enabled sram->clk is
not disabled on probe() exit.

Because reserved block logic relies only on information from device tree,
there is no need to get and enable device clock in advance, especially
because not provided clock is not considered as an error, so it is
safe to place devm_clk_get() at the end of probe(). No functional
change.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:03:56 -07:00
Sudeep Dutt
0a3405d35c misc: mic: Fix reported static checker warning
Delete unnecessary prints resulting in an "spdev could be null"
warning from a static checker in scif_peer_remove(..).

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:01:43 -07:00
Sudeep Dutt
24732e7ee9 misc: mic: Fix randconfig build error by including errno.h
This issue was reported @ https://lkml.org/lkml/2015/6/9/731

Reported-by: Jim Davis <jim.epost@gmail.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:01:43 -07:00
Matwey V. Kornilov
e040c4d97a uio: pruss: Drop depends on ARCH_DAVINCI_DA850 from config
mach-dependant stuff has been removed by
    2eb2478d47 ("uio: uio_pruss: replace private SRAM API with genalloc")

There is no need to keep
    depends on ARCH_DAVINCI_DA850

Signed-off-by: Matwey V. Kornilov <matwey@sai.msu.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:01:43 -07:00
Matwey V. Kornilov
b42df9c262 uio: pruss: Add CONFIG_HAS_IOMEM dependence
uio_pruss uses io memory, that should be explicitly depend on it

Signed-off-by: Matwey V. Kornilov <matwey@sai.msu.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:01:43 -07:00
Matwey V. Kornilov
8767267602 uio: pruss: Include <linux/sizes.h>
uio_pruss references SZ_16K and SZ_256K defines, but linux/sizes.h is not included.

Signed-off-by: Matwey V. Kornilov <matwey@sai.msu.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:01:43 -07:00
Chanwoo Choi
73b6ecdb93 extcon: Redefine the unique id of supported external connectors without 'enum extcon' type
This patch just redefine the unique id of supported external connectors without
'enum extcon' type. Because unique id would be used on devictree file(*.dts) to
indicate the specific external connectors like key number of input framework.
So, I have the plan to move this definitions to following header file which
includes the unique id of supported external connectors.
- include/dt-bindings/extcon/extcon.h

Fixes: 2a9de9c0f0 ("extcon: Use the unique id for external connector instead of string")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:01:42 -07:00
Shailendra Verma
03cb050301 char:xilinx_hwicap:buffer_icap - change 1/0 to true/false for bool type variable in function buffer_icap_set_configuration().
The variable dirty is bool type. Hence assign the variable with
bool value true/false instead of 1/0.

Signed-off-by: Shailendra Verma <shailendra.capricorn@gmail.com>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Moritz Fischer <moritz.fischer@ettus.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 16:58:33 -07:00
K. Y. Srinivasan
294409d205 Drivers: hv: vmbus: Allocate ring buffer memory in NUMA aware fashion
Allocate ring buffer memory from the NUMA node assigned to the channel.
Since this is a performance and not a correctness issue, if the node specific
allocation were to fail, fall back and allocate without specifying the node.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 16:58:33 -07:00
Sudip Mukherjee
50566ac870 parport: check exclusive access before register
As of now we were starting the registration process and after the device
is registered we were checking if the device can be used by the
parport. Now lets check it first so that we do not need to go through
the registration process only to fail at the end.
The original exclusive access check at the end is still there so that we
do not get any surprises if two different process registers its device
with same parport and with exclusive access at the same time.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 16:58:33 -07:00
Dan Carpenter
0c6d5c89a1 w1: use correct lock on error in w1_seq_show()
I noticed there was a problem here because Smatch complained:

	drivers/w1/slaves/w1_therm.c:416 w1_seq_show() warn:
	inconsistent returns 'mutex:&sl->master->mutex'.
	  Locked on:   line 416
	  Unlocked on: line 413

The problem is that we lock ->mutex but we unlock ->bus_mutex on error.
David Fries says that ->bus_mutex is correct and ->mutex is incorrect.

Fixes: d9411e57dc ('w1: Add support for DS28EA00 sequence to w1-therm')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 16:58:33 -07:00
Dan Carpenter
a14ef24b07 w1: fix for loop exit condition in w1_seq_show()
The W1_42_FINISHED_BYTE is 0xFF so the cast means the condition is
never true.

Fixes: d9411e57dc ('w1: Add support for DS28EA00 sequence to w1-therm')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 16:58:33 -07:00
James Morris
d6f7aa27f4 Merge branch 'smack-for-4.2-stacked' of https://github.com/cschaufler/smack-next into next 2015-06-13 09:51:16 +10:00
Vincent Cuissard
d0dcad8bd3 NFC: nfcmrvl: set PB_BAIL_OUT at setup
PB_BAIL_OUT parameter as to be set to one. This is needed because
digital protocol 1.0 is used in combination with ISO15693 protocol.

Signed-off-by: Vincent Cuissard <cuissard@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-06-13 00:08:55 +02:00
Vincent Cuissard
34ac496641 NFC: nci: remove current SLEEP mode management
NCI deactivate management was modified to support all NCI
deactivation type. Problem is that all the API are not ready
yet for it.

Problem is that with current code, when neard asks to deactivate
the tag it sends a deactivate SLEEP but nobody will then send a
IDLE deactivate. This IDLE deactivate is mandatory since NFC
controller can only be unlocked by DH.

Signed-off-by: Vincent Cuissard <cuissard@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-06-13 00:08:09 +02:00
Vincent Cuissard
83d567259b NFC: nfcmrvl: Allow ISO15693 protocol
Reference Marvell NFC controller as ISO15693 capable.

Signed-off-by: Vincent Cuissard <cuissard@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-06-13 00:07:56 +02:00
Vincent Cuissard
43465b7af2 NFC: nfcmrvl: small fix in USB driver
Marvell NFC USB driver has to be updated to follow new multi
PHY driver interface.

Signed-off-by: Vincent Cuissard <cuissard@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-06-13 00:07:17 +02:00
Dan Carpenter
46965688ac clk: meson: add some error handling in meson_clk_register_cpu()
This error handling hopefully isn't needed but it make the static
checkers happy.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-06-12 14:30:19 -07:00
Stephen Boyd
2210978516 clk: pxa: Fix const discarding warning
A recent change to mark parent names as const missed this struct
member so we get warnings like:

drivers/clk/pxa/clk-pxa25x.c:122:2: warning: initialization
discards 'const' qualifier from pointer target type

Fix it.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-06-12 14:30:12 -07:00
David S. Miller
ea70477099 Merge branch 'flow_dissector-next'
Tom Herbert says:

====================
flow_dissector: Fix MPLS parsing and add ext hdr support

Need to shift label. Added parsing of dst, hop-by-hop, and routing
extension headers.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-12 14:24:28 -07:00
Tom Herbert
6a74fcf426 flow_dissector: add support for dst, hop-by-hop and routing ext hdrs
If dst, hop-by-hop or routing extension headers are present determine
length of the options and skip over them in flow dissection.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-12 14:24:28 -07:00
Tom Herbert
611d23c559 flow_dissector: Fix MPLS entropy label handling in flow dissector
Need to shift after masking to get label value for comparison.

Fixes: b3baa0fbd0 ("mpls: Add MPLS entropy label in flow_keys")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-12 14:24:27 -07:00
Masanari Iida
b07d496177 Doc: networking: Fix URL for wiki.wireshark.org in udplite.txt
This patch fix URL (http to https) for wiki.wireshark.org.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-12 14:21:29 -07:00
Florian Westphal
b60f2f3d65 net: ipv4: un-inline ip_finish_output2
text    data     bss     dec     hex filename
old: 16527      44       0   16571    40bb net/ipv4/ip_output.o
new: 14935      44       0   14979    3a83 net/ipv4/ip_output.o

Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-12 14:19:17 -07:00
Marcelo Ricardo Leitner
ae36806a62 sctp: allow authenticating DATA chunks that are bundled with COOKIE_ECHO
Currently, we can ask to authenticate DATA chunks and we can send DATA
chunks on the same packet as COOKIE_ECHO, but if you try to combine
both, the DATA chunk will be sent unauthenticated and peer won't accept
it, leading to a communication failure.

This happens because even though the data was queued after it was
requested to authenticate DATA chunks, it was also queued before we
could know that remote peer can handle authenticating, so
sctp_auth_send_cid() returns false.

The fix is whenever we set up an active key, re-check send queue for
chunks that now should be authenticated. As a result, such packet will
now contain COOKIE_ECHO + AUTH + DATA chunks, in that order.

Reported-by: Liu Wei <weliu@redhat.com>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-12 14:18:20 -07:00
Kevin Hilman
e75ea4569d Merge branch 'for-arm-soc' of http://ftp.arm.linux.org.uk/pub/armlinux/kernel/git-cur/linux-2.6-arm into next/cleanup
* 'for-arm-soc' of http://ftp.arm.linux.org.uk/pub/armlinux/kernel/git-cur/linux-2.6-arm:
  ARM: fix EFM32 build breakage caused by cpu_resume_arm
  ARM: 8389/1: Add cpu_resume_arm() for firmwares that resume in ARM state
  ARM: v7 setup function should invalidate L1 cache
2015-06-12 13:40:12 -07:00
Kevin Hilman
dec36f6ab8 ARM: multi_v7_defconfig: remove duplicate CONFIG_COMMON_CLK_QCOM=y
commit dcf9a03bff (ARM: multi_v7_defconfig: Enable PMIC and MUIC
drivers for exynos) mistakenly added an duplicate line for
CONFIG_COMMON_CLK_QCOM=y.  Remove it.

Signed-off-by: Kevin Hilman <khilman@linaro.org>
2015-06-12 13:30:53 -07:00
Tomi Valkeinen
5f741b39dd drm: omapdrm: new vblank and event handling
Rework the crtc event/flip_wait system as follows:

- If we enable a crtc (full modeset), we set omap_crtc->pending and
  register vblank irq.

- If we need to set GO bit (page flip), we do the same but also set the
  GO bit.

- On vblank we unregister the irq, clear the 'pending' flag, send vblank
  event to userspace if crtc->state->event != NULL, and wake up
  'pending_wait' wq.

- In omap_atomic_complete() we wait for the 'pending' flag to get reset
  for all enabled crtcs  using 'pending_wait' wq.

The above ensures that we send the events to userspace in vblank, and
that after the wait in omap_atomic_complete() everything for the
affected crtcs has been completed.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-06-12 23:30:47 +03:00
Bjorn Helgaas
0ff9b9bad6 Merge branches 'pci/aspm', 'pci/enumeration', 'pci/hotplug', 'pci/misc', 'pci/msi', 'pci/resource' and 'pci/virtualization' into next
* pci/aspm:
  PCI/ASPM: Simplify Clock Power Management setting
  PCI: Use dev->has_secondary_link to find downstream PCIe links
  PCI/ASPM: Use dev->has_secondary_link to find downstream links
  PCI: Add dev->has_secondary_link to track downstream PCIe links
  PCI/ASPM: Remove redundant PCIe port type checking
  PCI/ASPM: Drop __pci_disable_link_state() useless "force" parameter

* pci/enumeration:
  PCI: Remove unused pci_scan_bus_parented()
  xen/pcifront: Don't use deprecated function pci_scan_bus_parented()
  PCI: designware: Use pci_scan_root_bus() for simplicity
  PCI: tegra: Remove tegra_pcie_scan_bus()
  PCI: mvebu: Remove mvebu_pcie_scan_bus()

* pci/hotplug:
  PCI: pciehp: Wait for hotplug command completion where necessary
  PCI: Propagate the "ignore hotplug" setting to parent
  ACPI / hotplug / PCI: Check ignore_hotplug for all downstream devices
  PCI: pciehp: Drop pointless label from pciehp_probe()
  PCI: pciehp: Drop pointless ACPI-based "slot detection" check

* pci/misc:
  PCI: Remove unused pci_dma_burst_advice()
  PCI: Remove unused pcibios_select_root() (again)
  PCI: Remove unnecessary #includes of <asm/pci.h>
  PCI: Include <linux/pci.h>, not <asm/pci.h>

* pci/msi:
  PCI/MSI: Remove unused pci_msi_off()
  PCI/MSI: Drop pci_msi_off() calls from quirks
  ntb: Drop pci_msi_off() call during probe
  virtio_pci: drop pci_msi_off() call during probe
  PCI/MSI: Disable MSI at enumeration even if kernel doesn't support MSI
  PCI/MSI: Export pci_msi_set_enable(), pci_msix_clear_and_set_ctrl()
  PCI/MSI: Rename msi_set_enable(), msix_clear_and_set_ctrl()

* pci/resource:
  PCI: Add pci_bus_addr_t

* pci/virtualization:
  ACPI / PCI: Account for ARI in _PRT lookups
  PCI: Move pci_ari_enabled() to global header
  PCI: Add function 1 DMA alias quirk for Marvell 9120
  PCI: Add ACS quirks for Intel 9-series PCH root ports
2015-06-12 15:26:45 -05:00
Yijing Wang
c0300089fd PCI: Remove unused pci_scan_bus_parented()
No one uses pci_scan_bus_parented() any more, remove it.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2015-06-12 15:26:28 -05:00
Arnd Bergmann
515d425bd2 xen/pcifront: Don't use deprecated function pci_scan_bus_parented()
Use pci_scan_root_bus() instead of deprecated function
pci_scan_bus_parented().

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
CC: xen-devel@lists.xenproject.org
2015-06-12 15:26:28 -05:00
Josef Bacik
37b8d27de5 Btrfs: use received_uuid of parent during send
Neil Horman pointed out a problem where if he did something like this

receive A
snap A B
change B
send -p A B

and then on another box do

recieve A
receive B

the receive B would fail because we use the UUID of A for the clone sources for
B.  This makes sense most of the time because normally you are sending from the
original sources, not a received source.  However when you use a recieved subvol
its UUID is going to be something completely different, so if you then try to
receive the diff on a different volume it won't find the UUID because the new A
will be something else.  The only constant is the received uuid.  So instead
check to see if we have received_uuid set on the root, and if so use that as the
clone source, as btrfs receive looks for matches either in received_uuid or
uuid.  Thanks,

Reported-by: Neil Horman <nhorman@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Reviewed-by: Hugo Mills <hugo@carfax.org.uk>
Signed-off-by: Chris Mason <clm@fb.com>
2015-06-12 13:20:38 -07:00
Russell King
9ce93bdda7 ARM: fix new BSYM() usage introduced via for-arm-soc branch
Commit 32e55a777f ("ARM: 8389/1: Add cpu_resume_arm() for firmwares
that resume in ARM state") needed to introduce a new usage of BSYM()
to fix a problem with a previous patch.  This in turn causes a conflict
with the "bsym" branch which removes this symbol, replacing it with a
'badr' assembly macro.  Fix this up.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-06-12 21:19:35 +01:00
Russell King
a9dd3865dd Merge branch 'for-arm-soc' into for-next 2015-06-12 21:18:59 +01:00
Russell King
27a513ca86 Merge branch 'devel-stable' into for-next
Conflicts:
	arch/arm/kernel/perf_event_cpu.c
2015-06-12 21:18:57 +01:00
Stefan Agner
970d96f9a8 ARM: 8383/1: nommu: avoid deprecated source register on mov
In Thumb2 mode, the stack register r13 is deprecated if the
destination register is the program counter (r15). Similar to
head.S, head-nommu.S uses r13 to store the return address used
after configuring the CPU's CP15 register. However, since we do
not enable a MMU, there will be no address switch and it is
possible to use branch with link instruction to call
__after_proc_init.

Avoid using r13 completely by using bl to call __after_proc_init
and get rid of __secondary_switched.

Beside removing unnecessary complexity, this also fixes a
compiler warning when compiling a !MMU kernel:
Warning: Use of r13 as a source register is deprecated when r15
is the destination register.

Tested-?by: Maxime Coquelin <mcoquelin.stm32@gmail.com>

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-06-12 21:18:48 +01:00
Russell King
05c9ca8843 Merge branch 'bsym' into for-next
Conflicts:
	arch/arm/kernel/head.S
2015-06-12 21:18:38 +01:00
Russell King
c62af70ff3 Merge branch 'sa1100' into for-next 2015-06-12 21:18:13 +01:00
Russell King
9de44aa4dc Merge branches 'arnd-fixes', 'clk', 'misc', 'v7' and 'fixes' into for-next 2015-06-12 21:18:08 +01:00
Russell King
2678bb9fa1 ARM: fix EFM32 build breakage caused by cpu_resume_arm
Fix:
arch/arm/kernel/sleep.S:121: Error: selected processor does not support ARM opcodes
arch/arm/kernel/sleep.S:123: Error: attempt to use an ARM instruction on a Thumb-only processor -- `adr r9,1f+1'
arch/arm/kernel/sleep.S:124: Error: attempt to use an ARM instruction on a Thumb-only processor -- `bx r9'

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-06-12 21:17:37 +01:00
Stephen Boyd
32e55a777f ARM: 8389/1: Add cpu_resume_arm() for firmwares that resume in ARM state
Some platforms always enter the kernel in the ARM state even if
the kernel is compiled for THUMB2. Add a small wrapper on top of
cpu_resume() that switches into THUMB2 state.

This provides the functionality to fix a problem reported by Kevin
Hilman on next-20150601 where the ifc6410 fails to boot a THUMB2
kernel because the platform's firmware always enters the kernel in
ARM mode from deep idle states.

(rmk: tweaked to work without BSYM->badr changes.)

Reported-by: Kevin Hilman <khilman@linaro.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Lina Iyer <lina.iyer@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-06-12 21:17:17 +01:00
Tomi Valkeinen
6646dfd029 drm: omapdrm: merge omap_crtc_flush and omap_crtc_atomic_flush
omap_crtc_atomic_flush() is the only user of omap_crtc_flush(), so just
move the code from omap_crtc_flush() to omap_crtc_atomic_flush().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-06-12 22:52:52 +03:00
Tomi Valkeinen
f524ab7c07 drm: omapdrm: add lock for fb pinning
Before atomic modesetting omap_framebuffer_pin() and
omap_framebuffer_unpin() were always called with modesetting locks
taken. With atomic modesetting support this is no longer the case, and
we need locking to protect the pin_count and the paddr, as multiple
threads may pin the same fb concurrently.

This patch adds a mutex to struct omap_framebuffer, and uses it in
omap_framebuffer_pin() and omap_framebuffer_unpin().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-06-12 22:52:51 +03:00
Tomi Valkeinen
794a65ffba drm: omapdrm: if omap_plane_atomic_update fails, disable plane
omap_plane_atomic_update() calls dispc_ovl_setup(), which can fail (but
shouldn't). To make the code a bit more robust, make sure the plane gets
disabled if dispc_ovl_setup() fails, as otherwise we might get illegal
HW configuration leading to error interrupts.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2015-06-12 22:52:51 +03:00