mvneta_deinit() can be called from the ->probe() hook in the error
path, so it shouldn't be marked as __devexit. It fixes the following
section mismatch warning:
WARNING: vmlinux.o(.devinit.text+0x239c): Section mismatch in reference
from the function mvneta_probe() to the function .devexit.text:mvneta_deinit()
The function __devinit mvneta_probe() references
a function __devexit mvneta_deinit().
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Now that the Armada 370/XP platform has gained proper integration with
the clock framework, we add clk support in the Marvell Armada 370/XP
Ethernet driver.
Since the existing Device Tree binding that exposes a
'clock-frequency' property has never been exposed in any stable kernel
release, we take the freedom of removing this property to replace it
with the standard 'clocks' clock pointer property.
The Device Tree binding documentation is updated accordingly.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
As reported by checkpatch, the multiline comments for net/ and
drivers/net/ have a slightly different format than the one used in the
rest of the kernel, so we adjust our multiline comments accordingly.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
As reported by checkpatch, the multiline comments for net/ and
drivers/net/ have a slightly different format than the one used in the
rest of the kernel, so we adjust our multiline comment accordingly.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
As suggested by checkpatch, using <linux/delay.h> instead of
<asm/delay.h> is appropriate.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The dmatest module for DMA engines calls
device_control(dtc->chan, DMA_TERMINATE_ALL, 0);
after completing the tests. The documentation in
include/linux/dmaengine.h suggests this function is optional and
dma_async_device_register() also does not BUG_ON() when not passed a
function. However, dmatest is not the only code in the kernel
unconditionally calling device_control. So add an implementation
indicating all operations are not implemented.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The ->probe() and ->remove() functions were missing the usual
__devinit and __devexit qualifiers.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This patch finally adds a Device Tree binding to the mv_xor
driver. Thanks to the previous cleanup patches, the Device Tree
binding is relatively simply: one DT node per XOR engine, with
sub-nodes for each XOR channel of the XOR engine. The binding
obviously comes with the necessary documentation.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: devicetree-discuss@lists.ozlabs.org
Even though the driver cannot be unloaded at the moment, it is still
good to properly free the IRQ handlers in the channel removal function.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The pool_size is always PAGE_SIZE, and since it is a software
configuration paramter (and not a hardware description parameter), we
cannot make it part of the Device Tree binding, so we'd better remove
it from the platform_data as well.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
There is no need for the platform_data to give this ID, it is simply
the channel number, so we can compute it inside the driver when
registering the channels.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Now that mv_xor_device is no longer used to designate the per-channel
DMA devices, use it know to designate the XOR engine themselves
(currently composed of two XOR channels).
So, now we have the nice organization where:
- mv_xor_device represents each XOR engine in the system
- mv_xor_chan represents each XOR channel of a given XOR engine
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Even though the DMA engine infrastructure has support for multiple
channels per device, the mv_xor driver registers one DMA engine device
for each channel, because the mv_xor channels inside the same XOR
engine have different capabilities, and the DMA engine infrastructure
only allows to express capabilities at the DMA engine device level.
The mv_xor driver has therefore been registering one DMA engine device
and one DMA engine channel for each XOR channel since its introduction
in the kernel. However, it kept two separate internal structures,
mv_xor_device and mv_xor_channel, which didn't make a lot of sense
since there was a 1:1 mapping between those structures.
This patch gets rid of this duplication, and merges everything into
the mv_xor_chan structure.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
In preparation for the removal of the mv_xor_device structure, we
directly pass mv_xor_chan pointers to the self-test functions included
in the driver. These functions were anyway selecting the first (and
only channel) available in each DMA device, so the behaviour is
unchanged.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The mv_xor_device structure embeds a 'struct dma_device', which is
named 'common', a not very meaningful name. Rename it to 'dmadev',
which will help avoid confusions later as we merge the mv_xor_device
and mv_xor_chan structures together.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The mv_xor_chan structure embeds a 'struct dma_chan', which is named
'common', a not very meaningful name. Rename it to 'dmachan', which
will help avoid confusions later as we merge the mv_xor_device and
mv_xor_chan structures together.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
It was only used in places where we could get the 'struct device *'
pointer through a different way.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
In many place, we need to get the 'struct device *' pointer from a
'struct mv_chan *', so we add a helper that makes this a bit
easier. It will also help reducing the change noise in further
patches.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
In mv_xor_memcpy_self_test() and mv_xor_xor_self_test(), all DMA
functions are called by passing dma_chan->device->dev as the 'device
*', except the calls to dma_sync_single_for_cpu() which uselessly goes
through mv_chan->device->pdev->dev.
Simplify this by using dma_chan->device->dev direclty in
dma_sync_single_for_cpu() calls.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The to_mv_xor_device() macro is not being used by the driver, so we
can get rid of it.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The 'shared' word no longer makes sense in a number of places as we
renamed the 'mv_xor_shared' driver to 'mv_xor'.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Since we got rid of the per-XOR channel 'mv_xor' driver, now the
per-XOR engine driver that used to be called 'mv_xor_shared' can
simply be named 'mv_xor'.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
'struct mv_xor_shared_platform_data' used to be the platform_data
structure for the 'mv_xor_shared', but this driver is going to be
renamed simply 'mv_xor', so also rename its platform_data structure
accordingly.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
mv_xor_platform_data used to be the platform_data structure associated
to the 'mv_xor' driver. This driver no longer exists, and this data
structure really contains the properties of each XOR channel part of a
given XOR engine. Therefore 'struct mv_xor_channel_data' is a more
appropriate name.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Now that XOR channels are directly registered by the main
'mv_xor_shared' device ->probe() function and all users of the
'mv_xor' device have been removed, we can get rid of the latter.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Extend the XOR engine driver (currently called "mv_xor_shared") so
that XOR channels can be passed in the platform_data structure, and be
registered from there.
This will allow the users of the driver to be converted to the single
platform_driver variant of the mv_xor driver.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Instead of doing the initialization/cleanup of the XOR channels
directly in the ->probe() and ->remove() hooks, we create separate
utility functions mv_xor_channel_add() and mv_xor_channel_remove().
This will allow to easily introduce in a future patch a different way
of registering XOR channels: instead of having one platform_device per
channel, we'll trigger the registration of all XOR channels of a given
XOR engine directly from the XOR engine ->probe() function.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The driver currently pokes into the platform_data structure during its
normal operation to get the pool_size value. Poking into the
platform_data structure is not nice when moving to the Device Tree, so
this commit adds a new pool_size field in the mv_xor_device structure,
which gets initialized at ->probe() time. The driver then uses this
field instead of the platform_data.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The usage of dev_printk() is deprecated, and the dev_err(), dev_info()
and dev_notice() functions should be used instead.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This driver allows to provide DT clocks for clock gates found on
Marvell Dove and Kirkwood SoCs. The clock gates are referenced by
the phandle index of the corresponding bit in the clock gating control
register to ease lookup in the datasheet.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
This driver allows to provide DT clocks for core clocks found on
Marvell Kirkwood, Dove & 370/XP SoCs. The core clock frequencies and
ratios are determined by decoding the Sample-At-Reset registers.
Although technically correct, using a divider of 0 will lead to
div_by_zero panic. Let's use a ratio of 0/1 instead to fail later
with a zero clock.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by Gregory CLEMENT <gregory.clement@free-electrons.com>
Merge misc fixes from Andrew Morton.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (12 patches)
revert "mm: fix-up zone present pages"
tmpfs: change final i_blocks BUG to WARNING
tmpfs: fix shmem_getpage_gfp() VM_BUG_ON
mm: highmem: don't treat PKMAP_ADDR(LAST_PKMAP) as a highmem address
mm: revert "mm: vmscan: scale number of pages reclaimed by reclaim/compaction based on failures"
rapidio: fix kernel-doc warnings
swapfile: fix name leak in swapoff
memcg: fix hotplugged memory zone oops
mips, arc: fix build failure
memcg: oom: fix totalpages calculation for memory.swappiness==0
mm: fix build warning for uninitialized value
mm: add anon_vma_lock to validate_mm()
Fix rapidio kernel-doc warnings:
Warning(drivers/rapidio/rio.c:415): No description found for parameter 'local'
Warning(drivers/rapidio/rio.c:415): Excess function parameter 'lstart' description in 'rio_map_inb_region'
Warning(include/linux/rio.h:290): No description found for parameter 'switches'
Warning(include/linux/rio.h:290): No description found for parameter 'destid_table'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Matt Porter <mporter@kernel.crashing.org>
Acked-by: Alexandre Bounine <alexandre.bounine@idt.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull networking updates from David Miller:
1) tx_filtered/ps_tx_buf queues need to be accessed with the SKB queue
lock, from Arik Nemtsov.
2) Don't call 802.11 driver's filter configure method until it's
actually open, from Felix Fietkau.
3) Use ieee80211_free_txskb otherwise we leak control information.
From Johannes Berg.
4) Fix memory leak in bluetooth UUID removal,f rom Johan Hedberg.
5) The shift mask trick doesn't work properly when 'optname' is out of
range in do_ip_setsockopt(). Use a straightforward switch statement
instead, the compiler emits essentially the same code but without
the missing range check. From Xi Wang.
6) Fix when we call tcp_replace_ts_recent() otherwise we can
erroneously accept a too-high tsval. From Eric Dumazet.
7) VXLAN bug fixes, mostly to do with VLAN header length handling, from
Alexander Duyck.
8) Missing return value initialization for IPV6_MINHOPCOUNT socket
option handling. From Hannes Frederic.
9) Fix regression in tasklet handling in jme/ksz884x/xilinx drivers,
from Xiaotian Feng.
10) At smsc911x driver init time, we don't know if the chip is in word
swap mode or not. However we do need to wait for the control
register's ready bit to be set before we program any other part of
the chip. Adjust the wait loop to account for this. From Kamlakant
Patel.
11) Revert erroneous MDIO bus unregister change to mdio-bitbang.c
12) Fix memory leak in /proc/net/sctp/, from Tommi Rantala.
13) tilegx driver registers IRQ with NULL name, oops, from Simon Marchi.
14) TCP metrics hash table kzalloc() based allocation can fail, back
down to using vmalloc() if it does. From Eric Dumazet.
15) Fix packet steering out-of-order delivery regression, from Tom
Herbert.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (40 commits)
net-rps: Fix brokeness causing OOO packets
tcp: handle tcp_net_metrics_init() order-5 memory allocation failures
batman-adv: process broadcast packets in BLA earlier
batman-adv: don't add TEMP clients belonging to other backbone nodes
batman-adv: correctly pass the client flag on tt_response
batman-adv: fix tt_global_entries flags update
tilegx: request_irq with a non-null device name
net: correct check in dev_addr_del()
tcp: fix retransmission in repair mode
sctp: fix /proc/net/sctp/ memory leak
Revert "drivers/net/phy/mdio-bitbang.c: Call mdiobus_unregister before mdiobus_free"
net/smsc911x: Fix ready check in cases where WORD_SWAP is needed
drivers/net: fix tasklet misuse issue
ipv4/ip_vti.c: VTI fix post-decryption forwarding
brcmfmac: fix typo in CONFIG_BRCMISCAN
vxlan: Update hard_header_len based on lowerdev when instantiating VXLAN
vxlan: fix a typo.
ipv6: setsockopt(IPIPPROTO_IPV6, IPV6_MINHOPCOUNT) forgot to set return value
doc/net: Fix typo in netdev-features.txt
vxlan: Fix error that was resulting in VXLAN MTU size being 10 bytes too large
...
Pull ARM SoC fixes from Olof Johansson:
"We've been sitting on this longer than we meant to due to travel and
other activities, but the number of patches is luckily not that high.
Biggest changes are from a batch of OMAP bugfixes, but there are a few
for the broader set of SoCs too (bcm2835, pxa, highbank, tegra, at91
and i.MX).
The OMAP patches contain some fixes for MUSB/PHY on omap4 which ends
up being a bit on the large side but needed for legacy (non-DT)
platforms. Beyond that there are a handful of hwmod/pm changes.
So, fairly noncontroversial stuff all in all, and as usual around this
time the fixes are well targeted at specific problems."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: imx: ehci: fix host power mask bit
ARM i.MX: fix error-valued pointer dereference in clk_register_gate2()
ARM: at91/usbh: fix overcurrent gpio setup
ARM: at91/AT91SAM9G45: fix crypto peripherals irq issue due to sparse irq support
ARM: boot: Fix usage of kecho
ARM: OMAP: ocp2scp: create omap device for ocp2scp
ARM: OMAP4: add _dev_attr_ to ocp2scp for representing usb_phy
drivers: bus: ocp2scp: add pdata support
irqchip: irq-bcm2835: Add terminating entry for of_device_id table
ARM: highbank: retry wfi on reset request
ARM: OMAP4: PM: fix regulator name for VDD_MPU
ARM: OMAP4: hwmod data: do not enable or reset the McPDM during kernel init
ARM: OMAP2+: hwmod: add flag to prevent hwmod code from touching IP block during init
ARM: dt: tegra: fix length of pad control and mux registers
ARM: OMAP: hwmod: wait for sysreset complete after enabling hwmod
ARM: OMAP2+: clockdomain: Fix OMAP4 ISS clk domain to support only SWSUP
ARM: pxa/spitz_pm: Fix hang when resuming from STR
ARM: pxa: hx4700: Fix backlight PWM device number
ARM: OMAP2+: PM: add missing newline to VC warning message
Pull HID fix from Jiri Kosina:
"This has a build fix for architectures where memcmp() is macro, from
Jiri Slaby"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: microsoft: do not use compound literal - fix build
Pull USB fixes from Greg Kroah-Hartman:
"Here are some USB fixes for the 3.7 tree.
Nothing huge here, just a number of tiny bugfixes resolving issues
that have been found, and two reverts of patches that were found to
have caused problems.
All of these have been in linux-next already.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
Revert "USB/host: Cleanup unneccessary irq disable code"
USB: option: add Alcatel X220/X500D USB IDs
USB: option: add Novatel E362 and Dell Wireless 5800 USB IDs
USB: keyspan: fix typo causing GPF on open
USB: fix build with XEN and EARLY_PRINTK_DBGP enabled but USB_SUPPORT disabled
USB: usb_wwan: fix bulk-urb allocation
usb: otg: Fix build errors if USB_MUSB_OMAP2PLUS is selected as module
usb: musb: ux500: fix 'musbid' undeclared error in ux500_remove()
Revert "usb: musb: use DMA mode 1 whenever possible"
Pull TTY fixes from Greg Kroah-Hartman:
"Here are two TTY driver fixes for 3.7-rc5.
They resolve a bug in the hvc driver that has been reported, and fix a
problem with the list of device ids in the max310x serial driver.
Both have been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'tty-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: serial: max310x: Add terminating entry for spi_device_id table
TTY: hvc_console, fix port reference count going to zero prematurely
Pull staging tree fix from Greg Kroah-Hartman:
"Here is a single patch, a revert of an android driver patch, that
resolves a bug that has been reported in the Android alarm driver.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'staging-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
Revert "Staging: Android alarm: IOCTL command encoding fix"
From Sascha Hauer <s.hauer@pengutronix.de>:
ARM i.MX fixes for 3.7-rc
* tag 'imx-fixes-rc' of git://git.pengutronix.de/git/imx/linux-2.6:
ARM: imx: ehci: fix host power mask bit
ARM i.MX: fix error-valued pointer dereference in clk_register_gate2()
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Pull s390 patches from Martin Schwidefsky:
"Some more bug fixes and a config change.
The signal bug is nasty, if the clock_gettime vdso function is
interrupted by a signal while in access-register-mode we end up with
an endless signal loop until the signal stack is full. The config
change is for aligned struct pages, gives us 8% improvement with
hackbench."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/3215: fix tty close handling
s390/mm: have 16 byte aligned struct pages
s390/gup: fix access_ok() usage in __get_user_pages_fast()
s390/gup: add missing TASK_SIZE check to get_user_pages_fast()
s390/topology: fix core id vs physical package id mix-up
s390/signal: set correct address space control
Pull drm fixes from Dave Airlie:
"All pretty normal: one TTM oops fix, one radeon, a few intel and a
vmwgfx fix."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/ttm: remove unneeded preempt_disable/enable
ttm: Clear the ttm page allocated from high memory zone correctly
vmwgfx: return an -EFAULT if copy_to_user() fails
drm/radeon: fix logic error in atombios_encoders.c
drm/i915: do not ignore eDP bpc settings from vbt
drm/i915/sdvo: clean up connectors on intel_sdvo_init() failures
drm/i915/crt: fix DPMS standby and suspend mode handling
