Both the cache flush state machine and the SCSI midlayer want to submit
requests from irq context, and the current per-request requeue_work
unfortunately causes corruption due to sharing with the csd field for
flushes. Replace them with a per-request_queue list of requests to
be requeued.
Based on an earlier test by Ming Lei.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Ming Lei <tom.leiming@gmail.com>
Tested-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Adds support for registering the alias clocks, boot time clock-enable list
and disabling autoidle of clocks.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
OMAP2430 I2CHS modules require specific hardware ops to be used, so added
a new compatible string for this.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
OMAP2 has slightly different DPLL compared to later OMAP generations.
This patch adds support for the ti,omap2-dpll-core-clock and also adds
the bindings documentation.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
With the recommended twl4030 configuration added, we can now add
board specific changes as modifications to the recommended
configuration.
Note that the data is private to this driver, and the data must
always have a NULL resource in the sentinel.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The twl4030 PMIC needs to be configured properly for things like
warm reset and deeper idle states so the PMIC manages the regulators
properly based on the hardware triggers from the SoC. Earlier
we have configured twl4030 using platform data, but we want to
do it for device tree based booting also.
In some cases configuring twl4030 is needed for things to work.
For example, when rebooting an OMAP3530 at 125 MHz, it hangs.
With this patch, TWL4030 will be reset when a warm reset occures,
and OMAP3530 does not hang on reboot.
Let's add device tree support and configure things for warm reset
as the default when compatible = "ti,twl4030-power". More
complicated configurations can be added to the driver based on
other compatible flags.
Note we now also make the pdata const like it should be.
This allows use it for match->data with the device tree
related functions.
Based on earlier patch by Matthias Brugger <matthias.bgg@gmail.com>
and Lesly A M <leslyam@ti.com>.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Fixes warning:
In file included from drivers/mtd/lpddr/qinfo_probe.c:31:0:
include/linux/mtd/pfow.h: In function ‘send_pfow_command’:
include/linux/mtd/pfow.h:104:6: warning: variable ‘chipnum’ set but not used [-Wunused-but-set-variable]
int chipnum;
^
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Add support for shared PCI IRQs to mcb and mcb-pci.
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@men.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Right now we export two ways of completing a request:
1) blk_mq_complete_request(). This uses an IPI (if needed) and
completes through q->softirq_done_fn(). It also works with
timeouts.
2) blk_mq_end_io(). This completes inline, and ignores any timeout
state of the request.
Let blk_mq_complete_request() handle non-softirq_done_fn completions
as well, by just completing inline. If a driver has enough completion
ports to place completions correctly, it need not define a
mq_ops->complete() and we can avoid an indirect function call by
doing the completion inline.
Signed-off-by: Jens Axboe <axboe@fb.com>
This patch creates a separate instance of the usb_address0 mutex for each USB
bus, and attaches it to the usb_bus device struct. This allows devices on
separate buses to be enumerated in parallel; saving time.
In the current code, there is a single, global instance of the usb_address0
mutex which is used for all devices on all buses. This isn't completely
necessary, as this mutex is only needed to prevent address0 collisions for
devices on the *same* bus (usb 2.0 spec, sec 4.6.1). This superfluous coverage
can cause additional delay in system resume on systems with multiple hosts
(up to several seconds depending on what devices are attached).
Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The PCI user-space config accessors pci_user_{read,write}_config_*() return
negative error numbers, which were introduced by commit 34e3207205
("PCI: handle positive error codes"). That patch converted all positive
error numbers from platform-specific PCI config accessors to -EINVAL, which
means the callers don't know anything about the specific cause of the
failure.
The patch fixes the issue by converting the positive PCIBIOS_* error values
to generic negative error numbers with pcibios_err_to_errno().
[bhelgaas: changelog]
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Greg Thelen <gthelen@google.com>
This patch adds support for the PLX USB3380 and USB3382.
This driver is based on the driver from the manufacturer.
Since USB338X is register compatible with NET2280, I thought that it
would be better to include this hardware into net2280 driver.
Manufacturer's driver only supported the USB33X, did not follow the
Kernel Style and contain some trivial errors. This patch has tried to
address this issues.
This patch has only been tested on USB338x hardware, but the merge has
been done trying to not affect the behaviour of NET2280.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Tested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pcibios_penalize_isa_irq() is only implemented by x86 now, and legacy ISA
is not used by some architectures. Make pcibios_penalize_isa_irq() a
__weak function to simplify the code. This removes the need for new
platforms to add stub implementations of pcibios_penalize_isa_irq().
[bhelgaas: changelog, comments]
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
There is still one residue of sysfs remaining: the sb_magic
SYSFS_MAGIC. However this should be kernfs user specific,
so this patch moves it out. Kerrnfs user should specify their
magic number while mouting.
Signed-off-by: Jianyu Zhan <nasa4836@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We are getting randconfig build errors on device drivers with
tristate Kconfig option if they are using custom initcall
levels. Rather than add ifdeffery into the drivers, let's add
the missing initcall_sync variants.
As the comment in init.h has kept people from updating the
list of initcalls that can be just module_init when the driver
is loaded as a loadable module, let's also update the comment
a bit to describe valid use cases custom initcall levels.
While most drivers should nowadays use just regular module_init
because of the deferred probe, we do have quite a few custom
initcall levels left that we cannot remove until tested properly.
There are also still few valid cases where a custom initcall
level might make sense that I'm aware of.
For example a bus snooping driver can provide information about
invalid bus access and is handy loader early when built in. But
there's no hard dependency to have it necessarily built in and
a loadable module is a valid option.
Another example is a driver implementing a Linux framework like
pinctrl framework. That driver may be needed early on some
platforms because of legacy reasons, while it can be just a
regular module_init on most platforms.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull slave-dmaengine fixes from Vinod Koul:
"We have three small fixes.
First one from Andy reverts the devm_request irq as we need to ensure
the tasklet is killed after irq is freed, so we need to do free irq in
our code. Other two from Arnd are fixing the compilation issue in
omap and sa11x0 drivers with ARM randconfigs"
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: sa11x0: remove broken #ifdef
dmaengine: omap: hide filter_fn for built-in drivers
dmaengine: dw: went back to plain {request,free}_irq() calls
This increases the amount of bundling to reduce the number of packets
sent. For the one wire use there can be multiple struct
w1_netlink_cmd in a struct w1_netlink_msg and multiple of those in
struct cn_msg, and with this change multiple of those in a struct
nlmsghdr, and at each level the len identifies there being multiple of
the next.
Signed-off-by: David Fries <David@Fries.net>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dev_set_drvdata and dev_get_drvdata are now simple enough again that
we can inline them as they used to be before commit b40284378.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dev_set_drvdata can no longer fail, so it could return void.
All callers have hopefully been updated to no longer check for the
return value.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch adds support for the Analog Devices ADAU1381 and ADAU1781 audio
CODECs. The device is a low-power, 24-bit stereo audio CODEC with multiple
analog inputs and outputs, two digital microphone inputs and an I2S interface.
The device can be controlled either using I2C or SPI. The main difference
between the two variants is that the ADAU1781 has a freely programmable SigmaDSP
processor, while the ADAU1381 has a fixed function wind noise reduction filter.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
This patch adds support for the Analog Devices ADAU1361 and ADAU1761 CODECs.
The device is a a low-power, 24-bit stereo audio CODEC with multiple analog
input and outputs, one digital microphone input and an I2S interface. The device
can be controlled either via I2C or SPI. The main difference between the two
variants is that the ADAU1761 has a built-in SigmaDSP, while the ADAU1361 has
not.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
The ADAU1X61 and ADAU1X81 are very similar in the digital domain, but are quite
different in the analog domain. This patch adds support for the common parts of
the ADAU1X61 and ADAU1X81 CODECs.
The patch also restores some of the alphabetical order in the Makfile and
Kconfig.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Having to allocate memory as part of dev_set_drvdata() is a problem
because that memory may never get freed if the device itself is not
created. So move driver_data back to struct device.
This is a partial revert of commit b4028437.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The patch stores iova, pd and size during mr creation and after UMRs
that modify them. It removes the unused access flags field.
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Add a helper function to check a device's header type for PCI bridge or
CardBus bridge.
Requires: 326c1cdae7 PCI: Rename pci_is_bridge() to pci_has_subordinate()
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Drivers currently have to figure this out on their own, and they
are missing information to do it properly. The ones that did
attempt to do it, do it wrong.
So just pass in the suggested node directly to the alloc
function.
Signed-off-by: Jens Axboe <axboe@fb.com>
- irq-gic
- use a mask field
- irq-armada-370-xp
- move the DT binding docs to the irqchip directory
- irq-brcmstb-l2
- new driver for Broadcom Set Top Box Level-2
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Merge tag 'irqchip-3.16' of git://git.infradead.org/users/jcooper/linux into irq/core
irqchip core changes for v3.16 collected by Jason Cooper:
- irq-gic: Use a mask field
- irq-armada-370-xp: Move the DT binding docs to the irqchip directory
- irq-brcmstb-l2: New driver for Broadcom Set Top Box Level-2
Notify a PCI device driver when its device's access is about to be disabled
for an impending reset attempt, then after the attempt completes and device
access is restored. The notification is via the pci_error_handlers
interface.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
There are two different variants of the tps658640 with slightly
different feature sets.
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Merge tag 'regulator-tps658640' into ib-from-regulator-3.16
regulator: Support newer revisions of tps658640
There are two different variants of the tps658640 with slightly
different feature sets.
This pull request contains the following changes:
* Laurent Pinchart did a lot of modifications to prepare the DT
support. These modifications include a lot of cleanup (structure
renaming, preparation to support multiple channel, kzalloc usage,
...) and then finishes to drop the old code to the new one.
* Jingoo Han removed the dev_err when an allocation fails because this
error is already given by the mm subsystems.
* Matthew Leach added the ARM global timer with vexpress, enabled the
ARM global timer with the A5 and added the definition in the DT. He
also fixed a invalid check when looking for an usable ARM global
timer for A9
* Maxime Ripard added the support for AllWinner A31 for sun4i and made
the timer reset optional through the DT
* Stephen Boyd used the msm timer for the udelay
* Uwe Kleine-König fixed the non-standard 'compatible' binding for efm32
* Xiubo Li clarified the types for the clocksource_mmio_read* and
added a new Flextimer Module (FTM) with its bindings
* Yang Wei added the 'notrace' attribute to 'read_sched_clock' for the
dw_apb_timer
By reading the touchscreen configuration from the settings that the
maXTouch chip is actually using, we can remove some platform data.
The matrix size is not used for anything, and results in some rather
confusing code to re-read it because it may change when configuration
is downloaded, so don't print it out.
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
Acked-by: Benson Leung <bleung@chromium.org>
Acked-by: Yufeng Shen <miletus@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* dma-api:
iommu/exynos: Remove unnecessary "&" from function pointers
DMA-API: Update dma_pool_create ()and dma_pool_alloc() descriptions
DMA-API: Fix duplicated word in DMA-API-HOWTO.txt
DMA-API: Capitalize "CPU" consistently
sh/PCI: Pass GAPSPCI_DMA_BASE CPU & bus address to dma_declare_coherent_memory()
DMA-API: Change dma_declare_coherent_memory() CPU address to phys_addr_t
DMA-API: Clarify physical/bus address distinction
* pci/virtualization:
PCI: Mark RTL8110SC INTx masking as broken
* pci/msi:
PCI/MSI: Remove pci_enable_msi_block()
* pci/misc:
PCI: Remove pcibios_add_platform_entries()
s390/pci: use pdev->dev.groups for attribute creation
PCI: Move Open Firmware devspec attribute to PCI common code
* pci/resource:
PCI: Add resource allocation comments
PCI: Simplify __pci_assign_resource() coding style
PCI: Change pbus_size_mem() return values to be more conventional
PCI: Restrict 64-bit prefetchable bridge windows to 64-bit resources
PCI: Support BAR sizes up to 8GB
resources: Clarify sanity check message
PCI: Don't add disabled subtractive decode bus resources
PCI: Don't print anything while decoding is disabled
PCI: Don't set BAR to zero if dma_addr_t is too small
PCI: Don't convert BAR address to resource if dma_addr_t is too small
PCI: Reject BAR above 4GB if dma_addr_t is too small
PCI: Fail safely if we can't handle BARs larger than 4GB
x86/gart: Tidy messages and add bridge device info
x86/gart: Replace printk() with pr_info()
x86/PCI: Move pcibios_assign_resources() annotation to definition
x86/PCI: Mark ATI SBx00 HPET BAR as IORESOURCE_PCI_FIXED
x86/PCI: Don't try to move IORESOURCE_PCI_FIXED resources
x86/PCI: Fix Broadcom CNB20LE unintended sign extension
Some firmware drivers, ie acpi-video want to get themselves out of the
way (in some cases) when their also is a raw backlight device available.
Due to module loading ordering being unknown, acpi-video cannot be certain
that the backlight_device_registered(BACKLIGHT_RAW) it does for this is
the final verdict wrt there being a BACKLIGHT_RAW device.
By adding notification acpi-video can listen for backlight devices showing
up after it has loaded, and unregister its backlight device if desired.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
information available within the IP instead
of reading it from platform data or DT. Some
other useful clean-ups are included too.
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Merge tag 'davinci-for-v3.16/edma' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/drivers
Merge "DaVinci EDMA clean-up for v3.16" from Sekhar Nori:
This series makes edma use configuration information available within
the IP instead of reading it from platform data or DT. Some other useful
clean-ups are included too.
* tag 'davinci-for-v3.16/edma' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci: (34 commits)
ARM: edma: Remove redundant/unused parameters from edma_soc_info
ARM: davinci: Remove redundant/unused parameters for edma
ARM: dts: am4372: Remove obsolete properties from edma node
ARM: dts: am33xx: Remove obsolete properties from edma node
dt/bindings: ti,edma: Remove redundant properties from documentation
ARM: edma: Get IP configuration from HW (number of channels, tc, etc)
ARM: edma: Save number of regions from pdata to struct edma
ARM: edma: Remove num_cc member from struct edma
ARM: edma: Remove queue_tc_mapping data from edma_soc_info
ARM: davinci: Remove eDMA3 queue_tc_mapping data from edma_soc_info
ARM: edma: Do not change TC -> Queue mapping, leave it to default.
ARM: edma: Take the number of tc from edma_soc_info (pdata)
ARM: edma: No need to clean the pdata in edma_of_parse_dt()
ARM: edma: Clean up and simplify the code around irq request
dmaengine: edma: update DMA memcpy to use new param element
dmaengine: edma: Document variables used for residue accounting
dmaengine: edma: Provide granular accounting
dmaengine: edma: Make reading the position of active channels work
dmaengine: edma: Store transfer data in edma_desc and edma_pset
dmaengine: edma: Create private pset struct
...
Signed-off-by: Olof Johansson <olof@lixom.net>
Merge a fix from Philipp Zabel:
This patch fixes an erroneous revert that slipped in with commit
b424080a9e reset: Add optional resets and
stubs.
* 'reset/fixes' of git://git.pengutronix.de/git/pza/linux:
reset: Add of_reset_control_get to reset.h
Signed-off-by: Olof Johansson <olof@lixom.net>
The TPS658640 has a different set of output voltage for most LDO and
the RTC LDO isn't settable. This chip also report 2 different version
ID, as the datasheet doesn't list the possible values the second ID
has simply been named TPS658640v2.
Signed-off-by: Alban Bedel <alban.bedel@avionic-design.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Commit 1a699476e2 ("ACPI / hotplug / PCI: Hotplug notifications
from acpi_bus_notify()") added debug messages for a few common
events. These debug messages are unconditionally enabled if
CONFIG_DYNAMIC_DEBUG is defined, contrary to the documented
meaning, making the ACPI system spew lots of unwanted noise on
any kernel with dynamic debugging.
The bug was introduced by commit fbfddae696 ("ACPI: Add
acpi_handle_<level>() interfaces"), which added the
CONFIG_DYNAMIC_DEBUG dependency without respecting its meaning.
Fix by adding real support for dynamic_debug.
Fixes: fbfddae696 ("ACPI: Add acpi_handle_<level>() interfaces")
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
In post commit, a quirk of this firmware about transactions is reported.
This commit apply a workaround for this quirk.
They often fail transactions due to gap_count mismatch. This state is changed
by generating bus reset.
The fw_schedule_bus_reset() is an exported symbol in firewire-core. But there
are no header for public. This commit moves its prototype from
drivers/firewire/core.h to include/linux/firewire.h.
This mismatch still affects bus management before generating this bus reset.
It still takes a time to call driver's probe() because transactions are still
often failed.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
After instruction write into xol area, on ARM V7
architecture code need to flush dcache and icache to sync
them up for given set of addresses. Having just
'flush_dcache_page(page)' call is not enough - it is
possible to have stale instruction sitting in icache
for given xol area slot address.
Introduce arch_uprobe_ixol_copy weak function
that by default calls uprobes copy_to_page function and
than flush_dcache_page function and on ARM define new one
that handles xol slot copy in ARM specific way
flush_uprobe_xol_access function shares/reuses implementation
with/of flush_ptrace_access function and takes care of writing
instruction to user land address space on given variety of
different cache types on ARM CPUs. Because
flush_uprobe_xol_access does not have vma around
flush_ptrace_access was split into two parts. First that
retrieves set of condition from vma and common that receives
those conditions as flags.
Note ARM cache flush function need kernel address
through which instruction write happened, so instead
of using uprobes copy_to_page function changed
code to explicitly map page and do memcpy.
Note arch_uprobe_copy_ixol function, in similar way as
copy_to_user_page function, has preempt_disable/preempt_enable.
Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: David A. Long <dave.long@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This patch adds Qualcomm amba vendor Id to the list. This ID is used in mmci driver. The ID selected in same lines like 0x41 is "A" for ARM, 0x51 is "Q" for Qualcomm.
As there are no physical register on Qcom SOC for amba vendor id, this is a fake ID assigned based on "Q" prefix from Qualcomm.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This patch add resource-managed function for devfreq opp as following
functions. The devm_devfreq_register_opp_notifier() manages automatically
the registration of devfreq opp using device resource management.
- devm_devfreq_register_opp_notifier
- devm_devfreq_unregister_opp_notifier()
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
