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In case mac80211 was requested to perform an HW restart, but the HW
restart has not started yet, there is no need to request another one.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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AX210 devices assume that the (DRAM) addresses of the rb_stts's for
the different queues are continuous.
So allocate the rb_stts's for all the Rx queues in one place.
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Commit d716ff71dd12 ("tracing: Remove taking of trace_types_lock in
pipe files") use the current tracer instead of the copy in
tracing_open_pipe(), but it forget to remove the freeing sentence in
the error path.
There's an error path that can call kfree(iter->trace) after the iter->trace
was assigned to tr->current_trace, which would be bad to free.
Link: http://lkml.kernel.org/r/1550060946-45984-1-git-send-email-yi.zhang@huawei.com
Cc: stable@vger.kernel.org
Fixes: d716ff71dd12 ("tracing: Remove taking of trace_types_lock in pipe files")
Signed-off-by: zhangyi (F) <yi.zhang@huawei.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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ath.git patches for 5.1. Major changes:
ath10k
* support WPA3 with WCN3990
* support for mac80211 airtime fairness based on transmit rate
estimation, the firmware needs to support WMI_SERVICE_PEER_STATS to
enable this
* report transmit airtime to mac80211 with firmwares having
WMI_SERVICE_REPORT_AIRTIME feature, this to have more accurate
airtime fairness based on real transmit time (instead of just
estimated from transmit rate)
* support Fine Timing Measurement (FTM) responder role
* add dynamic VLAN support with firmware having
WMI_SERVICE_PER_PACKET_SW_ENCRYPT
* switch to use SPDX license identifiers
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https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-5.1
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The start() callback is too late for this: NetworkManager would already
have seen the hardware, thinking 00:00:00:00:00:00 is its permanent
address.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Reviewed-by: Steve deRosier <derosier@cal-sierra.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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In order to be able to get a MAC address before we register the device
with ieee80211 we'll need to load the firmware way earlier.
There seems to be one problem with this: the device seems to start
with radio enabled and starts sending in frames right after the firmware
load finishes. Disable the radio as soon as possible.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Reviewed-by: Steve deRosier <derosier@cal-sierra.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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We'll need to talk to the firmware to get a hardware address before
device is registered with ieee80211 subsystem at the end of
lbtf_add_card(). Hooking the callbacks after that is too late.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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While experimenting with firmware loading I ended up in a state of
firmware reporting shared RAM address 0x04000001. It was causing:
[ 94.448015] Unable to handle kernel paging request at virtual address cd680001
due to reading out of the mapped memory.
This patch adds some basic validation to avoid kernel crashes due to the
unexpected firmware behavior.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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There is an uppercase 'N' that should be a lowercase 'n', fix this.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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This recently added macro provides more meaningful error messages thanks
to identifying a specific wiphy. It's especially important on systems
with few cards supported by the same (brcmfmac) driver.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here are a few last-minute fixes for 5.0.
The most significant one is the OF-node refcount fix for ASoC
simple-card, which could be triggered on many boards. Another fix for
ASoC core is for the error handling in topology, while others are
device-specific fixes for Samsung and HD-audio"
* tag 'sound-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: simple-card: fixup refcount_t underflow
ASoC: topology: free created components in tplg load error
ALSA: hda/realtek: Disable PC beep in passthrough on alc285
ALSA: hda/realtek - Headset microphone and internal speaker support for System76 oryp5
ASoC: samsung: i2s: Fix prescaler setting for the secondary DAI
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Some final pin control fixes (I hope) to round off the v5.0 pin
control development cycle.
Only driver fixes, one for stable:
- Meson8B fixup for the sdc pins
- Fix SDC tile position for Qualcomm QCS404"
* tag 'pinctrl-v5.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: meson: meson8b: fix the sdxc_a data 1..3 pins
pinctrl: qcom: qcs404: Correct SDC tile
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Two GPIO fixes for the v5.0 series:
- Per-instance irqchip on the MT7621
- Avoid direction setting using pin control on MMP2"
* tag 'gpio-v5.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: pxa: avoid attempting to set pin direction via pinctrl on MMP2
gpio: MT7621: use a per instance irq_chip structure
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Pull MTD fixes from Boris Brezillon:
- Don't add a digit to MTD-backed nvmem device names
- Make sure powernv flash names are unique
* tag 'mtd/fixes-for-5.0-rc8' of git://git.infradead.org/linux-mtd:
mtd: powernv_flash: Fix device registration error
mtd: Use mtd->name when registering nvmem device
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When the commit b6ced294fb61
("spi: pxa2xx: Switch to SPI core DMA mapping functionality")
switches to SPI core provided DMA helpers, it missed to setup maximum
supported DMA transfer length for the controller and thus users
mistakenly try to send more data than supported with the following
warning:
ili9341 spi-PRP0001:01: DMA disabled for transfer length 153600 greater than 65536
Setup maximum supported DMA transfer length in order to make users know
the limit.
Fixes: b6ced294fb61 ("spi: pxa2xx: Switch to SPI core DMA mapping functionality")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull keys fixes from James Morris:
- Handle quotas better, allowing full quota to be reached.
- Fix the creation of shortcuts in the assoc_array internal
representation when the index key needs to be an exact multiple of
the machine word size.
- Fix a dependency loop between the request_key contruction record and
the request_key authentication key. The construction record isn't
really necessary and can be dispensed with.
- Set the timestamp on a new key rather than leaving it as 0. This
would ordinarily be fine - provided the system clock is never set to
a time before 1970
* 'fixes-v5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
keys: Timestamp new keys
keys: Fix dependency loop between construction record and auth key
assoc_array: Fix shortcut creation
KEYS: allow reaching the keys quotas exactly
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Fixes the following sparse warning:
drivers/char/hw_random/optee-rng.c:265:35: warning:
symbol 'optee_rng_id_table' was not declared. Should it be static?
Fixes: 5fe8b1cc6a03 ("hwrng: add OP-TEE based rng driver")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The return from the call to tee_client_invoke_func can be a
negative error code however this is being assigned to an
unsigned variable 'ret' hence the check is always false.
Fix this by making 'ret' an int.
Detected by Coccinelle ("Unsigned expression compared with zero:
ret < 0")
Fixes: c3fa24af9244 ("tee: optee: add TEE bus device enumeration support")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The return from the call to tee_client_invoke_func can be a
negative error code however this is being assigned to an
unsigned variable 'ret' hence the check is always false.
Fix this by making 'ret' an int.
Detected by Coccinelle ("Unsigned expression compared with zero:
ret < 0")
Fixes: 5fe8b1cc6a03 ("hwrng: add OP-TEE based rng driver")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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During initialization, the host and super-speed power domains will
contain an ERR_PTR() encoded error code rather than being NULL. To
avoid a crash, use a !IS_ERR_OR_NULL() condition during cleanup.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Fixes: 6494a9ad86de ("usb: xhci: tegra: Add genpd support")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add check for valid ctx pointer and then only dereference ctx to
configure supp_nowait flag.
Fixes: 42bf4152d8a7 ("tee: add supp_nowait flag in tee_context struct")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use linear range to replace the twl6030ldo_list_voltage implementation.
With this change, the min_mV is not used and can be removed from
struct twlreg_info.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Add missing .owner field in regulator_desc, which is used for refcounting.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Add missing .owner field in regulator_desc, which is used for refcounting.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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- Fix list of valid LS3 currents from mA to µA
- Fix selection of min/max microAmps of LS3.
Selecting one of the configured values as max value now really
selects it instead of the next lower one
Signed-off-by: Christian Hohnstaedt <Christian.Hohnstaedt@wago.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Wacom has introduced a new pen compatible with its MobileStudio Pro and
other tablets. Although adding it to the tool ID tablet is not strictly
necessary unrecognized pens are reported as BTN_TOOL_PEN already, unless
the tablet sends the "eraser" bit, when BTN_TOOL_RUBBER is used instead),
we'll keep it updated anyway.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
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Although qcom_snd_parse_of() tries to manage the of-node refcount,
there are still a few places that lead to the unblanced refcount in
the error code path. Namely,
- for_each_child_of_node() needs to unreference the iterator node if
aborting the loop in the middle,
- cpu, codec and platform node objects have to be unreferenced at each
iteration,
- platform and codec node objects have to be referred before jumping
to the error handling code that unreference them unconditionally.
This patch tries to address these by moving the assignment of platform
and codec node objects to the beginning of the loop and adding the
of_node_put() calls adequately.
Fixes: c25e295cd77b ("ASoC: qcom: Add support to parse common audio device nodes")
Cc: Patrick Lai <plai@codeaurora.org>
Cc: Banajit Goswami <bgoswami@codeaurora.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
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The apq8016 driver leaves the of-node refcount at aborting from the
loop of for_each_child_of_node() in the error path. Not only the
iterator node of for_each_child_of_node(), the children nodes referred
from it for codec and cpu have to be properly unreferenced.
Fixes: bdb052e81f62 ("ASoC: qcom: add apq8016 sound card support")
Cc: Patrick Lai <plai@codeaurora.org>
Cc: Banajit Goswami <bgoswami@codeaurora.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
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In odroid_audio_probe() some OF nodes are left without reference count
decrease after use. Fix it by ensuring required of_node_calls() are done
before exiting probe.
Reported-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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The list of supported functions can be altered upon link reset,
clean the flags to allow correct selections of supported
features.
Cc: <stable@vger.kernel.org> v4.19+
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The cpsw-phy-sel driver was replaced with new PHY driver phy-gmii-sel, so
deprecate cpsw-phy-sel bindings.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Switch to use phy-gmii-sel PHY instead of cpsw-phy-sel.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Switch to use phy-gmii-sel PHY instead of cpsw-phy-sel.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Switch to use phy-gmii-sel PHY instead of cpsw-phy-sel.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Switch to use phy-gmii-sel PHY instead of cpsw-phy-sel.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Dell Precision 5820 with ALC3234 codec (which is equivalent with
ALC255) shows click noises at (runtime) PM resume on the headphone.
The biggest source of the noise comes from the cleared headphone pin
control at resume, which is done via the standard shutup procedure.
Although we have an override of the standard shutup callback to
replace with NOP, this would skip other needed stuff (e.g. the pull
down of headset power). So, instead, this "fixes" the behavior of
alc_fixup_no_shutup() by introducing spec->no_shutup_pins flag.
When this flag is set, Realtek codec won't call the standard
snd_hda_shutup_pins() & co. Now alc_fixup_no_shutup() just sets this
flag instead of overriding spec->shutup callback itself. This allows
us to apply the similar fix for other entries easily if needed in
future.
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/mani/linux-actions into arm/dt
Actions ARM64 DT changes for v5.1:
- Add interrupt properties to S900 pinctrl node
- Add Reset controller support for S700
- Add Reset controller support for S900
- Add pinctrl support for S700
- Add I2C support for S700
- Enable I2C0 and I2C1 for s700-cubieboard7
* tag 'actions-arm64-dt-for-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mani/linux-actions:
arm64: dts: actions: s700-cubieboard7: Enable I2C0 and I2C1
arm64: dts: actions: s700: Add I2C controller nodes
arm64: dts: actions: Add pinctrl node for Actions Semi S700
arm64: dts: actions: Add Reset Controller support for S900 SoC
arm64: dts: actions: Add Reset Controller support for S700 SoC
arm64: dts: actions: Add interrupt properties to pinctrl node for S900
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Clang warns:
drivers/char/hw_random/optee-rng.c:80:31: warning: suggest braces around
initialization of subobject [-Wmissing-braces]
struct tee_param param[4] = {0};
^
{}
drivers/char/hw_random/optee-rng.c:177:31: warning: suggest braces
around initialization of subobject [-Wmissing-braces]
struct tee_param param[4] = {0};
^
{}
drivers/char/hw_random/optee-rng.c:212:48: warning: suggest braces
around initialization of subobject [-Wmissing-braces]
struct tee_ioctl_open_session_arg sess_arg = {0};
^
{}
3 warnings generated.
One way to fix these warnings is to add additional braces like Clang
suggests; however, there has been a bit of push back from some
maintainers, who just prefer memset as it is unambiguous, doesn't
depend on a particular compiler version, and properly initializes all
subobjects [1][2]. Do that here so there are no more warnings.
[1]: https://lore.kernel.org/lkml/022e41c0-8465-dc7a-a45c-64187ecd9684@amd.com/
[2]: https://lore.kernel.org/lkml/20181128.215241.702406654469517539.davem@davemloft.net/
Fixes: 5fe8b1cc6a03 ("hwrng: add OP-TEE based rng driver")
Link: https://github.com/ClangBuiltLinux/linux/issues/369
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Clang warns:
drivers/tee/optee/device.c:39:31: warning: suggest braces around
initialization of subobject [-Wmissing-braces]
struct tee_param param[4] = {0};
^
{}
drivers/tee/optee/device.c:92:48: warning: suggest braces around
initialization of subobject [-Wmissing-braces]
struct tee_ioctl_open_session_arg sess_arg = {0};
^
{}
2 warnings generated.
One way to fix these warnings is to add additional braces like Clang
suggests; however, there has been a bit of push back from some
maintainers, who just prefer memset as it is unambiguous, doesn't
depend on a particular compiler version, and properly initializes all
subobjects [1][2]. Do that here so there are no more warnings.
[1]: https://lore.kernel.org/lkml/022e41c0-8465-dc7a-a45c-64187ecd9684@amd.com/
[2]: https://lore.kernel.org/lkml/20181128.215241.702406654469517539.davem@davemloft.net/
Fixes: c3fa24af9244 ("tee: optee: add TEE bus device enumeration support")
Link: https://github.com/ClangBuiltLinux/linux/issues/370
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into arm/late
DaVinci SoC updates for v5.1 (part 3)
-------------------------------------
This pull request gets rid of mach-davinci private interrupt controller
implmentations (aintc and cp_initc) and moves them to drivers/irqchip.
mach/irqs.h usage outside of mach-davinci has been rid of.
The driver changes (input and irqchip) have been acked by respective
maintainers.
* tag 'davinci-for-v5.1/soc-part3' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci: (57 commits)
ARM: davinci: remove intc related fields from davinci_soc_info
irqchip: davinci-cp-intc: move the driver to drivers/irqchip
ARM: davinci: cp-intc: remove redundant comments
ARM: davinci: cp-intc: drop GPL license boilerplate
ARM: davinci: cp-intc: use readl/writel_relaxed()
ARM: davinci: cp-intc: unify error handling
ARM: davinci: cp-intc: improve coding style
ARM: davinci: cp-intc: request the memory region before remapping it
ARM: davinci: cp-intc: use the new-style config structure
ARM: davinci: cp-intc: convert all hex numbers to lowercase
ARM: davinci: cp-intc: use a common prefix for all symbols
ARM: davinci: cp-intc: add the new config structures for da8xx SoCs
irqchip: davinci-cp-intc: add a new config structure
ARM: davinci: cp-intc: add a wrapper around cp_intc_init()
ARM: davinci: cp-intc: remove cp_intc.h
irqchip: davinci-aintc: move the driver to drivers/irqchip
ARM: davinci: aintc: remove unnecessary includes
ARM: davinci: aintc: remove the timer-specific irq_set_handler()
ARM: davinci: aintc: request memory region before remapping it
ARM: davinci: aintc: unify error handling
...
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into arm/drivers
NXP/FSL SoC driver updates for v5.1 take3
DPIO driver
- fixed a use after free problem
- fixed a memory leak on error path
* tag 'soc-fsl-next-v5.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux:
soc: fsl: dpio: fix memory leak of a struct qbman on error exit path
soc: fsl: dpio: Use after free in dpaa2_dpio_remove()
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/dt
Samsung DTS ARM changes for v5.1, part 2
1. Enable ADC on Odroid HC1 board.
2. Fix clkout register failure on Exynos3250.
3. Allow using earlycon on Arndale board.
4. Disable ARM PMU on Odroid XU3 Lite because it is locked by Trusted
Firmware.
5. Add support for secondary DAI to Odroid XU3 and XU4 boards.
* tag 'samsung-dt-5.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
ARM: dts: exynos: Add support for secondary DAI to Odroid XU4
ARM: dts: exynos: Add support for secondary DAI to Odroid XU3
ARM: dts: exynos: Disable ARM PMU on Odroid XU3-lite
ARM: dts: exynos: Add stdout path property to Arndale board
ARM: dts: exynos: Add minimal clkout parameters to Exynos3250 PMU
ARM: dts: exynos: Enable ADC on Odroid HC1
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Commit 482997699ef0 ("ARM: tegra: Fix unit_address_vs_reg DTC warnings
for /memory") inadventently broke device tree ABI by adding a unit-
address to the "/memory" node because the device tree compiler flagged
the missing unit-address as a warning.
Tegra124 Chromebooks (a.k.a. Nyan) use a bootloader that relies on the
full name of the memory node in device tree being exactly "/memory". It
can be argued whether this was a good decision or not, and some other
bootloaders (such as U-Boot) do accept a unit-address in the name of the
node, but the device tree is an ABI and we can't break existing setups
just because the device tree compiler considers it bad practice to omit
the unit-address nowadays.
This partially reverts the offending commit and restores device tree ABI
compatibility.
Fixes: 482997699ef0 ("ARM: tegra: Fix unit_address_vs_reg DTC warnings for /memory")
Reported-by: Tristan Bastian <tristan-c.bastian@gmx.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Tested-by: Tristan Bastian <tristan-c.bastian@gmx.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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We don't require drivers to guess a DMA mask that might actually
match the system capabilities any more, so fix up the documentation
to clear this up.
Signed-off-by: Christoph Hellwig <hch@lst.de>
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We've been moving to a model where the device just sets the DMA mask
supported by it, instead of having to fallback to something it thinks
the platform might support. Sparc64 is the remaining holdout forcing
drivers to supply a matching mask. Change dma_4v_supported to just
check if the supplied dma mask is large enough. and adjust the mapping
code to check ATU presence in addition to the DMA mask to decide on
the mapping method.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: David S. Miller <davem@davemloft.net>
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We've been moving to a model where the device just sets the DMA mask
supported by it, instead of having to fallback to something it thinks
the platform might support. Sparc64 is the remaining holdout forcing
drivers to supply a matching mask. Change dma_4u_supported to just
check if the supplied dma mask is large enough as nothing in the
iommu.c code (or the core DMA code) actually looks at the DMA mask
later on.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: David S. Miller <davem@davemloft.net>
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Do the quirk first in the dma_supported routines, as we don't need
any of the other checks for it, and remove the duplicate mask checking
that is already done by the callers.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: David S. Miller <davem@davemloft.net>
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There is no harm in setting a 64-bit mask even if we don't need it,
and the current ccio code is one of the few place in the kernel
still rejecting larger than required DMA masks.
Signed-off-by: Christoph Hellwig <hch@lst.de>
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