Following the Amlogic Linux kernel, it seem the only differences
between the GXL and GXM SoCs are the CPU Clusters.
This commit renames the gxl-s905d-p23x DTSI in a common file for
S905D p23x and S912 q20x boards.
Then adds a meson-gxm dtsi and reproduce the P23x to Q20x boards
dts files since the S905D and S912 SoCs shares the same pinout
and the P23x and Q20x boards are identical.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Add device tree binding documentation for the Product Register (PRR),
which provides product and revision information on most Renesas ARM
SoCs.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
ath.git patches for 4.10. Major changes:
ath9k
* add device tree bindings
* switch to use mac80211 intermediate software queues to reduce
latency and fix bufferbloat
Pull RCU updates from Paul E. McKenney:
- Documentation updates, yet again just simple changes.
- Miscellaneous fixes, including a change to call_rcu()'s
rcu_head alignment check.
- Security-motivated list consistency checks, which are
disabled by default behind DEBUG_LIST.
- Torture-test updates.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
"rockchip,hw-tshut-temp", "rockchip,hw-tshut-mode" and
"rockchip,hw-tshut-polarity" are not a required properties
actually as the code could also work by loading the default
settings there. So it is apprently misleading, although we
prefer to get these from DT. And it seems we miss the 'rockchip,grf'
here which should also be an optional property.
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
All conflicts were simple overlapping changes except perhaps
for the Thunder driver.
That driver has a change_mtu method explicitly for sending
a message to the hardware. If that fails it returns an
error.
Normally a driver doesn't need an ndo_change_mtu method becuase those
are usually just range changes, which are now handled generically.
But since this extra operation is needed in the Thunder driver, it has
to stay.
However, if the message send fails we have to restore the original
MTU before the change because the entire call chain expects that if
an error is thrown by ndo_change_mtu then the MTU did not change.
Therefore code is added to nicvf_change_mtu to remember the original
MTU, and to restore it upon nicvf_update_hw_max_frs() failue.
Signed-off-by: David S. Miller <davem@davemloft.net>
The internal codec on A23/A33/H3 is split into 2 parts. The
analog path controls are routed through an embedded custom register
bus accessed through the PRCM block.
The SoCs share a common set of inputs, outputs, and audio paths.
The following table lists the differences.
----------------------------------------
| Feature \ SoC | A23 | A33 | H3 |
----------------------------------------
| Headphone | v | v | |
----------------------------------------
| Line Out | | | v |
----------------------------------------
| Phone In/Out | v | v | |
----------------------------------------
Add a binding for this hardware.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
With the devices added to the tables, the probe will recognize the
switch. This however is not sufficient to make it work properly, other
changes are needed because of incompatibilities.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
PCA9632TK part seems to incorrectly blink at ~1.3x of the programmed
rate. This patchset add a nxp,period-scale devicetree property to
adjust for this misconfiguration.
Signed-off-by: Matt Ranostay <matt@ranostay.consulting>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
sysfs-class-led fails to mention some important details. Also fix led
vs LED and english.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Files are visible all the time, so remove incorrect notes.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
This driver creates a userspace leds driver similar to uinput.
New LEDs are created by opening /dev/uleds and writing a uleds_user_dev
struct. A new LED class device is registered with the name given in the
struct. Reading will return a single byte that is the current brightness.
The poll() syscall is also supported. It will be triggered whenever the
brightness changes. Closing the file handle to /dev/uleds will remove
the leds class device.
Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Linux 4.9-rc6
* tag 'v4.9-rc6': (305 commits)
Linux 4.9-rc6
ext4: sanity check the block and cluster size at mount time
fscrypto: don't use on-stack buffer for key derivation
fscrypto: don't use on-stack buffer for filename encryption
i2c: i2c-mux-pca954x: fix deselect enabling for device-tree
kvm: x86: merge kvm_arch_set_irq and kvm_arch_set_irq_inatomic
KVM: x86: fix missed SRCU usage in kvm_lapic_set_vapic_addr
KVM: async_pf: avoid recursive flushing of work items
kvm: kvmclock: let KVM_GET_CLOCK return whether the master clock is in use
KVM: Disable irq while unregistering user notifier
KVM: x86: do not go through vcpu in __get_kvmclock_ns
MAINTAINERS: Add LED subsystem co-maintainer
crypto: algif_hash - Fix NULL hash crash with shash
powerpc/mm: Fix missing update of HID register on secondary CPUs
KVM: arm64: Fix the issues when guest PMCCFILTR is configured
arm64: KVM: pmu: Fix AArch32 cycle counter access
powerpc/mm/radix: Invalidate ERAT on tlbiel for POWER9 DD1
i2c: digicolor: use clk_disable_unprepare instead of clk_unprepare
ipmi/bt-bmc: change compatible node to 'aspeed, ast2400-ibt-bmc'
Revert "drm/mediatek: set vblank_disable_allowed to true"
...
This pull request brings thermal support to the BCM2837 DT, and a few
other fixes.
In order to get the thermal node that we're adjusting the compatible
string on, we have to merge in the bcm2835-dt-next branch.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Pull Exynos5433 SoC updates from Sylwester Nawrocki:
- addition of missing documentation and DT properties for the CMU_AUD
block source clocks,
- correction of CMU_FSYS parent clock definition,
- marking as critical clocks which have to be enabled in order
to access control registers of child CMUs.
* tag 'clk-v4.10-exynos5433' of git://linuxtv.org/snawrocki/samsung:
clk: exynos5433: Mark some clocks as critical
clk: exynos5433: Add documentation for the audio block parent clocks
clk: exynos5433: Fix parent clocks for FSYS block
Currently the revision isn't available via sysfs/libudev thus if one wants
to know the value one needs to read through the config file, which can be
quite time-consuming because it wakes/powers up the device.
There are at least two userspace components which could make use the new
file: libpciaccess and libdrm. The former wakes up _every_ PCI device,
which can be observed via glxinfo when using Mesa 10.0+ drivers. The
latter, in association with Mesa 13.0, can lead to 2-3 second delays while
starting firefox, thunderbird or chromium.
Link: https://bugs.freedesktop.org/show_bug.cgi?id=98502
Tested-by: Mauro Santos <registo.mailling@gmail.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch
CC: Greg KH <gregkh@linuxfoundation.org>
Modify the ACPI system sleep support setup code to select
suspend-to-idle as the default system sleep state if the
ACPI_FADT_LOW_POWER_S0 flag is set in the FADT and the
default sleep state was not selected from the kernel command
line.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Mario Limonciello <mario.limonciello@dell.com>
There are systems in which the platform doesn't support any special
sleep states, so suspend-to-idle (PM_SUSPEND_FREEZE) is the only
available system sleep state. However, some user space frameworks
only use the "mem" and (sometimes) "standby" sleep state labels, so
the users of those systems need to modify user space in order to be
able to use system suspend at all and that may be a pain in practice.
Commit 0399d4db3e (PM / sleep: Introduce command line argument for
sleep state enumeration) attempted to address this problem by adding
a command line argument to change the meaning of the "mem" string in
/sys/power/state to make it trigger suspend-to-idle (instead of
suspend-to-RAM).
However, there also are systems in which the platform does support
special sleep states, but suspend-to-idle is the preferred one anyway
(it even may save more energy than the platform-provided sleep states
in some cases) and the above commit doesn't help in those cases.
For this reason, rework the system sleep state selection interface
again (but preserve backwards compatibiliby). Namely, add a new
sysfs file, /sys/power/mem_sleep, that will control the system
suspend mode triggered by writing "mem" to /sys/power/state (in
analogy with what /sys/power/disk does for hibernation). Make it
select suspend-to-RAM ("deep" sleep) by default (if supported) and
fall back to suspend-to-idle ("s2idle") otherwise and add a new
command line argument, mem_sleep_default, allowing that default to
be overridden if need be.
At the same time, drop the relative_sleep_states command line
argument that doesn't make sense any more.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Mario Limonciello <mario.limonciello@dell.com>
RK1108 EVB is designed by Rockchip for CVR field.
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
[split off from dts patch and to prevent conflicts with px5 addition]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
MSIOF in R-Car M3-W (r8a7796) is handled fine by the existing driver.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
There may be reasons to use generic cpufreq governors (eg. schedutil)
on Intel platforms instead of the intel_pstate driver's internal
governor. However, that currently can only be done by disabling
intel_pstate altogether and using the acpi-cpufreq driver instead
of it, which is subject to limitations.
First of all, acpi-cpufreq only works on systems where the _PSS
object is present in the ACPI tables for all logical CPUs. Second,
on those systems acpi-cpufreq will only use frequencies listed by
_PSS which may be suboptimal. In particular, by convention, the
whole turbo range is represented in _PSS as a single P-state and
the frequency assigned to it is greater by 1 MHz than the greatest
non-turbo frequency listed by _PSS. That may confuse governors to
use turbo frequencies less frequently which may lead to suboptimal
performance.
For this reason, make it possible to use the intel_pstate driver
with generic cpufreq governors as a "normal" cpufreq driver. That
mode is enforced by adding intel_pstate=passive to the kernel
command line and cannot be disabled at run time. In that mode,
intel_pstate provides a cpufreq driver interface including
the ->target() and ->fast_switch() callbacks and is listed in
scaling_driver as "intel_cpufreq".
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Doug Smythies <dsmythies@telus.net>
The ARM specifies that the system counter "must be implemented in an
always-on power domain," and so we try to use the counter as a source of
timekeeping across suspend/resume. Unfortunately, some SoCs (e.g.,
Rockchip's RK3399) do not keep the counter ticking properly when
switched from their high-power clock to the lower-power clock used in
system suspend. Support this quirk by adding a new device tree property.
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
When switching from/to a guest that has a transaction in progress,
we need to save/restore the checkpointed register state. Although
XER is part of the CPU state that gets checkpointed, the code that
does this saving and restoring doesn't save/restore XER.
This fixes it by saving and restoring the XER. To allow userspace
to read/write the checkpointed XER value, we also add a new ONE_REG
specifier.
The visible effect of this bug is that the guest may see its XER
value being corrupted when it uses transactions.
Fixes: e4e3812150 ("KVM: PPC: Book3S HV: Add transactional memory support")
Fixes: 0a8eccefcb ("KVM: PPC: Book3S HV: Add missing code for transaction reclaim on guest exit")
Cc: stable@vger.kernel.org # v3.15+
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
No one uses functions using the get_block callback anymore. Rip them
out and update documentation.
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Driver can now work with both ID and VBUS pins or either one of
them.
There can be the following 3 cases
1) Both ID and VBUS GPIOs are available:
ID = LOW -> USB_HOST active, USB inactive
ID = HIGH -> USB_HOST inactive, USB state is same as VBUS.
2) Only ID GPIO is available:
ID = LOW -> USB_HOST active, USB inactive
ID = HIGH -> USB_HOST inactive, USB active
3) Only VBUS GPIO is available:
VBUS = LOW -> USB_HOST inactive, USB inactive
VBUS = HIGH -> USB_HOST inactive, USB active
Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Pull ARM SoC fixes from Olof Johansson:
"Again a set of smaller fixes across several platforms (OMAP, Marvell,
Allwinner, i.MX, etc).
A handful of typo fixes and smaller missing contents from device
trees, with some tweaks to OMAP mach files to deal with CPU feature
print misformatting, potential NULL ptr dereference and one setup
issue with UARTs"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ipmi/bt-bmc: change compatible node to 'aspeed, ast2400-ibt-bmc'
ARM: dts: STiH410-b2260: Fix typo in spi0 chipselect definition
ARM: dts: omap5: board-common: fix wrong SMPS6 (VDD-DDR3) voltage
ARM: omap3: Add missing memory node in SOM-LV
arm64: dts: marvell: add unique identifiers for Armada A8k SPI controllers
arm64: dts: marvell: fix clocksource for CP110 slave SPI0
arm64: dts: marvell: Fix typo in label name on Armada 37xx
ASoC: omap-abe-twl6040: fix typo in bindings documentation
dts: omap5: board-common: enable twl6040 headset jack detection
dts: omap5: board-common: add phandle to reference Palmas gpadc
ARM: OMAP2+: avoid NULL pointer dereference
ARM: OMAP2+: PRM: initialize en_uart4_mask and grpsel_uart4_mask
ARM: dts: omap3: Fix memory node in Torpedo board
ARM: AM43XX: Select OMAP_INTERCONNECT in Kconfig
ARM: OMAP3: Fix formatting of features printed
ARM: dts: imx53-qsb: Fix regulator constraints
ARM: dts: sun8i: fix the pinmux for UART1
Pull i2c fixes from Wolfram Sang:
"Some I2C driver bugfixes (and one documentation fix)"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: i2c-mux-pca954x: fix deselect enabling for device-tree
i2c: digicolor: use clk_disable_unprepare instead of clk_unprepare
i2c: mux: fix up dependencies
i2c: Documentation: i2c-topology: fix minor whitespace nit
i2c: mux: demux-pinctrl: make drivers with no pinctrl work again
Pull KVM fixes from Radim Krčmář:
"ARM:
- Fix handling of the 32bit cycle counter
- Fix cycle counter filtering
x86:
- Fix a race leading to double unregistering of user notifiers
- Amend oversight in kvm_arch_set_irq that turned Hyper-V code dead
- Use SRCU around kvm_lapic_set_vapic_addr
- Avoid recursive flushing of asynchronous page faults
- Do not rely on deferred update in KVM_GET_CLOCK, which fixes #GP
- Let userspace know that KVM_GET_CLOCK is useful with master clock;
4.9 changed the return value to better match the guest clock, but
didn't provide means to let guests take advantage of it"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: x86: merge kvm_arch_set_irq and kvm_arch_set_irq_inatomic
KVM: x86: fix missed SRCU usage in kvm_lapic_set_vapic_addr
KVM: async_pf: avoid recursive flushing of work items
kvm: kvmclock: let KVM_GET_CLOCK return whether the master clock is in use
KVM: Disable irq while unregistering user notifier
KVM: x86: do not go through vcpu in __get_kvmclock_ns
KVM: arm64: Fix the issues when guest PMCCFILTR is configured
arm64: KVM: pmu: Fix AArch32 cycle counter access
Userspace can read the exact value of kvmclock by reading the TSC
and fetching the timekeeping parameters out of guest memory. This
however is brittle and not necessary anymore with KVM 4.11. Provide
a mechanism that lets userspace know if the new KVM_GET_CLOCK
semantics are in effect, and---since we are at it---if the clock
is stable across all VCPUs.
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
The iowait is not reliable by reading from /proc/stat, so this
method to get iowait is not suggested. And we mark it in the
document.
Signed-off-by: Cao Jin <caoj.fnst@cn.fujitsu.com>
Signed-off-by: Chao Fan <fanc.fnst@cn.fujitsu.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The pod2rst tool generated a man page for parse-headers.pl
script, but it is better to put it into some context.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Having the kernel-documentation at the topmost level doesn't
allow generating a separate PDF file for it. Also, makes harder
to add extra contents. So, place it on a sub-dir.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This patch adds documentation of device tree bindings for the STM32 ADC.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This patch derives device tree node from pcie bus layer framework.
Device tree bindings file has been renamed(marvell-sd8xxx.txt ->
marvell-8xxx.txt) to accommodate PCIe changes.
Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Rajat Jain <rajatja@google.com>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
