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By using struct led_init_data when registering we do not need to parse
`label` DT property. Moreover `label` is deprecated and if it is not
present but `color` and `function` are, LED core will compose a name
from these properties instead.
Previously if the `label` DT property was not present, the code composed
name for the LED in the form
"pca963x:%d:%.2x:%u"
For backwards compatibility we therefore set init_data->default_label
to this value so that the LED will not get a different name if `label`
property is not present, nor are `color` and `function`.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: Peter Meerwald <p.meerwald@bct-electronic.com>
Cc: Ricardo Ribalda <ribalda@kernel.org>
Cc: Zahari Petkov <zahari@balena.io>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Register LEDs immediately after parsing their properties.
This allows us to get rid of platdata, and since no one in tree uses
header linux/platform_data/leds-pca963x.h, remove it.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: Peter Meerwald <p.meerwald@bct-electronic.com>
Cc: Ricardo Ribalda <ribalda@kernel.org>
Cc: Zahari Petkov <zahari@balena.io>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Remove the binding comment at the beginning. The information for
platdata is now obsolete and DT binding is documented in device-tree
bindings.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: NeilBrown <neilb@suse.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Use helper variable dev instead of always writing &client->dev.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: NeilBrown <neilb@suse.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Do not set GPIO names. Let gpiolib determine GPIO names from the DT
property `gpio-line-names`.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: NeilBrown <neilb@suse.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Some machines have thousands of CPUs... and trigger mechanisms was not
really meant for thousands of triggers. I doubt anyone uses this
trigger on many-CPU machine; but if they do, they'll need to do it
properly.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Help welcome :-).
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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While the two pca9532 pwms can be configured in the platform data
struct, there was no corresponding dt binding. Users need to configure
the pwm if some leds should blink or continue blinking during boot.
Signed-off-by: Markus Moll <mmoll@de.pepperl-fuchs.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Each led setting occupies two bits in a corresponding led register.
Accessing these bits requires shifting and masking, which was
implemented incorrectly in pca9532_getled. Two new helper macros
concentrate the computation of those masks in one place.
Signed-off-by: Markus Moll <mmoll@de.pepperl-fuchs.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Fix warnings for undefined parameters when building with W=1.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Fix warnings for undefined parameters when W=1 is used.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Instead of doing two allocations, allocate only once, by utilizing
flexible array members.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: Peter Meerwald <p.meerwald@bct-electronic.com>
Cc: Ricardo Ribalda <ribalda@kernel.org>
Cc: Zahari Petkov <zahari@balena.io>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Rename variable of type struct pca963x_led from pca963x to simple led.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: Peter Meerwald <p.meerwald@bct-electronic.com>
Cc: Ricardo Ribalda <ribalda@kernel.org>
Cc: Zahari Petkov <zahari@balena.io>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Rename variables chip and pca963x_chip to chipdef and chip,
respectively, so that their names correspond to the names of their
types.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: Peter Meerwald <p.meerwald@bct-electronic.com>
Cc: Ricardo Ribalda <ribalda@kernel.org>
Cc: Zahari Petkov <zahari@balena.io>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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By using devres version of LED registering function we can remove the
.remove method from this driver. The probe method also gets simpler.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: Peter Meerwald <p.meerwald@bct-electronic.com>
Cc: Ricardo Ribalda <ribalda@kernel.org>
Cc: Zahari Petkov <zahari@balena.io>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Use helper variables: instead of writing &client->dev at many places,
write only dev. The same with pca963x->chip->chipdef,
pca963x->chip->client).
Use helper variable u8 val for i2c_smbus_write_byte_data, for better
indentation.
Indent better on various places.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: Peter Meerwald <p.meerwald@bct-electronic.com>
Cc: Ricardo Ribalda <ribalda@kernel.org>
Cc: Zahari Petkov <zahari@balena.io>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Fix potential ERR_PTR(0).
Signed-off-by: Marek Behún <kabel@kernel.org>
Fixes: d78b10f5713d9 ("leds: tca6507: use fwnode API instead of OF")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Robot complains about:
All warnings (new ones prefixed by >>):
>> drivers/leds/leds-tca6507.c:750:34: warning: unused variable
'of_tca6507_leds_match' [-Wunused-const-variable]
static const struct of_device_id of_tca6507_leds_match[] = {
Fix it.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Convert to use fwnode API instead of OF. It is more generic and if
someone wants to use this driver without device-tree yet still, they
will be able to via swnode fwnodes.
Remove the gpio setup function from platdata.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: NeilBrown <neilb@suse.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Tested-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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The only in-tree usage of this driver is via device-tree. No on else
includes linux/leds-tca6507.h, so absorb the definition of platdata
structure.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: NeilBrown <neilb@suse.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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The same markup are there twice, causing warnings with
Sphinx 3.x. Drop the second copy.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Build this driver on another platforms if COMPILE_TEST=y. Another
drivers may depend on this, for example leds-asic3.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Recent Kontron COMe modules identify the PLD device using the hardware
id KEM0001 in the ACPI table.
This patch adds support for probing the device using the HID and also
retrieving the resources.
As this is not available for all products, the DMI based detection still
needs to be around for older systems. It is executed if no matching ACPI
HID is found during registering the platform driver or no specific
device id is forced.
If a device is detected using ACPI and no resource information is
available, the default io resource is used.
Forcing a device id with the force_device_id parameter and therefore
manually generating a platform device takes precedence over ACPI during
probing.
Signed-off-by: Michael Brunner <michael.brunner@kontron.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This patch implements the basic functions of the BMC chip for some Intel
FPGA PCIe Acceleration Cards (PAC). The BMC is implemented using the
Intel MAX 10 CPLD.
This BMC chip is connected to the FPGA by a SPI bus. To provide direct
register access from the FPGA, the "SPI slave to Avalon Master Bridge"
(spi-avmm) IP is integrated in the chip. It converts encoded streams of
bytes from the host to the internal register read/write on the Avalon
bus. So This driver uses the regmap-spi-avmm for register accessing.
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Fix missing return statement when writing "off" to intel_pstate status
sysfs I/F.
Fixes: 55671ea3257a ("cpufreq: intel_pstate: Free memory only when turning off")
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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If the driver initializes in safe mode, it will call
ice_set_safe_mode_caps. This results in clearing the capabilities
structures, in order to set them up for operating in safe mode, ensuring
many features are disabled.
This has a side effect of also clearing the capability bits that relate
to NVM update. The result is that the device driver will not indicate
support for unified update, even if the firmware is capable.
Fix this by adding the relevant capability fields to the list of values
we preserve. To simplify the code, use a common_cap structure instead of
a handful of local variables. To reduce some duplication of the
capability name, introduce a couple of macros used to restore the
capabilities values from the cached copy.
Fixes: de9b277ee032 ("ice: Add support for unified NVM update flow capability")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Brijesh Behera <brijeshx.behera@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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The ice driver needs to wait for a firmware response to each command to
write a block of data to the scratch area used to update the device
firmware. The driver currently waits for up to 1 second for this to be
returned.
It turns out that firmware might take longer than 1 second to return
a completion in some cases. If this happens, the flash update will fail
to complete.
Fix this by increasing the maximum time that the driver will wait for
both writing a block of data, and for activating the new NVM bank. The
timeout for an erase command is already several minutes, as the firmware
had to erase the entire bank which was already expected to take a minute
or more in the worst case.
In the case where firmware really won't respond, we will now take longer
to fail. However, this ensures that if the firmware is simply slow to
respond, the flash update can still complete. This new maximum timeout
should not adversely increase the update time, as the implementation for
wait_event_interruptible_timeout, and should wake very soon after we get
a completion event. It is better for a flash update be slow but still
succeed than to fail because we gave up too quickly.
Fixes: d69ea414c9b4 ("ice: implement device flash update via devlink")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Brijesh Behera <brijeshx.behera@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Add support for the LP87524B/J/P-Q1 Four 4-MHz Buck Converter. This is a
variant of the LP87565 having 4 single-phase outputs and up to 10 A of
total output current.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This file does not make use of it.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This code should clean up if sm501_init_dev() fails.
Fixes: b6d6454fdb66 ("[PATCH] mfd: SM501 core driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The name allocated for the regmap_config structure is freed
pretty early, right after the registration of the MMIO region.
Unfortunately, that doesn't follow the life cycle that debugfs
expects, as it can access the name field long after the free
has occurred.
Move the free on the error path, and keep it forever otherwise.
Fixes: e15d7f2b81d2 ("mfd: syscon: Use a unique name with regmap_config")
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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When changing to use suspend-to-idle to save power, the PMIC irq can not
wakeup the system due to lack of wakeup capability, which will cause
the sub-irqs (such as power key) of the PMIC can not wake up the system.
Thus we can add the wakeup capability for PMIC irq to solve this issue,
as well as removing the IRQF_NO_SUSPEND flag to allow PMIC irq to be
a wakeup source.
Reported-by: Chunyan Zhang <zhang.lyra@gmail.com>
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
Tested-by: Chunyan Zhang <chunyan.zhang@unisoc.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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We must free the vqs array in the open failure path, because
vhost_vdpa_release will not be called.
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Link: https://lore.kernel.org/r/1600712588-9514-2-git-send-email-michael.christie@oracle.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
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Add PCI IDs for Lakefield to the list of supported UARTs.
Cc: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: "Ravi V. Shankar" <ravi.v.shankar@intel.com>
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This converts the DaVinci DM355EVM LEDs to use GPIO descriptor look-ups.
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Common pattern of handling deferred probe can be simplified with
dev_err_probe(). Less code and also it prints the error value.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Common pattern of handling deferred probe can be simplified with
dev_err_probe(). Less code and also it prints the error value.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Common pattern of handling deferred probe can be simplified with
dev_err_probe(). Less code and also it prints the error value.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This driver provides access to the EC RAM of said embedded controller
attached to the I2C bus as well as optionally supporting its slightly weird
power-off/restart protocol.
A particular implementation of the EC firmware can be identified by a
model byte. If this driver identifies the Dell Ariel platform, it
registers the appropriate cells.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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When testing with !OF, the build system reports:
>> drivers/mfd/khadas-mcu.c:125:34: warning: unused variable 'khadas_mcu_of_match' [-Wunused-const-variable]
static const struct of_device_id khadas_mcu_of_match[] = {
^
Reported-by: kernel test robot <lkp@intel.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The RN5T618 and RC5T619 both have a charger and a fuel gauge, so add
a subdevice for it. According to drivers in the wild, things
should be at least similar, but since it is not tested, add it
only to the RC5T619.
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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individul -> individual
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Since commit d5fab59cab18 ("spi: atmel: trivial: remove unused fields in
DMA structure"), the driver is not using any definitions from
linux/platform_data/dma-atmel.h, stop including it.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20200930145353.3043699-1-alexandre.belloni@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Also partially revert the follow-up change "drm: pl111: Absorb the
external register header".
This reverts the parts of commits
7e4e589db76a3cf4c1f534eb5a09cc6422766b93 and
0fb8125635e8eb5483fb095f98dcf0651206a7b8 that touch paths outside
of drivers/gpu/drm/pl111.
The fbdev driver is used by Android's FVP configuration. Using the
DRM driver together with DRM's fbdev emulation results in a failure
to boot Android. The root cause is that Android's generic fbdev
userspace driver relies on the ability to set the pixel format via
FBIOPUT_VSCREENINFO, which is not supported by fbdev emulation.
There have been other less critical behavioral differences identified
between the fbdev driver and the DRM driver with fbdev emulation. The
DRM driver exposes different values for the panel's width, height and
refresh rate, and the DRM driver fails a FBIOPUT_VSCREENINFO syscall
with yres_virtual greater than the maximum supported value instead
of letting the syscall succeed and setting yres_virtual based on yres.
Signed-off-by: Peter Collingbourne <pcc@google.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200929195344.2219796-1-pcc@google.com
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gfxoff is temporarily disabled for navy_flounder, since
at present the feature caused some tdr when performing
display operations.
Signed-off-by: Jiansong Chen <Jiansong.Chen@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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As the dpm clock table is needed during DC HW initialization.
And that (DC HW initialization) comes before smu_late_init()
where current APU dpm clock table setup is performed. So, NULL
pointer dereference will be triggered. By moving APU dpm clock
table setup to smu_hw_init(), this can be avoided.
Fixes: 02cf91c113ea ("drm/amd/powerplay: postpone operations not required for hw setup to late_init")
Acked-by: Nirmoy Das <nirmoy.das@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reported-by: Dirk Gouders <dirk@gouders.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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It has been discovered that there is a potential deadlock between
the clock-change-notifier thread and the UART port suspending one:
CPU0 (suspend CPU/UART) CPU1 (update clock)
---- ----
lock(&port->mutex);
lock((work_completion)(&data->clk_work));
lock(&port->mutex);
lock((work_completion)(&data->clk_work));
*** DEADLOCK ***
The best way to fix this is to eliminate the CPU0
port->mutex/work-completion scenario. So we suggest to register and
unregister the clock-notifier during the DW APB UART port probe/remove
procedures, instead of doing that at the points of the port
startup/shutdown.
Link: https://lore.kernel.org/linux-serial/f1cd5c75-9cda-6896-a4e2-42c5bfc3f5c3@redhat.com
Fixes: cc816969d7b5 ("serial: 8250_dw: Fix common clocks usage race condition")
Reported-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Link: https://lore.kernel.org/r/20200923161950.6237-4-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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It is erroneous to update the TTY port baud rate if it hasn't been
initialized yet, because in that case the TTY struct isn't set. So there
is no termios structure to get and re-calculate the baud if the current
baud can't be reached. Let's skip the baud rate update then until the port
is fully initialized.
Note the update UART clock method still sets the uartclk member with a new
ref clock value even if the port is turned off. The new UART ref clock
rate will be used later on the port starting up procedure.
Fixes: 868f3ee6e452 ("serial: 8250: Add 8250 port clock update method")
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Link: https://lore.kernel.org/r/20200923161950.6237-3-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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It has been a mistake to add the MCR register RTS/DTS fields setting in
the generic method of the UART reference clock update. There is no point
in asserting these lines at that procedure. Just discard the
serial8250_out_MCR() mathod invocation from there then.
Fixes: 868f3ee6e452 ("serial: 8250: Add 8250 port clock update method")
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Link: https://lore.kernel.org/r/20200923161950.6237-2-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The IPG clock is disabled at the end of imx_uart_shutdown(); we really
don't want to run any IRQ handlers after this point.
At least on i.MX8MN, the UART will happily continue to generate interrupts
even with its clocks disabled, but in this state, all register writes are
ignored (which will cause the shadow registers to differ from the actual
register values, resulting in all kinds of weirdness).
In a transfer without DMA, this could lead to the following sequence of
events:
- The UART finishes its transmission while imx_uart_shutdown() is run,
triggering the TXDC interrupt (we can trigger this fairly reliably by
writing a single byte to the TTY and closing it right away)
- imx_uart_shutdown() finishes, disabling the UART clocks
- imx_uart_int() -> imx_uart_transmit_buffer() -> imx_uart_stop_tx()
imx_uart_stop_tx() should now clear UCR4_TCEN to disable the TXDC
interrupt, but this register write is ineffective. This results in an
interrupt storm.
To disable all interrupts in the same place, and to avoid setting UCR4
twice, clearing UCR4_OREN is moved below del_timer_sync() as well; this
should be harmless.
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Link: https://lore.kernel.org/r/20200925082412.12960-1-matthias.schiffer@ew.tq-group.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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