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There is no requirement to serialise bulk transfers as that is all
done in VCHI, and if a second MMAL_MSG_TYPE_BUFFER_TO_HOST happened
before the VCHI_CALLBACK_BULK_RECEIVED, then the service_callback
thread is deadlocked.
Remove the bulk_mutex so that multiple receives can be scheduled at a
time.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The struct mmal_msg_context was being allocated for every message
being sent to the VPU, and freed when it came back. Whilst that is
required behaviour for some messages (mainly the synchronous ones), it
is wasteful for the video buffers that make up the majority of the
traffic.
Add to the buffer_init/cleanup hooks that it allocates/frees the
msg_context required.
v2: changes by anholt from the downstream tree: clean up indentation,
pass an error value through, forward-declare the struct so we have
less void *
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Interleaved RGB and single plane YUV formats can be delivered by the
GPU without the secondary step of removing padding, as the
bytesperline field can be set appropriately.
Planar YUV needs the GPU to still remove padding, as there is no way
to report that there is padding between the planes (ie on the height).
The multi-planar formats are NOT applicable, as there is no easy way
to make them contiguous in memory (ie one large allocation that gets
broken up). The whole task is passed across to videobuf2 which has no
notion of that requirement.
v2: Changes by anholt from the downstream driver: Flag two more planar
formats as needing padding removal, and remove broken userspace
workaround.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This allows bcm2835-camera to automatically probe after VCHI has
loaded, rather than only successfully probing if the arbitrary probe
order chooses us after VCHI.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We had the camera driver set up in a module_init function, but that
meant that the camera driver would fail to load if it was initialized
before VCHI. By attaching to this platform_device, it can get a
defined load order.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rx handler (assigned with netdev_rx_handler_register,
called from __netif_receive_skb()) uses value of dev->rx_handler_data.
The driver has no rx handler and does not need it, so remove rx_handler_data read.
Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add a static prefix to the declaration for libcfs_dev. This would fix
the following sparse warning:
drivers/staging/lustre/lnet/libcfs/module.c:317:19: warning: symbol
'libcfs_dev' was not declared. Should it be static?
Signed-off-by: Justin Skists <justin.skists@juzza.co.uk>
Reviewed-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Trivial fix to spelling mistake in ODM_RT_TRACE message text
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch removes debugging code in video.c that causes the following
checkpatch warning:
WARNING: Prefer using '\"%s...\", __func__' to using function's name in a string
Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This satisfies a checkpatch.pl warning and is the preferred method for
notating the license due to its lack of ambiguity.
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
1st round of IIO new device support, features and cleanup for the 4.18 cycle
A nice mix this time of excellent cleanups (many to send drivers
speeding toward staging graduations) and new drivers / device support.
A good part of this is Brian Masney's never ending task on the tsl2x7x
driver. The end is in sight so hopefully we'll get that one out of
staging very soon!
New device support
* AD5686
- Support AD5685R (was wrongly present as AD5685)
- Support AD5672R, AD5676, AD5676, AD5684R and AD5686R 4 and 8 channel
SPI DACs with various precisions.
- Support AD5671R, AD5675R, AD5694, AD5694R, AD5695R, AD5696 and AD5696R
I2C DACs with various percisions and numbers of channels.
* Analog front end rescale driver - New driver.
- Support current sensing usings a shunt resistor.
- Support simple voltage dividers.
- support simple current sense amplifiers.
* TI dac5571
- New driver and device bindings supporting:
dac5571, dac6571, dac7571, dac5574, dac6574, dac7574,
dac5573, dac6573 and dac7573
* Meson-adc
- Support for Meson AXG with DT bindings.
* mpu6050
- Support the mpu9255 which only requires additional WHOAMI entry and
compatible string.
* st_lsm6dsx
- Support for lsm330dlc combinded accelerometer and gyro sensors with
DT bindings.
* stm32_adc
- Add support for STM32MP1 with bindings.
Staging graduations
* adis16201 after some excelent cleanup by Himanshu Jha.
* adis16029 after some excelent cleanup by Shreeya Patel.
New features:
* ABI docs
- Add core ABI docs for angle channels.
* inv_mpu6050
- Provide support for the full range of interrupts the device
supports.
* st_accel
- Add SMO8840 ACPI ID seen in the wild on some Lenovo machines.
* stx104
- Provide a multiple gpio get function.
Cleanups / Minor fixes
* core
- Use new nested structure support to improve kernel-doc.
* ad2s1200
- Use be16_to_cpup instead of opencoding.
* ad5686
- Indentation tidy up.
- Switch to SPDX
- Refactor to allow various numbers of channels.
- Refactor to separate core and SPI specific support, prior to
addition of i2c equivalent devices.
* ad7606
- Use drvdata directly from device rather than boucing via the
platform_device structure.
* ad7746
- Replace opencoded byte swapped i2c calls with _swapped variants.
- White space and line break readability improvements.
- Reorder includes and variable declarations where appropriate.
* ad7791
- Changes to the AD ADC library used by this driver took in the
sampling frequency. This lead to be the wrong path being the one
tied to the resulting attribute, so it didn't work, and a warning
to be printed.
* ad7780
- Remove apparent support for sampling frequency control on devices
that don't support changing the sampling attributes.
* ade7854
- Fix a read of the wrong number of bits.
- Improve error handling on i2c read/write errors.
- Rework i2c and spi code to reduce duplication.
* adis16201 (staging)
- Improve meaning inherent in some macro names by adding units etc
where relevant.
- Adjust comments to improve detail and drop the irrelevant.
- Rename register address definitions definitions to add a _REG
postfix, clearly separating them from field definitions. Reorganize
the definitions to group register address and fields.
- Use sign_extend32 rather than open coding.
- Reverse Xmas tree ordering where appropriate and align function args.
- Remove unused headers.
- Use GENMASK where appropriate instead of open coding.
* adis16209 (staging)
- Indent field definitions to visually separate them from
register address definitions.
- Use reverse xmas tree ordering where appropriate.
- Add some whitespace where it will help readability.
- Drop some unused headers.
- Use GENMASK where appropriate.
* ad2s1200
- Drop unnecessary includes and reorder alphabetically.
- Reverse xmas tree and blank line cleanups.
* atlas-ph-sensor
- Use msleep instead of usleep_range where the precise value doesn't
matter and the delays are long.
* bcm150
- Drop transaction splitting as core now handles it.
* cros_ec
- Move the shared header to the include/iio/common directory.
This brings it inline with the other multiple type devices.
- Use drvdata directly from device rather than boucing via the
platform_device structure.
* hid-sensors
- Use drvdata directly from device rather than boucing via the
platform_device structure.
* inv_mpu6050
- Clear out a second function definition for the same function.
- Don't flush fifo when the iio buffer is full but just drop excess
data.
- Tidy up set_power_itg and ensure it is used in the right places.
- Use set_power_itg rather than opencoding it again in the i2c mux
control.
- Make sure error paths disable the power if undoing power on.
- Used managed devm_ functions during probe. Delete remove function.
- Refactor to pull raw data read out of read_raw function.
- Simplify data reading error paths.
- Only enable the i2c mux for chips with the i2c aux bus (not icm20608)
- Fix a potential deadlock due to varying lock ordering.
- Fix an issue where first sample from gyro after enabling is unstable
by dropping the first sample.
- Fix an issue where the user_ctrl register is incorrectly overwritten.
- Tidy up some grammar and spelling minor issus.
* mcp320x
- Use vendor compatible strings.
* mcp4018
- Switch to using i2c .probe_new.
* mcp4351
- switch to using i2c .probe_new.
* meson-adc
- rework handing on common ADC platform data so it can be shared
across multiple families of SoCs.
* sca3000
- Fix an error handling path if the ring configure fails.
* st_lsm6dsx
- Fix a wrong fifo threshold mask (no actual effect)
* stm32-dfsdm
- Style fixes and cleanups.
- Check filter ID is in range and check spi-max-frequency.
* tsl2x7x (staging)
- Drop some unnecessary function calls, unused variables and
unnecessary local variables.
- Fix wrong interrupt type.
- Avoid unnecessary double clear of interrupt.
- Simplify proximity calibration call which did various things
unrelated to actually calibrating.
- Separate control of the proximity and ALS interrupts.
- Improve consistency of logging.
- Separate ALS and proximity persistence settings as they have
separate hardware controls.
- Tidy up variable ordering.
- Add Brian to copyright notice given consider work on this driver.
- Take advantage of hardware support for I2C address auto increment.
- Combine individuaal enable and period attributes for the two
directions on the threshold events into a single value as the
hardware doesn't separate them.
- Move integration_time* attributes from light channel to
intensity value as they effect the intensity readings directly
and the light reading only indirectly. Hence this better
reflects reality. Also move the calibscale_available.
- Avoid returning an error in the IRQ handler.
- Hard code the reg value in _clear_interrupts as it only takes
one value in the code. Result is the function has little
purpose so opencode the two remaining i2c_smbus_write_byte
calls.
- Drop some unnecessary checking of the chip status register.
- Tidy up return path in _write_interrupt_config.
- Tidy up the ID verification code.
- Move the power and diode settings defines into the header as these
are needed for platform data configuration.
- Various renames and comment cleanups for consistency and clarity.
- Use actual device defaults for default startup settings.
- SPDX
- Add some range sanity checking to sysfs attribute writes.
- Don't provide event interfaces if the interrupt line isn't available.
- Use IIO_CONST_ATTR macro for calibscale_available as it's a constant
string.
- Fix the integration time and lux equations.
- Make device IDs explicit index values in the device_channel_config array.
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Fix alignment issues reported by checkpatch.pl.
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add missing blank lines after declarations to solve checkpatch.pl errors.
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove un-necessary blank lines to solve errors found by checkpatch.pl.
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix the following comilation error by making sure that "phy_ring_head" is
defined as "dma_addr_t" and change "phy_ring_tail" to match it as both
should be "dma_addr_t".
error: passing argument 3 of ‘dma_alloc_coherent’ from incompatible pointer type
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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OPA driver optimizations are based on the MPI model where it is
expected to have multiple endpoints between two given nodes. To
enable this optimization for Lustre, we need to make it possible,
via an LND-specific tuneable, to create multiple endpoints and to
balance the traffic over them.
Both sides of a connection must have this patch for it to work.
Only the active side of the connection (usually the client)
needs to have the new tuneable set > 1.
Signed-off-by: Doug Oucharek <doug.s.oucharek@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8943
Reviewed-on: https://review.whamcloud.com/25168
Reviewed-by: Amir Shehata <amir.shehata@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Doug Oucharek <dougso@me.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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uwrq is an unsigned 32-bit integer, it cannot be less than zero.
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch removes the local variable dev that is used to store the pointer
to the usb_device whenever it is used only once.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The functions usb_disconnect and usb_sndbulkpipe are racing for the struct
usb_device, which might cause a null pointer dereference exception. This
patch fixes this race condition by protecting the critical section inside
the function hdm_enque with the io_mutex.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch avoids setting the URB_ZERO_PACKET transfer flag for synchronous
data. This is needed to prevent the host from sending an empty packet when
data is aligned to an endpoint packet boundary.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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On several architectures the allocation of coherent memory needs a device
that has the dma_ops structure properly initialized. This patch enables
the DIM2 platform to be used to allocate this type of memory.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch implemets reading of the clock speed from DT.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch removes the dependency to platform specific source files
that do platform specific initialization and supply the IRQ number.
Instead DT code is added
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes a race condition between the functions disconnect and poll.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Platform specific initialization (data->init) has to be done before
calling dim_startup to start the DIM2 IP.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The function ch_get_mbo declares its return value as type bool,
but returns a pointer to mbo.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch adds the endpoint number of the USB pipe that reports to be
broken into the log message. It is needed to make debugging for
applications more comfortable.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The function unregister_chrdev_region is called with a different counter
as the alloc_chrdev_region. To fix this, this patch introduces the
constant CHRDEV_REGION_SIZE that is used in both functions.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch avoids the warning that the pointer mbo might be used
uninitialized that some environmens throw.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch is needed as function snd_card_new needs a valid
parent device. Passing a NULL pointer leads to kernel Ooops.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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On arm64/aarch64 architectures the allocation of coherent memory needs a
device that has the dma_ops properly set. That's why the core module of
the MOST driver is no longer able to allocate this type or memory. This
patch moves the allocation process down to the interface drivers where
the proper devices exist (e.g. platform device or USB system software).
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently, there are two module parameters for the i2c driver:
- polling_req: boolean irq/polling mode;
- scan_rate: polling rate, that is used in the case where the polling
mode is active
This model is misconfiguration-prone. For example, it is possible to
select polling mode with the zero polling rate or configure non-zero
polling rate in a combination with the IRQ mode.
This patch replaces the 'polling_req' and 'scan_rate' by the
'polling_rate', where the value zero means the interrupt driven mode and
other values are used as the polling rate in the polling mode.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The elements of the dev->rx.list are consumed in the pending_rx_work and
populated in the function enqueue() that cancels the pending_rx_work.
The function enqueue() and poison_channel() do not race anyway.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The variable is_open is checked only in the work function
pending_rx_work() that is only active between the calls
configure_channel() and poison_channel().
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The real polling rate depends on the CONFIG_HZ and may differ from the
required polling rate.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch avoids that a configured scan_rate of more than MSEC_PER_SEC
might result in a polling delay of zero.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch prevents the driver from falling back to polling mode
in case of IRQ misconfiguration.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch removes the function wait_event_interruptible from the
work function to avoid waiting.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently the IRQ handler used for the rx channel lives between the
functions i2c_probe and i2c_remove. This patch shortens the lifetime
and keeps the handler alive only between the functions configure_channel
and poison_channel.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Currently, the only supported PCM formats are 1x8", "2x16", "2x24",
"2x32" or "6x16".
This adds support for the format "Nx{8,16,24,32}" that also includes the
exotic PCM formats like "4x16", "5x8", etc.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch adds the channel property dbr_size to control the corresponding
buffer size of the channels of the DIM2 interface.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This removes call of the poison_channel that is:
- not allowed after most_deregister_interface;
- is made during the most_deregister_interface call.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This prevents division by zero scan_rate.
The zero scan_rate does not need any special action as it actually means
"never poll again".
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This removes the module parameter clock_speed from the HDM code.
Instead, the platform-dependent clock speed must be delivered by the
platform driver with the help of the dim2_platform_data.clk_speed.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This prohibits the allocation of the memory for the MBOs if only the
part of the MBOs, requested by the application, may be allocated. The
function arm_mbo_chain, if cannot allocate all requested MBO, frees all
prior allocated memory and returns 0.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fixes a checkpatch.pl warning.
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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checkpatch.pl complains these are invalid because the rules in
Documentation/process/license-rules.rst state that C headers should
have "/* */" style comments.
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fixes checkpatch.pl warnings about lines ending with parentheses.
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fixes checkpatch.pl warnings about lines ending with parentheses.
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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do_destroy_fd_scoped_permission
Fixes checkpatch.pl warnings about lines ending with parentheses.
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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