| Commit message (Collapse) | Author | Age | Files | Lines |
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The connector driver never modifies any cb_id passed to it, so add a const
qualifier to those arguments so callers can declare their struct cb_id as a
constant object.
Fixes build warnings like these when passing a constant struct cb_id:
warning: passing argument 1 of ‘cn_add_callback’ discards ‘const’ qualifier from pointer target
Signed-off-by: Geoff Levand <geoff@infradead.org>
Link: https://lore.kernel.org/r/a9e49c9e-67fa-16e7-0a6b-72f6bd30c58a@infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging / IIO driver updates from Greg KH:
"Here is the big staging and IIO driver pull request for 5.11-rc1
Lots of different things in here:
- loads of driver updates
- so many coding style cleanups
- new IIO drivers
- Android ION code is finally removed from the tree
- wimax drivers are moved to staging on their way out of the kernel
Nothing really exciting, just the constant grind of kernel development :)
All have been in linux-next for a while with no reported issues"
* tag 'staging-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (341 commits)
staging: olpc_dcon: Do not call platform_device_unregister() in dcon_probe()
staging: most: Fix spelling mistake "tranceiver" -> "transceiver"
staging: qlge: remove duplicate word in comment
staging: comedi: mf6x4: Fix AI end-of-conversion detection
staging: greybus: Add TODO item about modernizing the pwm code
pinctrl: ralink: add a pinctrl driver for the rt2880 family
dt-bindings: pinctrl: rt2880: add binding document
staging: rtl8723bs: remove ELEMENT_ID enum
staging: rtl8723bs: remove unused macros
staging: rtl8723bs: replace EID_EXTCapability
staging: rtl8723bs: replace EID_BSSIntolerantChlReport
staging: rtl8723bs: replace EID_BSSCoexistence
staging: rtl8723bs: replace _MME_IE_
staging: rtl8723bs: replace _WAPI_IE_
staging: rtl8723bs: replace _EXT_SUPPORTEDRATES_IE_
staging: rtl8723bs: replace _ERPINFO_IE_
staging: rtl8723bs: replace _CHLGETXT_IE_
staging: rtl8723bs: replace _COUNTRY_IE_
staging: rtl8723bs: replace _IBSS_PARA_IE_
staging: rtl8723bs: replace _TIM_IE_
...
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As we no longer support a try again if we cannot reenable the trigger
rename the function to reflect this. Also we don't do anything with
the value returned so stop it returning anything. For the few drivers
that didn't already print an error message in this patch, add such
a print.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Christian Oder <me@myself5.de>
Cc: Eugen Hristev <eugen.hristev@microchip.com>
Cc: Nishant Malpani <nish.malpani25@gmail.com>
Cc: Daniel Baluta <daniel.baluta@oss.nxp.com>
Link: https://lore.kernel.org/r/20200920132548.196452-3-jic23@kernel.org
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Use a heap allocated memory for the SPI transfer buffer. Using stack memory
can corrupt stack memory when using DMA on some systems.
This change moves the buffer from the stack of the trigger handler call to
the heap of the buffer of the state struct. The size increases takes into
account the alignment for the timestamp, which is 8 bytes.
The 'data' buffer is split into 'tx_buf' and 'rx_buf', to make a clearer
separation of which part of the buffer should be used for TX & RX.
Fixes: af3008485ea03 ("iio:adc: Add common code for ADI Sigma Delta devices")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20201124123807.19717-1-alexandru.ardelean@analog.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
First set of new device support, features and cleanups for IIO in the 5.11 cycle
Usual mixed bag of new drivers / device support + cleanups etc with the
addition of a fairly big set of yaml conversions.
Txt to yaml format conversions.
In some cases dropped separate binding and moved to trivial devices (drop).
Listed by manufacturer
- dht11 temperature(drop)
- adi,ad2s90 adi,ad5272 adi,ad5592r adi,ad5758 adi,ad5933 adi,ad7303
adi,adis16480 adi,adf4350
- ams,as3935
- asahi-kasei,ak8974
- atmel,sama5d2-adc
- avago,apds9300 avago,apds9960
- bosch,bma180 bosch,bmc150_magn bosch,bme680 bosch,bmg180
- brcm,iproc-static-adc
- capella,cm36651
- domintech,dmard06(drop)
- fsl,mag3110 fsl,mma8452 fsl,vf610-dac
- hoperf,hp03
- honeywell,hmc5843
- kionix,kxcjk1013
- maxim,ds1803(drop) maxim,ds4424 maxim,max30100 maxim,max30102
maxim,max31856 maxim,max31855k maxim,max44009
maxim,max5481 maxim,max5821
- meas,htu21(drop) meas,ms5367(drop) meas,ms5611 meas,tsys01(drop)
- mediatek,mt2701-auxadc
- melexis,mlx90614 melexis,mlx90632
- memsic,mmc35240(drop)
- microchip,mcp41010 microchip,mcp4131 microchip,mcp4725
- murata,zap2326
- nxp,fxas21002c nxp,lpc1850-dac
- pni,rm3100
- qcom,pm8018-adc qcom,spmi-iadc
- renesas,isl29501 renesas,rcar-gyroadc
- samsung,sensorhub-rinato
- sensiron,sgp30
- sentech,sx9500
- sharp,gp2ap020a00f
- st,hts221 st,lsm6dsx st,st-sensors(many!) st,uvis25 st,vcl53l0x st,vl6180
- ti,adc084s021 ti,ads124s08
ti,dac5571 ti,dac7311 ti,dac7512 ti,dac7612
ti,hdc1000(drop) ti,palmas-gpadc ti,opt3001 ti,tmp07
- upisemi,us51882
- vishay,vcnl4035
- x-powers,axp209
New device support
* adi,ad5685
- Add support for AD5338R dual output 10-bit DAC
- Add DT-binding doc.
* mediatek,mt6360
- New driver for this SoC ADC with bindings and using new channel label
support in the IIO core.
* st,lsm6dsx
- Add support for LSM6DST
Core:
* Add "label" to device channels, provided via a new core callback. Including
DT docs for when that is the source, and ABI docs.
* Add devm_iio_triggered_buffer_setup_ext to take extra attributes.
* dmaengine, unwrap use of iio_buffer_set_attrs()
* Drop iio_buffer_set_attrs()
* Centralize ioctl call handling. Later fix to ensure -EINVAL returned if
no handler has run.
* Fix an issue with IIO_VAL_FRACTIONAL and negative values - doesn't affect
any known existing drivers, but will impact a future one.
* kernel-doc fix in trigger.h
* file-ops ordering cleanup
Features
* semtech,sx9310
- Add control of hardware gain, proximity thresholds, hysteresis and
debounce.
- Increase what information on hardware configuration can be provided
via DT.
Cleanup and minor features
* adi,ad5685
- Add of_match_table
* adi,ad7292
- Drop pointless spi_set_drvdata() call
* adi,ad7298
- Drop platform data and tidy up external reference config.
* adi,ad7303
- Drop platform data handling as unused.
* adi,ad7768
- Add new label attribute for channels provided from dt.
* adi,ad7887
- devm_ usage in probe simplifying remove and error handling.
* adi,adis16201
- Drop pointless spi_set_drvdata() call
* adi,adis16209
- Drop pointless spi_set_drvdata() call
* adi,adis16240
- White space fixup
* adi,adxl372
- use new devm_iio_triggered-buffer_setup_ext()
* amlogic,meson-saradc
- Drop pointless semicolon.
* amstaos,tsl2563
- Put back i2c_device_id table as needed for greybus probing.
* atmel,at91_adc
- Use of_device_get_match_data() instead of open coding it.
- Constify some driver data
- Add KCONFIG dep on CONFIG_OF and drop of_match_ptr()
- Drop platform data as mostly dead code.
- Tidy up reference voltage logic
* atmel-sama5d2
- Drop a pointless semicolon
- Merge buffer and trigger init into a separate function
- Use new devm_iio_triggered_buff_setup_ext()
* avago,apds9960
- Drop a pointless semicolon
* bosch,bmc150
- Drop a pointless semicolon
- Use new iio_triggered_buffer_setup_ext()
* bosch,bmp280
- Drop a pointless semicolon
* fsl,mma8452
- Constification
* (google),cros_ec
- Use new devm_iio_triggered_buffer_setup_ext()
* hid-sensors
- Use new iio_triggered_buffer_setup_ext()
* ingenic,adc
- Drop a pointless semicolon
* invensense,icm426xx
- Fix MAINTAINERS entry missing :
* mediatek,mt6577_audxac
- Add binding doc for mt8516 compatible with mt8173
* motorola,cpcap-adc
- Fix an implicit fallthrough marking that clang needs to avoid warning.
* samsung,exynos-adc
- Stop relying on users counter form input device in ISR.
* st,lsm6dsx
- add vdd and vddio regulator control (including binding update)
* st,stm32-adc
- Tidy up code for dma transfers.
- Adapt clock duty cycle for proper functioning. Note no known problems
with existing boards.
* st,vl53l0x-i2c
- Put back i2c_device_id table as needed for greybus probing.
* vishay,vcnl4035
- Put back i2c_device_id table as needed for greybus probing.
* tag 'iio-for-5.11a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (126 commits)
dt-bindings:iio:adc:x-powers,axp209-adc: txt to yaml conversion
dt-bindings:iio:adc:renesas,rcar-gyroadc: txt to yaml conversion.
dt-bindings:iio:adc:atmel,sama5d2-adc: txt to yaml conversion
dt-bindings:iio:magnetometer:pni,rm3100: txt to yaml conversion.
dt-bindings:iio:magnetometer:honeywell,hmc5843: txt to yaml format conversion
dt-bindings:iio:magnetometer:bosch,bmc150_magn: txt to yaml conversion.
dt-bindings:iio:magnetometer:asahi-kasei,ak8974: txt to yaml format conversion
dt-bindings:iio:magnetometer:fsl,mag3110: txt to yaml conversion
dt-bindings:iio:light:st,vl6180: txt to yaml format conversion.
dt-bindings:iio:light:vishay,vcnl4035: txt to yaml conversion
dt-bindings:iio:light:st,uvis25: txt to yaml conversion for this UV sensor
dt-bindings:iio:light:upisemi,us51882: txt to yaml conversion.
dt-bindings:iio:light:ti,opt3001: txt to yaml conversion
dt-bindings:iio:light:maxim,max44009: txt to yaml conversion.
dt-bindings:iio:light:sharp,gp2ap020a00f: txt to yaml conversion.
dt-bindings:iio:light:capella,cm36651: txt to yaml conversion.
dt-bindings:iio:light:avago,apds9960: txt to yaml conversion
dt-bindings:iio:light:avago,apds9300: txt to yaml conversion.
dt-bindings:iio:imu:st,lsm6dsx: txt to yaml conversion
dt-bindings:iio:imu:adi,adis16480: txt to yaml conversion
...
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The iio_buffer_set_attrs() is no longer used in the drivers, so it can be
removed now.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20200929125949.69934-10-alexandru.ardelean@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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This change adds a parameter to the {devm_}iio_triggered_buffer_setup()
functions to assign the extra sysfs buffer attributes that are typically
assigned via iio_buffer_set_attrs().
The functions also get renamed to iio_triggered_buffer_setup_ext() &
devm_iio_triggered_buffer_setup_ext().
For backwards compatibility the old {devm_}iio_triggered_buffer_setup()
functions are now macros wrap the new (renamed) functions with NULL for the
buffer attrs.
The aim is to remove iio_buffer_set_attrs(), so in the
iio_triggered_buffer_setup_ext() function the attributes are assigned
directly to 'buffer->attrs'.
When adding multiple IIO buffers per IIO device, it can be pretty
cumbersome to first allocate a set of buffers, then to dig them out of IIO
to assign extra attributes (with iio_buffer_set_attrs()).
Naturally, the best way would be to provide them at allocation time, which
is what this change does.
At this moment, buffers allocated with {devm_}iio_triggered_buffer_setup()
are the only ones in mainline IIO to call iio_buffer_set_attrs().
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20200929125949.69934-4-alexandru.ardelean@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The aim of this is to improve a bit the organization of ioctl() calls in
IIO core. Currently the chardev is split across IIO core sub-modules/files.
The main chardev has to be able to handle ioctl() calls, and if we need to
add buffer ioctl() calls, this would complicate things.
The 'industrialio-core.c' file will provide a 'iio_device_ioctl()' which
will iterate over a list of ioctls registered with the IIO device. These
can be event ioctl() or buffer ioctl() calls, or something else.
Each ioctl() handler will have to return a IIO_IOCTL_UNHANDLED code (which
is positive 1), if the ioctl() did not handle the call in any. This
eliminates any potential ambiguities about negative error codes, which
should fail the call altogether.
If any ioctl() returns 0, it was considered that it was serviced
successfully and the loop will exit.
This change also moves the handling of the IIO_GET_EVENT_FD_IOCTL command
inside 'industrialio-event.c', where this is better suited.
This patch is a combination of 2 other patches from an older series:
Patch 1: iio: core: add simple centralized mechanism for ioctl() handlers
Link: https://lore.kernel.org/linux-iio/20200427131100.50845-6-alexandru.ardelean@analog.com/
Patch 2: iio: core: use new common ioctl() mechanism
Link: https://lore.kernel.org/linux-iio/20200427131100.50845-7-alexandru.ardelean@analog.com/
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20200924084155.99406-1-alexandru.ardelean@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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If a label is defined in the device tree for this channel add that
to the channel specific attributes. This is useful for userspace to
be able to identify an individual channel.
Signed-off-by: Cristian Pop <cristian.pop@analog.com>
Link: https://lore.kernel.org/r/20200928090959.88842-1-cristian.pop@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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A function has a different name between their prototype
and its kernel-doc markup.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/46622c3bdcffb76e79719f0fe5011c2952960b32.1603469755.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The information in the ad7303 platform_data header is unused, so it's dead
code.
This change removes it and it's inclusion from the driver.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20201001141004.53846-1-alexandru.ardelean@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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This change removes the old platform data for ad7298. It is only used to
provide whether to use an external regulator as a reference.
So, the logic is inverted a bit. The driver now tries to obtain a
regulator. If one is provided, then the external ref is used. The rest of
the logic should work as before.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20201001141048.69050-1-alexandru.ardelean@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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This change inverts/reworks the logic to use an external reference via a
provided regulator.
Now the driver tries to obtain a regulator. If one is found, then it is
used. The rest of the driver logic already checks if there is a non-NULL
reference to a regulator, so it should be fine.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20201002082723.184810-1-alexandru.ardelean@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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The AT91 ADC driver no longer uses the 'at91_add_device_adc' platform data
type. This is no longer used (at least in mainline boards).
This change removes the platform-data initialization from the driver, since
it is mostly dead code now.
Some definitions [from the platform data at91_adc.h include] have been
moved in the driver, since they are needed in the driver.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20200930135048.11530-5-alexandru.ardelean@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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We want the staging/IIO fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We need the staging fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc driver updates from Greg KH:
"Here is the big char/misc driver update for 5.11-rc1.
Continuing the tradition of previous -rc1 pulls, there seems to be
more and more tiny driver subsystems flowing through this tree.
Lots of different things, all of which have been in linux-next for a
while with no reported issues:
- extcon driver updates
- habannalab driver updates
- mei driver updates
- uio driver updates
- binder fixes and features added
- soundwire driver updates
- mhi bus driver updates
- phy driver updates
- coresight driver updates
- fpga driver updates
- speakup driver updates
- slimbus driver updates
- various small char and misc driver updates"
* tag 'char-misc-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (305 commits)
extcon: max77693: Fix modalias string
extcon: fsa9480: Support TI TSU6111 variant
extcon: fsa9480: Rewrite bindings in YAML and extend
dt-bindings: extcon: add binding for TUSB320
extcon: Add driver for TI TUSB320
slimbus: qcom: fix potential NULL dereference in qcom_slim_prg_slew()
siox: Make remove callback return void
siox: Use bus_type functions for probe, remove and shutdown
spmi: Add driver shutdown support
spmi: fix some coding style issues at the spmi core
spmi: get rid of a warning when built with W=1
uio: uio_hv_generic: use devm_kzalloc() for private data alloc
uio: uio_fsl_elbc_gpcm: use device-managed allocators
uio: uio_aec: use devm_kzalloc() for uio_info object
uio: uio_cif: use devm_kzalloc() for uio_info object
uio: uio_netx: use devm_kzalloc() for or uio_info object
uio: uio_mf624: use devm_kzalloc() for uio_info object
uio: uio_sercos3: use device-managed functions for simple allocs
uio: uio_dmem_genirq: finalize conversion of probe to devm_ handlers
uio: uio_dmem_genirq: convert simple allocations to device-managed
...
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The driver core ignores the return value of the remove callback, so
don't give siox drivers the chance to provide a value.
All siox drivers only allocate devm-managed resources in
.probe, so there is no .remove callback to fix.
Tested-by: Thorsten Scherer <t.scherer@eckelmann.de>
Acked-by: Thorsten Scherer <t.scherer@eckelmann.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20201125093106.240643-3-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add new shutdown() method. Use it in the standard driver model style.
Link: https://lore.kernel.org/r/1603187810-30481-2-git-send-email-hsin-hsiung.wang@mediatek.com
Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20201210023344.2838141-4-sboyd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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rtsx_pcr:
add callback functions to support runtime PM
add delay_work to put device to D3 after idle
over 10 sec
rts5249:
add extra init flow for rtd3 and set rtd3_en from
config setting
rtsx_pci_sdmmc:
child device support autosuspend
Signed-off-by: Ricky Wu <ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/20201202065857.19412-1-ricky_wu@realtek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add API to support vtag in communication on mei bus.
Add mei_cldev_send_vtag, mei_cldev_recv_vtag and
mei_cldev_recv_nonblock_vtag functions to allow sending a message
with vtag set and to receive vtag of an incoming message.
Cc: Sean Z Huang <sean.z.huang@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20201116125612.1660971-1-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire into char-misc-next
Vinod writes:
soundwire updates for 5.11-rc1
Updates for last PR for this year contain:
- Improvements from Intel for port interrupt handling
- SDCA cascade interrupt support
- runtime pm for master device
* tag 'soundwire-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
soundwire: intel: fix another unused-function warning
soundwire: master: use pm_runtime_set_active() on add
soundwire: qcom: Fix build failure when slimbus is module
soundwire: bus: only clear valid DPN interrupts
soundwire: bus: only clear valid DP0 interrupts
soundwire: registers: add definitions for clearable interrupt fields
soundwire: bus: reset slave_notify status at each loop
soundwire: bus: add comments to explain interrupt loop filter
soundwire: SDCA: detect sdca_cascade interrupt
soundwire: Fix DEBUG_LOCKS_WARN_ON for uninitialized attribute
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DP0 has reserved fields and the read-only SDCA_CASCADE bit. We should
not try to write values in these fields, so add a formal definition
for clearable interrupts to be used in DP0 interrupt handling.
DPN also has reserved fields so add definitions for clearable
interrupts as well.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20201124013318.8963-4-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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We want the fixes in here, and this resolves a merge issue with
drivers/misc/habanalabs/common/memory.c.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mani/mhi into char-misc-next
Manivannan writes:
MHI patches for v5.11
Here is the MHI patch set for v5.11. Most of the patches are cleanups and fixes
but there are some noticeable changes too:
1. Loic finally removed the auto-start option from the channel parameters of the
MHI controller. It is the duty of the client drivers like qrtr to start/stop the
channels when required, so we decided to remove this option. As a side effect,
we changed the qrtr driver to start the channels during its probe and removed
the auto-start option from ath11k controller.
**NOTE** Since these changes spawns both MHI and networking trees, the patches
are maintained in an immutable branch [1] and pulled into both mhi-next and
ath11k-next branches. The networking patches got acks from ath11k and networking
maintainers as well.
2. Loic added a generic MHI pci controller driver. This driver will be used by
the PCI based Qualcomm modems like SDX55 and exposes channels such as QMI,
IP_HW0, IPCR etc...
3. Loic fixed the MHI device hierarchy by maintaining the correct parent child
relationships. Earlier all MHI devices lived in the same level under the parent
device like PCIe. But now, the MHI devices belonging to channels will become the
children of controller MHI device.
4. Finally Loic also improved the MHI device naming by using indexed names such
as mhi0, mhi1, etc... This will break the userspace applications depending on
the old naming convention but since the only one user so far is Jeff Hugo's AI
accelerator apps, we decided to make this change now itself with his agreement.
5. Bhaumik fixed the qrtr driver by stopping the channels during remove. This
patch also got ack from networking maintainer and we decided to take it through
MHI tree (via immutable branch) since we already had a qrtr change.
[1] https://git.kernel.org/pub/scm/linux/kernel/git/mani/mhi.git/log/?h=mhi-ath11k-immutable
* tag 'mhi-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mani/mhi: (30 commits)
mhi: pci_generic: Fix implicit conversion warning
bus: mhi: core: Fix error handling in mhi_register_controller()
bus: mhi: core: Fix device hierarchy
bus: mhi: core: Indexed MHI controller name
net: qrtr: Unprepare MHI channels during remove
bus: mhi: core: Remove MHI event ring IRQ handlers when powering down
bus: mhi: core: Mark and maintain device states early on after power down
bus: mhi: core: Separate system error and power down handling
bus: mhi: core: Check for IRQ availability during registration
bus: mhi: core: Move to an error state on mission mode failure
bus: mhi: core: Use appropriate label in firmware load handler API
bus: mhi: core: Move to an error state on any firmware load failure
bus: mhi: core: Prevent sending multiple RDDM entry callbacks
bus: mhi: core: Move to SYS_ERROR regardless of RDDM capability
bus: mhi: core: Skip device wake in error or shutdown states
bus: mhi: core: Move to using high priority workqueue
bus: mhi: core: Use appropriate names for firmware load functions
bus: mhi: core: Skip RDDM download for unknown execution environment
bus: mhi: core: Rename RDDM download function to use proper words
bus: mhi: core: Remove unused mhi_fw_load_worker() declaration
...
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Today the MHI controller name is simply cloned from the underlying
bus device (its parent), that gives the following device structure
for e.g. a MHI/PCI controller:
devices/pci0000:00/0000:00:01.2/0000:02:00.0/0000:02:00.0
devices/pci0000:00/0000:00:01.2/0000:02:00.0/0000:02:00.0/0000:02:00.0_IPCR
...
That's quite misleading/confusing and can cause device registering
issues because of duplicate dev name (e.g. if a PCI device register
two different MHI instances).
This patch changes MHI core to create indexed mhi controller names
(mhi0, mhi1...) in the same way as other busses (i2c0, usb0...).
The previous example becomes:
devices/pci0000:00/0000:00:01.2/0000:02:00.0/mhi0
devices/pci0000:00/0000:00:01.2/0000:02:00.0/mhi0/mhi0_IPCR
...
v2: move index field at the end of mhi_controller struct (before bool)
to avoid breaking well packed alignment.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
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MHI work is currently scheduled on the global/system workqueue and can
encounter delays on a stressed system. To avoid those unforeseen
delays which can hamper bootup or shutdown times, use a dedicated high
priority workqueue instead of the global/system workqueue.
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
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mhi_download_rddm_img() uses a shorter version of the word image.
Expand it and rename the function to mhi_download_rddm_image().
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
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The mhi_get_exec_env() APIs can be used by the controller drivers
to query the execution environment of the MHI device. Expose it
so it can be used in some scenarios to determine behavior of
controllers.
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
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Add a devm_fpga_mgr_register() API that can be used to register a FPGA
Manager that was created using devm_fpga_mgr_create().
Introduce a struct fpga_mgr_devres that makes the devres
allocation a little bit more readable and gets reused for
devm_fpga_mgr_create() devm_fpga_mgr_register().
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20201115195127.284487-2-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We need the fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Introduce support into the nvmem core for arrays of register ranges
that should not result in actual device access. For these regions a
constant byte (repeated) is returned instead on read, and writes are
quietly ignored and returned as successful.
This is useful for instance if certain efuse regions are protected
from access by Linux because they contain secret info to another part
of the system (like an integrated modem).
Signed-off-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20201127102837.19366-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We need the char/misc fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The definitions for (devm_)uio_register_device should be
at the header file, as the macros are there. The ones
inside uio.c refer, instead, to __(devm_)uio_register_device.
Update them and add new kernel-doc markups for the macros.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/82ab7b68d271aeda7396e369ff8a629491b9d628.1603469755.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the big driver core updates for 5.11-rc1
This time there was a lot of different work happening here for some
reason:
- redo of the fwnode link logic, speeding it up greatly
- auxiliary bus added (this was a tag that will be pulled in from
other trees/maintainers this merge window as well, as driver
subsystems started to rely on it)
- platform driver core cleanups on the way to fixing some long-time
api updates in future releases
- minor fixes and tweaks.
All have been in linux-next with no (finally) reported issues. Testing
there did helped in shaking issues out a lot :)"
* tag 'driver-core-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (39 commits)
driver core: platform: don't oops in platform_shutdown() on unbound devices
ACPI: Use fwnode_init() to set up fwnode
misc: pvpanic: Replace OF headers by mod_devicetable.h
misc: pvpanic: Combine ACPI and platform drivers
usb: host: sl811: Switch to use platform_get_mem_or_io()
vfio: platform: Switch to use platform_get_mem_or_io()
driver core: platform: Introduce platform_get_mem_or_io()
dyndbg: fix use before null check
soc: fix comment for freeing soc_dev_attr
driver core: platform: use bus_type functions
driver core: platform: change logic implementing platform_driver_probe
driver core: platform: reorder functions
driver core: make driver_probe_device() static
driver core: Fix a couple of typos
driver core: Reorder devices on successful probe
driver core: Delete pointless parameter in fwnode_operations.add_links
driver core: Refactor fw_devlink feature
efi: Update implementation of add_links() to create fwnode links
of: property: Update implementation of add_links() to create fwnode links
driver core: Use device's fwnode to check if it is waiting for suppliers
...
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Commit 01bb86b380a3 ("driver core: Add fwnode_init()") was supposed to
fix up all instances of fwnode creation to use fwnode_init(). But looks
like this instance was missed. This causes a NULL pointer dereference
during device_add() [1]. So, fix it.
[ 60.792324][ T1] Call trace:
[ 60.795495][ T1] device_add+0xf60/0x16b0
__fw_devlink_link_to_consumers at drivers/base/core.c:1583
(inlined by) fw_devlink_link_device at drivers/base/core.c:1726
(inlined by) device_add at drivers/base/core.c:3088
[ 60.799813][ T1] platform_device_add+0x274/0x628
[ 60.804833][ T1] acpi_iort_init+0x9d8/0xc50
[ 60.809415][ T1] acpi_init+0x45c/0x4e8
[ 60.813556][ T1] do_one_initcall+0x170/0xb70
[ 60.818224][ T1] kernel_init_freeable+0x6a8/0x734
[ 60.823332][ T1] kernel_init+0x18/0x12c
[ 60.827566][ T1] ret_from_fork+0x10/0x1c
[ 60.838756][ T1] ---[ end trace fa5c8ce17a226d83 ]---
[1] - https://lore.kernel.org/linux-arm-kernel/02e7047071f0b54b046ac472adeeb3fafabc643c.camel@redhat.com/
Fixes: 01bb86b380a3 ("driver core: Add fwnode_init()")
Reported-by: Qian Cai <qcai@redhat.com>
Suggested-by: Robin Murphy <robin.murphy@arm.com>
Tested-by: Marc Zyngier <maz@kernel.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201211202629.2164655-1-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There are at least few existing users of the proposed API which
retrieves either MEM or IO resource from platform device.
Make it common to utilize in the existing and new users.
Cc: Eric Auger <eric.auger@redhat.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: kvm@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Cc: Peng Hao <peng.hao2@zte.com.cn>
Cc: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20201209203642.27648-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The struct device input to add_links() is not used for anything. So
delete it.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-18-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The current implementation of fw_devlink is very inefficient because it
tries to get away without creating fwnode links in the name of saving
memory usage. Past attempts to optimize runtime at the cost of memory
usage were blocked with request for data showing that the optimization
made significant improvement for real world scenarios.
We have those scenarios now. There have been several reports of boot
time increase in the order of seconds in this thread [1]. Several OEMs
and SoC manufacturers have also privately reported significant
(350-400ms) increase in boot time due to all the parsing done by
fw_devlink.
So this patch uses all the setup done by the previous patches in this
series to refactor fw_devlink to be more efficient. Most of the code has
been moved out of firmware specific (DT mostly) code into driver core.
This brings the following benefits:
- Instead of parsing the device tree multiple times during bootup,
fw_devlink parses each fwnode node/property only once and creates
fwnode links. The rest of the fw_devlink code then just looks at these
fwnode links to do rest of the work.
- Makes it much easier to debug probe issue due to fw_devlink in the
future. fw_devlink=on blocks the probing of devices if they depend on
a device that hasn't been added yet. With this refactor, it'll be very
easy to tell what that device is because we now have a reference to
the fwnode of the device.
- Much easier to add fw_devlink support to ACPI and other firmware
types. A refactor to move the common bits from DT specific code to
driver core was in my TODO list as a prerequisite to adding ACPI
support to fw_devlink. This series gets that done.
[1] - https://lore.kernel.org/linux-omap/ea02f57e-871d-cd16-4418-c1da4bbc4696@ti.com/
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-17-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This function is a wrapper around fwnode_operations.add_links().
This function parses each node in a fwnode tree and create fwnode links
for each of those nodes. The information for creating the fwnode links
(the supplier and consumer fwnode) is obtained by parsing the properties
in each of the fwnodes.
This function also ensures that no fwnode is parsed more than once by
marking the fwnodes as parsed.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-13-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Change the meaning of fwnode_operations.add_links() to just create
fwnode links by parsing the properties of a given fwnode.
This patch doesn't actually make any code changes. To keeps things more
digestable, the actual functional changes come in later patches in this
series.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-12-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add fwnode_is_ancestor_of() helper function to check if a fwnode is an
ancestor of another fwnode.
Add fwnode_get_next_parent_dev() helper function that take as input a
fwnode and finds the closest ancestor fwnode that has a corresponding
struct device and returns that struct device.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-11-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add support for creating supplier-consumer links between fwnodes. It is
intended for internal use the driver core and generic firmware support
code (eg. Device Tree, ACPI), so it is simple by design and the API
provided is limited.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-9-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There are multiple locations in the kernel where a struct fwnode_handle
is initialized. Add fwnode_init() so that we have one way of
initializing a fwnode_handle.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-8-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit 716a7a25969003d82ab738179c3f1068a120ed11.
The fw_devlink_pause/resume() APIs added by the commit being reverted
were a first cut attempt at optimizing boot time. But these APIs don't
fully solve the problem and are very fragile (can only be used for the
top level devices being added). This series replaces them with a much
better optimization that works for all device additions and also has the
benefit of reducing the complexity of the firmware (DT, EFI) specific
code and abstracting out common code to driver core.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-7-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit ec7bd78498f29680f536451fbdf9464e851273ed.
This field rename was done to reuse defer_syc list head for multiple
lists. That's not needed anymore and this list head will only be used
for defer sync. So revert this patch to avoid conflicts with the other
reverts coming after this.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-3-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This reverts commit 2451e746478a6a6e981cfa66b62b791ca93b90c8.
fw_devlink_pause/resume() was an incomplete attempt at boot time
optimization. That's going to get replaced by a much better optimization
at the end of the series. Since fw_devlink_pause/resume() is going away,
changes made for that can also go away.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-2-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Specify type alignment when declaring linker-section match-table entries
to prevent gcc from increasing alignment and corrupting the various
tables with padding (e.g. timers, irqchips, clocks, reserved memory).
This is specifically needed on x86 where gcc (typically) aligns larger
objects like struct of_device_id with static extent on 32-byte
boundaries which at best prevents matching on anything but the first
entry. Specifying alignment when declaring variables suppresses this
optimisation.
Here's a 64-bit example where all entries are corrupt as 16 bytes of
padding has been inserted before the first entry:
ffffffff8266b4b0 D __clk_of_table
ffffffff8266b4c0 d __of_table_fixed_factor_clk
ffffffff8266b5a0 d __of_table_fixed_clk
ffffffff8266b680 d __clk_of_table_sentinel
And here's a 32-bit example where the 8-byte-aligned table happens to be
placed on a 32-byte boundary so that all but the first entry are corrupt
due to the 28 bytes of padding inserted between entries:
812b3ec0 D __irqchip_of_table
812b3ec0 d __of_table_irqchip1
812b3fa0 d __of_table_irqchip2
812b4080 d __of_table_irqchip3
812b4160 d irqchip_of_match_end
Verified on x86 using gcc-9.3 and gcc-4.9 (which uses 64-byte
alignment), and on arm using gcc-7.2.
Note that there are no in-tree users of these tables on x86 currently
(even if they are included in the image).
Fixes: 54196ccbe0ba ("of: consolidate linker section OF match table declarations")
Fixes: f6e916b82022 ("irqchip: add basic infrastructure")
Cc: stable <stable@vger.kernel.org> # 3.9
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20201123102319.8090-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core into driver-core-next
Auxiliary Bus support tag for 5.11-rc1
This is a signed tag for other subsystems to be able to pull in the
auxiliary bus support into their trees for the 5.11-rc1 merge.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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