- 16 Dec, 2018 16 commits
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Tomasz Duszynski authored
Measuring particulate matter in ug / m3 (micro-grams per cubic meter) is de facto standard. Existing air quality sensors usually follow this convention and are capable of returning measurements using this unit. IIO currently does not offer suitable channel type for this type of measurements hence this patch adds this. In addition, extra modifiers are introduced used for distinguishing between fine pm1, pm2p5 and coarse pm4, pm10 particle measurements, i.e IIO_MOD_PM1, IIO_MOD_PM25 and IIO_MOD_PM4, IIO_MOD_PM10. pmX consists of particles with aerodynamic diameter less or equal to X micrometers. Signed-off-by:
Tomasz Duszynski <tduszyns@gmail.com> Acked-by:
Matt Ranostay <matt.ranostay@konsulko.com> Signed-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Hardik Singh Rathore authored
Initialization is unnecessary when the variable is written before it is read. There were some occasions in which the driver would initialize `ret' during declaration without need. Signed-off-by:
Hardik Singh Rathore <hardiksingh.k@gmail.com> Signed-off-by:
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Slawomir Stepien authored
The ad7280_attr_init function has been split into more specific functions to increase the code readability. Signed-off-by:
Slawomir Stepien <sst@poczta.fm> Signed-off-by:
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Slawomir Stepien authored
The ad7280_channel_init function has been split into more specific functions to increase the code readability. The setting of channel's scan_type.shift to 0, has been removed, since it is the default value. Signed-off-by:
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Marcelo Schmitt authored
Add a devicetree documentation for the ad5933 and ad5934 impedance converter, network analyzer. Signed-off-by:
Marcelo Schmitt <marcelo.schmitt1@gmail.com> Signed-off-by:
Gabriel Capella <gabriel@capella.pro> Co-Developed-by:
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Marcelo Schmitt authored
Add the option to specify the external clock (MCLK) using the clock framework. Also remove the old platform data structure. Signed-off-by:
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Marcelo Schmitt authored
Set a single voltage regulator for all voltage references. Remove voltage reference value from default platafrom data struct. Signed-off-by:
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Shreeya Patel authored
ADT7316 driver no more uses platform data and hence use device tree data instead of platform data for assigning irq_type field and implement this in adt7316_irq_setup function. Switch case figures out the type of irq and if it's the default case then assign the default value to the irq_type i.e. irq_type = IRQF_TRIGGER_LOW Move devm_request_threaded_irq() and assignment of chip->config1 into the adt7316_setup_irq() to unclutter the code in probe function. Signed-off-by:
Shreeya Patel <shreeya.patel23498@gmail.com> Signed-off-by:
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Hardik Singh Rathore authored
Initialization is unnecessary when the variable is written before it is read. There were some occasions in which the driver would initialize `ret' during declaration without need. Purely a cosmetic change with no functional impact. Signed-off-by:
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Jeremy Fertic authored
Change LDCA to LDAC. Signed-off-by:
Jeremy Fertic <jeremyfertic@gmail.com> Signed-off-by:
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Jeremy Fertic authored
Based on the output of adt7316_show_all_DAC_update_modes() and adt7316_show_DAC_update_mode(), adt7316_store_DAC_update_mode() should expect the user to enter an integer input from 0 to 3. The user input is currently expected to account for the actual bit positions in the register. For example, choosing option 3 would require a write of 0x30 (actually 48 since it expects base 10). To address this inconsistency, create a shift macro to be used in the valid input check as well as the calculation for the register write. Signed-off-by:
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Jeremy Fertic authored
The option to allow the external vref to bypass the reference buffer is only available for adt7316/7/8. Remove the attributes for adt751x as well as the chip->id checks from the show and store functions. Signed-off-by:
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Jeremy Fertic authored
With adt7516/7/9, internal vref is available for dacs a and b, dacs c and d, or all dacs. The driver doesn't currently support internal vref for all dacs. Change the else if to an if so both bits are checked rather than just one or the other. Signed-off-by:
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Jeremy Fertic authored
The dac internal vref settings are part of the ldac config register rather than the dac config register. Change the variable being used so the read returns the correct result. Whilst a fix, it is for a driver in heavy churn so do not backport to stable without taking considerable care and testing. Signed-off-by:
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Jeremy Fertic authored
ADT7316_DA_EN_VIA_DAC_LDCA is set when the dac and ldac registers are being used to update the dacs instead of the ldac pin. ADT7516_SEL_AIN3 is an adc input that shares the ldac pin. Only set these bits if an ldac pin is not being used. This could be backported to stable, but note there are various other bugs that probably make that a waste of time. Signed-off-by:
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Jeremy Fertic authored
Change two register addresses and one bit definition to match the datasheet. Note that there are many issues in this driver so I would not suggest backporting these fixes to stable trees. Signed-off-by:
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- 13 Dec, 2018 1 commit
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Greg Kroah-Hartman authored
Merge tag 'iio-for-4.21b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: Second set of IIO new device support, features and cleanups for the 4.21 cycle. Staging graduation * ad2s90 - Driver for this resolver to digital chip. New drivers and device support. * ad5686 - Add support for ad5310r DAC and associated fix in value read back. * exynos-adc - Support for S5PV210 which is slightly different from other parts. * mcp41010 - Driver supporting MCP41010, MCP41050, MCP41100, MCP42010, MCP42050 and MCP42100 microchip potentiometers. New ACPI ids. * ak8975 - AKM9911 ACPI HID. * kxcjk-1013 - KXJ2109 ACPI HID. - KIOX010A ACPI HID. New features * ad5933 - Explicit DT binding. * ad2s90 - Explicit DT binding including dropping spi setup that is done via dt in favour of verifying the settings form DT. * adt7316 - Explicit DT binding and support for gpio, irq_flags etc. * stm32-adc - Runtime power management. Minor fixes and cleanups * core - Protect against missing info structure. * ad2s90 - SPDX - Add documentation fo the mutex. * ad7280a - Check allocation failure. - Fix an accidental replacement of an error return. * adt7316 - Switch some variables to be local and rename for consistency with other drivers. - Revert a false handling of 0 as an error introduced earlier this cycle. * bmi160 - Use devm functions throughout probe() to avoid need for remove(). * hid-sensor-hub - White space cleanup. * hts221 - MAINTAINERS entry. * lis302 - Use generic name in the DT binding doc. * Messon-saradc - Check for allocation error. - Fix some presented clock names that break clk debugfs. * qcom-spmi-adc - A fix for initialization of the prescale property. Came late in the cycle, so merge window is probably the best route for this. * st_lsm6dsx - Allow for variable read length to support wider range of slave devices. * tag 'iio-for-4.21b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (37 commits) iio: adc: qcom-spmi-adc5: Initialize prescale properly dt-bindings: iio: adc: exynos-adc: Add S5PV210 variant iio: adc: Allow selection of Exynos ADC on S5PV210 iio: adc: exynos-adc: Add S5PV210 variant iio: bmi160: use all devm functions in probe iio: dac: ad5686: fix bit shift read register iio:dac:ad5686: Add AD5310R support Revert "Staging: iio: adt7316: Add an extra check for 'ret' equals to 0" dt-bindings: iio: accel: use a generic node name for lis302 iio: core: check 'info' value before registering the device staging: iio: adc: ad7280a: fix overwrite of the returned value staging: iio: adc: ad7280a: check for devm_kasprint() failure iio: humidity: hts221: add entry in MAINTAINERS file iio: magnetometer: ak8975: Add the "AKM9911" ACPI HID staging:iio:ad2s90: Move out of staging staging:iio:ad2s90: Add comment to device state mutex staging:iio:ad2s90: Replace license text w/ SPDX identifier dt-bindings:iio:resolver: Add docs for ad2s90 staging:iio:ad2s90: Add max frequency check at probe staging:iio:ad2s90: Remove spi setup that should be done via dt ...
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- 12 Dec, 2018 23 commits
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Evan Green authored
adc5_get_dt_data uses a local, prop, feeds it to adc5_get_dt_channel_data, and then puts the result into adc->chan_props. The problem is adc5_get_dt_channel_data may not initialize that structure fully, so a garbage value is used for prescale if the optional "qcom,pre-scaling" is not defined in DT. adc5_read_raw then uses this as an array index, generating a crash that looks like this: [ 6.683186] Unable to handle kernel paging request at virtual address ffffff90e78c7964 Call trace: qcom_vadc_scale_code_voltage_factor+0x74/0x104 qcom_vadc_scale_hw_calib_die_temp+0x20/0x60 qcom_adc5_hw_scale+0x78/0xa4 adc5_read_raw+0x3d0/0x65c iio_channel_read+0x240/0x30c iio_read_channel_processed+0x10c/0x150 qpnp_tm_get_temp+0xc0/0x40c of_thermal_get_temp+0x7c/0x98 thermal_zone_get_temp+0xac/0xd8 thermal_zone_device_update+0xc0/0x38c qpnp_tm_probe+0x624/0x81c platform_drv_probe+0xe4/0x11c really_probe+0x188/0x3fc driver_probe_device+0xb8/0x188 __device_attach_driver+0x114/0x180 bus_for_each_drv+0xd8/0x118 __device_attach+0x180/0x27c device_initial_probe+0x20/0x2c bus_probe_device+0x78/0x124 deferred_probe_work_func+0xfc/0x138 process_one_work+0x3d8/0x8b0 process_scheduled_works+0x48/0x6c worker_thread+0x488/0x7cc kthread+0x24c/0x264 ret_from_fork+0x10/0x18 Unfortunately, when I went to add the initializer for this and tried to boot it, my machine shut down immediately, complaining that it was hotter than the sun. It appears that adc5_chans_pmic and adc5_chans_rev2 were initializing prescale_index as if it were directly a divisor, rather than the index into adc5_prescale_ratios that it is. Fix the uninitialized value, and change the static initialization to use indices into adc5_prescale_ratios. Signed-off-by:
Evan Green <evgreen@chromium.org> Reviewed-by:
Matthias Kaehlcke <mka@chromium.org> Cc: <Stable@vger.kernel.org> Signed-off-by:
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Jonathan Bakker authored
Add information about new compatible for S5PV210 Signed-off-by:
Jonathan Bakker <xc-racer2@live.ca> Signed-off-by:
Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com> Signed-off-by:
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Jonathan Bakker authored
Make it possible to use Exynos ADC driver on S5PV210 based devices. Signed-off-by:
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Jonathan Bakker authored
S5PV210's ADC variant is almost the same as v1 except that it has 10 channels and doesn't require the pmu register Signed-off-by:
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Nishad Kamdar authored
Commit 2a54e325 ("staging: mt7621-mmc: Remove #if 0 blocks in sd.c") does not completely remove an #if 0 block in sd.c. This causes the function msdc_select_clksrc() which was eariler not compiled, to be compiled. That causes an error - MSDC_CLKSRC_REG is not defined. This patch completely removes the #if 0 block Reported-by:
NeilBrown <neil@brown.name> Fixes: 2a54e325 ("staging: mt7621-mmc: Remove #if 0 blocks in sd.c") Signed-off-by:
Nishad Kamdar <nishadkamdar@gmail.com> Reviewed-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Stefan Wahren authored
As per default the GPU memory config of the Raspberry Pi isn't sufficient for the camera usage. Even worse the bcm2835 camera driver doesn't provide a helpful error message in this case. So let's add a hint to point the user to the likely cause. Signed-off-by:
Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by:
Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Reviewed-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Stefan Wahren authored
Currently there is only a catch-all info message which print the relevant error code without any context. So add more specific error messages in order to narrow down possible issues. Signed-off-by:
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Stefan Wahren authored
Just like the bcm2835-video make this a platform driver which is probed by vchiq. In order to change the number of channels use a module parameter instead, but use the maximum as default. Signed-off-by:
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Stefan Wahren authored
There is not much value behind this boilerplate, so use module_platform_driver() instead. Signed-off-by:
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Stefan Wahren authored
Enable the compilation test for bcm2835-audio to gain more build coverage. Signed-off-by:
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Stefan Wahren authored
Following Eric's commit 37b7b308 ("staging/vc04_services: Register a platform device for the camera driver.") this register the audio driver as a platform device, too. Signed-off-by:
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Stefan Wahren authored
Since the camera driver isn't probed via DT, we need to properly setup DMA. Fixes: 37b7b308 ("staging/vc04_services: Register a platform device for the camera driver.") Signed-off-by:
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Stefan Wahren authored
In order to have this more consistent between the vc04 services move the module information to the end of the file. Signed-off-by:
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Stefan Wahren authored
In order to make the module bcm2835-camera load automatically, we need to add a module alias. Fixes: 4bebb031 ("staging/bcm2835-camera: Set ourselves up as a platform driver.") Signed-off-by:
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Stefan Wahren authored
Abort the probing of the camera driver in case there isn't a camera actually connected to the Raspberry Pi. This solution also avoids a NULL ptr dereference of mmal instance on driver unload. Fixes: 7b3ad5ab ("staging: Import the BCM2835 MMAL-based V4L2 camera driver.") Signed-off-by:
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NeilBrown authored
The device-tree checking code sees node names "i2c" and "spi" in the pinctrl definition and thinks these are defining i2c or spi devices, and complains that they look wrong. So add a '0' to the end of each name (much like "uart" and "rgmii" have numbers at the end) to avoid the warning. Signed-off-by:
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NeilBrown authored
cmd_buf is only used when MT6575_SD_DEBUG is defined. So only declare it in that case. Signed-off-by:
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NeilBrown authored
<linux/interrupt.h> is sometimes included by other include files, and sometimes not, depending on config, particularly CONFIG_HIGHMEM. So include it explicitly rather than relying on implicit inclusion. Signed-off-by:
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NeilBrown authored
This code generates a waring as PHY_GBIT_FEATURES is "long" but ->supported in "int". It looks likely that "PHY_1000BT_FEATURES" is the correct define to use - it is intended to be used with the ->features field. Signed-off-by:
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NeilBrown authored
Since commit bb276262 ("mtd: spi-nor: only apply reset hacks to broken hardware"), we need to mark the spi-nor as "broken" for reboot to work. Note that nothing is actually broken here. The hardware-watchdog in the SoC isn't wired in a way that works, but then the board doesn't claim to support a hardware watchdog - and the SPI certain isn't "broken". This causes an annoying warning on every boot, but that is better than failing on ever reboot. Signed-off-by:
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NeilBrown authored
Since commit f8c55dc6 ("MIPS: use generic dma noncoherent ops for simple noncoherent platforms") changed MIPS dma handling, the mmc driver fails because it doesn't have a dma mask is set. So set the correct dma mask. Signed-off-by:
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NeilBrown authored
Since commit f8c55dc6 ("MIPS: use generic dma noncoherent ops for simple noncoherent platforms") changed MIPS dma handling, the eth driver fails because the dma mask is set on the wrong 'struct device'. Move the setting to the correct struct device. Signed-off-by:
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Arnd Bergmann authored
I had started the removal of semaphores in this driver without knowing that Nicolas Saenz Julienne also worked on this. In case of the "remote event" infrastructure, my solution seemed significantly better, so I'm proposing this as a change on top. The problem with using either semaphores or completions here is that it's an overly complex way of waking up a thread, and it looks like the 'count' of the semaphore can easily get out of sync, even though I found it hard to come up with a specific example. Changing it to a 'wait_queue_head_t' instead of a completion simplifies this by letting us wait directly on the 'event->fired' variable that is set by the videocore. Another simplification is passing the wait queue directly into the helper functions instead of going through the fragile logic of recording the offset inside of a structure as part of a shared memory variable. This also avoids one uncached memory read and should be faster. Note that I'm changing it back to 'killable' after the previous patch changed 'killable' to 'interruptible', apparently based on a misunderstanding of the subtle down_interruptible() macro override in vchiq_killable.h. Fixes: f27e47bc ("staging: vchiq: use completions instead of semaphores") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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