- 29 Sep, 2020 23 commits
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Fabrice Gasnier authored
When the ADC is runtime suspended and starting a conversion, the stm32-adc driver calls pm_runtime_get_sync() that gets cascaded to the parent (e.g. runtime resume of stm32-adc-core driver). This also kicks the autosuspend delay (e.g. 2s) of the parent. Once the ADC is active, calling pm_runtime_get_sync() again (upon a new capture) won't kick the autosuspend delay for the parent (stm32-adc-core driver) as already active. Currently, this makes the stm32-adc-core driver go in suspend state every 2s when doing slow polling. As an example, doing a capture, e.g. cat in_voltageY_raw at a 0.2s rate, the auto suspend delay for the parent isn't refreshed. Once it expires, the parent immediately falls into runtime suspended state, in between two captures, as soon as the child driver falls into runtime suspend state: - e.g. after 2s, + child calls pm_runtime_put_autosuspend() + 100ms autosuspend delay of the child. - stm32-adc-core switches off regulators, clocks and so on. - They get switched on back again 100ms later in this example (at 2.2s). So, use runtime_idle() callback in stm32-adc-core driver to call pm_runtime_mark_last_busy() for the parent driver (stm32-adc-core), to avoid this. Fixes: 9bdbb113 ("iio: adc: stm32-adc: add power management support") Signed-off-by:
Fabrice Gasnier <fabrice.gasnier@st.com> Reviewed-by:
Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/1593615328-5180-1-git-send-email-fabrice.gasnier@st.comSigned-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Eugen Hristev authored
After the move of the postenable code to preenable, the DMA start was done before the DMA init, which is not correct. The DMA is initialized in set_watermark. Because of this, we need to call the DMA start functions in set_watermark, after the DMA init, instead of preenable hook, when the DMA is not properly setup yet. Fixes: f3c034f6 ("iio: at91-sama5d2_adc: adjust iio_triggered_buffer_{predisable,postenable} positions") Signed-off-by:
Eugen Hristev <eugen.hristev@microchip.com> Link: https://lore.kernel.org/r/20200923121748.49384-1-eugen.hristev@microchip.com Cc: <Stable@vger.kernel.org> Signed-off-by:
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Nuno Sá authored
When returning or breaking early from a `for_each_available_child_of_node()` loop, we need to explicitly call `of_node_put()` on the child node to possibly release the node. Fixes: 506d2e31 ("iio: adc: Add driver support for AD7292") Signed-off-by:
Nuno Sá <nuno.sa@analog.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200925091045.302-2-nuno.sa@analog.comSigned-off-by:
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Nuno Sá authored
When returning or breaking early from a `for_each_available_child_of_node()` loop, we need to explicitly call `of_node_put()` on the child node to possibly release the node. Fixes: f110f318 ("iio: temperature: Add support for LTC2983") Signed-off-by:
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Julia Lawall authored
Replace commas with semicolons. What is done is essentially described by the following Coccinelle semantic patch (http://coccinelle.lip6.fr/): // <smpl> @@ expression e1,e2; @@ e1 -, +; e2 ... when any // </smpl> Signed-off-by:
Julia Lawall <Julia.Lawall@inria.fr> Reviewed-by:
David Lechner <david@lechnology.com> Link: https://lore.kernel.org/r/1601233948-11629-16-git-send-email-Julia.Lawall@inria.frSigned-off-by:
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Alexandru Ardelean authored
For some embedded systems, a workflow involving external kernel modules that implement IIO devices is more practical than working with in-tree sources. Kconfig symbols without any titles do not show up in menuconfig, and as such are more difficult to configure granularly, as they need to be selected by potentially unused/un-needed drivers. This change adds a title to the IIO_TRIGGERED_BUFFER Kconfig symbol. Signed-off-by:
Alexandru Ardelean <alexandru.ardelean@analog.com> Link: https://lore.kernel.org/r/20200924111758.196367-4-alexandru.ardelean@analog.comSigned-off-by:
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Alexandru Ardelean authored
For some embedded systems, a workflow involving external kernel modules that implement IIO devices is more practical than working with in-tree sources. Kconfig symbols without any titles do not show up in menuconfig, and as such are more difficult to configure granularly, as they need to be selected by potentially unused/un-needed drivers. Albeit, the IIO_TRIGGERED_EVENT is used by a single mainline driver, this could allow for some out-of-tree drivers to use this kmod. This change adds a title to the IIO_TRIGGERED_EVENT Kconfig symbol. Signed-off-by:
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Alexandru Ardelean authored
For some embedded systems, a workflow involving external kernel modules that implement IIO devices is more practical than working with in-tree sources. Kconfig symbols without any titles do not show up in menuconfig, and as such are more difficult to configure granularly, as they need to be selected by potentially unused/un-needed drivers. This change adds titles to the IIO DMA Kconfig symbols to address this. This change also updates DMAengine -> DMAEngine, which is the correct/nitpick-y name of the framework. Signed-off-by:
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Alexandru Ardelean authored
The intent here is to minimize the use of iio_buffer_set_attrs(). Since we are planning to add support for multiple IIO buffers per IIO device, the issue has to do with: 1. Accessing 'indio_dev->buffer' directly (as is done with 'iio_buffer_set_attrs(indio_dev->buffer, <attrs>)'). 2. The way that the buffer attributes would get handled or expanded when there are more buffers per IIO device. Current a sysfs kobj_type expands into a 'device' object that expands into an 'iio_dev' object. We will need to change this, so that the sysfs attributes for IIO buffers expand into IIO buffers at some point. Right now, the current IIO framework works fine for the '1 IIO device == 1 IIO buffer' case (that is now). Signed-off-by:
Guenter Roeck <groeck@chromium.org> Link: https://lore.kernel.org/r/20200923130339.997902-1-alexandru.ardelean@analog.comSigned-off-by:
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Alexandru Ardelean authored
Add entries for the AD9434 & AD9265 high-speed ADCs which are supported by the 'ad9467' driver. Better describe the family of ADCs similar to AD9467 in the description. Signed-off-by:
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Michael Hennerich authored
The AD9265 is a 16-bit, 125 MSPS analog-to-digital converter (ADC). The AD9265 is designed to support communications applications where high performance combined with low cost, small size, and versatility is desired. The ADC core features a multistage, differential pipelined architecture with integrated output error correction logic to provide 16-bit accuracy at 125 MSPS data rates and guarantees no missing codes over the full operating temperature range. The ADC features a wide bandwidth differential sample-and-hold analog input amplifier supporting a variety of user-selectable input ranges. It is suitable for multiplexed systems that switch full-scale voltage levels in successive channels and for sampling single-channel inputs at frequencies well beyond the Nyquist rate. Combined with power and cost savings over previously available ADCs, the AD9265 is suitable for applications in communications, instrumentation and medical imaging. Link: https://www.analog.com/media/en/technical-documentation/data-sheets/AD9434.pdf The driver supports the same register set as the AD9467, so the support for this chip is added to the 'ad9467' driver. Signed-off-by:
Michael Hennerich <michael.hennerich@analog.com> Signed-off-by:
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Michael Hennerich authored
The AD9434 is a 12-bit monolithic sampling analog-to-digital converter (ADC) optimized for high performance, low power, and ease of use. The part operates at up to a 500 MSPS conversion rate and is optimized for outstanding dynamic performance in wideband carrier and broadband systems. All necessary functions, including a sample-and-hold and voltage reference, are included on the chip to provide a complete signal conversion solution. The VREF pin can be used to monitor the internal reference or provide an external voltage reference (external reference mode must be enabled through the SPI port). The ADC requires a 1.8 V analog voltage supply and a differential clock for full performance operation. The digital outputs are LVDS (ANSI-644) compatible and support twos complement, offset binary format, or Gray code. A data clock output is available for proper output data timing. Link: https://www.analog.com/media/en/technical-documentation/data-sheets/AD9434.pdf The driver supports the same register set as the AD9467, so the support for this chip is added to the 'ad9467' driver. Signed-off-by:
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Alexandru Ardelean authored
There are 2 chip constants that can be added to the chip-info part. The default output-mode and the VREF mask. When adding new chips to this driver, these can be easily omitted, because these also need to be updated in 2 switch statements. However, if adding them in the chip-info constants, they are updated in a single place and propagated in both switch statements. Signed-off-by:
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Alexandru Ardelean authored
This is to encourage the use of devm_iio_dmaengine_buffer_alloc(). Currently the managed version of the DMAEngine buffer alloc is the only function used from this part of the framework. Signed-off-by:
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Wang ShaoBo authored
Make use of devm_platform_get_and_ioremap_resource() provided by driver core platform instead of duplicated analogue, dev_err() is removed because it has been done in devm_ioremap_resource(). Signed-off-by:
Wang ShaoBo <bobo.shaobowang@huawei.com> Link: https://lore.kernel.org/r/20200918083142.32816-1-bobo.shaobowang@huawei.comSigned-off-by:
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Wang ShaoBo authored
Make use of devm_platform_get_and_ioremap_resource() provided by driver core platform instead of duplicated analogue. Signed-off-by:
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Krzysztof Kozlowski authored
Use PLATFORM_DEVID_NONE define instead of "-1" value because: - it brings some meaning, - it might point attention why auto device ID was not used. Signed-off-by:
Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200921204939.20341-1-krzk@kernel.orgSigned-off-by:
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Michael Auchter authored
Add device-tree binding for ADI AD7291 ADC. Signed-off-by:
Michael Auchter <michael.auchter@ni.com> Reviewed-by:
Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200922144422.542669-2-michael.auchter@ni.comSigned-off-by:
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Michael Auchter authored
There are no in-tree users of the platform data for this driver, so remove it and convert the driver to use device tree instead. Signed-off-by:
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Alexandru Ardelean authored
Though we know that the iio_device_unregister_eventset() call is followed by the free-ing of the IIO device object, we should not make this assumption in the iio_device_unregister_eventset() function. It should allow for the clean unregistering of the event-set, allowing a re-register should we decide to implement this at some point later. Signed-off-by:
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Alexandru Ardelean authored
With the recent 'iio_dev_opaque' variable name, these two functions are looking a bit ugly. This change uses an 'ev_int' variable for the iio_device_{un}register_eventset functions to make the code a little easier to read. Signed-off-by: -
Jonathan Cameron authored
This binding is non trivial due to the range of different parts supported having several subtle quirks. Martin has helped clarify some of them. Note, I haven't restricted the amlogic,hhi-sysctrl to only be present on the relevant parts if nvmem stuff also is, but it would seem to be rather odd if it were otherwise. Perhaps we look to make this binding more restrictive at a later date. Signed-off-by:
Martin Blumenstingl <martin.blumenstingl@googlemail.com> Cc: Kevin Hilman <khilman@baylibre.com> Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20200920135436.199003-2-jic23@kernel.org
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Wang Qing authored
Change the comment typo: "definately" -> "definitely". Signed-off-by:
Wang Qing <wangqing@vivo.com> Link: https://lore.kernel.org/r/1600772818-30882-1-git-send-email-wangqing@vivo.comSigned-off-by:
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- 23 Sep, 2020 1 commit
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Rikard Falkeborn authored
The only usage of mchp_tc_ops is to assign its address to the ops field in the counter_device struct which is a const pointer. Make it const to allow the compiler to put it in read-only memory. Signed-off-by:
Rikard Falkeborn <rikard.falkeborn@gmail.com> Acked-by:
William Breathitt Gray <vilhelm.gray@gmail.com> Link: https://lore.kernel.org/r/20200922201941.41328-1-rikard.falkeborn@gmail.comSigned-off-by:
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- 22 Sep, 2020 16 commits
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Ivan Safonov authored
WIFI_REASON_CODE is duplication of enum ieee80211_reasoncode. Signed-off-by:
Ivan Safonov <insafonov@gmail.com> Link: https://lore.kernel.org/r/20200919212443.264126-1-insafonov@gmail.comSigned-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alex Dewar authored
In hi3670_phy_probe(), when reading property tx-vboost-lvl fails, its default value is assigned to priv->eye_diagram_param, rather than to priv->tx_vboost_lvl. Fix this. Fixes: 8971a3b8 ("staging: hikey9xx: add USB physical layer for Kirin 3670") Addresses-Coverity: CID 1497107: Incorrect expression (COPY_PASTE_ERROR) Signed-off-by:
Alex Dewar <alex.dewar90@gmail.com> Link: https://lore.kernel.org/r/20200921212146.34662-1-alex.dewar90@gmail.comSigned-off-by:
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Michael Straube authored
Clean up comparsions to NULL reported by checkpatch. if (x == NULL) -> if (!x) if (x != NULL) -> if (x) Signed-off-by:
Michael Straube <straube.linux@gmail.com> Link: https://lore.kernel.org/r/20200919150823.16923-3-straube.linux@gmail.comSigned-off-by:
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Michael Straube authored
Move 'else if' to the same line as the closing brace of the corresponding 'if' to follow kernel coding style. Signed-off-by:
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Michael Straube authored
Add missing and remove unnecessary blank lines to clear checkpatch issues. CHECK: Please use a blank line after function/struct/union/enum declarations CHECK: Blank lines aren't necessary before a close brace '}' CHECK: Please don't use multiple blank lines CHECK: Blank lines aren't necessary after an open brace '{' Signed-off-by: -
Michael Straube authored
Clean up alignment style issues to follow kernel coding style and clear checkpatch issues. CHECK: Alignment should match open parenthesis Signed-off-by:
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Michael Straube authored
Clean up block comment style issues to follow kernel coding style and clear checkpatch warnings. WARNING: Block comments should align the * on each line WARNING: Block comments use a trailing */ on a separate line WARNING: Block comments use * on subsequent lines Signed-off-by:
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Michael Straube authored
Use empty brace syntax to initialize zero valued arrays. Simplifies and shortens the code a little bit. Signed-off-by:
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Michael Straube authored
Clean up comparsions to NULL Reported by checkpatch. if (x == NULL) -> if (!x) if (x != NULL) -> if (x) Signed-off-by:
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Dan Carpenter authored
The ioremap() was never unmapped in the probe error handling or in the remove function. The fix is to use the devm_ioremap() function so it gets cleaned up automatically. Fixes: 70f59c90 ("staging: spmi: add Hikey 970 SPMI controller driver") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20200918143338.GE909725@mwandaSigned-off-by:
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Colin Ian King authored
A couple of statements are indented too deeply, remove the extraneous tabs. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20200918214731.48750-1-colin.king@canonical.comSigned-off-by:
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Arnd Bergmann authored
Split out the ioctl implementation for VCHIQ_IOC_QUEUE_BULK_TRANSMIT into a separate function so it can be shared with the compat implementation. This one is the trickiest conversion, as the compat implementation is already quite different from the native one. By using a common handler, the behavior is changed to be the same again: The indirect __user pointer accesses are now handled through helper functions that check for compat mode internally. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20200918095441.1446041-6-arnd@arndb.deSigned-off-by:
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Arnd Bergmann authored
Split out the ioctl implementation for VCHIQ_IOC_QUEUE_BULK_TRANSMIT into a separate function so it can be shared with the compat implementation. Here, the input data is converted separately in the compat handler, while the output data is passed as a __user pointer to thec vchiq_queue_bulk_transfer->mode word that is compatible. Signed-off-by:
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Arnd Bergmann authored
Split out the ioctl implementation for VCHIQ_IOC_DEQUEUE_MESSAGE into a separate function so it can be shared with the compat implementation. Signed-off-by:
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Arnd Bergmann authored
Split out the ioctl implementation for VCHIQ_IOC_CREATE_SERVICE into a separate function so it can be shared with the compat implementation. Signed-off-by:
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Arnd Bergmann authored
The compat handlers for VCHIQ_IOC_QUEUE_MESSAGE32 and VCHIQ_IOC_GET_CONFIG32 can simply call the underlying implementations that are already separate functions rather than using copy_in_user to simulate the native 64-bit interface for the full ioctl handler. vchiq_ioc_queue_message gets a small update to the calling conventions to simplify the compat version by directly returning a normal errno value. Signed-off-by:
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