- 25 Mar, 2024 39 commits
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Javier Carrasco authored
The HDC3020 provides an active low reset signal that is still not described in the bindings. Add reset-gpios to the bindings and the example. Reviewed-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by:
Javier Carrasco <javier.carrasco.cruz@gmail.com> Link: https://lore.kernel.org/r/20240303-hdc3020-pm-v3-2-48bc02b5241b@gmail.comSigned-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Javier Carrasco authored
The HDC3020 sensor carries out periodic measurements during normal operation, but as long as the power supply is enabled, it will carry on in low-power modes. In order to avoid that and reduce power consumption, the device can be switched to Trigger-on Demand mode, and if possible, turn off its regulator. According to the datasheet, the maximum "Power Up Ready" is 5 ms. Add resume/suspend pm operations to manage measurement mode and regulator state. Signed-off-by:
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David Lechner authored
This adds a driver for the Analog Devices Inc. AD7944, AD7985, and AD7986 ADCs. These are a family of pin-compatible ADCs that can sample at rates up to 2.5 MSPS. The initial driver adds support for sampling at lower rates using the usual IIO triggered buffer and can handle all 3 possible reference voltage configurations. Signed-off-by:
David Lechner <dlechner@baylibre.com> Reviewed-by:
Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20240304-ad7944-mainline-v5-2-f0a38cea8901@baylibre.comSigned-off-by:
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David Lechner authored
This adds a new binding for the Analog Devices, Inc. AD7944, AD7985, and AD7986 ADCs. Reviewed-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Andy Shevchenko authored
Convert the module to be property provider agnostic and allow it to be used on non-OF platforms. Include mod_devicetable.h explicitly to replace the dropped of.h which included mod_devicetable.h indirectly. Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240304144037.1036390-1-andriy.shevchenko@linux.intel.comSigned-off-by:
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Dumitru Ceclan authored
Add support for Analog Devices AD7172-2, AD7175-8, AD7177-2. Signed-off-by:
Dumitru Ceclan <mitrutzceclan@gmail.com> Link: https://lore.kernel.org/r/20240306110956.13167-4-mitrutzceclan@gmail.comSigned-off-by:
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Dumitru Ceclan authored
Rename to AD7172_2_ID to avoid confusion with _4 model. Reorder id's by reg value. Signed-off-by:
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Dumitru Ceclan authored
Add support for: AD7172-2, AD7175-8, AD7177-2. AD7172-4 does not feature an internal reference, check for external reference presence. Signed-off-by:
Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20240306110956.13167-2-mitrutzceclan@gmail.comSigned-off-by:
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Subhajit Ghosh authored
Driver support for Avago (Broadcom) APDS9306 Ambient Light Sensor. It has two channels - ALS and CLEAR. The ALS (Ambient Light Sensor) channel approximates the response of the human-eye providing direct read out where the output count is proportional to ambient light levels. It is internally temperature compensated and rejects 50Hz and 60Hz flicker caused by artificial light sources. Hardware interrupt configuration is optional. It is a low power device with 20 bit resolution and has configurable adaptive interrupt mode and interrupt persistence mode. The device also features inbuilt hardware gain, multiple integration time selection options and sampling frequency selection options. This driver also uses the IIO GTS (Gain Time Scale) Helpers Namespace for Scales, Gains and Integration time implementation. Signed-off-by:
Subhajit Ghosh <subhajit.ghosh@tweaklogic.com> Link: https://lore.kernel.org/r/20240309105031.10313-6-subhajit.ghosh@tweaklogic.comSigned-off-by:
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Subhajit Ghosh authored
Extend avago,apds9300.yaml schema file to support apds9306 device. Acked-by:
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Subhajit Ghosh authored
Include irq.h and irq level macro in the example for readability Acked-by:
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Subhajit Ghosh authored
All devices covered by the binding have a vdd supply. Acked-by:
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Subhajit Ghosh authored
Merge very similar schemas for APDS9300 and APDS9960. Suggested-by:
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Andy Shevchenko authored
No need to rewrite the value, instead use 'else' branch. This will also help further refactoring the code later on. Signed-off-by:
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Andy Shevchenko authored
In iio_device_alloc() when size of the private data is 0, the private pointer is calculated to point behind the valid data. Leave it NULL when no private data supplied. Fixes: 6d4ebd56 ("iio: core: wrap IIO device into an iio_dev_opaque object") Signed-off-by:
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Javier Carrasco authored
The C standard specifies that there is no need to cast from a pointer to void [1]. Therefore, it can be safely dropped. [1] C Standard Committee: https://c0x.shape-of-code.com/6.3.2.3.htmlSigned-off-by:
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Javier Carrasco authored
The C standard specifies that there is no need to cast from a pointer to void [1]. Therefore, it can be safely dropped. [1] C Standard Committee: https://c0x.shape-of-code.com/6.3.2.3.htmlSigned-off-by:
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Javier Carrasco authored
The C standard specifies that there is no need to cast from a pointer to void [1]. Therefore, it can be safely dropped. [1] C Standard Committee: https://c0x.shape-of-code.com/6.3.2.3.htmlSigned-off-by:
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Dumitru Ceclan authored
The AD7173 family offer a complete integrated Sigma-Delta ADC solution which can be used in high precision, low noise single channel applications or higher speed multiplexed applications. The Sigma-Delta ADC is intended primarily for measurement of signals close to DC but also delivers outstanding performance with input bandwidths out to ~10kHz. Reviewed-by:
Andy Shevchenko <andy@kernel.org> Reviewed-by: Michael Walle <michael@walle.cc> # for gpio-regmap Signed-off-by:
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Dumitru Ceclan authored
Add optional irq_num attribute to ad_sigma_delta_info structure for selecting the used interrupt line for ADC's conversion completion. Signed-off-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20240228110622.25114-2-mitrutzceclan@gmail.comSigned-off-by:
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Dumitru Ceclan authored
The AD7173 family offer a complete integrated Sigma-Delta ADC solution which can be used in high precision, low noise single channel applications or higher speed multiplexed applications. The Sigma-Delta ADC is intended primarily for measurement of signals close to DC but also delivers outstanding performance with input bandwidths out to ~10kHz. Reviewed-by:
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Andy Shevchenko authored
Convert the module to be property provider agnostic and allow it to be used on non-OF platforms. Include mod_devicetable.h explicitly to replace the dropped of.h which included mod_devicetable.h indirectly. Signed-off-by:
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Jonathan Cameron authored
Using automated cleanup to replace of_node_put() handling allows for a simplfied flow by enabling direct returns on errors. Non available child nodes should never have been considered; that is ones where status != okay and was defined. Reviewed-by:
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Jonathan Cameron authored
Switching to the _scoped() version removes the need for manual calling of fwnode_handle_put() in the paths where the code exits the loop early. In this case that's all in error paths. Cc: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by:
Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/r/20240224123215.161469-5-jic23@kernel.orgSigned-off-by:
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Jonathan Cameron authored
This use of the new cleanup.h scope based freeing infrastructure allows us to exit directly from error conditions and in the good path with the reference obtained from fwnode_find_reference() (which may be an error pointer) automatically released. Similarly the _scoped() version of device_for_each_child_node() removes the need for the manual calling of fwnode_handl_put() in paths where the code exits the loop early. Tidy up some unusual indentation in a dev_dbg() whilst here. Reviewed-by:
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Jonathan Cameron authored
Allows driver to be used with other firmware types and removes an example that might be copied into new IIO drivers. Cc: Andreas Klinger <ak@it-klinger.de> Reviewed-by:
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Jonathan Cameron authored
Only the irq was retrieved using an of specific accessor. Switch to the fwnode equivalent and adjust headers. Also include missing mod_devicetable.h and irq.h. Cc: Sean Nyekjaer <sean@geanix.com> Reviewed-by:
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Jonathan Cameron authored
In this case only use was to get an irq so easily converted. Also include linux/mod_devicetable.h for struct of_device_id definition. Using the generic firmware handling, this driver may be used with other firmware types. This also removes an example that might get copied into other drivers leaving them unable to be used with alternative firmware types. Cc: Haibo Chen <haibo.chen@nxp.com> Reviewed-and-tested-by:
Haibo Chen <haibo.chen@nxp.com> Reviewed-by:
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Jonathan Cameron authored
Enables use of with other firmwware types. Removes a case of device tree specific handlers that might get copied into new drivers. Cc: Alisa-Dariana Roman <alisa.roman@analog.com> Reviewed-by:
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Jonathan Cameron authored
This reduces the wrong of device tree only IIO drivers that might be copied by converting over this simple case. Makes use of the new _scoped() handling to automatically release the fwnode_handle on early exit from the loop. Cc: Nuno Sá <nuno.sa@analog.com> Reviewed-by:
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Jonathan Cameron authored
Using the generic firmware data access functions from property.h provides a number of advantages: 1) Works with different firmware types. 2) Doesn't provide a 'bad' example for new IIO drivers. 3) Lets us use the new _scoped() loops with automatic reference count cleanup for fwnode_handle Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Michael Hennerich <Michael.Hennerich@analog.com> Reviewed-by: -
Jonathan Cameron authored
Custom callbacks are need for regulators (so there is a handle to read the voltage from) and the clk because it is retrieved from the parent rather than directly from firmware description. Reviewed-by:
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Jonathan Cameron authored
Using the generic firmware data access functions from property.h provides a number of advantages: 1) Works with different firmware types. 2) Doesn't provide a 'bad' example for new IIO drivers. 3) Lets us use the new _scoped() loops with automatic reference count cleanup for fwnode_handle Reviewed-by:
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Jonathan Cameron authored
Switching to the _scoped() version removes the need for manual calling of fwnode_handle_put() in the paths where the code exits the loop early. In this case that's all in error paths. Reviewed-by:
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Jonathan Cameron authored
Switching to the _scoped() version removes the need for manual calling of fwnode_handle_put() in the paths where the code exits the loop early. In this case that's all in error paths. The use of fwnode_for_each_available_child_node() here is assumed to have been down to a false assumption that device_for_each_child_node() doesn't check avaialble - so this transition to the scoped device_for_each_child_node_scoped() is equivalent. Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by:
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Jonathan Cameron authored
Switching to the _scoped() version removes the need for manual calling of fwnode_handle_put() in the paths where the code exits the loop early. In this case that's all in error paths. Reviewed-by:
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Jonathan Cameron authored
Similar to recently propose for_each_child_of_node_scoped() this new version of the loop macro instantiates a new local struct fwnode_handle * that uses the __free(fwnode_handle) auto cleanup handling so that if a reference to a node is held on early exit from the loop the reference will be released. If the loop runs to completion, the child pointer will be NULL and no action will be taken. The reason this is useful is that it removes the need for fwnode_handle_put() on early loop exits. If there is a need to retain the reference, then return_ptr(child) or no_free_ptr(child) may be used to safely disable the auto cleanup. Acked-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Link: https://lore.kernel.org/r/20240217164249.921878-5-jic23@kernel.orgSigned-off-by:
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Jonathan Cameron authored
Useful where the fwnode_handle was obtained from a call such as fwnode_find_reference() as it will safely do nothing if IS_ERR() is true and will automatically release the reference on the variable leaving scope. Reviewed-by:
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Jonathan Cameron authored
By having this function as static inline in the header, the compiler is able to see if can optmize the call out if (IS_ERR_OR_NULL(fwnode)) This will allow a simpler DEFINE_FREE() call in the following patch. Suggested-by:
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- 24 Mar, 2024 1 commit
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Linus Torvalds authored
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