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| | * iio: adc: ti-ads1119: Stop using iio_device_claim_direct_scoped()Jonathan Cameron2025-02-171-6/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This complex cleanup.h use case of conditional guards has proved to be more trouble that it is worth in terms of false positive compiler warnings and hard to read code. Move directly to the new claim/release_direct() that allow sparse to check for unbalanced context. Cc: João Paulo Gonçalves <[email protected]> Reviewed-by: David Lechner <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ti-adc161s626: Stop using iio_device_claim_direct_scoped()Jonathan Cameron2025-02-171-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This complex cleanup.h use case of conditional guards has proved to be more trouble that it is worth in terms of false positive compiler warnings and hard to read code. Move directly to the new claim/release_direct() that allow sparse to check for unbalanced context Reviewed-by: David Lechner <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: rtq6056: Stop using iio_device_claim_direct_scoped()Jonathan Cameron2025-02-171-18/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This complex cleanup.h use case of conditional guards has proved to be more trouble that it is worth in terms of false positive compiler warnings and hard to read code. Move directly to the new claim/release_direct() that allow sparse to check for unbalanced context Reviewed-by: ChiYuan Huang <[email protected]> Reviewed-by: David Lechner <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: max1363: Stop using iio_device_claim_direct_scoped()Jonathan Cameron2025-02-171-73/+86
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This complex cleanup.h use case of conditional guards has proved to be more trouble that it is worth in terms of false positive compiler warnings and hard to read code. Move directly to the new claim/release_direct() that allow sparse to check for unbalanced context. Reviewed-by: David Lechner <[email protected]> Reviewed-by: Nuno Sa <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad9467: Stop using iio_device_claim_direct_scoped()Jonathan Cameron2025-02-171-7/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This complex cleanup.h use case of conditional guards has proved to be more trouble that it is worth in terms of false positive compiler warnings and hard to read code. Move directly to the new claim/release_direct() that allow sparse to check for unbalanced context. Also use guard() to simplify mutex unlock paths. Reviewed-by: David Lechner <[email protected]> Reviewed-by: Nuno Sa <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7779: Stop using iio_device_claim_direct_scoped()Jonathan Cameron2025-02-171-39/+62
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This complex cleanup.h use case of conditional guards has proved to be more trouble that it is worth in terms of false positive compiler warnings and hard to read code. Move directly to the new claim/release_direct() that allow sparse to check for unbalanced context. Cc: Ramona Alexandra Nechita <[email protected]> Reviewed-by: David Lechner <[email protected]> Reviewed-by: Nuno Sa <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7625: Stop using iio_device_claim_direct_scoped()Jonathan Cameron2025-02-171-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This complex cleanup.h use case of conditional guards has proved to be more trouble that it is worth in terms of false positive compiler warnings and hard to read code. Move directly to the new claim/release_direct() that allow sparse to check for unbalanced context. Reviewed-by: Trevor Gamblin <[email protected]> Reviewed-by: David Lechner <[email protected]> Reviewed-by: Nuno Sa <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7606: Stop using iio_device_claim_direct_scoped()Jonathan Cameron2025-02-171-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This complex cleanup.h use case of conditional guards has proved to be more trouble that it is worth in terms of false positive compiler warnings and hard to read code. Move directly to the new claim/release_direct() that allow sparse to check for unbalanced context. Cc: Guillaume Stols <[email protected]> Reviewed-by: David Lechner <[email protected]> Reviewed-by: Nuno Sa <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad4695: Stop using iio_device_claim_direct_scoped()Jonathan Cameron2025-02-171-132/+157
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This complex cleanup.h use case of conditional guards has proved to be more trouble that it is worth in terms of false positive compiler warnings and hard to read code. Move directly to the new claim/release_direct() that allow sparse to check for unbalanced context. In some cases code is factored out to utility functions that can do a direct return with the claim and release around the call. Reviewed-by: David Lechner <[email protected]> Reviewed-by: Nuno Sa <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad4130: Stop using iio_device_claim_direct_scoped()Jonathan Cameron2025-02-171-7/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This complex cleanup.h use case of conditional guards has proved to be more trouble that it is worth in terms of false positive compiler warnings and hard to read code. Move directly to the new claim/release_direct() that allow sparse to check for unbalanced context. Cc: Cosmin Tanislav <[email protected]> Reviewed-by: David Lechner <[email protected]> Reviewed-by: Nuno Sa <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad4000: Stop using iio_device_claim_direct_scoped()Jonathan Cameron2025-02-171-23/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This complex cleanup.h use case of conditional guards has proved to be more trouble that it is worth in terms of false positive compiler warnings and hard to read code. Move directly to the new claim/release_direct() that allow sparse to check for unbalanced context. Reviewed-by: Marcelo Schmitt <[email protected]> Tested-by: Marcelo Schmitt <[email protected]> Reviewed-by: David Lechner <[email protected]> Reviewed-by: Nuno Sa <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: Add driver for ADS7128 / ADS7138Tobias Sperling2025-02-163-0/+760
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add driver for ADS7128 and ADS7138 12-bit, 8-channel analog-to-digital converters. These ADCs have a wide operating range and a wide feature set. Communication is based on the I2C interface. ADS7128 differs in the addition of further hardware features, like a root-mean-square (RMS) and a zero-crossing-detect (ZCD) module. Signed-off-by: Tobias Sperling <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad4030: add support for ad4632-16 and ad4632-24Esteban Blanc2025-02-161-0/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | AD4632-24 and AD4632-16 are 2 channels ADCs. Both channels are interleaved bit per bit on SDO line. Both of them do not have evaluation board. As such, the support added here can't be tested. Support is provided as best effort until someone get their hands on one. Signed-off-by: Esteban Blanc <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad4030: add support for ad4630-24 and ad4630-16Esteban Blanc2025-02-161-10/+178
| | | | | | | | | | | | | | | | | | | | | | | | | | | AD4630-24 and AD4630-16 are 2 channels ADCs. Both channels are interleaved bit per bit on SDO line. Signed-off-by: Esteban Blanc <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad4030: add averaging supportEsteban Blanc2025-02-161-17/+119
| | | | | | | | | | | | | | | | | | | | | | | | | | | This add support for the averaging mode of AD4030 using oversampling IIO attribute Signed-off-by: Esteban Blanc <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad4030: add driver for ad4030-24Esteban Blanc2025-02-163-0/+937
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds a new driver for the Analog Devices INC. AD4030-24 ADC. The driver implements basic support for the AD4030-24 1 channel differential ADC with hardware gain and offset control. Signed-off-by: Esteban Blanc <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad4851: add ad485x driverAntoniu Miclaus2025-02-163-0/+1330
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for the AD485X a fully buffered, 8-channel simultaneous sampling, 16/20-bit, 1 MSPS data acquisition system (DAS) with differential, wide common-mode range inputs. Signed-off-by: Antoniu Miclaus <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: adi-axi-adc: add oversamplingAntoniu Miclaus2025-02-161-0/+24
| | | | | | | | | | | | | | | | | | | | | | | | Add support for enabling/disabling oversampling. Signed-off-by: Antoniu Miclaus <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: adi-axi-adc: set data formatAntoniu Miclaus2025-02-161-1/+77
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for selecting the data format within the AXI ADC ip. Add separate complatible string for the custom AD485X IP and implement the necessary changes. Reviewed-by: Nuno Sa <[email protected]> Signed-off-by: Antoniu Miclaus <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: adi-axi-adc: add interface typeAntoniu Miclaus2025-02-161-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for getting the interface (CMOS or LVDS) used by the AXI ADC IP. Reviewed-by: Nuno Sa <[email protected]> Reviewed-by: David Lechner <[email protected]> Signed-off-by: Antoniu Miclaus <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7606: add support for writing registers when using backendGuillaume Stols2025-02-112-4/+63
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the logic for effectively enabling the software mode for the iio-backend, i.e. enabling the software mode channel configuration and implementing the register writing functions. Signed-off-by: Guillaume Stols <[email protected]> Co-developed-by: Angelo Dureghello <[email protected]> Signed-off-by: Angelo Dureghello <[email protected]> Link: https://patch.msgid.link/20250210-wip-bl-ad7606_add_backend_sw_mode-v4-9-160df18b1da7@baylibre.com Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7606: change channel macros parametersGuillaume Stols2025-02-111-26/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the possibility to pass the *_available parameters to the main macro. This is a preparation to add the new channels for software mode and hardware mode in iio backend mode more easily. Signed-off-by: Guillaume Stols <[email protected]> Link: https://patch.msgid.link/20250210-wip-bl-ad7606_add_backend_sw_mode-v4-8-160df18b1da7@baylibre.com Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7606: protect register accessAngelo Dureghello2025-02-111-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | Protect register (and bus) access from concurrent read / write. Needed in the backend operating mode. Signed-off-by: Angelo Dureghello <[email protected]> Link: https://patch.msgid.link/20250210-wip-bl-ad7606_add_backend_sw_mode-v4-7-160df18b1da7@baylibre.com Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: adi-axi-adc: add support for AD7606 register writingGuillaume Stols2025-02-111-0/+81
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since we must access the bus parallel bus using a custom procedure, let's add a specialized compatible, and define specialized callbacks for writing the registers using the parallel interface. Signed-off-by: Guillaume Stols <[email protected]> Co-developed-by: Angelo Dureghello <[email protected]> Signed-off-by: Angelo Dureghello <[email protected]> Link: https://patch.msgid.link/20250210-wip-bl-ad7606_add_backend_sw_mode-v4-6-160df18b1da7@baylibre.com Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: adi-axi-adc: add platform children supportAngelo Dureghello2025-02-112-0/+81
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a preparation for the next commit adding support for register read and write functions on AD7606. Since sometimes a bus will be used, it has been agreed during ad3552's driver implementation that the device's driver bus is the backend, whose device node will be a child node. To provide the special callbacks for setting the register, axi-adc needs to pass them to the child device's driver through platform data. Signed-off-by: Angelo Dureghello <[email protected]> Link: https://patch.msgid.link/20250210-wip-bl-ad7606_add_backend_sw_mode-v4-5-160df18b1da7@baylibre.com Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: adi-axi-adc: add struct axi_adc_infoAngelo Dureghello2025-02-111-9/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add struct axi_adc_info to allow different axi-adc compatibles that can be added to this generic implementation. Signed-off-by: Angelo Dureghello <[email protected]> Link: https://patch.msgid.link/20250210-wip-bl-ad7606_add_backend_sw_mode-v4-4-160df18b1da7@baylibre.com Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7606: move software functions into common fileGuillaume Stols2025-02-113-149/+158
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the register are always the same, whatever bus is used, moving the software functions into the main file avoids the code to be duplicated in both SPI and parallel version of the driver. Signed-off-by: Guillaume Stols <[email protected]> Co-developed-by: Angelo Dureghello <[email protected]> Signed-off-by: Angelo Dureghello <[email protected]> Link: https://patch.msgid.link/20250210-wip-bl-ad7606_add_backend_sw_mode-v4-3-160df18b1da7@baylibre.com Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7606: move the software mode configurationGuillaume Stols2025-02-111-11/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a preparation for the intoduction of the sofware functions in the iio backend version of the driver. The software mode configuration must be executed once the channels are configured, and the number of channels is known. This is not the case before iio-backend's configuration is called, and iio backend version of the driver does not have a timestamp channel. Also the sw_mode_config callback is configured during the iio-backend configuration. For clarity purpose, I moved the entire block instead of just the concerned function calls. Signed-off-by: Guillaume Stols <[email protected]> Link: https://patch.msgid.link/20250210-wip-bl-ad7606_add_backend_sw_mode-v4-2-160df18b1da7@baylibre.com Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad4695: add offload-based oversampling supportTrevor Gamblin2025-02-111-29/+302
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for the ad4695's oversampling feature when SPI offload is available. This allows the ad4695 to set oversampling ratios on a per-channel basis, raising the effective-number-of-bits from 16 (OSR == 1) to 17 (4), 18 (16), or 19 (64) for a given sample (i.e. one full cycle through the auto-sequencer). The logic for reading and writing sampling frequency for a given channel is also adjusted based on the current oversampling ratio. The non-offload case isn't supported as there isn't a good way to trigger the CNV pin in this mode. Support could be added in the future if a use-case arises. Signed-off-by: Trevor Gamblin <[email protected]> Reviewed-by: Nuno Sa <[email protected]> Tested-by: David Lechner <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad4695: Add support for SPI offloadDavid Lechner2025-02-112-17/+431
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for SPI offload to the ad4695 driver. SPI offload allows sampling data at the max sample rate (500kSPS or 1MSPS). This is developed and tested against the ADI example FPGA design for this family of ADCs [1]. [1]: http://analogdevicesinc.github.io/hdl/projects/ad469x_fmc/index.html Reviewed-by: Nuno Sa <[email protected]> Signed-off-by: David Lechner <[email protected]> Link: https://patch.msgid.link/20250207-dlech-mainline-spi-engine-offload-2-v8-14-e48a489be48c@baylibre.com Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7944: add support for SPI offloadDavid Lechner2025-02-112-16/+277
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for SPI offload to the ad7944 driver. This allows reading data at the max sample rate of 2.5 MSPS. Reviewed-by: Jonathan Cameron <[email protected]> Reviewed-by: Nuno Sa <[email protected]> Signed-off-by: David Lechner <[email protected]> Link: https://patch.msgid.link/20250207-dlech-mainline-spi-engine-offload-2-v8-11-e48a489be48c@baylibre.com Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7944: don't use storagebits for sizingDavid Lechner2025-02-101-7/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace use of storagebits with realbits for determining the number of bytes needed for SPI transfers. When adding SPI offload support, storagebits will always be 32 rather than 16 for 16-bit 16-bit chips so we can no longer rely on storagebits being the correct size expected by the SPI framework (it always uses 4 bytes for > 16-bit xfers and 2 bytes for > 8-bit xfers). Instead, derive the correct size from realbits since it will always be correct even when SPI offloading is used. Reviewed-by: Jonathan Cameron <[email protected]> Reviewed-vy: Nuno Sa <[email protected]> Signed-off-by: David Lechner <[email protected]> Link: https://patch.msgid.link/20250207-dlech-mainline-spi-engine-offload-2-v8-10-e48a489be48c@baylibre.com Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: buffer-dmaengine: split requesting DMA channel from allocating bufferDavid Lechner2025-02-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Refactor the IIO dmaengine buffer code to split requesting the DMA channel from allocating the buffer. We want to be able to add a new function where the IIO device driver manages the DMA channel, so these two actions need to be separate. To do this, calling dma_request_chan() is moved from iio_dmaengine_buffer_alloc() to iio_dmaengine_buffer_setup_ext(). A new __iio_dmaengine_buffer_setup_ext() helper function is added to simplify error unwinding and will also be used by a new function in a later patch. iio_dmaengine_buffer_free() now only frees the buffer and does not release the DMA channel. A new iio_dmaengine_buffer_teardown() function is added to unwind everything done in iio_dmaengine_buffer_setup_ext(). This keeps things more symmetrical with obvious pairs alloc/free and setup/teardown. Calling dma_get_slave_caps() in iio_dmaengine_buffer_alloc() is moved so that we can avoid any gotos for error unwinding. Reviewed-by: Nuno Sa <[email protected]> Signed-off-by: David Lechner <[email protected]> Link: https://patch.msgid.link/20250207-dlech-mainline-spi-engine-offload-2-v8-8-e48a489be48c@baylibre.com Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad4130: Add filter_type attributesMarcelo Schmitt2025-02-081-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make filter control also available through filter_type attributes which are now standardized in main IIO ABI documentation. Suggested-by: David Lechner <[email protected]> Signed-off-by: Marcelo Schmitt <[email protected]> Reviewed-by: David Lechner <[email protected]> Link: https://patch.msgid.link/61a87b288552cad9e925a9af4eb33022d14a4617.1738680728.git.marcelo.schmitt@analog.com Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7124: Really disable all channels at probe timeUwe Kleine-König2025-02-081-5/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If one or more of the 16 channels are enabled and the driver is not aware of that, unexpected things happen because different channels are used than intended. To prevent that, all channels should be disabled at probe time. In Commit 4be339af334c ("iio: adc: ad7124: Disable all channels at probe time") I intended do that, however only the channels that are potentially used by the driver and not all channels are disabled since then. So disable all 16 channels and not only the used ones. Also fix the same issue in the .disable_all() callback. Fixes: 4be339af334c ("iio: adc: ad7124: Disable all channels at probe time") Signed-off-by: Uwe Kleine-König <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7173: add openwire detection support for single conversionsGuillaume Ranquet2025-02-081-0/+179
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some chips of the ad7173 family supports open wire detection. Generate a level fault event whenever an external source is disconnected from the system input on single conversions. Reviewed-by: Nuno Sa <[email protected]> Signed-off-by: Guillaume Ranquet <[email protected]> Reviewed-by: David Lechner <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7124: Micro-optimize channel disablingUwe Kleine-König2025-02-081-8/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The key objective in ad7124_disable_one() is clearing the AD7124_CHANNEL_EN_MSK bit in the channel register. However there is no advantage to keep the other bits in that register because when the channel is used next time, all fields are rewritten anyhow. So instead of using ad7124_spi_write_mask() (which is a register read plus a register write) use a simple register write clearing the complete register. Also do the same in the .disable_all() callback by using the .disable_one() callback there. Signed-off-by: Uwe Kleine-König <[email protected]> Reviewed-by: Nuno Sa <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ti-ads124s08: Switch to fsleep()Fabio Estevam2025-02-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to Documentation/timers/delay_sleep_functions.rst, fsleep() is the preferred delay function to be used in non-atomic context, so switch to it accordingly. Suggested-by: Andy Shevchenko <[email protected]> Reviewed-by: Andy Shevchenko <[email protected]> Signed-off-by: Fabio Estevam <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad4695: add custom regmap bus callbacksTrevor Gamblin2025-02-032-8/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a custom implementation of regmap read/write callbacks using the SPI bus. This allows them to be performed at a lower SCLK rate than data reads. Previously, all SPI transfers were being performed at a lower speed, but with this change sample data is read at the max bus speed while the register reads/writes remain at the lower rate. Also remove .can_multi_write from the AD4695 driver's regmap_configs, as this isn't implemented or needed. For some background context, see: https://lore.kernel.org/linux-iio/[email protected]/ Suggested-by: David Lechner <[email protected]> Signed-off-by: Trevor Gamblin <[email protected]> Reviewed-by: David Lechner <[email protected]> Tested-by: David Lechner <[email protected]> Link: https://patch.msgid.link/20241113-tgamblin-ad4695_improvements-v2-3-b6bb7c758fc4@baylibre.com Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad4695: make ad4695_exit_conversion_mode() more robustTrevor Gamblin2025-02-031-6/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ensure that conversion mode is successfully exited when the command is issued by adding an extra transfer beforehand, matching the minimum CNV high and low times from the AD4695 datasheet. The AD4695 has a quirk where the exit command only works during a conversion, so guarantee this happens by triggering a conversion in ad4695_exit_conversion_mode(). Then make this even more robust by ensuring that the exit command is run at AD4695_REG_ACCESS_SCLK_HZ rather than the bus maximum. Signed-off-by: Trevor Gamblin <[email protected]> Reviewed-by: David Lechner <[email protected]> Tested-by: David Lechner <[email protected]> Link: https://patch.msgid.link/20241113-tgamblin-ad4695_improvements-v2-2-b6bb7c758fc4@baylibre.com Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7625: drop BSD license tagTrevor Gamblin2025-02-031-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ad7625 driver was submitted under a dual BSD/GPL license, but this isn't a requirement for the code, and adds extra complexity. To make it consistent with similar drivers, drop the BSD tag and leave it as GPL-2.0-only. Suggested-by: Nuno Sa <[email protected]> Signed-off-by: Trevor Gamblin <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7173: don't make copy of ad_sigma_delta_info structDavid Lechner2025-02-031-227/+255
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use two separate static const struct ad_sigma_delta_info instances instead of making a copy for each driver instance. Typically in the IIO subsystem, we use multiple static const instances of the same struct when there are different variants of the same family of devices as opposed to making a copy for each driver instance and modifying it. Signed-off-by: David Lechner <[email protected]> Link: https://patch.msgid.link/20250113-iio-adc-ad7313-fix-non-const-info-struct-v4-2-b63be3ecac4a@baylibre.com Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7173: move fwnode_irq_get_byname() call siteDavid Lechner2025-02-032-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the call to fwnode_irq_get_byname() from the driver-specific ad7173_fw_parse_device_config() to the shared ad_sd_init() function. The main reason for this is that we want struct ad_sigma_delta_info to be static const data that describes the actual ADC chip, not the application-specific configuration or any runtime state. Previously, this struct was being used to pass the IRQ number to the shared ad_sd_init() function. Now, this is replaced by a boolean flag that is set at compile time and the ad_sd_init() function handles looking up the IRQ number instead. This also has the added benefit that if any other drivers need to make use of this in the future, they just have to set the flag and the shared code will take care of the rest rather than duplicating the code in each driver. Signed-off-by: David Lechner <[email protected]> Link: https://patch.msgid.link/20250113-iio-adc-ad7313-fix-non-const-info-struct-v4-1-b63be3ecac4a@baylibre.com Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: stm32: Drop unnecessary DT property presence checkRob Herring (Arm)2025-02-031-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's no reason to check for regulator supply property presence before calling devm_regulator_get_optional() as that will return -ENODEV if the supply is not present. Signed-off-by: Rob Herring (Arm) <[email protected]> Acked-by: Fabrice Gasnier <[email protected]> Tested-by: Fabrice Gasnier <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7380: add alert supportJulien Stephan2025-02-031-0/+192
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The alert functionality is an out of range indicator and can be used as an early indicator of an out of bounds conversion result. ALERT_LOW_THRESHOLD and ALERT_HIGH_THRESHOLD registers are common to all channels. When using 1 SDO line (only mode supported by the driver right now), i.e data outputs only on SDOA, SDOB (or SDOD for 4 channels variants) is used as an alert pin. The alert pin is updated at the end of the conversion (set to low if an alert occurs) and is cleared on a falling edge of CS. The ALERT register contains information about the exact alert status: channel and direction. ALERT register can be accessed using debugfs if enabled. User can set high/low thresholds and enable alert detection using the regular iio events attributes: events/in_thresh_falling_value events/in_thresh_rising_value events/thresh_either_en In most use cases, user will hardwire the alert pin to trigger a shutdown. In theory, we could generate userspace IIO events for alerts, but this is not implemented yet for several reasons [1]. This can be implemented later if a real use case actually requires it. Signed-off-by: Julien Stephan <[email protected]> [1] https://lore.kernel.org/all/[email protected]/ Reviewed-by: David Lechner <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7380: do not store osr in private data structureJulien Stephan2025-02-031-14/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since regmap cache is now enabled, we don't need to store the oversampling ratio in the private data structure. Reviewed-by: David Lechner <[email protected]> Signed-off-by: Julien Stephan <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7380: enable regmap cacheJulien Stephan2025-02-031-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | Enable regmap cache, to avoid useless access on spi bus. Reviewed-by: David Lechner <[email protected]> Signed-off-by: Julien Stephan <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
| | * iio: adc: ad7380: do not use iio_device_claim_direct_scoped anymoreJulien Stephan2025-02-031-43/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conditionnal scoped handlers are turning out to be a real pain: readability issues, compiler and linker handling issues among others so rollback and remove the scoped version of iio_dvice_claim_direct_mode. To impove code readability factorize code to set oversampling ratio. Signed-off-by: Julien Stephan <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
* | | Merge tag 'pinctrl-v6.15-1' of ↵Linus Torvalds2025-03-291-2/+2
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "Core changes: - None really. New drivers: - AMD ISP411 "AMD ISP" driver - Exynos 2200 and 7870 SoC subdrivers - Sophgo RISC-V SG2042 and SG2044 subdrivers - Amlogic A4 subdriver - Rockchip RK3528 subdriver - Broadcom BCM21664 subdriver - Allwinner A523/T527 subdriver - Ingenic X1600 subdriver - Microchip SAMA7D65 subdriver, essentially a re-branded Atmel AT91 PIO4 driver, but nowadays a Microschip SoC line Improvements: - Bring in the devm_kmemdup_array() helper and use it throughout, also bring in changes to other subsystems for this to establish this helper - Support EGPIO on the Qualcomm SA8775P SoC - Extend EINT support in the Mediatek driver" * tag 'pinctrl-v6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (101 commits) pinctrl: mediatek: Add EINT support for multiple addresses pinctrl: amlogic-a4: Drop surplus semicolon pinctrl: nuvoton: Reduce use of OF-specific APIs pinctrl: nuvoton: Convert to use struct group_desc pinctrl: nuvoton: Make use of struct pinfunction and PINCTRL_PINFUNCTION() pinctrl: nuvoton: Convert to use struct pingroup and PINCTRL_PINGROUP() pinctrl: npcm8xx: Fix incorrect struct npcm8xx_pincfg assignment pinctrl: tegra: Fix off by one in tegra_pinctrl_get_group() pinctrl: PINCTRL_AMDISP should depend on DRM_AMD_ISP pinctrl: qcom: sa8775p: Enable egpio function dt-bindings: pinctrl: qcom: Add egpio function for sa8775p pinctrl: qcom: tlmm-test: Validate irq_enable delivers edge irqs pinctrl: qcom: Clear latched interrupt status when changing IRQ type dt-bindings: pinctrl: airoha: Add missing gpio-ranges property pinctrl: bcm281xx: Add missing assignment in bcm21664_pinctrl_lock_all() pinctrl: amd: isp411: Fix IS_ERR() vs NULL check in probe() dt-bindings: pinctrl: at91-pio4: add microchip,sama7d65-pinctrl pinctrl: tegra: Set SFIO mode to Mux Register pinctrl-tegra: Restore SFSEL bit when freeing pins pinctrl: tegra: Add descriptions for SoC data fields ...
| * | | iio: adc: xilinx-xadc-core: use devm_kmemdup_array()Raag Jadav2025-02-241-2/+2
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | Convert to use devm_kmemdup_array() and while at it, use source size instead of destination. Signed-off-by: Raag Jadav <[email protected]> Acked-by: Jonathan Cameron <[email protected]> Signed-off-by: Andy Shevchenko <[email protected]>
generated by cgit (git 2.51.2) at 2025-12-03 20:47:38 +0000