Backport support for AD4130-4, AD4129 and AD4131 - #3429
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The Data Ready/FIFO interrupt has a special behavior that inverts the IRQ polarity when devices with FIFO support enter FIFO mode, while using normal polarity for data ready. Document the interrupts property to clarify this special behavior for users. Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Extend binding support for AD4129-4/8, AD4130-4, and AD4131-4/8 ADC variants. Dropped a reference to driver in the binding whilst here. Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Enables using the AD4129-4 device on Coraz7s. Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>
Enables using the AD4129-8 device on Coraz7s. Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>
Enables using the AD4130-4 device on Coraz7s. Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>
Enables using the AD4130-8 device on Coraz7s. Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>
Enables using the AD4131-4 device on Coraz7s. Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>
Enables using the AD4131-8 device on Coraz7s. Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>
Directly include the cleanup.h for the guard() instead of relying it to be included via other files. Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com> Link: https://patch.msgid.link/5b352ce7241e5904a317dd26950c7cd4daa59fc0.1740748394.git.mazziesaccount@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add SPI device ID table to enable non-device tree based device binding. The id_table provides a fallback matching mechanism when of_match_table cannot be used, which is required for proper SPI driver registration. Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Introduce a chip_info structure to abstract device-specific parameters and prepare the driver for supporting multiple AD4130 family variants. Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Add support for AD4129-4/8, AD4130-4, and AD4131-4/8 variants. The AD4129 series supports the same FIFO interface as the AD4130 but with reduced resolution (16-bit). The AD4131 series lacks FIFO support, so triggered buffer functionality is introduced. The 4-channel variants feature fewer analog inputs, GPIOs, and sparse pin mappings for VBIAS, analog inputs, and excitation currents. The driver now handles these differences with chip-specific configurations, including pin mappings and GPIO counts. Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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PR Description
This PR backports updates on AD4130 driver to bring support for AD4130-4, AD4129-4, AD4129-8, AD4131-4 and AD4131-8 parts.
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