Commit bc2113bd authored by Henrik Brix Andersen's avatar Henrik Brix Andersen Committed by Johan Hedberg
Browse files

drivers: adc: add LMP90xxx ADC driver with GPIO 



Add driver for the Texas Instruments LMP90xxx series of multi-channel,
low-power 16-/24-bit sensor analog frontends (AFEs).

The functionality is split into two drivers; an ADC driver and a GPIO
driver.

Tested with LMP90080 and LMP90100.

Signed-off-by: default avatarHenrik Brix Andersen <hebad@vestas.com>
parent 9d71384e

CODEOWNERS

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@@ -135,6 +135,7 @@ 
/drivers/flash/*stm32*                    @superna9999

/drivers/gpio/                            @mnkp @pabigot

/drivers/gpio/*ht16k33*                   @henrikbrixandersen

/drivers/gpio/*lmp90xxx*                  @henrikbrixandersen

/drivers/gpio/*stm32*                     @rsalveti @idlethread

/drivers/hwinfo/                          @alexanderwachter

/drivers/i2c/*litex*                      @mateusz-holenko @kgugala @pgielda

drivers/adc/CMakeLists.txt

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@@ -11,4 +11,5 @@ zephyr_library_sources_ifdef(CONFIG_ADC_NRFX_SAADC adc_nrfx_saadc.c) 
zephyr_library_sources_ifdef(CONFIG_ADC_SAM0		adc_sam0.c)

zephyr_library_sources_ifdef(CONFIG_ADC_STM32		adc_stm32.c)

zephyr_library_sources_ifdef(CONFIG_ADC_XEC		adc_mchp_xec.c)

zephyr_library_sources_ifdef(CONFIG_ADC_LMP90XXX	adc_lmp90xxx.c)

zephyr_library_sources_ifdef(CONFIG_USERSPACE		adc_handlers.c)

drivers/adc/Kconfig

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@@ -57,4 +57,6 @@ source "drivers/adc/Kconfig.stm32" 


source "drivers/adc/Kconfig.xec"



source "drivers/adc/Kconfig.lmp90xxx"



endif # ADC

drivers/adc/Kconfig.lmp90xxx

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# LMP90xxx ADC configuration options



# Copyright (c) 2019 Vestas Wind Systems A/S

# SPDX-License-Identifier: Apache-2.0



config ADC_LMP90XXX

	bool "LMP90xxx driver"

	depends on SPI

	select ADC_CONFIGURABLE_INPUTS

	help

	  Enable LMP90xxx ADC driver.



	  The LMP90xxx is a multi-channel, low power sensor analog

	  frontend (AFE).



if ADC_LMP90XXX



config ADC_LMP90XXX_INIT_PRIORITY

	int "Init priority"

	default 80

	help

	  LMP90xxx ADC device driver initialization priority.



config ADC_LMP90XXX_ACQUISITION_THREAD_STACK_SIZE

	int "Stack size for the ADC data acquisition thread"

	default 400

	help

	  Size of the stack used for the internal data acquisition

	  thread.



config ADC_LMP90XXX_ACQUISITION_THREAD_PRIO

	int "Priority for the ADC data acquisition thread"

	default 0

	help

	  Priority level for the internal ADC data acquisition thread.



config ADC_LMP90XXX_CRC

	bool "Use Cyclic Redundancy Check (CRC)"

	default y

	help

	  Use Cyclic Redundancy Check (CRC) to verify the integrity of

	  the data read from the LMP90xxx.



config ADC_LMP90XXX_GPIO

	bool "Enable GPIO support"

	depends on GPIO

	select GPIO_LMP90XXX

	help

	  Enable GPIO child device support in the LMP90xxx ADC driver.



	  The GPIO functionality is handled by the LMP90xxx GPIO

	  driver.



endif # ADC_LMP90XXX

drivers/adc/adc_lmp90xxx.c

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