Commit bf0bba48 authored by Kurt Borja's avatar Kurt Borja Committed by Jonathan Cameron
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iio: adc: Add ti-ads1018 driver 



Add ti-ads1018 driver for Texas Instruments ADS1018 and ADS1118 SPI
analog-to-digital converters.

This chips' MOSI pin is shared with a data-ready interrupt. Defining
this interrupt in devicetree is optional, therefore we only create an
IIO trigger if one is found.

Handling this interrupt requires some considerations. When enabling the
trigger the CS line is tied low (active), thus we need to hold
spi_bus_lock() too, to avoid state corruption. This is done inside the
set_trigger_state() callback, to let users use other triggers without
wasting a bus lock.

Reviewed-by: default avatarAndy Shevchenko <andy@kernel.org>
Signed-off-by: default avatarKurt Borja <kuurtb@gmail.com>
Reviewed-by: default avatarDavid Lechner <dlechner@baylibre.com>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 43fabbb9

MAINTAINERS

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@@ -26022,6 +26022,7 @@ M: Kurt Borja <kuurtb@gmail.com> 
L:	linux-iio@vger.kernel.org

S:	Maintained

F:	Documentation/devicetree/bindings/iio/adc/ti,ads1018.yaml

F:	drivers/iio/adc/ti-ads1018.c









TI ADS7924 ADC DRIVER









M:	Hugo Villeneuve <hvilleneuve@dimonoff.com>

























drivers/iio/adc/Kconfig



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@@ -1676,6 +1676,18 @@ config TI_ADS1015







	  This driver can also be built as a module. If so, the module will be









	  called ti-ads1015.



















config TI_ADS1018









       tristate "Texas Instruments ADS1018 ADC"









       depends on SPI









       select IIO_BUFFER









       select IIO_TRIGGERED_BUFFER









       help









         If you say yes here you get support for Texas Instruments ADS1018 and









         ADS1118 ADC chips.



















         This driver can also be built as a module. If so, the module will be









         called ti-ads1018.



















config TI_ADS1100









	tristate "Texas Instruments ADS1100 and ADS1000 ADC"









	depends on I2C
































drivers/iio/adc/Makefile



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@@ -146,6 +146,7 @@ obj-$(CONFIG_TI_ADC12138) += ti-adc12138.o







obj-$(CONFIG_TI_ADC128S052) += ti-adc128s052.o









obj-$(CONFIG_TI_ADC161S626) += ti-adc161s626.o









obj-$(CONFIG_TI_ADS1015) += ti-ads1015.o









obj-$(CONFIG_TI_ADS1018) += ti-ads1018.o









obj-$(CONFIG_TI_ADS1100) += ti-ads1100.o









obj-$(CONFIG_TI_ADS1119) += ti-ads1119.o









obj-$(CONFIG_TI_ADS124S08) += ti-ads124s08.o
































drivers/iio/adc/ti-ads1018.c
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