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iio: vadc: Qualcomm SPMI PMIC voltage ADC driver

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The voltage ADC is peripheral of Qualcomm SPMI PMIC chips. It has
15bits resolution and register space inside PMIC accessible across
SPMI bus.

The vadc driver registers itself through IIO interface.

Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Stanimir Varbanov 2015-01-20 12:15:22 +02:00 committed by Jonathan Cameron
parent d3ba5586fa
commit 0917de94c0
3 changed files with 1031 additions and 0 deletions
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14
drivers/iio/adc/Kconfig
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@ -228,6 +228,20 @@ config QCOM_SPMI_IADC
To compile this driver as a module, choose M here: the module will To compile this driver as a module, choose M here: the module will
be called qcom-spmi-iadc. be called qcom-spmi-iadc.
config QCOM_SPMI_VADC
tristate "Qualcomm SPMI PMIC voltage ADC"
depends on SPMI
select REGMAP_SPMI
help
This is the IIO Voltage ADC driver for Qualcomm QPNP VADC Chip.
The driver supports multiple channels read. The VADC is a 15-bit
sigma-delta ADC. Some of the channels are internally used for
calibration.
To compile this driver as a module, choose M here: the module will
be called qcom-spmi-vadc.
config ROCKCHIP_SARADC config ROCKCHIP_SARADC
tristate "Rockchip SARADC driver" tristate "Rockchip SARADC driver"
depends on ARCH_ROCKCHIP || (ARM && COMPILE_TEST) depends on ARCH_ROCKCHIP || (ARM && COMPILE_TEST)

1
drivers/iio/adc/Makefile
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@ -24,6 +24,7 @@ obj-$(CONFIG_MCP3422) += mcp3422.o
obj-$(CONFIG_MEN_Z188_ADC) += men_z188_adc.o obj-$(CONFIG_MEN_Z188_ADC) += men_z188_adc.o
obj-$(CONFIG_NAU7802) += nau7802.o obj-$(CONFIG_NAU7802) += nau7802.o
obj-$(CONFIG_QCOM_SPMI_IADC) += qcom-spmi-iadc.o obj-$(CONFIG_QCOM_SPMI_IADC) += qcom-spmi-iadc.o
obj-$(CONFIG_QCOM_SPMI_VADC) += qcom-spmi-vadc.o
obj-$(CONFIG_ROCKCHIP_SARADC) += rockchip_saradc.o obj-$(CONFIG_ROCKCHIP_SARADC) += rockchip_saradc.o
obj-$(CONFIG_TI_ADC081C) += ti-adc081c.o obj-$(CONFIG_TI_ADC081C) += ti-adc081c.o
obj-$(CONFIG_TI_ADC128S052) += ti-adc128s052.o obj-$(CONFIG_TI_ADC128S052) += ti-adc128s052.o

1016
drivers/iio/adc/qcom-spmi-vadc.c Normal file
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