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This patch adds support for STMicroelectronics STM32 ADC (analog to digital converter). It's originally based on Linux kernel v4.18-rcs drivers/iio/adc/stm32-adc*. It's composed of: - core driver (UCLASS_SIMPLE_BUS) manages common resources (clk, regu). - child drivers (UCLASS_ADC) declare each ADC, channels and handle conversions. This driver currently supports STM32H7 and STM32MP1 ADC. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
65 lines
2.1 KiB
Text
65 lines
2.1 KiB
Text
config ADC
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bool "Enable ADC drivers using Driver Model"
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help
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This enables ADC API for drivers, which allows driving ADC features
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by single and multi-channel methods for:
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- start/stop/get data for conversion of a single-channel selected by
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a number or multi-channels selected by a bitmask
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- get data mask (ADC resolution)
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ADC reference Voltage supply options:
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- methods for get Vdd/Vss reference Voltage values with polarity
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- support supply's phandle with auto-enable
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- supply polarity setting in fdt
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config ADC_EXYNOS
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bool "Enable Exynos 54xx ADC driver"
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help
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This enables basic driver for Exynos ADC compatible with Exynos54xx.
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It provides:
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- 10 analog input channels
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- 12-bit resolution
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- 600 KSPS of sample rate
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config ADC_SANDBOX
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bool "Enable Sandbox ADC test driver"
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help
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This enables driver for Sandbox ADC device emulation.
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It provides:
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- 4 analog input channels
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- 16-bit resolution
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- single and multi-channel conversion mode
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config SARADC_MESON
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bool "Enable Amlogic Meson SARADC driver"
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imply REGMAP
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help
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This enables driver for Amlogic Meson SARADC.
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It provides:
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- 8 analog input channels
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- 1O or 12 bits resolution
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- Up to 1MSPS of sample rate
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config SARADC_ROCKCHIP
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bool "Enable Rockchip SARADC driver"
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help
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This enables driver for Rockchip SARADC.
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It provides:
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- 2~6 analog input channels
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- 1O or 12 bits resolution
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- Up to 1MSPS of sample rate
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config STM32_ADC
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bool "Enable STMicroelectronics STM32 ADC driver"
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depends on ADC && (STM32H7 || ARCH_STM32MP)
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help
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This enables driver for STMicroelectronics STM32 analog-to-digital
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converter (ADC).
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A STM32 ADC block can be composed of several individual ADCs.
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Each has its own private registers, but shares some resources:
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- clock selection and prescaler
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- voltage reference
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- common registers area.
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STM32 ADC driver is composed of:
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- core driver to deal with common resources
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- child driver to deal with individual ADC resources (declare ADC
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device and associated channels, start/stop conversions)
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