mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 09:48:16 +00:00
a466ecec48
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
|
|
bool "Enable ADC drivers using Driver Model"
|
|
help
|
|
This enables ADC API for drivers, which allows driving ADC features
|
|
by single and multi-channel methods for:
|
|
- start/stop/get data for conversion of a single-channel selected by
|
|
a number or multi-channels selected by a bitmask
|
|
- get data mask (ADC resolution)
|
|
ADC reference Voltage supply options:
|
|
- methods for get Vdd/Vss reference Voltage values with polarity
|
|
- support supply's phandle with auto-enable
|
|
- supply polarity setting in fdt
|
|
|
|
config ADC_EXYNOS
|
|
bool "Enable Exynos 54xx ADC driver"
|
|
help
|
|
This enables basic driver for Exynos ADC compatible with Exynos54xx.
|
|
It provides:
|
|
- 10 analog input channels
|
|
- 12-bit resolution
|
|
- 600 KSPS of sample rate
|
|
|
|
config ADC_SANDBOX
|
|
bool "Enable Sandbox ADC test driver"
|
|
help
|
|
This enables driver for Sandbox ADC device emulation.
|
|
It provides:
|
|
- 4 analog input channels
|
|
- 16-bit resolution
|
|
- single and multi-channel conversion mode
|
|
|
|
config SARADC_MESON
|
|
bool "Enable Amlogic Meson SARADC driver"
|
|
imply REGMAP
|
|
help
|
|
This enables driver for Amlogic Meson SARADC.
|
|
It provides:
|
|
- 8 analog input channels
|
|
- 1O or 12 bits resolution
|
|
- Up to 1MSPS of sample rate
|
|
|
|
config SARADC_ROCKCHIP
|
|
bool "Enable Rockchip SARADC driver"
|
|
help
|
|
This enables driver for Rockchip SARADC.
|
|
It provides:
|
|
- 2~6 analog input channels
|
|
- 1O or 12 bits resolution
|
|
- Up to 1MSPS of sample rate
|
|
|
|
config STM32_ADC
|
|
bool "Enable STMicroelectronics STM32 ADC driver"
|
|
depends on ADC && (STM32H7 || ARCH_STM32MP)
|
|
help
|
|
This enables driver for STMicroelectronics STM32 analog-to-digital
|
|
converter (ADC).
|
|
A STM32 ADC block can be composed of several individual ADCs.
|
|
Each has its own private registers, but shares some resources:
|
|
- clock selection and prescaler
|
|
- voltage reference
|
|
- common registers area.
|
|
STM32 ADC driver is composed of:
|
|
- core driver to deal with common resources
|
|
- child driver to deal with individual ADC resources (declare ADC
|
|
device and associated channels, start/stop conversions)
|