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https://github.com/AsahiLinux/u-boot
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5decbf5300
This commit adds:
- new uclass id: UCLASS_ADC
- new uclass driver: drivers/adc/adc-uclass.c
The new uclass's API allows for ADC operation on:
* single-channel with channel selection by a number
* multti-channel with channel selection by bit mask
ADC uclass's functions:
* single-channel:
- adc_start_channel() - start channel conversion
- adc_channel_data() - get conversion data
- adc_channel_single_shot() - start/get conversion data
* multi-channel:
- adc_start_channels() - start selected channels conversion
- adc_channels_data() - get conversion data
- adc_channels_single_shot() - start/get conversion data for channels
selected by bit mask
* general:
- adc_stop() - stop the conversion
- adc_vdd_value() - positive reference Voltage value with polarity [uV]
- adc_vss_value() - negative reference Voltage value with polarity [uV]
- adc_data_mask() - conversion data bit mask
The device tree can provide below constraints/properties:
- vdd-polarity-negative: if true: Vdd = vdd-microvolts * (-1)
- vss-polarity-negative: if true: Vss = vss-microvolts * (-1)
- vdd-supply: phandle to Vdd regulator's node
- vss-supply: phandle to Vss regulator's node
And optional, checked only if the above corresponding, doesn't exist:
- vdd-microvolts: positive reference Voltage [uV]
- vss-microvolts: negative reference Voltage [uV]
Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
81 lines
1.4 KiB
Text
81 lines
1.4 KiB
Text
menu "Device Drivers"
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source "drivers/core/Kconfig"
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# types of drivers sorted in alphabetical order
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source "drivers/adc/Kconfig"
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source "drivers/block/Kconfig"
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source "drivers/clk/Kconfig"
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source "drivers/cpu/Kconfig"
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source "drivers/crypto/Kconfig"
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source "drivers/demo/Kconfig"
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source "drivers/dfu/Kconfig"
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source "drivers/dma/Kconfig"
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source "drivers/gpio/Kconfig"
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source "drivers/hwmon/Kconfig"
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source "drivers/i2c/Kconfig"
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source "drivers/input/Kconfig"
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source "drivers/led/Kconfig"
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source "drivers/misc/Kconfig"
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source "drivers/mmc/Kconfig"
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source "drivers/mtd/Kconfig"
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source "drivers/net/Kconfig"
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source "drivers/pci/Kconfig"
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source "drivers/pcmcia/Kconfig"
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source "drivers/pinctrl/Kconfig"
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source "drivers/power/Kconfig"
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source "drivers/ram/Kconfig"
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source "drivers/remoteproc/Kconfig"
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source "drivers/rtc/Kconfig"
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source "drivers/serial/Kconfig"
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source "drivers/sound/Kconfig"
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source "drivers/spi/Kconfig"
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source "drivers/thermal/Kconfig"
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source "drivers/timer/Kconfig"
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source "drivers/tpm/Kconfig"
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source "drivers/usb/Kconfig"
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source "drivers/video/Kconfig"
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source "drivers/watchdog/Kconfig"
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config PHYS_TO_BUS
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bool "Custom physical to bus address mapping"
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help
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Some SoCs use a different address map for CPU physical addresses and
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peripheral DMA master accesses. If yours does, select this option in
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your platform's Kconfig, and implement the appropriate mapping
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functions in your platform's support code.
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endmenu
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