From 5decbf53006c8e2aed8e5506b3961810c1544b3c Mon Sep 17 00:00:00 2001 From: Przemyslaw Marczak Date: Tue, 27 Oct 2015 13:08:00 +0100 Subject: dm: adc: add simple ADC uclass implementation 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 Cc: Simon Glass Signed-off-by: Minkyu Kang --- drivers/Kconfig | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/Kconfig') diff --git a/drivers/Kconfig b/drivers/Kconfig index ba88b5e..c481e93 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -4,6 +4,8 @@ source "drivers/core/Kconfig" # types of drivers sorted in alphabetical order +source "drivers/adc/Kconfig" + source "drivers/block/Kconfig" source "drivers/clk/Kconfig" -- cgit v1.1