patrick/zephyr
1
0
Fork 0
Code Issues Pull requests Actions 8 Packages Projects Releases Wiki Activity

adc-mcux: add support for adc16 channel multiplex

Browse source 
Channels 4..7 are multiplexed on adc16. The NXP HAL exposes
ADC16_SetChannelMuxMode but this function is not yet included
in Zephy. The following patch adds channel-mux-b to the dts
enabling the use of the alternate channels of 16 bit adc.

Signed-off-by: Andreas Dröscher <github@anticat.ch>
This commit is contained in:
Andreas Dröscher 2020-10-22 22:54:33 +02:00 committed by Maureen Helm
parent 09e95a26a4
commit a812f3d7b6
2 changed files with 11 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/adc/adc_mcux_adc16.c
View file

@ -20,6 +20,7 @@ LOG_MODULE_REGISTER(adc_mcux_adc16);
struct mcux_adc16_config {
ADC_Type *base;
void (*irq_config_func)(const struct device *dev);
bool channel_mux_b;
};
struct mcux_adc16_data {
@ -256,7 +257,9 @@ static int mcux_adc16_init(const struct device *dev)
ADC16_SetHardwareAverage(base, kADC16_HardwareAverageCount32);
ADC16_DoAutoCalibration(base);
#endif
if (config->channel_mux_b) {
ADC16_SetChannelMuxMode(base, kADC16_ChannelMuxB);
}
ADC16_EnableHardwareTrigger(base, false);
config->irq_config_func(dev);
@ -281,6 +284,7 @@ static const struct adc_driver_api mcux_adc16_driver_api = {
static const struct mcux_adc16_config mcux_adc16_config_##n = { \
.base = (ADC_Type *)DT_INST_REG_ADDR(n), \
.irq_config_func = mcux_adc16_config_func_##n, \
.channel_mux_b = DT_INST_PROP(n, channel_mux_b), \
}; \
\
static struct mcux_adc16_data mcux_adc16_data_##n = { \

6
dts/bindings/adc/nxp,kinetis-adc16.yaml
View file

@ -11,6 +11,12 @@ properties:
reg:
required: true
channel-mux-b:
type: boolean
required: false
description: |
Use alternate set (b instead of a) of ADC channels
interrupts:
required: true