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drivers: adc: Add sam0 support to pinctrl

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This add support to pinctrl at Atmel sam0 adc driver.

Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
This commit is contained in:
Gerson Fernando Budke 2022-03-13 13:17:01 -03:00 • committed by Marti Bolivar
commit 171440b029
2 changed files with 13 additions and 1 deletions
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10
drivers/adc/adc_sam0.c
View file

@ -8,6 +8,7 @@
#include <soc.h>
#include <drivers/adc.h>
#include <drivers/pinctrl.h>
#include <logging/log.h>
LOG_MODULE_REGISTER(adc_sam0, CONFIG_ADC_LOG_LEVEL);
@ -43,6 +44,7 @@ struct adc_sam0_data {
struct adc_sam0_cfg {
Adc *regs;
const struct pinctrl_dev_config *pcfg;
#ifdef MCLK
uint32_t mclk_mask;
@ -435,6 +437,7 @@ static int adc_sam0_init(const struct device *dev)
const struct adc_sam0_cfg *const cfg = dev->config;
struct adc_sam0_data *data = dev->data;
Adc *const adc = cfg->regs;
int retval;
#ifdef MCLK
GCLK->PCHCTRL[cfg->gclk_id].reg = cfg->gclk_mask | GCLK_PCHCTRL_CHEN;
@ -446,6 +449,11 @@ static int adc_sam0_init(const struct device *dev)
GCLK->CLKCTRL.reg = cfg->gclk | GCLK_CLKCTRL_CLKEN;
#endif
retval = pinctrl_apply_state(cfg->pcfg, PINCTRL_STATE_DEFAULT);
if (retval < 0) {
return retval;
}
ADC_PRESCALER(adc) = cfg->prescaler;
wait_synchronization(adc);
@ -541,6 +549,7 @@ do { \
#endif
#define ADC_SAM0_DEVICE(n) \
PINCTRL_DT_INST_DEFINE(n); \
static void adc_sam0_config_##n(const struct device *dev); \
static const struct adc_sam0_cfg adc_sam_cfg_##n = { \
.regs = (Adc *)DT_INST_REG_ADDR(n), \
@ -550,6 +559,7 @@ do { \
_FREQ_HZ) / \
DT_INST_PROP(n, prescaler), \
.config_func = &adc_sam0_config_##n, \
.pcfg = PINCTRL_DT_INST_DEV_CONFIG_GET(n), \
}; \
static struct adc_sam0_data adc_sam_data_##n = { \
ADC_CONTEXT_INIT_TIMER(adc_sam_data_##n, ctx), \

4
dts/bindings/adc/atmel,sam0-adc.yaml
View file

@ -5,7 +5,9 @@ description: Atmel SAM0 family ADC
compatible: "atmel,sam0-adc"
include: adc-controller.yaml
include:
- name: adc-controller.yaml
- name: pinctrl-device.yaml
properties:
reg: