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adc: updates to MEC172x adc to support pinctrl

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Changes to adc module to support pinctrl.

Signed-off-by: Jay Vasanth <jay.vasanth@microchip.com>
This commit is contained in:
Jay Vasanth 2022-01-31 17:45:22 -05:00 • committed by Carles Cufí
commit 9138d81365
2 changed files with 19 additions and 1 deletions
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12
drivers/adc/adc_mchp_xec_v2.c
View file

@ -12,6 +12,7 @@ LOG_MODULE_REGISTER(adc_mchp_xec);
#include <drivers/adc.h>
#include <drivers/interrupt_controller/intc_mchp_xec_ecia.h>
#include <drivers/pinctrl.h>
#include <soc.h>
#include <errno.h>
@ -37,6 +38,7 @@ struct adc_xec_config {
uint8_t girq_repeat_pos;
uint8_t pcr_regidx;
uint8_t pcr_bitpos;
const struct pinctrl_dev_config *pcfg;
};
struct adc_xec_data {
@ -304,6 +306,13 @@ static int adc_xec_init(const struct device *dev)
const struct adc_xec_config *const cfg = ADC_XEC_CONFIG(dev);
struct adc_xec_regs *adc_regs = ADC_XEC_REG_BASE(dev);
struct adc_xec_data *data = ADC_XEC_DATA(dev);
int ret;
ret = pinctrl_apply_state(cfg->pcfg, PINCTRL_STATE_DEFAULT);
if (ret != 0) {
LOG_ERR("XEC ADC V2 pinctrl setup failed (%d)", ret);
return ret;
}
adc_regs->control_reg = XEC_ADC_CTRL_ACTIVATE
| XEC_ADC_CTRL_POWER_SAVER_DIS
@ -326,6 +335,8 @@ static int adc_xec_init(const struct device *dev)
return 0;
}
PINCTRL_DT_INST_DEFINE(0);
static struct adc_xec_config adc_xec_dev_cfg_0 = {
.base_addr = (uintptr_t)(DT_INST_REG_ADDR(0)),
.girq_single = (uint8_t)(DT_INST_PROP_BY_IDX(0, girqs, 0)),
@ -334,6 +345,7 @@ static struct adc_xec_config adc_xec_dev_cfg_0 = {
.girq_repeat_pos = (uint8_t)(DT_INST_PROP_BY_IDX(0, girqs, 3)),
.pcr_regidx = (uint8_t)(DT_INST_PROP_BY_IDX(0, pcrs, 0)),
.pcr_bitpos = (uint8_t)(DT_INST_PROP_BY_IDX(0, pcrs, 1)),
.pcfg = PINCTRL_DT_INST_DEV_CONFIG_GET(0),
};
static struct adc_xec_data adc_xec_dev_data_0 = {

8
dts/bindings/adc/microchip,xec-adc-v2.yaml
View file

@ -6,7 +6,7 @@ description: Microchip XEC ADC
compatible: "microchip,xec-adc-v2"
include: adc-controller.yaml
include: [adc-controller.yaml, pinctrl-device.yaml]
properties:
reg:
@ -28,6 +28,12 @@ properties:
required: true
description: ADC PCR register index and bit position
pinctrl-0:
required: true
pinctrl-names:
required: true
"#girq-cells":
type: int
const: 2