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drivers: pwm: add pinctrl support for mcux PWT driver

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Enable pinctrl support for mcux pwm capture pwt driver

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
This commit is contained in:
Daniel DeGrasse 2022-03-08 13:05:51 -06:00 • committed by Carles Cufí
commit 9b9450d8f3
4 changed files with 14 additions and 1 deletions
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1
drivers/pwm/Kconfig.mcux_pwt
View file

@ -6,5 +6,6 @@
config PWM_MCUX_PWT
bool "MCUX PWT PWM capture driver"
depends on HAS_MCUX_PWT && CLOCK_CONTROL && PWM_CAPTURE
select PINCTRL
help
Enable the MCUX Pulse Width Timer (PWT) PWM capture driver.

11
drivers/pwm/pwm_mcux_pwt.c
View file

@ -12,6 +12,7 @@
#include <soc.h>
#include <fsl_pwt.h>
#include <fsl_clock.h>
#include <drivers/pinctrl.h>
#include <logging/log.h>
LOG_MODULE_REGISTER(pwm_mcux_pwt, CONFIG_PWM_LOG_LEVEL);
@ -26,6 +27,7 @@ struct mcux_pwt_config {
pwt_clock_source_t pwt_clock_source;
pwt_clock_prescale_t prescale;
void (*irq_config_func)(const struct device *dev);
const struct pinctrl_dev_config *pincfg;
};
struct mcux_pwt_data {
@ -279,6 +281,7 @@ static int mcux_pwt_init(const struct device *dev)
const struct mcux_pwt_config *config = dev->config;
struct mcux_pwt_data *data = dev->data;
pwt_config_t *pwt_config = &data->pwt_config;
int err;
if (clock_control_get_rate(config->clock_dev, config->clock_subsys,
&data->clock_freq)) {
@ -292,6 +295,11 @@ static int mcux_pwt_init(const struct device *dev)
pwt_config->enableFirstCounterLoad = true;
PWT_Init(config->base, pwt_config);
err = pinctrl_apply_state(config->pincfg, PINCTRL_STATE_DEFAULT);
if (err) {
return err;
}
config->irq_config_func(dev);
return 0;
@ -310,6 +318,8 @@ static const struct pwm_driver_api mcux_pwt_driver_api = {
#define PWT_DEVICE(n) \
static void mcux_pwt_config_func_##n(const struct device *dev); \
\
PINCTRL_DT_INST_DEFINE(n); \
\
static const struct mcux_pwt_config mcux_pwt_config_##n = { \
.base = (PWT_Type *)DT_INST_REG_ADDR(n), \
.clock_dev = DEVICE_DT_GET(DT_INST_CLOCKS_CTLR(n)), \
@ -319,6 +329,7 @@ static const struct pwm_driver_api mcux_pwt_driver_api = {
.prescale = \
TO_PWT_PRESCALE_DIVIDE(DT_INST_PROP(n, prescaler)), \
.irq_config_func = mcux_pwt_config_func_##n, \
.pincfg = PINCTRL_DT_INST_DEV_CONFIG_GET(n), \
}; \
\
static struct mcux_pwt_data mcux_pwt_data_##n; \

2
dts/bindings/pwm/nxp,kinetis-pwt.yaml
View file

@ -5,7 +5,7 @@ description: Kinetis PWT PWM Capture
compatible: "nxp,kinetis-pwt"
include: [pwm-controller.yaml, base.yaml]
include: [pwm-controller.yaml, base.yaml, pinctrl-device.yaml]
properties:
reg:

1
tests/drivers/pwm/pwm_loopback/boards/twr_ke18f.overlay
View file

@ -36,6 +36,7 @@
status = "okay";
prescaler = <32>;
pinctrl-0 = <&pwt_default>;
pinctrl-names = "default";
};
&ftm2 {