drivers: pwm_mcux_sctimer: Use clock control API
Use zephyr clock control api instead of hal functions directly in the sctimer driver Signed-off-by: Declan Snyder <declan.snyder@nxp.com>
This commit is contained in:
parent
e3bbdb6a29
commit
e48714949e
2 changed files with 19 additions and 8 deletions
|
@ -5,6 +5,6 @@ config PWM_MCUX_SCTIMER
|
|||
bool "MCUX SCTimer PWM driver"
|
||||
default y
|
||||
depends on DT_HAS_NXP_SCTIMER_PWM_ENABLED
|
||||
select PINCTRL
|
||||
depends on CLOCK_CONTROL && PINCTRL
|
||||
help
|
||||
Enable sctimer based pwm driver.
|
||||
|
|
|
@ -12,6 +12,7 @@
|
|||
#include <fsl_sctimer.h>
|
||||
#include <fsl_clock.h>
|
||||
#include <zephyr/drivers/pinctrl.h>
|
||||
#include <zephyr/drivers/clock_control.h>
|
||||
|
||||
#include <zephyr/logging/log.h>
|
||||
|
||||
|
@ -23,6 +24,8 @@ struct pwm_mcux_sctimer_config {
|
|||
SCT_Type *base;
|
||||
uint32_t prescale;
|
||||
const struct pinctrl_dev_config *pincfg;
|
||||
const struct device *clock_dev;
|
||||
clock_control_subsys_t clock_subsys;
|
||||
};
|
||||
|
||||
struct pwm_mcux_sctimer_data {
|
||||
|
@ -79,11 +82,11 @@ static int mcux_sctimer_pwm_set_cycles(const struct device *dev,
|
|||
|
||||
data->period_cycles[channel] = period_cycles;
|
||||
|
||||
/*
|
||||
* Do not divide by the prescale factor as this is accounted for in
|
||||
* the SDK function
|
||||
*/
|
||||
clock_freq = CLOCK_GetFreq(kCLOCK_BusClk);
|
||||
if (clock_control_get_rate(config->clock_dev, config->clock_subsys,
|
||||
&clock_freq)) {
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
pwm_freq = (clock_freq / config->prescale) / period_cycles;
|
||||
|
||||
if (pwm_freq == 0) {
|
||||
|
@ -117,8 +120,14 @@ static int mcux_sctimer_pwm_get_cycles_per_sec(const struct device *dev,
|
|||
uint64_t *cycles)
|
||||
{
|
||||
const struct pwm_mcux_sctimer_config *config = dev->config;
|
||||
uint32_t clock_freq;
|
||||
|
||||
*cycles = CLOCK_GetFreq(kCLOCK_BusClk) / config->prescale;
|
||||
if (clock_control_get_rate(config->clock_dev, config->clock_subsys,
|
||||
&clock_freq)) {
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
*cycles = clock_freq / config->prescale;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
@ -138,7 +147,7 @@ static int mcux_sctimer_pwm_init(const struct device *dev)
|
|||
}
|
||||
|
||||
SCTIMER_GetDefaultConfig(&pwm_config);
|
||||
/* Divide the SCT clock by 8 */
|
||||
|
||||
pwm_config.prescale_l = config->prescale - 1;
|
||||
|
||||
status = SCTIMER_Init(config->base, &pwm_config);
|
||||
|
@ -170,6 +179,8 @@ static const struct pwm_driver_api pwm_mcux_sctimer_driver_api = {
|
|||
.base = (SCT_Type *)DT_INST_REG_ADDR(n), \
|
||||
.prescale = DT_INST_PROP(n, prescaler), \
|
||||
.pincfg = PINCTRL_DT_INST_DEV_CONFIG_GET(n), \
|
||||
.clock_dev = DEVICE_DT_GET(DT_INST_CLOCKS_CTLR(n)), \
|
||||
.clock_subsys = (clock_control_subsys_t)DT_INST_CLOCKS_CELL(n, name),\
|
||||
}; \
|
||||
\
|
||||
DEVICE_DT_INST_DEFINE(n, \
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue