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Counter_mcux_ctimer: Adds PM low-power recovery support

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Enables Sleep mode (PM3) in RW61x for Ctimer.

Signed-off-by: Tsi-Chung Liew <Tsi-Chung.Liew@nxp.com>
This commit is contained in:
Tsi-Chung Liew 2025-04-28 13:39:31 -05:00 • committed by Benjamin Cabé
commit 8ac0a675ee
1 changed files with 31 additions and 2 deletions
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33
drivers/counter/counter_mcux_ctimer.c
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@ -11,6 +11,7 @@
#include <zephyr/drivers/clock_control.h>
#include <zephyr/dt-bindings/clock/mcux_lpc_syscon_clock.h>
#include <zephyr/irq.h>
#include <zephyr/pm/device.h>
LOG_MODULE_REGISTER(mcux_ctimer, CONFIG_COUNTER_LOG_LEVEL);
@ -248,7 +249,7 @@ static void mcux_lpc_ctimer_isr(const struct device *dev)
#endif
}
static int mcux_lpc_ctimer_init(const struct device *dev)
static int mcux_lpc_ctimer_init_common(const struct device *dev)
{
const struct mcux_lpc_ctimer_config *config = dev->config;
struct mcux_lpc_ctimer_data *data = dev->data;
@ -277,6 +278,32 @@ static int mcux_lpc_ctimer_init(const struct device *dev)
return 0;
}
static int mcux_lpc_ctimer_pm_action(const struct device *dev, enum pm_device_action action)
{
switch (action) {
case PM_DEVICE_ACTION_RESUME:
break;
case PM_DEVICE_ACTION_SUSPEND:
break;
case PM_DEVICE_ACTION_TURN_OFF:
break;
case PM_DEVICE_ACTION_TURN_ON:
mcux_lpc_ctimer_init_common(dev);
break;
default:
return -ENOTSUP;
}
return 0;
}
static int mcux_lpc_ctimer_init(const struct device *dev)
{
/* Rest of the init is done from the PM_DEVICE_TURN_ON action
* which is invoked by pm_device_driver_init().
*/
return pm_device_driver_init(dev, mcux_lpc_ctimer_pm_action);
}
static DEVICE_API(counter, mcux_ctimer_driver_api) = {
.start = mcux_lpc_ctimer_start,
.stop = mcux_lpc_ctimer_stop,
@ -306,8 +333,10 @@ static DEVICE_API(counter, mcux_ctimer_driver_api) = {
.prescale = DT_INST_PROP(id, prescale), \
.irq_config_func = mcux_lpc_ctimer_irq_config_##id, \
}; \
PM_DEVICE_DT_INST_DEFINE(id, mcux_lpc_ctimer_pm_action); \
static struct mcux_lpc_ctimer_data mcux_lpc_ctimer_data_##id; \
DEVICE_DT_INST_DEFINE(id, &mcux_lpc_ctimer_init, NULL, &mcux_lpc_ctimer_data_##id, \
DEVICE_DT_INST_DEFINE(id, &mcux_lpc_ctimer_init, PM_DEVICE_DT_INST_GET(id), \
&mcux_lpc_ctimer_data_##id, \
&mcux_lpc_ctimer_config_##id, POST_KERNEL, \
CONFIG_COUNTER_INIT_PRIORITY, &mcux_ctimer_driver_api); \
static void mcux_lpc_ctimer_irq_config_##id(const struct device *dev) \