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Add Power Management support to GPIO for TI cc23x0 SoC #91609

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Add Power Management support to GPIO for TI cc23x0 SoC #91609

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30 changes: 28 additions & 2 deletions drivers/gpio/gpio_cc23x0.c
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@
#include <zephyr/irq.h>
#include <zephyr/drivers/gpio.h>
#include <zephyr/drivers/gpio/gpio_utils.h>
#include <zephyr/pm/device.h>

#include <driverlib/clkctl.h>
#include <driverlib/gpio.h>
Expand Down Expand Up @@ -49,6 +50,10 @@ static int gpio_cc23x0_config(const struct device *port, gpio_pin_t pin, gpio_fl
config |= IOC_IOC0_PULLCTL_PULL_DIS;
}

if (flags & GPIO_INT_WAKEUP) {
config |= IOC_IOC0_WUENSB;
}

if (!(flags & GPIO_SINGLE_ENDED)) {
config |= IOC_IOC0_IOMODE_NORMAL;
} else {
Expand Down Expand Up @@ -242,6 +247,24 @@ static void gpio_cc23x0_isr(const struct device *dev)
gpio_fire_callbacks(&data->callbacks, dev, status);
}

#ifdef CONFIG_PM_DEVICE
static int gpio_cc23x0_pm_action(const struct device *dev, enum pm_device_action action)
{
switch (action) {
case PM_DEVICE_ACTION_RESUME:
CLKCTLEnable(CLKCTL_BASE, CLKCTL_GPIO);
break;
case PM_DEVICE_ACTION_SUSPEND:
CLKCTLDisable(CLKCTL_BASE, CLKCTL_GPIO);
break;
default:
return -ENOTSUP;
}

return 0;
}
#endif /* CONFIG_PM_DEVICE */

static int gpio_cc23x0_init(const struct device *dev)
{
/* Enable GPIO domain clock */
Expand Down Expand Up @@ -277,5 +300,8 @@ static const struct gpio_cc23x0_config gpio_cc23x0_config_0 = {

static struct gpio_cc23x0_data gpio_cc23x0_data_0;

DEVICE_DT_INST_DEFINE(0, gpio_cc23x0_init, NULL, &gpio_cc23x0_data_0, &gpio_cc23x0_config_0,
PRE_KERNEL_1, CONFIG_GPIO_INIT_PRIORITY, &gpio_cc23x0_driver_api);
PM_DEVICE_DT_DEFINE(0, gpio_cc23x0_pm_action);

DEVICE_DT_INST_DEFINE(0, gpio_cc23x0_init, PM_DEVICE_DT_GET(0), &gpio_cc23x0_data_0,
&gpio_cc23x0_config_0, PRE_KERNEL_1,
CONFIG_GPIO_INIT_PRIORITY, &gpio_cc23x0_driver_api);