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soc: rw6xx: Add support to wakeup from an external pin

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Add support to wakeup from an external pin

Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
This commit is contained in:
Mahesh Mahadevan 2024-06-19 16:18:55 -05:00 • committed by Fabio Baltieri
commit d27facff57
2 changed files with 77 additions and 0 deletions
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5
boards/nxp/rd_rw612_bga/rd_rw612_bga.dtsi
View file

@ -282,3 +282,8 @@ zephyr_udc0: &usb_otg {
status = "okay";
wakeup-source;
};
&pin1 {
status = "okay";
wakeup-level = "low";
};

72
soc/nxp/rw/power.c
View file

@ -6,6 +6,7 @@
#include <zephyr/kernel.h>
#include <zephyr/pm/pm.h>
#include <zephyr/init.h>
#include <zephyr/drivers/pinctrl.h>
#include "fsl_power.h"
@ -27,11 +28,58 @@ LOG_MODULE_DECLARE(soc, CONFIG_SOC_LOG_LEVEL);
power_sleep_config_t slp_cfg;
#if DT_NODE_HAS_STATUS(DT_NODELABEL(pin0), okay) || DT_NODE_HAS_STATUS(DT_NODELABEL(pin1), okay)
pinctrl_soc_pin_t pin_cfg;
#endif
#if DT_NODE_HAS_STATUS(DT_NODELABEL(pin0), okay)
static void pin0_isr(const struct device *dev)
{
uint8_t level = ~(DT_ENUM_IDX(DT_NODELABEL(pin0), wakeup_level)) & 0x1;
POWER_ConfigWakeupPin(kPOWER_WakeupPin0, level);
NVIC_ClearPendingIRQ(DT_IRQN(DT_NODELABEL(pin0)));
DisableIRQ(DT_IRQN(DT_NODELABEL(pin0)));
POWER_DisableWakeup(DT_IRQN(DT_NODELABEL(pin0)));
}
#endif
#if DT_NODE_HAS_STATUS(DT_NODELABEL(pin1), okay)
static void pin1_isr(const struct device *dev)
{
uint8_t level = ~(DT_ENUM_IDX(DT_NODELABEL(pin1), wakeup_level)) & 0x1;
POWER_ConfigWakeupPin(kPOWER_WakeupPin1, level);
NVIC_ClearPendingIRQ(DT_IRQN(DT_NODELABEL(pin1)));
DisableIRQ(DT_IRQN(DT_NODELABEL(pin1)));
POWER_DisableWakeup(DT_IRQN(DT_NODELABEL(pin1)));
}
#endif
/* Invoke Low Power/System Off specific Tasks */
__weak void pm_state_set(enum pm_state state, uint8_t substate_id)
{
ARG_UNUSED(substate_id);
#if DT_NODE_HAS_STATUS(DT_NODELABEL(pin0), okay)
pin_cfg = IOMUX_GPIO_IDX(24) | IOMUX_TYPE(IOMUX_GPIO);
pinctrl_configure_pins(&pin_cfg, 1, 0);
POWER_ConfigWakeupPin(kPOWER_WakeupPin0, DT_ENUM_IDX(DT_NODELABEL(pin0), wakeup_level));
POWER_ClearWakeupStatus(DT_IRQN(DT_NODELABEL(pin0)));
NVIC_ClearPendingIRQ(DT_IRQN(DT_NODELABEL(pin0)));
EnableIRQ(DT_IRQN(DT_NODELABEL(pin0)));
POWER_EnableWakeup(DT_IRQN(DT_NODELABEL(pin0)));
#endif
#if DT_NODE_HAS_STATUS(DT_NODELABEL(pin1), okay)
pin_cfg = IOMUX_GPIO_IDX(25) | IOMUX_TYPE(IOMUX_GPIO);
pinctrl_configure_pins(&pin_cfg, 1, 0);
POWER_ConfigWakeupPin(kPOWER_WakeupPin1, DT_ENUM_IDX(DT_NODELABEL(pin1), wakeup_level));
POWER_ClearWakeupStatus(DT_IRQN(DT_NODELABEL(pin1)));
NVIC_ClearPendingIRQ(DT_IRQN(DT_NODELABEL(pin1)));
EnableIRQ(DT_IRQN(DT_NODELABEL(pin1)));
POWER_EnableWakeup(DT_IRQN(DT_NODELABEL(pin1)));
#endif
/* Set PRIMASK */
__disable_irq();
/* Set BASEPRI to 0 */
@ -71,6 +119,30 @@ static int nxp_rw6xx_power_init(void)
slp_cfg.memPdCfg = suspend_sleepconfig[3];
slp_cfg.pm3BuckCfg = suspend_sleepconfig[4];
#if DT_NODE_HAS_STATUS(DT_NODELABEL(pin0), okay)
/* PIN 0 uses GPIO0_24, confiure the pin as GPIO */
pin_cfg = IOMUX_GPIO_IDX(24) | IOMUX_TYPE(IOMUX_GPIO);
pinctrl_configure_pins(&pin_cfg, 1, 0);
/* Initialize the settings in the PMU for this wakeup interrupt */
pin0_isr(NULL);
IRQ_CONNECT(DT_IRQN(DT_NODELABEL(pin0)), DT_IRQ(DT_NODELABEL(pin0), priority), pin0_isr,
NULL, 0);
#endif
#if DT_NODE_HAS_STATUS(DT_NODELABEL(pin1), okay)
/* PIN 1 uses GPIO0_25, confiure the pin as GPIO */
pin_cfg = IOMUX_GPIO_IDX(25) | IOMUX_TYPE(IOMUX_GPIO);
pinctrl_configure_pins(&pin_cfg, 1, 0);
/* Initialize the settings in the PMU for this wakeup interrupt */
pin1_isr(NULL);
IRQ_CONNECT(DT_IRQN(DT_NODELABEL(pin1)), DT_IRQ(DT_NODELABEL(pin1), priority), pin1_isr,
NULL, 0);
#endif
return 0;
}