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drivers: mspi: ambiq: optimize ambiq mspi device pm

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This commit optimizes the device pm for ambiq mspi driver
by adding pinctrl sleep/resume.

Signed-off-by: Hao Luo <hluo@ambiq.com>
This commit is contained in:
Hao Luo 2025-06-05 10:06:33 +08:00 • committed by Benjamin Cabé
commit e05abfdcf4
1 changed files with 19 additions and 0 deletions
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19
drivers/mspi/mspi_ambiq_ap5.c
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@ -660,6 +660,12 @@ static int mspi_ambiq_pm_action(const struct device *controller, enum pm_device_
switch (action) {
case PM_DEVICE_ACTION_RESUME:
/* Set pins to active state */
ret = pinctrl_apply_state(cfg->pcfg,
PINCTRL_STATE_PRIV_START + data->dev_id->dev_idx);
if (ret < 0) {
return ret;
}
ret = am_hal_mspi_power_control(data->mspiHandle, AM_HAL_SYSCTRL_WAKE, true);
if (ret) {
LOG_INST_ERR(cfg->log, "%u, fail to resume MSPI, code:%d.", __LINE__,
@ -669,6 +675,19 @@ static int mspi_ambiq_pm_action(const struct device *controller, enum pm_device_
break;
case PM_DEVICE_ACTION_SUSPEND:
/* Move pins to sleep state */
ret = pinctrl_apply_state(cfg->pcfg, PINCTRL_STATE_SLEEP);
if ((ret < 0) && (ret != -ENOENT)) {
/*
* If returning -ENOENT, no pins where defined for sleep mode :
* Do not output on console (might sleep already) when going to
* sleep,
* "MSPI pinctrl sleep state not available"
* and don't block PM suspend.
* Else return the error.
*/
return ret;
}
ret = am_hal_mspi_power_control(data->mspiHandle, AM_HAL_SYSCTRL_DEEPSLEEP, true);
if (ret) {
LOG_INST_ERR(cfg->log, "%u, fail to suspend MSPI, code:%d.", __LINE__,