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cxd56_power: Add lowerhalf interface to keep power when cold sleep

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Add board interface to keep power when entering/recover sleep.
Some driver wants to keep power when entering sleep mode.
This commit is contained in:
SPRESENSE 2022-11-28 15:11:29 +09:00 committed by Alin Jerpelea
parent bbc8562f65
commit 97a6fd4d18
2 changed files with 91 additions and 13 deletions
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20
boards/arm/cxd56xx/spresense/include/cxd56_power.h
View file

@ -202,6 +202,26 @@ bool board_xtal_power_monitor(void);
int board_lna_power_control(bool en);
/****************************************************************************
* Name: board_set_reset_gpo
*
* Description:
* Set gpo to off when power off the board.
*
****************************************************************************/
int board_set_reset_gpo(int target);
/****************************************************************************
* Name: board_unset_reset_gpo
*
* Description:
* Keep gpo status when power off the board.
*
****************************************************************************/
int board_unset_reset_gpo(int target);
#undef EXTERN
#if defined(__cplusplus)
}

84
boards/arm/cxd56xx/spresense/src/cxd56_power.c
View file

@ -46,6 +46,8 @@
* Pre-processor Definitions
****************************************************************************/
#define BOARD_GPO_MAX_PIN_NUM 7
/****************************************************************************
* Private Types
****************************************************************************/
@ -62,6 +64,7 @@ static struct pm_cpu_freqlock_s g_hv_lock =
PM_CPUFREQLOCK_INIT(PM_CPUFREQLOCK_TAG('B', 'P', 0),
PM_CPUFREQLOCK_FLAG_HV);
#endif
static uint8_t g_reset_gpo_targets = 0xFF;
/****************************************************************************
* Public Data
@ -127,21 +130,39 @@ int board_pmic_write(uint8_t addr, void *buf, uint32_t size)
int board_power_setup(int status)
{
int pin;
#ifdef CONFIG_BOARD_USB_DISABLE_IN_DEEP_SLEEPING
int ret;
uint8_t val = 0;
#endif
uint32_t bootcause;
/* Enable USB after wakeup from deep sleeping */
bootcause = up_pm_get_bootcause();
switch (bootcause)
{
case PM_BOOT_POR_NORMAL:
case PM_BOOT_POR_DEADBATT:
case PM_BOOT_WDT_REBOOT:
case PM_BOOT_WDT_RESET:
/* Power off Hi-Z of GPO switches (except for GPO0)
* in first boot-up stage */
for (pin = 1; pin <= BOARD_GPO_MAX_PIN_NUM; pin++)
{
if (cxd56_pmic_get_gpo_hiz(PMIC_GET_CH(PMIC_GPO(pin))) == -1)
{
board_power_control(PMIC_GPO(pin), false);
}
}
break;
#ifdef CONFIG_BOARD_USB_DISABLE_IN_DEEP_SLEEPING
case PM_BOOT_DEEP_WKUPL:
case PM_BOOT_DEEP_WKUPS:
case PM_BOOT_DEEP_RTC:
case PM_BOOT_DEEP_OTHERS:
/* Enable USB after wakeup from deep sleeping */
ret = cxd56_pmic_read(PMIC_REG_CNT_USB2, &val, sizeof(val));
if ((ret == 0) && (val & PMIC_SET_CHGOFF))
{
@ -149,10 +170,10 @@ int board_power_setup(int status)
cxd56_pmic_write(PMIC_REG_CNT_USB2, &val, sizeof(val));
}
break;
#endif
default:
break;
}
#endif
/* Disable unused DDC/LDO permanently */
@ -162,15 +183,14 @@ int board_power_setup(int status)
board_power_control(POWER_AUDIO_DVDD, false);
/* Power off all of GPO switches (except for GPO0) in boot-up stage */
board_power_control(PMIC_GPO(1) | PMIC_GPO(2) | PMIC_GPO(3) | PMIC_GPO(4) |
PMIC_GPO(5) | PMIC_GPO(6) | PMIC_GPO(7), false);
/* Set GPO0 to Hi-Z */
cxd56_pmic_set_gpo_hiz(PMIC_GET_CH(PMIC_GPO(0)));
/* Initialize reset GPO targets (reset all) */
g_reset_gpo_targets = 0xFF;
return 0;
}
@ -519,6 +539,8 @@ int board_lna_power_control(bool en)
#ifdef CONFIG_BOARDCTL_RESET
int board_reset(int status)
{
board_power_control(PMIC_TYPE_GPO | g_reset_gpo_targets, false);
/* Restore the original state for bootup after power cycle */
if (!up_interrupt_context())
@ -563,11 +585,7 @@ int board_power_off(int status)
enum pm_sleepmode_e mode;
uint8_t val;
/* Power off explicitly because GPOs are kept during deep sleeping */
board_power_control(PMIC_GPO(0) | PMIC_GPO(1) | PMIC_GPO(2) | PMIC_GPO(3) |
PMIC_GPO(4) | PMIC_GPO(5) | PMIC_GPO(6) | PMIC_GPO(7),
false);
board_power_control(PMIC_TYPE_GPO | g_reset_gpo_targets, false);
/* Set DDC_ANA output to HiZ before sleeping for power saving */
@ -605,3 +623,43 @@ int board_power_off(int status)
return 0;
}
#endif
/****************************************************************************
* Name: board_set_reset_gpo
*
* Description:
* Set gpo to off when power off the board.
*
****************************************************************************/
int board_set_reset_gpo(int target)
{
if ((PMIC_GET_TYPE(target) & PMIC_TYPE_GPO) == 0)
{
return -1;
}
g_reset_gpo_targets |= PMIC_GET_CH(target);
return 0;
}
/****************************************************************************
* Name: board_unset_reset_gpo
*
* Description:
* Keep gpo status when power off the board.
*
****************************************************************************/
int board_unset_reset_gpo(int target)
{
if ((PMIC_GET_TYPE(target) & PMIC_TYPE_GPO) == 0)
{
return -1;
}
g_reset_gpo_targets &= ~PMIC_GET_CH(target);
return 0;
}