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feat(esp_hw_support): isolate all digital io to suppress pad leakage on TOP pd sleep

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This commit is contained in:
wuzhenghui
2026-05-07 08:39:56 +08:00
parent 8d3732c053
commit 7c10126309
12 changed files with 321 additions and 75 deletions
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components/esp_hw_support/include/esp_private/esp_sleep_internal.h
+27 -5
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@@ -97,14 +97,36 @@ esp_err_t esp_sleep_acquire_lp_use_xtal(void);
esp_err_t esp_sleep_release_lp_use_xtal(void);
#endif
#if !SOC_GPIO_SUPPORT_HOLD_SINGLE_IO_IN_DSLP
#if !SOC_GPIO_SUPPORT_HOLD_SINGLE_IO_IN_DSLP || SOC_GPIO_NEED_SOFT_ISOLATE_DURING_PD
/**
* @brief Isolate all digital IOs except those that are held during deep sleep
* @brief Soft-isolate valid digital IO pads (SOC_GPIO_VALID_DIGITAL_IO_PAD_MASK) for leakage control
*
* Reduce digital IOs current leakage during deep sleep.
* Skips pads that are digitally held and pads reserved by the driver.
* MSPI signal pads are not in this pass; use esp_sleep_isolate_mspi_gpio() after cache/MSPI idle.
*
* @param do_backup If true, back up each pad's pu/pd/ie/oe/fun_sel before isolating so that
* esp_sleep_restore_isolated_digital_gpio() can restore them later.
* Pass false when restore is not needed (e.g. deep sleep).
*/
void esp_sleep_isolate_digital_gpio(void);
#endif
void esp_sleep_isolate_digital_gpio(bool do_backup);
/**
* @brief Backup and isolate (or pull up) the five base MSPI lines (CLK/Q/D/HD/WP)
*
* If CONFIG_ESP_SLEEP_MSPI_NEED_ALL_IO_PU && !SOC_MSPI_HAS_INDEPENT_IOMUX, enables pull-up only;
* otherwise full pad isolate like esp_sleep_isolate_digital_gpio. Intended after SPI bus is idle
* (e.g. light sleep with TOP power-down).
*/
void esp_sleep_isolate_mspi_gpio(void);
/**
* @brief Restore pu/pd/ie/oe and IOMUX fun_sel for every GPIO in the soft-isolate backup bitmap
*
* Reverses esp_sleep_isolate_digital_gpio / esp_sleep_isolate_mspi_gpio. Call after wake before
* normal Flash access.
*/
void esp_sleep_restore_isolated_digital_gpio(void);
#endif // !SOC_GPIO_SUPPORT_HOLD_SINGLE_IO_IN_DSLP || SOC_GPIO_NEED_SOFT_ISOLATE_DURING_PD
#if SOC_PM_SUPPORT_PMU_CLK_ICG
/**