fix(esp_hw_support): fix writeback cache to psram after vo2 powerdown

components/esp_hw_support/port/esp32p4/pmu_sleep.c

@@ -34,6 +34,9 @@
 #include "esp_rom_sys.h"
 #include "esp_rom_uart.h"
 #include "hal/efuse_hal.h"
+#if CONFIG_SPIRAM
+#include "hal/ldo_ll.h"
+#endif
 
 #define HP(state)   (PMU_MODE_HP_ ## state)
 #define LP(state)   (PMU_MODE_LP_ ## state)
@@ -350,6 +353,14 @@ TCM_IRAM_ATTR uint32_t pmu_sleep_start(uint32_t wakeup_opt, uint32_t reject_opt,
         rtc_clk_mpll_disable();
     }
 
+
+#if CONFIG_SPIRAM && CONFIG_ESP_LDO_RESERVE_PSRAM
+    // Disable PSRAM chip power supply
+    if (dslp) {
+        ldo_ll_enable(LDO_ID2UNIT(CONFIG_ESP_LDO_CHAN_PSRAM_DOMAIN), false);
+    }
+#endif
+
     /* Start entry into sleep mode */
     pmu_ll_hp_set_sleep_enable(PMU_instance()->hal->dev);
 
@@ -358,6 +369,13 @@ TCM_IRAM_ATTR uint32_t pmu_sleep_start(uint32_t wakeup_opt, uint32_t reject_opt,
         ;
     }
 
+#if CONFIG_SPIRAM && CONFIG_ESP_LDO_RESERVE_PSRAM
+    // Enable PSRAM chip power supply after deepsleep request rejected
+    if (dslp) {
+        ldo_ll_enable(LDO_ID2UNIT(CONFIG_ESP_LDO_CHAN_PSRAM_DOMAIN), true);
+    }
+#endif
+
     return pmu_sleep_finish(dslp);
 }
 

components/esp_hw_support/port/esp32p4/private_include/pmu_param.h

@@ -325,7 +325,7 @@ typedef struct {
 #define PMU_SLEEP_DIGITAL_DSLP_CONFIG_DEFAULT(pd_flags) {               \
     .syscntl = {                                                        \
         .dig_pad_slp_sel = 0,                                           \
-        .lp_pad_hold_all = 0,                                           \
+        .lp_pad_hold_all = (pd_flags & PMU_SLEEP_PD_LP_PERIPH) ? 1 : 0, \
     }                                                                   \
 }
 

components/esp_hw_support/sleep_modes.c

@@ -62,10 +62,6 @@
 #include "hal/touch_sensor_hal.h"
 #endif
 
-#if CONFIG_SPIRAM && CONFIG_ESP_LDO_RESERVE_PSRAM
-#include "hal/ldo_ll.h"
-#endif
-
 #include "sdkconfig.h"
 #include "esp_rom_uart.h"
 #include "esp_rom_sys.h"
@@ -1114,10 +1110,6 @@ static esp_err_t IRAM_ATTR deep_sleep_start(bool allow_sleep_rejection)
     portENTER_CRITICAL(&spinlock_rtc_deep_sleep);
     esp_ipc_isr_stall_other_cpu();
     esp_ipc_isr_stall_pause();
-#if CONFIG_SPIRAM && CONFIG_ESP_LDO_RESERVE_PSRAM
-    // Disable PSRAM chip power supply
-    ldo_ll_enable(LDO_ID2UNIT(CONFIG_ESP_LDO_CHAN_PSRAM_DOMAIN), false);
-#endif
 
     // record current RTC time
     s_config.rtc_ticks_at_sleep_start = rtc_time_get();
@@ -1183,10 +1175,6 @@ static esp_err_t IRAM_ATTR deep_sleep_start(bool allow_sleep_rejection)
             ;
         }
     }
-#if CONFIG_SPIRAM && CONFIG_ESP_LDO_RESERVE_PSRAM
-    // Enable PSRAM chip power supply
-    ldo_ll_enable(LDO_ID2UNIT(CONFIG_ESP_LDO_CHAN_PSRAM_DOMAIN), true);
-#endif
     // Never returns here, except that the sleep is rejected.
     esp_ipc_isr_stall_resume();
     esp_ipc_isr_release_other_cpu();