From 44b9e6e05572b3accff885422bf0c5311bb0e808 Mon Sep 17 00:00:00 2001
From: xiongweichao <xiongweichao@espressif.com>
Date: Wed, 10 Nov 2021 11:46:46 +0800
Subject: [PATCH] Fix crash caused by bluetooth high level interrupt

---
 components/esp_pm/Kconfig   | 4 ++++
 components/esp_pm/pm_impl.c | 7 +++++++
 2 files changed, 11 insertions(+)

diff --git a/components/esp_pm/Kconfig b/components/esp_pm/Kconfig
index f10e888746..0f9c0bb218 100644
--- a/components/esp_pm/Kconfig
+++ b/components/esp_pm/Kconfig
@@ -113,4 +113,8 @@ menu "Power Management"
             If enabled, the I/D-cache tag memory will be retained in light sleep. Depending on the the
             cache configuration, if this option is enabled, it will consume up to 9 KB of internal RAM.
 
+    config PM_UPDATE_CCOMPARE_HLI_WORKAROUND
+        bool
+        default y if PM_ENABLE && BTDM_CTRL_HLI
+
 endmenu # "Power Management"
diff --git a/components/esp_pm/pm_impl.c b/components/esp_pm/pm_impl.c
index 55c7a47ea0..94302e15e6 100644
--- a/components/esp_pm/pm_impl.c
+++ b/components/esp_pm/pm_impl.c
@@ -536,6 +536,10 @@ static void IRAM_ATTR do_switch(pm_mode_t new_mode)
  */
 static void IRAM_ATTR update_ccompare(void)
 {
+#if CONFIG_PM_UPDATE_CCOMPARE_HLI_WORKAROUND
+    /* disable level 4 and below */
+    uint32_t irq_status = XTOS_SET_INTLEVEL(XCHAL_DEBUGLEVEL - 2);
+#endif
     uint32_t ccount = cpu_hal_get_cycle_count();
     uint32_t ccompare = XTHAL_GET_CCOMPARE(XT_TIMER_INDEX);
     if ((ccompare - CCOMPARE_MIN_CYCLES_IN_FUTURE) - ccount < UINT32_MAX / 2) {
@@ -546,6 +550,9 @@ static void IRAM_ATTR update_ccompare(void)
             XTHAL_SET_CCOMPARE(XT_TIMER_INDEX, new_ccompare);
         }
     }
+#if CONFIG_PM_UPDATE_CCOMPARE_HLI_WORKAROUND
+    XTOS_RESTORE_INTLEVEL(irq_status);
+#endif
 }
 #endif // CONFIG_FREERTOS_SYSTICK_USES_CCOUNT