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fix: wait spi bus idle before hold CS pin

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- Wait for spi bus idle before holding CS pin to prevent hold selected state during sleep
This commit is contained in:
wuzhenghui 2023-06-25 17:50:17 +08:00
parent b9550a1609
commit 9f993705a6
2 changed files with 5 additions and 4 deletions
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4
components/esp_hw_support/sleep_cpu.c
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@ -706,10 +706,6 @@ esp_err_t IRAM_ATTR esp_sleep_cpu_retention(uint32_t (*goto_sleep)(uint32_t, uin
{
uint32_t mstatus = save_mstatus_and_disable_global_int();
/* wait cache idle */
Cache_Freeze_ICache_Enable(CACHE_FREEZE_ACK_BUSY);
Cache_Freeze_ICache_Disable();
cpu_domain_dev_regs_save(s_cpu_retention.retent.plic_frame);
cpu_domain_dev_regs_save(s_cpu_retention.retent.clint_frame);
cpu_domain_dev_regs_save(s_cpu_retention.retent.intpri_frame);

5
components/esp_hw_support/sleep_modes.c
View File

@ -44,6 +44,7 @@
#include "soc/soc_caps.h"
#include "regi2c_ctrl.h" //For `REGI2C_ANA_CALI_PD_WORKAROUND`, temp
#include "hal/cache_hal.h"
#include "hal/wdt_hal.h"
#include "hal/uart_hal.h"
#if SOC_TOUCH_SENSOR_SUPPORTED
@ -746,6 +747,8 @@ static esp_err_t IRAM_ATTR esp_sleep_start(uint32_t pd_flags, esp_sleep_mode_t m
#if (CONFIG_PM_POWER_DOWN_PERIPHERAL_IN_LIGHT_SLEEP && CONFIG_ESP_SLEEP_FLASH_LEAKAGE_WORKAROUND)
#if !CONFIG_IDF_TARGET_ESP32H2 // ESP32H2 TODO IDF-7359: related rtcio ll func not supported yet
if(!(pd_flags & PMU_SLEEP_PD_VDDSDIO)) {
/* Cache Suspend 1: will wait cache idle in cache suspend, also means SPI bus IDLE, then we can hold SPI CS pin safely*/
suspend_cache();
gpio_ll_hold_en(&GPIO, SPI_CS0_GPIO_NUM);
}
#endif
@ -768,6 +771,8 @@ static esp_err_t IRAM_ATTR esp_sleep_start(uint32_t pd_flags, esp_sleep_mode_t m
#if !CONFIG_IDF_TARGET_ESP32H2 // ESP32H2 TODO IDF-7359: related rtcio ll func not supported yet
if(!(pd_flags & PMU_SLEEP_PD_VDDSDIO)) {
gpio_ll_hold_dis(&GPIO, SPI_CS0_GPIO_NUM);
/* Cache Resume 1: Resume cache for continue running*/
resume_cache();
}
#endif
#endif