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Merge branch 'fix/i2c_pm_lock_v4.0' into 'release/v4.0'

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i2c: Acquire PM lock after acquiring mutex (v4.0)

See merge request espressif/esp-idf!11832
This commit is contained in:
Mahavir Jain 2020-12-31 12:33:50 +08:00
commit 43c9d9c1cd
1 changed files with 3 additions and 3 deletions
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6
components/driver/i2c.c
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@ -1290,12 +1290,12 @@ esp_err_t i2c_master_cmd_begin(i2c_port_t i2c_num, i2c_cmd_handle_t cmd_handle,
i2c_obj_t* p_i2c = p_i2c_obj[i2c_num];
portTickType ticks_start = xTaskGetTickCount();
portBASE_TYPE res = xSemaphoreTake(p_i2c->cmd_mux, ticks_to_wait);
#ifdef CONFIG_PM_ENABLE
esp_pm_lock_acquire(p_i2c->pm_lock);
#endif
if (res == pdFALSE) {
return ESP_ERR_TIMEOUT;
}
#ifdef CONFIG_PM_ENABLE
esp_pm_lock_acquire(p_i2c->pm_lock);
#endif
xQueueReset(p_i2c->cmd_evt_queue);
if (p_i2c->status == I2C_STATUS_TIMEOUT
|| I2C[i2c_num]->status_reg.bus_busy == 1) {