PM: I2S and I2C added in the Power Management docs
Signed-off-by: Sachin Parekh <sachin.parekh@espressif.com>
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2 changed files with 14 additions and 8 deletions
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@ -1065,13 +1065,19 @@ esp_err_t i2s_driver_install(i2s_port_t i2s_num, const i2s_config_t *i2s_config,
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p_i2s_obj[i2s_num]->channel_num = i2s_config->channel_format < I2S_CHANNEL_FMT_ONLY_RIGHT ? 2 : 1;
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p_i2s_obj[i2s_num]->channel_num = i2s_config->channel_format < I2S_CHANNEL_FMT_ONLY_RIGHT ? 2 : 1;
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#ifdef CONFIG_PM_ENABLE
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#ifdef CONFIG_PM_ENABLE
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err = esp_pm_lock_create(ESP_PM_APB_FREQ_MAX, 0, "i2s_driver",
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if (i2s_config->use_apll) {
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&p_i2s_obj[i2s_num]->pm_lock);
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err = esp_pm_lock_create(ESP_PM_NO_LIGHT_SLEEP, 0, "i2s_driver", &p_i2s_obj[i2s_num]->pm_lock);
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} else {
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err = esp_pm_lock_create(ESP_PM_APB_FREQ_MAX, 0, "i2s_driver", &p_i2s_obj[i2s_num]->pm_lock);
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}
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if (err != ESP_OK) {
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if (err != ESP_OK) {
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free(p_i2s_obj[i2s_num]);
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p_i2s_obj[i2s_num] = NULL;
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ESP_LOGE(I2S_TAG, "I2S pm lock error");
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return err;
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return err;
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}
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}
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#endif //CONFIG_PM_ENABLE
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#endif //CONFIG_PM_ENABLE
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//To make sure hardware is enabled before any hardware register operations.
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//To make sure hardware is enabled before any hardware register operations.
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if (i2s_num == I2S_NUM_1) {
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if (i2s_num == I2S_NUM_1) {
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periph_module_enable(PERIPH_I2S1_MODULE);
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periph_module_enable(PERIPH_I2S1_MODULE);
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@ -108,6 +108,10 @@ Currently, the following peripheral drivers are aware of DFS and will use ``ESP_
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- SPI master
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- SPI master
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- I2C
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- I2S (If APLL clock is used then it will use ``ESP_PM_NO_LIGHT_SLEEP`` lock)
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- SDMMC
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- SDMMC
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The following drivers will hold ``ESP_PM_APB_FREQ_MAX`` lock while the driver is enabled:
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The following drivers will hold ``ESP_PM_APB_FREQ_MAX`` lock while the driver is enabled:
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@ -124,10 +128,6 @@ The following drivers will hold ``ESP_PM_APB_FREQ_MAX`` lock while the driver is
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The following peripheral drivers are not aware of DFS yet. Applications need to acquire/release locks when necessary:
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The following peripheral drivers are not aware of DFS yet. Applications need to acquire/release locks when necessary:
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- I2C
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- I2S
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- MCPWM
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- MCPWM
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- PCNT
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- PCNT
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