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PM: I2S and I2C added in the Power Management docs

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Signed-off-by: Sachin Parekh <sachin.parekh@espressif.com>
This commit is contained in:
Sachin Parekh 2019-02-22 19:48:59 +05:30 committed by bot
parent 7a2bd81870
commit f3fd849da1
2 changed files with 14 additions and 8 deletions
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14
components/driver/i2s.c
View file

@ -1087,13 +1087,19 @@ esp_err_t i2s_driver_install(i2s_port_t i2s_num, const i2s_config_t *i2s_config,
p_i2s_obj[i2s_num]->channel_num = i2s_config->channel_format < I2S_CHANNEL_FMT_ONLY_RIGHT ? 2 : 1;
#ifdef CONFIG_PM_ENABLE
err = esp_pm_lock_create(ESP_PM_APB_FREQ_MAX, 0, "i2s_driver",
&p_i2s_obj[i2s_num]->pm_lock);
if (i2s_config->use_apll) {
err = esp_pm_lock_create(ESP_PM_NO_LIGHT_SLEEP, 0, "i2s_driver", &p_i2s_obj[i2s_num]->pm_lock);
} else {
err = esp_pm_lock_create(ESP_PM_APB_FREQ_MAX, 0, "i2s_driver", &p_i2s_obj[i2s_num]->pm_lock);
}
if (err != ESP_OK) {
free(p_i2s_obj[i2s_num]);
p_i2s_obj[i2s_num] = NULL;
ESP_LOGE(I2S_TAG, "I2S pm lock error");
return err;
}
#endif //CONFIG_PM_ENABLE
//To make sure hardware is enabled before any hardware register operations.
if (i2s_num == I2S_NUM_1) {
periph_module_enable(PERIPH_I2S1_MODULE);
@ -1166,7 +1172,7 @@ esp_err_t i2s_driver_uninstall(i2s_port_t i2s_num)
}
#ifdef CONFIG_PM_ENABLE
if (p_i2s_obj[i2s_num]->pm_lock) {
esp_pm_lock_delete(p_i2s_obj[i2s_num]->pm_lock);
esp_pm_lock_delete(p_i2s_obj[i2s_num]->pm_lock);
}
#endif

8
docs/en/api-reference/system/power_management.rst
View file

@ -108,6 +108,10 @@ Currently, the following peripheral drivers are aware of DFS and will use ``ESP_
- SPI master
- I2C
- I2S (If APLL clock is used then it will use ``ESP_PM_NO_LIGHT_SLEEP`` lock)
- SDMMC
The following drivers will hold ``ESP_PM_APB_FREQ_MAX`` lock while the driver is enabled:
@ -124,10 +128,6 @@ The following drivers will hold ``ESP_PM_APB_FREQ_MAX`` lock while the driver is
The following peripheral drivers are not aware of DFS yet. Applications need to acquire/release locks when necessary:
- I2C
- I2S
- MCPWM
- PCNT