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feat(i2c): Support i2c sleep retention on esp32c6/h2

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This commit is contained in:
Cao Sen Miao
2024-02-04 18:26:29 +08:00
parent 000d1407ea
commit cf521b60ea
17 changed files with 174 additions and 63 deletions
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13
components/esp_driver_i2c/i2c_common.c
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -26,6 +26,9 @@
#include "soc/i2c_periph.h"
#include "esp_clk_tree.h"
#include "clk_ctrl_os.h"
#if CONFIG_PM_POWER_DOWN_PERIPHERAL_IN_LIGHT_SLEEP
#include "esp_private/sleep_retention.h"
#endif
static const char *TAG = "i2c.common";
@@ -55,6 +58,11 @@ static esp_err_t s_i2c_bus_handle_aquire(i2c_port_num_t port_num, i2c_bus_handle
bus->spinlock = (portMUX_TYPE)portMUX_INITIALIZER_UNLOCKED;
bus->bus_mode = mode;
#if CONFIG_PM_POWER_DOWN_PERIPHERAL_IN_LIGHT_SLEEP
ret = sleep_retention_entries_create(i2c_regs_retention[port_num].link_list, i2c_regs_retention[port_num].link_num, REGDMA_LINK_PRI_7, I2C_SLEEP_RETENTION_MODULE(port_num));
ESP_RETURN_ON_ERROR(ret, TAG, "failed to allocate mem for sleep retention");
#endif
// Enable the I2C module
I2C_RCC_ATOMIC() {
i2c_ll_enable_bus_clock(bus->port_num, true);
@@ -128,6 +136,9 @@ esp_err_t i2c_release_bus_handle(i2c_bus_handle_t i2c_bus)
if (s_i2c_platform.count[port_num] == 0) {
do_deinitialize = true;
s_i2c_platform.buses[port_num] = NULL;
#if CONFIG_PM_POWER_DOWN_PERIPHERAL_IN_LIGHT_SLEEP
sleep_retention_entries_destroy(I2C_SLEEP_RETENTION_MODULE(port_num));
#endif
if (i2c_bus->intr_handle) {
ESP_RETURN_ON_ERROR(esp_intr_free(i2c_bus->intr_handle), TAG, "delete interrupt service failed");
}