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Merge branch 'bugfix/rtc_i2c_stuck_after_esp_restart' into 'master'

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ulp risc-v rtc i2c: Fix a bug where RTC I2C failed to initialize after esp_restart()

Closes IDFGH-9065

See merge request espressif/esp-idf!21862
This commit is contained in:
Sudeep Mohanty
2023-01-05 15:59:08 +08:00
parent 2df00a4b17 4a410391cc
commit 28ccb3b414
1 changed files with 5 additions and 1 deletions
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6
components/ulp/ulp_riscv/ulp_riscv_i2c.c
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@@ -1,5 +1,5 @@
/* /*
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD * SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
* *
* SPDX-License-Identifier: Apache-2.0 * SPDX-License-Identifier: Apache-2.0
*/ */
@@ -398,6 +398,10 @@ void ulp_riscv_i2c_master_write_to_device(uint8_t *data_wr, size_t size)
esp_err_t ulp_riscv_i2c_master_init(const ulp_riscv_i2c_cfg_t *cfg) esp_err_t ulp_riscv_i2c_master_init(const ulp_riscv_i2c_cfg_t *cfg)
{ {
/* Clear any stale config registers */
WRITE_PERI_REG(RTC_I2C_CTRL_REG, 0);
WRITE_PERI_REG(SENS_SAR_I2C_CTRL_REG, 0);
/* Reset RTC I2C */ /* Reset RTC I2C */
#if CONFIG_IDF_TARGET_ESP32S2 #if CONFIG_IDF_TARGET_ESP32S2
i2c_dev->ctrl.i2c_reset = 1; i2c_dev->ctrl.i2c_reset = 1;