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zephyr/drivers/i2c/Kconfig.mcux

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i2c_mcux_flexcomm: add transaction timeout option With the device_sync_sem semaphore, there is the possibility of the code not returning to give it back (mcux_flexcomm_master_transfer_callback is never called), causing it to get stuck in k_sem_take(&data->device_sync_sem, K_FOREVER) in subsequent calls. The i2c driver recovers by other means (enabling FSL_FEATURE_I2C_TIMEOUT_RECOVERY) but the callback might not return. Adding a timeout option allows for this occurrence to be avoided. Signed-off-by: Guilherme Casa Nova <guilherme.casa_nova@dell.com>
2024-01-31 06:24:21 +08:00
# I2C configuration options
# Copyright (c) 2024, NXP
# SPDX-License-Identifier: Apache-2.0
drivers: i2c: fix leaking Kconfig option for mcux driver Fix leaking I2C_NXP_TRANSFER_TIMEOUT option. It was showing up for all I2C drivers. Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
2024-04-20 13:24:20 +08:00
menuconfig I2C_MCUX_FLEXCOMM
bool "MCUX FLEXCOMM I2C driver"
default y
depends on DT_HAS_NXP_LPC_I2C_ENABLED
select PINCTRL
help
Enable the mcux flexcomm i2c driver.
i2c_mcux_flexcomm: add transaction timeout option With the device_sync_sem semaphore, there is the possibility of the code not returning to give it back (mcux_flexcomm_master_transfer_callback is never called), causing it to get stuck in k_sem_take(&data->device_sync_sem, K_FOREVER) in subsequent calls. The i2c driver recovers by other means (enabling FSL_FEATURE_I2C_TIMEOUT_RECOVERY) but the callback might not return. Adding a timeout option allows for this occurrence to be avoided. Signed-off-by: Guilherme Casa Nova <guilherme.casa_nova@dell.com>
2024-01-31 06:24:21 +08:00
config I2C_NXP_TRANSFER_TIMEOUT
int "Transfer timeout [ms]"
default 0
drivers: i2c: fix leaking Kconfig option for mcux driver Fix leaking I2C_NXP_TRANSFER_TIMEOUT option. It was showing up for all I2C drivers. Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
2024-04-20 13:24:20 +08:00
depends on I2C_MCUX_FLEXCOMM
i2c_mcux_flexcomm: add transaction timeout option With the device_sync_sem semaphore, there is the possibility of the code not returning to give it back (mcux_flexcomm_master_transfer_callback is never called), causing it to get stuck in k_sem_take(&data->device_sync_sem, K_FOREVER) in subsequent calls. The i2c driver recovers by other means (enabling FSL_FEATURE_I2C_TIMEOUT_RECOVERY) but the callback might not return. Adding a timeout option allows for this occurrence to be avoided. Signed-off-by: Guilherme Casa Nova <guilherme.casa_nova@dell.com>
2024-01-31 06:24:21 +08:00
help
Timeout in milliseconds used for each I2C transfer.
0 means that the driver should use the K_FOREVER value,
i.e. it should wait as long as necessary.
In conjunction with this, FSL_FEATURE_I2C_TIMEOUT_RECOVERY
must be enabled to allow the driver to fully recover.