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zephyr/drivers/i2c/Kconfig.dw

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drivers/i2c: Cleanup Kconfig Move driver specific to dedicated file when relevant (i.e.: more than 1-2 options), use if/endif also. Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2018-02-28 11:27:46 +01:00
# Copyright (c) 2018 Intel Corporation
# SPDX-License-Identifier: Apache-2.0
menuconfig I2C_DW
bool "Design Ware I2C support"
drivers: i2c: Update drivers to use devicetree Kconfig symbol Update i2c drivers to use DT_HAS_<compat>_ENABLED Kconfig symbol to expose the driver and enable it by default based on devicetree. We remove 'depend on' Kconfig for symbols that would be implied by the devicetree node existing. Signed-off-by: Kumar Gala <galak@kernel.org>
2022-07-20 15:44:42 -05:00
default y
depends on DT_HAS_SNPS_DESIGNWARE_I2C_ENABLED
drivers: i2c: dw: Enable PINCTRL conjuction with dt prop 'pinctrl-0' If there is a pinctrl-0 property, PINCTRL will be enabled in conjunction with it. Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
2024-12-25 02:22:04 +09:00
select PINCTRL if $(dt_compat_any_has_prop,$(DT_COMPAT_SNPS_DESIGNWARE_I2C),pinctrl-0)
drivers/i2c: Cleanup Kconfig Move driver specific to dedicated file when relevant (i.e.: more than 1-2 options), use if/endif also. Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2018-02-28 11:27:46 +01:00
help
kconfig: Hide the DesignWare I2C driver on unsupported platforms When users are configuring nRF applications they are given the option to enable the DesignWare I2C driver. But they should not be given this option because nRF SoCs do not have DesignWare I2C HW. This commit hides the driver by default by introducing the config option HAS_I2C_DW. Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2018-10-19 14:05:26 +02:00
Enable the Design Ware I2C driver
drivers/i2c: Cleanup Kconfig Move driver specific to dedicated file when relevant (i.e.: more than 1-2 options), use if/endif also. Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2018-02-28 11:27:46 +01:00
config I2C_DW_CLOCK_SPEED
int "Set the clock speed for I2C"
drivers: i2c_dw: Remove CMake-based templating With some additional macro-magic we can remove the CMake-based header file template feature, and instead take advantage of the usual DT_INST_FOREACH_STATUS_OKAY() macro. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2021-04-21 00:04:35 +03:00
depends on I2C_DW
drivers: i2c: rts5912 i2c dirver base on DesignWare I2C driver to implement RTS5912 I2C driver. 1. support customize bus recovery function. 2. fix isr timing issue by enable tx empty control. 3. support stuck at low handle by enable bus clear feature. 4. support custom stuck at low timeout set from dts 5. disable block mode in rts5912 i2c. 6. support I2C_ALLOW_NO_STOP_TRANSACTIONS Signed-off-by: Titan Chen <titan.chen@realtek.com>
2025-04-24 11:58:21 +08:00
default 110 if I2C_RTS5912
drivers/i2c: Cleanup Kconfig Move driver specific to dedicated file when relevant (i.e.: more than 1-2 options), use if/endif also. Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2018-02-28 11:27:46 +01:00
default 32
drivers: i2c: i2c_dw: Added intel lpss dma support for I2C Enabled intel LPSS DMA interface using dw common to support usage of internal DMA in LPSS I2C to transfer and receive data. Signed-off-by: Bindu S <bindu.s@intel.com>
2023-08-08 10:45:49 +05:30
config I2C_DW_LPSS_DMA
bool "Use I2C integrated DMA for asynchronous transfer"
drivers: i2c: rts5912 i2c dirver base on DesignWare I2C driver to implement RTS5912 I2C driver. 1. support customize bus recovery function. 2. fix isr timing issue by enable tx empty control. 3. support stuck at low handle by enable bus clear feature. 4. support custom stuck at low timeout set from dts 5. disable block mode in rts5912 i2c. 6. support I2C_ALLOW_NO_STOP_TRANSACTIONS Signed-off-by: Titan Chen <titan.chen@realtek.com>
2025-04-24 11:58:21 +08:00
depends on (I2C_DW && !I2C_RTS5912)
drivers: i2c: i2c_dw: Added intel lpss dma support for I2C Enabled intel LPSS DMA interface using dw common to support usage of internal DMA in LPSS I2C to transfer and receive data. Signed-off-by: Bindu S <bindu.s@intel.com>
2023-08-08 10:45:49 +05:30
select DMA
select DMA_INTEL_LPSS
help
drivers: i2c: correct spelling Employ a code spell checking tool to scan and correct spelling errors in all files within the drivers/i2c directory. Signed-off-by: Pisit Sawangvonganan <pisit@ndrsolution.com>
2024-01-13 00:55:44 +07:00
This option enables I2C DMA feature to be used for asynchronous
data transfers. All Tx operations are done using dma channel 0 and
drivers: i2c: i2c_dw: Added intel lpss dma support for I2C Enabled intel LPSS DMA interface using dw common to support usage of internal DMA in LPSS I2C to transfer and receive data. Signed-off-by: Bindu S <bindu.s@intel.com>
2023-08-08 10:45:49 +05:30
all Rx operations are done using dma channel 1.
drivers: I2C_DW: Fix I2C scan example Solves two identical issues listed below: Issue 1: I2C scanner example for DesignWare hardware gets stuck indefenitely resulting in system hang up.This is because DW I2C driver does not handle 0 byte transfer correctly which is the case for I2C scan example. Fixed it by overwriting the msg length to 1 if it is 0 and the buffer is not NULL. Issue 2: Similarly, if the I2C pins are not pulled up (nothing connected to I2C pins), the DW hardware does not actually send the data (assuming contention on the bus) hence not releasing the semaphore resulting in calling thread waiting forever. Fixed it by adding a timeout to k_sem_take call and return error if cannot successfully acquire it. Tested scenarios where nothing was connected on the bus and saw the I2C scan example complete the whole scan command. Then connected two different sensors on the I2C bus and saw both the address on the console. Tested both the uses cases on Raspberry Pi Pico. Fixes #70332. Found that micropython tackles the same issue by implementing I2C scan commands with Soft I2C because the same reason mentioned in Issue 1. Signed-off-by: Dev Joshi <quic_devbhave@quicinc.com>
2024-06-30 22:27:19 -07:00
config I2C_DW_RW_TIMEOUT_MS
int "Set the Read/Write timeout in milliseconds"
depends on I2C_DW
default 100
drivers: i2c: rts5912 i2c dirver base on DesignWare I2C driver to implement RTS5912 I2C driver. 1. support customize bus recovery function. 2. fix isr timing issue by enable tx empty control. 3. support stuck at low handle by enable bus clear feature. 4. support custom stuck at low timeout set from dts 5. disable block mode in rts5912 i2c. 6. support I2C_ALLOW_NO_STOP_TRANSACTIONS Signed-off-by: Titan Chen <titan.chen@realtek.com>
2025-04-24 11:58:21 +08:00
config I2C_DW_EXTENDED_SUPPORT
bool "Extended DW features"
help
This option enables support for the SCL/SDA timeout registers and some
additional features of the DW I2C controller.
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