719cd2639c
This commit refactos set_actual_position to set_reference_position. stepper_set_reference_position is more apt in regards to what this func actually does Signed-off-by: Jilay Pandya <jilay.pandya@outlook.com>
198 lines
4.8 KiB
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198 lines
4.8 KiB
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.. _migration_4.1:
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Migration guide to Zephyr v4.1.0 (Working Draft)
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################################################
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This document describes the changes required when migrating your application from Zephyr v4.0.0 to
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Zephyr v4.1.0.
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Any other changes (not directly related to migrating applications) can be found in
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the :ref:`release notes<zephyr_4.1>`.
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.. contents::
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:local:
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:depth: 2
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Build System
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************
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Kernel
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******
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Boards
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******
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Modules
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*******
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Mbed TLS
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========
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* If a platform has a CSPRNG source available (i.e. :kconfig:option:`CONFIG_CSPRNG_ENABLED`
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is set), then the Kconfig option :kconfig:option:`CONFIG_MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG`
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is the default choice for random number source instead of
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:kconfig:option:`CONFIG_MBEDTLS_PSA_CRYPTO_LEGACY_RNG`. This helps in reducing
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ROM/RAM footprint of the Mbed TLS library.
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* The newly-added Kconfig option :kconfig:option:`CONFIG_MBEDTLS_PSA_KEY_SLOT_COUNT`
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allows to specify the number of key slots available in the PSA Crypto core.
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Previously this value was not explicitly set, so Mbed TLS's default value of
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32 was used. The new Kconfig option defaults to 16 instead in order to find
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a reasonable compromise between RAM consumption and most common use cases.
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It can be further trimmed down to reduce RAM consumption if the final
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application doesn't need that many key slots simultaneously.
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Trusted Firmware-M
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==================
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LVGL
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====
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* The config option :kconfig:option:`CONFIG_LV_Z_FLUSH_THREAD_PRIO` is now called
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:kconfig:option:`CONFIG_LV_Z_FLUSH_THREAD_PRIORITY` and its value is now interpreted as an
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absolute priority instead of a cooperative one.
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Device Drivers and Devicetree
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*****************************
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Controller Area Network (CAN)
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=============================
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Display
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=======
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* Displays using the MIPI DBI driver which set their MIPI DBI mode via the
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``mipi-mode`` property in devicetree should now use a string property of
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the same name, like so:
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.. code-block:: devicetree
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/* Legacy display definition */
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st7735r: st7735r@0 {
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...
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mipi-mode = <MIPI_DBI_MODE_SPI_4WIRE>;
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...
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};
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/* New display definition */
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st7735r: st7735r@0 {
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...
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mipi-mode = "MIPI_DBI_MODE_SPI_4WIRE";
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...
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};
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Enhanced Serial Peripheral Interface (eSPI)
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===========================================
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GNSS
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====
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Input
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=====
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Interrupt Controller
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====================
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LED Strip
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=========
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Pin Control
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===========
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* Renamed the ``compatible`` from ``nxp,kinetis-pinctrl`` to :dtcompatible:`nxp,port-pinctrl`.
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* Renamed the ``compatible`` from ``nxp,kinetis-pinmux`` to :dtcompatible:`nxp,port-pinmux`.
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Sensors
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=======
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Serial
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======
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Stepper
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=======
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* Renamed the ``compatible`` from ``zephyr,gpio-steppers`` to :dtcompatible:`zephyr,gpio-stepper`.
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* Renamed the ``stepper_set_actual_position`` function to :c:func:`stepper_set_reference_position`.
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Regulator
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=========
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Bluetooth
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*********
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Bluetooth HCI
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=============
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Bluetooth Mesh
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==============
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Bluetooth Audio
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===============
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* The following Kconfig options are not longer automatically enabled by the LE Audio Kconfig
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options and may need to be enabled manually (:github:`81328`):
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* :kconfig:option:`CONFIG_BT_GATT_CLIENT`
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* :kconfig:option:`CONFIG_BT_GATT_AUTO_DISCOVER_CCC`
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* :kconfig:option:`CONFIG_BT_GATT_AUTO_UPDATE_MTU`
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* :kconfig:option:`CONFIG_BT_EXT_ADV`
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* :kconfig:option:`CONFIG_BT_PER_ADV_SYNC`
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* :kconfig:option:`CONFIG_BT_ISO_BROADCASTER`
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* :kconfig:option:`CONFIG_BT_ISO_SYNC_RECEIVER`
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* :kconfig:option:`CONFIG_BT_PAC_SNK`
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* :kconfig:option:`CONFIG_BT_PAC_SRC`
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Bluetooth Classic
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=================
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Bluetooth Host
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==============
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Bluetooth Crypto
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================
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Networking
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**********
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* The Prometheus metric creation has changed as user does not need to have a separate
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struct :c:struct:`prometheus_metric` any more. This means that the Prometheus macros
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:c:macro:`PROMETHEUS_COUNTER_DEFINE`, :c:macro:`PROMETHEUS_GAUGE_DEFINE`,
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:c:macro:`PROMETHEUS_HISTOGRAM_DEFINE` and :c:macro:`PROMETHEUS_SUMMARY_DEFINE`
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prototypes have changed. (:github:`81712`)
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Other Subsystems
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****************
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Flash map
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=========
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hawkBit
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=======
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MCUmgr
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======
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Modem
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=====
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Architectures
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*************
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* Common
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* ``_current`` is deprecated, used :c:func:`arch_current_thread` instead.
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* native/POSIX
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* :kconfig:option:`CONFIG_NATIVE_APPLICATION` has been deprecated. Out-of-tree boards using this
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option should migrate to the native_simulator runner (:github:`81232`).
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For an example of how this was done with a board in-tree check :github:`61481`.
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* For the native_sim target :kconfig:option:`CONFIG_NATIVE_SIM_NATIVE_POSIX_COMPAT` has been
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switched to ``n`` by default, and this option has been deprecated. Ensure your code does not
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use the :kconfig:option:`CONFIG_BOARD_NATIVE_POSIX` option anymore (:github:`81232`).
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