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2026-01-09dm: core: Default to using DEVRES outside of xPLTom Rini
The devm alloc functions that we have may follow the Linux kernel model where allocations are (almost always) automatically free()'d. However, quite often we don't enable, in full U-Boot, the tracking and free()'ing functionality. This in turn leads to memory leaks because the driver author expects that since the functions have the same name as in the Linux Kernel they have the same behavior. In turn we then get functionally correct commits such as commit 00e1fed93c8c ("firmware: ti_sci: Fix memory leaks in devm_ti_sci_get_of_resource") that manually add these calls. Rather than manually tracking allocations and implementing free()s, rework things so that we follow expectations by enabling the DEVRES functionality (outside of xPL phases). This turns DEVRES from a prompted symbol to a symbol that must be select'd, and we now remove our non-managed alloc/free functions from outside of xPL builds. Reviewed-by: Michael Trimarchi <[email protected]> Signed-off-by: Tom Rini <[email protected]>
2024-06-07dm: use newly added linux/compat alloc functionsMaxim Moskalets
Signed-off-by: Maxim Moskalets <[email protected]>
2022-04-18dm: core: Allow devres to be disabled in SPLSimon Glass
At present if devres is enabled in U-Boot proper it is enabled in SPL. We don't normally want it there, so disable it. Signed-off-by: Simon Glass <[email protected]> Tested-by: Angus Ainslie <[email protected]>
2022-01-15doc: add include/dm/devres.h to the HTML documentationPatrick Delaunay
Correct Sphinx style comments in include/dm/devres.h and add the driver model device resource API, devres_*(), to the HTML documentation. Signed-off-by: Patrick Delaunay <[email protected]> Reviewed-by-by: Heinrich Schuchardt <[email protected]>
2020-02-05dm: core: Require users of devres to include the headerSimon Glass
At present devres.h is included in all files that include dm.h but few make use of it. Also this pulls in linux/compat which adds several more headers. Drop the automatic inclusion and require files to include devres themselves. This provides a good indication of which files use devres. Signed-off-by: Simon Glass <[email protected]> Reviewed-by: Anatolij Gustschin <[email protected]>
2020-01-07dm: devres: Add testsSimon Glass
The devres functionality has very few users in U-Boot, but it still should have tests. Add a few basic tests of the main functions. Signed-off-by: Simon Glass <[email protected]>
2020-01-07dm: devres: Create a new devres header fileSimon Glass
At present these functions are lumped in with the core device functions. They have their own #ifdef to control their availability, so it seems better to split them out. Move them into their own header file. Signed-off-by: Simon Glass <[email protected]>