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The VCHIQ driver now loads the audio, camera, codec, and vc-sm drivers as platform drivers. However they were not being given the correct DMA configuration. Call of_dma_configure with the parent (VCHIQ) parameters to be inherited by the child. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> staging: vchiq: Use the old dma controller for OF config on platform devices vchiq on Pi4 is no longer under the soc node, therefore it doesn't get the dma-ranges for the VPU. Switch to using the configuration of the old dma controller as that will set the dma-ranges correctly. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> staging: vchiq_arm: Give vchiq children DT nodes vchiq kernel clients are now instantiated as platform drivers rather than using DT, but the children of the vchiq interface may still benefit from access to DT properties. Give them the option of a a sub-node of the vchiq parent for configuration and to allow them to be disabled. Signed-off-by: Phil Elwell <phil@raspberrypi.com> staging: vchiq_arm: Add 36-bit address support Conditional on a new compatible string, change the pagelist encoding such that the top 24 bits are the pfn, leaving 8 bits for run length (-1), giving a 36-bit address range. Manage the split between addresses for the VPU and addresses for the 40-bit DMA controller with a dedicated DMA device pointer that on non- BCM2711 platforms is the same as the main VCHIQ device. This allows the VCHIQ node to stay in the usual place in the DT. Signed-off-by: Phil Elwell <phil@raspberrypi.com> staging: vchiq_arm: children inherit DMA config Although it is no longer necessary for vchiq's children to have a different DMA configuration to the parent, they do still need to explicitly to have their DMA configuration set - to be that of the parent. Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Linux kernel
There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first.
In order to build the documentation, use make htmldocs or
make pdfdocs. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.
Build status for rpi-6.1.y:
Build status for rpi-6.6.y:
Build status for rpi-6.12.y:
