Comment 0 for bug 2064179

Xilinx vendor tree patches need to be forward ported from their 6.6 branch to 6.8 for Noble.

https://github.com/Xilinx/linux-xlnx/tree/xlnx_rebase_v6.6

We cherry-picked every commit from
a3ea85714695 "xilinx: Add a github template telling people to not use pull requests there" ^ .. 24eec56fe5bd "arm64: zynqmp: Remove arm,cortex-a53-edac node"

Upstream work was done on net: axienet that Xilinx has reverted on 6.6 in order to apply their own changes. There were additional patches that were added between 6.6 and 6.8 that we also reverted:

67f10a9bef6c Revert "net: axienet: make use of axistream-connected attribute optional"
947a44219b1e Revert "net: axienet: Clean up DMA start/stop and error handling"
2fafbc9b412e Revert "net: axienet: implement NAPI and GRO receive"
e5a7818b8d04 Revert "net: axienet: Use NAPI for TX completion path"
de765a372712 Revert "net: axienet: Switch to 64-bit RX/TX statistics"
34311bc5920f Revert "net: ethernet: xilinx: Convert to platform remove callback returning void"
1f35754c5be3 Revert "net: axienet: Preparatory changes for dmaengine support"
1e3ba4732475 Revert "net: axienet: Introduce dmaengine support"
6e93b87de0ce Revert "net: axienet: Fix check for partial TX checksum"

Upstream also added erase die capability to mtd: spi-nor which had major conflicts with stacked and parallel memory support added by Xilinx. We reverted the following patches in mtd: spi-nor:

ac2881fb1d4d Revert "mtd: spi-nor: add erase die (chip) capability"
f044dd43a1b4 Revert "mtd: spi-nor: spansion: enable die erase for multi die flashes"
c072086fdce3 Revert "mtd: spi-nor: micron-st: enable die erase for multi die flashes"
6be57acc37df Revert "mtd: spi-nor: remove NO_CHIP_ERASE flag"
6bbd61fc0eef Revert "mtd: spi-nor: micron-st: Add support for mt25qu01g"

A few patches were skipped because we were just unsure how to apply them. We should go back and revisit these:

usb: gadget: uvc_video: unlock before submitting a request to ep
usb: gadget: webcam: Add support for Full HD and 4K UHD Raw Video
v4l: xilinx: xcsi2rxss: Fix warnings for NULL_RETURNS

In total of the 860 patches we tried to apply 121 were skipped because they had been upstreamed between v6.6 and v6.8.