jammy/linux-raspi: 5.15.0-1002.2 -proposed tracker

We could enable more "uefi-ish" features on this kernel to keep it closer to generic configs, but they are of little to no value for most of our users. I.e. PLATFORM_KERYING, LOCK_DOWN_IN_SECURE_BOOT.

CONFIG_RESET_RASPBERRYPI is not set on raspi-nolpae flavour, and I don't know for sure why not. (edit: nolpae is for rpi23 only thus no need for rpi4-only driver)

Some raspi patchseries are reverted, maybe we should ask them to drop them.

Some raspi patches should be upstreamd - for example poweroff_halt & zswap patches are cute and generally useful everywhere.

Somehow src:linux-raspi .deb compression is xz instead of the expected zstd. Which is inherited from master kernel, will follow up on that.

somewhat expect virtio drivers to be promoted from modules-extra to modules. It would be nice, if one could boot stock rpi image in qemu locally (albeit not using regular boot methods). But i guess need to evaluate if carrying virtio drivers in our default initrd is worth it. Maybe not.

rpi-5.13 dropped rpi-fan module, yet we still carry it in impish.

Otherwise, packaging looks sane; rebase looks sane; diffs look sane.

$ ./copy-proposed-kernel --ppa2 jammy linux-raspi linux-meta-raspi
NOTE: directing copy using devel routes
Copying linux-raspi/5.15.0-1002.2:
     From: ~canonical-kernel-team/ubuntu/bootstrap jammy Release
     To: ubuntu jammy Proposed
     Binaries: True
NOTE: directing copy using devel routes
Copying linux-meta-raspi/5.15.0.1002.2:
     From: ~canonical-kernel-team/ubuntu/bootstrap jammy Release
     To: ubuntu jammy Proposed
     Binaries: True

IMPORTANT: Please verify the overrides are correct for this source package.
Failure to do so may result in uninstallability when it is ultimately copied to
-updates/-security. lp:ubuntu-qa-tools/security-tools/find-bin-overrides can
help with this.

This bug was fixed in the package linux-raspi - 5.15.0-1002.2

---------------
linux-raspi (5.15.0-1002.2) jammy; urgency=medium

  * jammy/linux-raspi: 5.15.0-1002.2 -proposed tracker (LP: #1958834)

  * Packaging resync (LP: #1786013)
    - [Packaging] update Ubuntu.md
    - debian/dkms-versions -- update from kernel-versions (main/master)

  * Kernel fails to boot in ScalingStack (LP: #1959102)
    - [Config] raspi: Set VIRTIO_PCI=m
    - [Config] raspi: Set ACPI=y

  * jammy/linux-raspi: Update to upstream raspberrypi rpi-5.15.y (2022-01-24)
    (LP: #1958854)
    - brcmfmac: firmware: Fix crash in brcm_alt_fw_path
    - ARM: dts: Remove VL805 USB node from CM4 dts
    - mfd: simple-mfd-i2c: Add configuration for RPi POE HAT
    - pwm: raspberrypi-poe: Add option of being created by MFD or FW
    - power: rpi-poe: Drop CURRENT_AVG as it is not hardware averaged
    - power: rpi-poe: Add option of being created by MFD or FW
    - defconfigs: Add MFD_RASPBERRYPI_POE_HAT to Pi defconfigs.
    - dtoverlays: Add option for PoE HAT to use Linux I2C instead of FW.
    - drivers: bcm2835_unicam: Disable trigger mode operation
    - arm: Remove spurious .fnend directive
    - drm/vc4: Fix deadlock on DSI device attach error
    - drm/vc4: dsi: Correct max divider to 255 (not 7)
    - defconfig: Add BACKLIGHT_PWM to bcm2709 and bcmrpi defconfigs
    - dtoverlays: Add pwm backlight option to vc4-kms-dpi-generic
    - dtoverlays: Correct [h|v]sync_invert config in vc4-kms-dpi-generic
    - ARM: dts: BCM2711 AON_INTR2 generates IRQ edges
    - update rpi-display-overlay.dts pins for 5.10+

  [ Ubuntu: 5.15.0-18.18 ]

  * jammy/linux: 5.15.0-18.18 -proposed tracker (LP: #1958638)
  * CVE-2021-4155
    - xfs: map unwritten blocks in XFS_IOC_{ALLOC, FREE}SP just like fallocate
  * CVE-2022-0185
    - SAUCE: vfs: test that one given mount param is not larger than PAGE_SIZE
  * [UBUNTU 20.04] KVM hardware diagnose data improvements for guest kernel -
    kernel part (LP: #1953334)
    - KVM: s390: add debug statement for diag 318 CPNC data
  * OOB write on BPF_RINGBUF (LP: #1956585)
    - SAUCE: bpf: prevent helper argument PTR_TO_ALLOC_MEM to have offset other
      than 0
  * Miscellaneous Ubuntu changes
    - [Config] re-enable shiftfs
    - [SAUCE] shiftfs: support kernel 5.15
    - [Config] update toolchain versions
  * Miscellaneous upstream changes
    - vfs: fs_context: fix up param length parsing in legacy_parse_param

linux-raspi (5.15.0-1001.1) jammy; urgency=medium

  * Missing overlays/README (LP: #1954757)
    - SAUCE: Install overlays/README

  * dtoverlay=uart4 breaks Raspberry Pi 4B boot (LP: #1875454)
    - SAUCE: arm: dts: Add 'brcm,bcm2835-pl011' compatible for uart2-5

  * jammy/linux-raspi: Update to upstream raspberrypi rpi-5.15.y (2022-01-14)
    (LP: #1958146)
    - clk: bcm-2835: Pick the closest clock rate
    - clk: bcm-2835: Remove rounding up the dividers
    - drm/vc4: hdmi: Set a default HSM rate
    - drm/vc4: hdmi: Move the HSM clock enable to runtime_pm
    - drm/vc4: hdmi: Make sure the controller is powered in detect
    - drm/vc4: hdmi: Make sure the controller is powered up during bind
    - drm/vc4: hdmi: Rework the ...

All tasks have been completed and the bug is being set to Fix Released