[Bug 2038512] Re: [Mediatek] mt8195-demo: please help to include these MediaTek drivers in initrd.img in CD/DVD release image

[Benjamin Drung]

linux-modules-extra-6.5.0-10-generic ships four System Power Management
Interface (SPMI) modules on arm64:

drivers/spmi/hisi-spmi-controller.ko.zst
drivers/spmi/spmi-mtk-pmif.ko.zst
drivers/spmi/spmi-pmic-arb.ko.zst
drivers/spmi/spmi.ko.zst

See https://packages.ubuntu.com/mantic-updates/arm64/linux-modules-
extra-6.5.0-10-generic/filelist

Including those should not consume too much space.

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Title:
  [Mediatek] mt8195-demo: please help to include these MediaTek drivers
  in initrd.img in CD/DVD release image

Status in initramfs-tools package in Ubuntu:
  New

Bug description:
  [Impact]
  Peripheral probe failure for MediaTek boards 'mt8195-demo' and 'genio-1200-evk'.

  [Ubuntu Version]
  Jammy

  [initramfs-tools]
  0.140ubuntu13.4

  [Kernel version]
  5.15 -> 6.2
  (Generate initrd.img-6.2.0 on 5.15 kernel.)

  [Fix]
  I've used 'dracut' to examing the driver dependencies for boards 'mt8195-demo' and 'genio-1200-evk'.
  It is able to buot into console and use USB port3.
  Hope these drivers could help to run installer with USB disk in next daily build.

  Note: It won't work with 'update-initramfs -u -k 6.2.0-34-generic' if
  just simply add driver lists in '/etc/modules',
  '/etc/modprobe.d/mediatek.conf' or '/etc/modules-
  load.d/mediatek.conf'. I fixed this issue with 'dracut' and it seems
  this tool will include more common framework drivers into initrd.img.

  [MediaTek relate drivers]
  file: mediatek-drivers-for-mt8195-demo-bringup.txt
  (Not listed in probing sequence)

  i2c-mt65xx
  spi-mt65xx
  reset-ti-syscon
  mt6397
  rtc-mt6397
  mtk-pmic-wrap
  mt6315-regulator
  spmi-mtk-pmif
  mtk_scp_ipi
  mediatek-drm
  mtk-vcodec-dec
  mtk-vcodec-enc
  mtk_jpeg
  mtk-vcodec-common
  mtk-jpeg-enc-hw
  mtk-vpu
  mtk-jpeg-dec-hw
  mtk-cmdq-helper
  mtk-cmdq-helper
  mtk-cmdq-mailbox
  mtk-mdp3
  phy-mtk-mipi-dsi-drv
  btmtk
  leds-mt6360
  tcpci_mt6360
  mt6360_charger
  mt6360-regulator
  mt6360-core
  mt6359-regulator
  mt6360-adc
  snd-soc-mt8195-afe
  snd-soc-mtk-common
  snd-soc-dmic
  dwmac-mediatek
  stmmac-platform
  stmmac
  mtk-rng
  mtk_scp
  mtk_rpmsg
  pwm-mediatek
  pwm-mtk-disp
  nvmem_mtk-efuse
  mtk-sd
  cqhci
  phy-mtk-tphy
  mtu3
  xhci-mtk-hcd
  phy-mtk-pcie
  pcie-mediatek-gen3

  [lsmod log]
  file: lsmod-i1200-demo-kernel-6.2-dracut-initrd.txt

  [Other info]
  effected kernel (6.2-latest)
  ubuntu kernel for lunar, and Mantic.

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