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

[Dimitri John Ledkov]

ubuntu kernel team does not handle which drivers do or do not get
included in the initrd.

Since this is stuff that affects generic, these should be added by
default for modules=most mode by initramfs-tools.

please contact ubuntu foundations team about this.

** Package changed: linux (Ubuntu) => initramfs-tools (Ubuntu)

** Changed in: initramfs-tools (Ubuntu)
       Status: Incomplete => New

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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'.

  [Kernel version]
  6.2

  [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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