From 516d5329a486e4adb6c1be7d98203a3667d1dc10 Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@hey.com>
Date: Wed, 18 Mar 2026 19:19:22 +0100
Subject: [PATCH] Build custom kernel with panther lake patches

---
 build/packages/edge.packages                  |   3 +
 .../edge/linux-mainline-panther-lake/PKGBUILD | 209 ++++++++++++++++++
 .../ptl-audio.config                          |  20 ++
 3 files changed, 232 insertions(+)
 create mode 100644 pkgbuilds/edge/linux-mainline-panther-lake/PKGBUILD
 create mode 100644 pkgbuilds/edge/linux-mainline-panther-lake/ptl-audio.config

diff --git a/build/packages/edge.packages b/build/packages/edge.packages
index 34a9f47..6aba5d1 100644
--- a/build/packages/edge.packages
+++ b/build/packages/edge.packages
@@ -34,6 +34,9 @@ yaru-icon-theme
 yay
 yt6801-dkms
 
+# Kernel
+linux-mainline-panther-lake
+
 # Drivers
 nvidia-580xx-utils
 lib32-nvidia-580xx-utils
diff --git a/pkgbuilds/edge/linux-mainline-panther-lake/PKGBUILD b/pkgbuilds/edge/linux-mainline-panther-lake/PKGBUILD
new file mode 100644
index 0000000..f22906d
--- /dev/null
+++ b/pkgbuilds/edge/linux-mainline-panther-lake/PKGBUILD
@@ -0,0 +1,209 @@
+# Maintainer: Omarchy <packages@omarchy.org>
+# Based on the AUR linux-mainline package by:
+# Maintainer: Mikael Eriksson <mikael_eriksson@miffe.org>
+
+pkgbase=linux-mainline-panther-lake
+pkgver=7.0rc4
+pkgrel=2
+pkgdesc="Linux Mainline (Panther Lake audio support)"
+arch=(x86_64)
+url="https://kernel.org/"
+license=(GPL-2.0-only)
+makedepends=(
+  bc
+  cpio
+  gettext
+  git
+  libelf
+  pahole
+  perl
+  python
+  rust
+  rust-bindgen
+  rust-src
+  tar
+  xz
+)
+options=(
+  !debug
+  !strip
+)
+_tag=v7.0-rc4
+_srcname=linux-mainline
+source=(
+  "$_srcname::git+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git#tag=$_tag"
+  "config::https://aur.archlinux.org/cgit/aur.git/plain/config?h=linux-mainline"
+  "ptl-audio.config"
+)
+sha256sums=(
+  'SKIP'
+  'SKIP'
+  'SKIP'
+)
+validpgpkeys=(
+  ABAF11C65A2970B130ABE3C479BE3E4300411886  # Linus Torvalds
+  647F28654894E3BD457199BE38DBBDC86092693E  # Greg Kroah-Hartman
+)
+
+export KBUILD_BUILD_HOST=archlinux
+export KBUILD_BUILD_USER=$pkgbase
+export KBUILD_BUILD_TIMESTAMP="$(date -Ru${SOURCE_DATE_EPOCH:+d @$SOURCE_DATE_EPOCH})"
+
+prepare() {
+  cd $_srcname
+
+  echo "Setting version..."
+  echo "-$pkgrel" > localversion.10-pkgrel
+  echo "${pkgbase#linux}" > localversion.20-pkgname
+
+  local src
+  for src in "${source[@]}"; do
+    src="${src%%::*}"
+    src="${src##*/}"
+    src="${src%.zst}"
+    [[ $src = *.patch ]] || continue
+    echo "Applying patch $src..."
+    patch -Np1 < "../$src"
+  done
+
+  echo "Setting config..."
+  cp ../config .config
+
+  # Merge Panther Lake audio config fragment
+  echo "Merging Panther Lake audio config..."
+  scripts/kconfig/merge_config.sh -m .config ../ptl-audio.config
+
+  make olddefconfig
+  diff -u ../config .config || :
+
+  make -s kernelrelease > version
+  echo "Prepared $pkgbase version $(<version)"
+}
+
+build() {
+  cd $_srcname
+  make all
+  make -C tools/bpf/bpftool vmlinux.h feature-clang-bpf-co-re=1
+}
+
+_package() {
+  pkgdesc="The $pkgdesc kernel and modules"
+  depends=(
+    coreutils
+    initramfs
+    kmod
+  )
+  optdepends=(
+    'linux-firmware: firmware images needed for some devices'
+    'scx-scheds: to use sched-ext schedulers'
+    'wireless-regdb: to set the correct wireless channels of your country'
+  )
+  provides=(
+    KSMBD-MODULE
+    NTSYNC-MODULE
+    VIRTUALBOX-GUEST-MODULES
+    WIREGUARD-MODULE
+  )
+
+  cd $_srcname
+  local modulesdir="$pkgdir/usr/lib/modules/$(<version)"
+
+  echo "Installing boot image..."
+  install -Dm644 "$(make -s image_name)" "$modulesdir/vmlinuz"
+
+  echo "$pkgbase" | install -Dm644 /dev/stdin "$modulesdir/pkgbase"
+
+  echo "Installing modules..."
+  ZSTD_CLEVEL=19 make INSTALL_MOD_PATH="$pkgdir/usr" INSTALL_MOD_STRIP=1 \
+    DEPMOD=/doesnt/exist modules_install
+
+  rm "$modulesdir"/build
+}
+
+_package-headers() {
+  pkgdesc="Headers and scripts for building modules for the $pkgdesc kernel"
+  depends=(pahole)
+
+  cd $_srcname
+  local builddir="$pkgdir/usr/lib/modules/$(<version)/build"
+
+  echo "Installing build files..."
+  install -Dt "$builddir" -m644 .config Makefile Module.symvers System.map \
+    localversion.* version vmlinux tools/bpf/bpftool/vmlinux.h
+  install -Dt "$builddir/kernel" -m644 kernel/Makefile
+  install -Dt "$builddir/arch/x86" -m644 arch/x86/Makefile
+  cp -t "$builddir" -a scripts
+  ln -srt "$builddir" "$builddir/scripts/gdb/vmlinux-gdb.py"
+
+  install -Dt "$builddir/tools/objtool" tools/objtool/objtool
+  install -Dt "$builddir/tools/bpf/resolve_btfids" tools/bpf/resolve_btfids/resolve_btfids
+
+  echo "Installing headers..."
+  cp -t "$builddir" -a include
+  cp -t "$builddir/arch/x86" -a arch/x86/include
+  install -Dt "$builddir/arch/x86/kernel" -m644 arch/x86/kernel/asm-offsets.s
+
+  install -Dt "$builddir/drivers/md" -m644 drivers/md/*.h
+  install -Dt "$builddir/net/mac80211" -m644 net/mac80211/*.h
+  install -Dt "$builddir/drivers/media/i2c" -m644 drivers/media/i2c/msp3400-driver.h
+  install -Dt "$builddir/drivers/media/usb/dvb-usb" -m644 drivers/media/usb/dvb-usb/*.h
+  install -Dt "$builddir/drivers/media/dvb-frontends" -m644 drivers/media/dvb-frontends/*.h
+  install -Dt "$builddir/drivers/media/tuners" -m644 drivers/media/tuners/*.h
+  install -Dt "$builddir/drivers/iio/common/hid-sensors" -m644 drivers/iio/common/hid-sensors/*.h
+
+  echo "Installing KConfig files..."
+  find . -name 'Kconfig*' -exec install -Dm644 {} "$builddir/{}" \;
+
+  echo "Installing Rust files..."
+  install -Dt "$builddir/rust" -m644 rust/*.rmeta
+  install -Dt "$builddir/rust" rust/*.so
+
+  echo "Installing unstripped VDSO..."
+  make INSTALL_MOD_PATH="$pkgdir/usr" vdso_install link=
+
+  echo "Removing unneeded architectures..."
+  local arch
+  for arch in "$builddir"/arch/*/; do
+    [[ $arch = */x86/ ]] && continue
+    echo "Removing $(basename "$arch")"
+    rm -r "$arch"
+  done
+
+  echo "Removing documentation..."
+  rm -r "$builddir/Documentation"
+
+  echo "Removing broken symlinks..."
+  find -L "$builddir" -type l -printf 'Removing %P\n' -delete
+
+  echo "Removing loose objects..."
+  find "$builddir" -type f -name '*.o' -printf 'Removing %P\n' -delete
+
+  echo "Stripping build tools..."
+  local file
+  while read -rd '' file; do
+    case "$(file -Sib "$file")" in
+      application/x-sharedlib\;*)      strip -v $STRIP_SHARED "$file" ;;
+      application/x-archive\;*)        strip -v $STRIP_STATIC "$file" ;;
+      application/x-executable\;*)     strip -v $STRIP_BINARIES "$file" ;;
+      application/x-pie-executable\;*) strip -v $STRIP_SHARED "$file" ;;
+    esac
+  done < <(find "$builddir" -type f -perm -u+x ! -name vmlinux -print0)
+
+  echo "Stripping vmlinux..."
+  strip -v $STRIP_STATIC "$builddir/vmlinux"
+
+  echo "Adding symlink..."
+  mkdir -p "$pkgdir/usr/src"
+  ln -sr "$builddir" "$pkgdir/usr/src/$pkgbase"
+}
+
+pkgname=(
+  "$pkgbase"
+  "$pkgbase-headers"
+)
+for _p in "${pkgname[@]}"; do
+  eval "package_$_p() {
+    $(declare -f "_package${_p#$pkgbase}")
+    _package${_p#$pkgbase}
+  }"
+done
diff --git a/pkgbuilds/edge/linux-mainline-panther-lake/ptl-audio.config b/pkgbuilds/edge/linux-mainline-panther-lake/ptl-audio.config
new file mode 100644
index 0000000..941b722
--- /dev/null
+++ b/pkgbuilds/edge/linux-mainline-panther-lake/ptl-audio.config
@@ -0,0 +1,20 @@
+# Panther Lake audio support for Dell XPS 2026 and similar systems
+# These options prevent kernel panics from SOF/HDA driver conflicts
+# and enable correct audio on Intel Panther Lake hardware.
+
+# Required modules
+CONFIG_SND_SOC_ACPI_AMD_SDCA_QUIRKS=m
+CONFIG_SND_SOC_INTEL_SOF_TI_COMMON=m
+CONFIG_SND_SOC_SDCA_FDL=y
+CONFIG_SND_SOC_SDCA_CLASS=m
+CONFIG_SND_SOC_SDCA_CLASS_FUNCTION=m
+CONFIG_SND_SOC_SOF_INTEL_NVL=m
+CONFIG_SND_SOC_SOF_NOVALAKE=m
+CONFIG_SND_SOC_NAU8325=m
+
+# Explicitly disabled (must not be set)
+# CONFIG_SND_HDA_SCODEC_CS35L56_CAL_DEBUGFS is not set
+# CONFIG_SND_SOC_CS35L56_CAL_DEBUGFS is not set
+# CONFIG_SND_SOC_CS35L56_CAL_SET_CTRL is not set
+# CONFIG_SND_SOC_CS530X_SPI is not set
+# CONFIG_SND_SOC_RT5575 is not set