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