# Maintainer: Caleb Connolly <caleb@connolly.tech>
# Co-Maintainer: Joel Selvaraj <joelselvaraj.oss@gmail.com>
# Stable Linux kernel with patches for SDM845 devices
# Kernel config based on: arch/arm64/configs/defconfig and sdm845.config

_flavor="postmarketos-qcom-sdm845"
pkgname=linux-$_flavor
pkgver=6.9.0
pkgrel=0
pkgdesc="Mainline Kernel fork for SDM845 devices"
arch="aarch64"
_carch="arm64"
url="https://gitlab.com/sdm845-mainline/linux"
license="GPL-2.0-only"
options="!check !tracedeps
	pmb:cross-native
	pmb:kconfigcheck-community"
makedepends="bash bison findutils flex installkernel openssl-dev perl zstd"

_config="config-$_flavor.$arch"
_tag="sdm845-6.9.0"

# Source
source="
	linux-$_tag.tar.gz::https://gitlab.com/sdm845-mainline/linux/-/archive/$_tag/linux-$_tag.tar.gz
	$_config
	0001-arm64-dts-qcom-sdm845-xiaomi-polaris-Enable-ath10k-h.patch
	0002-drm-panel-Enable-prepare_prev_first-flag-for-NT35596.patch
"
builddir="$srcdir/linux-$_tag"

prepare() {
	default_prepare
	cp "$srcdir/config-$_flavor.$arch" .config
}

build() {
	unset LDFLAGS
	make ARCH="$_carch" CC="${CC:-gcc}" \
		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-$_flavor"
}

package() {
	if [ -e "$builddir/arch/$_carch/boot/vmlinuz.efi" ]; then
		# ZBOOT EFI decompressor for EFI booting
		install -Dm644 "$builddir/arch/$_carch/boot/vmlinuz.efi" \
			"$pkgdir/boot/linux.efi"

		# Old GZIP'd kernel image for boot.img compatibility
		install -Dm644 "$builddir/arch/$_carch/boot/vmlinuz" \
			"$pkgdir/boot/vmlinuz"
	else
		echo "WARNING: CONFIG_ZBOOT not enabled!"
		install -Dm644 "$builddir/arch/$_carch/boot/Image.gz" \
			"$pkgdir/boot/vmlinuz"
	fi

	make modules_install dtbs_install \
		ARCH="$_carch" \
		INSTALL_PATH="$pkgdir"/boot/ \
		INSTALL_MOD_PATH="$pkgdir" \
		INSTALL_MOD_STRIP=1 \
		INSTALL_DTBS_PATH="$pkgdir"/boot/dtbs-tmp

	mkdir -p "$pkgdir"/boot/dtbs/qcom
	cp -r "$pkgdir"/boot/dtbs-tmp/qcom/sdm8* "$pkgdir"/boot/dtbs/qcom
	rm -rf "$pkgdir"/boot/dtbs-tmp

	rm -f "$pkgdir"/lib/modules/*/build "$pkgdir"/lib/modules/*/source

	install -D "$builddir"/include/config/kernel.release \
		"$pkgdir"/usr/share/kernel/$_flavor/kernel.release
}

sha512sums="
42176b7b292a67ec85abe2faefd3e4c571425a35bcc7e63b219a9e06f73e7ed3f21fb5ea6e66072d96d31125dbd35b32ca82ebce2423e8268aa82ad56f230733  linux-sdm845-6.9.0.tar.gz
012db792018c7a98c530db1a3edf8a737a9350be7e0db4fc8d2099df94add3277736193d7f0f3a571228f98025c46c770afb4ca20dfe9ce106bd4d109679dbd0  config-postmarketos-qcom-sdm845.aarch64
e0ae8b9da09cd2552244cfbcd6a63272c766d082306573a679497ab0bd30a44dfa0023503a7628b7ea87238a62da13704de5e2a57952310c7866b770e5c474ad  0001-arm64-dts-qcom-sdm845-xiaomi-polaris-Enable-ath10k-h.patch
d7c857500348a1420ccd1a255c667704e54ee88f5c563bcb92885aaa5a9b5dc5a87d12ab782822de523d01c63b277ff60b57cc5307a0663bf42ad7b69da3d1c5  0002-drm-panel-Enable-prepare_prev_first-flag-for-NT35596.patch
"