# Contributor: Nikita Utkin <shockck84@gmail.com>
# Maintainer: Nikita Utkin <shockck84@gmail.com>
# Reference: <https://postmarketos.org/vendorkernel>
# Kernel config based on: arch/arm64/configs/whyred-perf_defconfig

pkgname="linux-xiaomi-whyred"
pkgver=4.4.78
pkgrel=0
pkgdesc="Xiaomi Redmi Note 5 kernel fork"
arch="aarch64"
_carch="arm64"
_flavor="xiaomi-whyred"
url="https://kernel.org"
license="GPL-2.0-only"
options="!strip !check !tracedeps"
# Compiling with latest gcc causes kernel panic, so here we use gcc6
makedepends="bash bc bison devicepkg-dev flex openssl-dev perl gcc6"

if [ "${CC:0:5}" != "gcc6-" ]; then
	CC="gcc6-$CC"
	HOSTCC="gcc6-gcc"
	CROSS_COMPILE="gcc6-$CROSS_COMPILE"
fi

# Source
_repository="Xiaomi_Kernel_OpenSource"
_commit="efbbb9cce47475c49f28d227b2a52eca6f0d02a7"
_config="config-$_flavor.$arch"
source="
	$pkgname-$_commit.zip::https://github.com/MiCode/$_repository/archive/$_commit.zip
	$_config
	gcc8-fix-put-user.patch
	fix-includes.patch
	fix-trace-includes.patch
	fix-vl53l0-includes.patch
	03_fix_rndis_ipa_trace_header_not_found.patch
	fix-usb-redundant-module-funcs.patch
	export-usb-gadget-funcs.patch
	exclude-unrelated-device-trees.patch
"
# exclude-unrelated-device-trees.patch removes device trees for Wayne (Redmi 6X)
# and Tulip (Redmi Note 6 Pro), leaving only Whyred's.
# This patch is neccessary to point the kernel to the correct device tree,
# as it was using Wayne's device trees otherwise for some reason.
# TODO: Find better way to force to use the correct device tree.
builddir="$srcdir/$_repository-$_commit"

prepare() {
	default_prepare
	. downstreamkernel_prepare
}

build() {
	unset LDFLAGS
	make ARCH="$_carch" CC=$CC CROSS_COMPILE=$CROSS_COMPILE HOSTCC=$HOSTCC \
		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
}

package() {
	downstreamkernel_package "$builddir" "$pkgdir" "$_carch" "$_flavor"

	# Modules
	unset LDFLAGS
	make ARCH="$_carch" CC="${CC:-gcc}" \
		INSTALL_MOD_PATH="$pkgdir" INSTALL_MOD_STRIP=1 \
		KBUILD_BUILD_VERSION="$((pkgrel + 1))-postmarketOS" \
		modules_install
}

sha512sums="a4da46628917ed4b486a4c12ba8e75fde8db8a23f9311ef1a907f7a664d5c4f7266a9174b131a62cfd0c00f0498d05388fc9c20a68bf3ab4dd9565d3bd033393  linux-xiaomi-whyred-efbbb9cce47475c49f28d227b2a52eca6f0d02a7.zip
6fd145779ded26af00f5bff82072771a6e79ff6e1c81aa4896f053ed799297c3416a9a28438ef6f3f0ab40dc8d3947476a5bdccb33889b9d23861f6b7976d612  config-xiaomi-whyred.aarch64
197d40a214ada87fcb2dfc0ae4911704b9a93354b75179cd6b4aadbb627a37ec262cf516921c84a8b1806809b70a7b440cdc8310a4a55fca5d2c0baa988e3967  gcc8-fix-put-user.patch
2d72e13a68c67c6af07b0e7e709f3feb57187964adef79d3c1cc7d73f75f5acccfcaa0d733d8d8746deadc220cb71d0bbd67ed11861bf9ee8dd07005f5d643eb  fix-includes.patch
a7885d5ea79026f88723bab685b86f2e3d7d14dbc29c1220ec6fa007a6ed5f5c6a1773b0f57c9ec413bca069deff16ca8cb2126bf428aff2e0957a9c1a0339a8  fix-trace-includes.patch
f8ca292ebc8bffac59f31fca191f9a95cdbd405c0382299779a5dfcfadde5116dec3d868f9d5ea4e2b3965f6fb9822241121bc6121264af796c59bc2cd6da29e  fix-vl53l0-includes.patch
9c549714f03c7a7666e8aa7508a48cfdccab7cf3e97fb59c4df8fa97f75492365926f82c4a677c50780d68d4905504dcccbdd6de6344bd8d4b88b2331933ed46  03_fix_rndis_ipa_trace_header_not_found.patch
85086f455f7ba08db2421862151b838cfefbd5131990bfa391863e0296cbb716f500cece07ad71a229274ae097bcebc81a2c99521c1b4e7ebdd65fa925a9ddf8  fix-usb-redundant-module-funcs.patch
6bb86b54c7002e056a8eb21b159d4beb001ca6745645faf86d9208106390816aa07674dc6a11152a8b3fafae5ba93e0352de0813d1a9235b745150253be84e72  export-usb-gadget-funcs.patch
4eff7d21cb15f769ee9667eb0a7d42f3439e12fc76046b409baea232fbbf935a2e960ef782361d712008ada0d57cff7cf5e8cecf6484a3037e73647f5dc58a51  exclude-unrelated-device-trees.patch"