Update linux-samsung-p4wifi to kernel 4.16 (#1386)

* Specify a device tree binary file for p4wifi kernel
Previously the p4wifi kernel was using Android patches which append the
dtb to zImage in the kernel makefile.

Now follow mainline kernel convention of leaving the zImage and dtb
separate. Follow postmarketOS convention of specifying dtb file in
deviceinfo.
* Use linux-postmarketos-mainline APKBUILD build functions for p4wifi
* Update linux-samsung-p4wifi to kernel 4.16
- Use mainline broadcom bluetooth hci driver
- Use mainline atmel_mxt_ts driver
- Use mainline stmpe811 mfd driver and add stmpe811 ADC block

device/device-samsung-p4wifi/APKBUILD

@@ -2,7 +2,7 @@
 pkgname="device-samsung-p4wifi"
 pkgdesc="Galaxy Tab 10.1"
 pkgver=0.1
-pkgrel=4
+pkgrel=5
 url="https://postmarketos.org"
 license="MIT"
 arch="noarch"
@@ -46,7 +46,7 @@ nonfree_firmware() {
 	mkdir "$subpkgdir"
 }
 
-sha512sums="eada1b16fca29920a4e838165c38ba997b0c2faca83dabc9250d1fcb4ff70a4ad469c333abfe4bbb6a4cde6282e9fe4ab67323a2255d19f38be75d2abab333bd  deviceinfo
+sha512sums="0622c4326811e2240d1278b991476bffb3e53831ffc81e9d45c8ad73fd8a1a2aaafabaaad9aa9c4440834d3626fade2d674a59773a215c52319cd79c09f4a6c0  deviceinfo
 d8ce60ea7acaabf627ddca2f0887a4cda46f313b7aaf7934bef2fef8a6e0798ccefab849e4571e4e3fcd06ae34c1a6efe3b58b401e2e443416f6200e6d4ea769  modules-load.conf
 56b865bab0714aed53bd6535ebefd2f3629ec78786e8f87dcae4637cfacb5912d28dc39d1fe0287d34bb36b4a8371481f54647e1b25190afbcd23ed30fe7edac  modprobe.conf
 559d3f49a2a99445c644f53b1148fbac6963cc27fc77ba735da7b6c742b8d4faecf938943ce598ea71d590ce2297e2ec6f98aec54b2b339c861f92d0e0430434  90-device-samsung-p4wifi-audio.rules

device/device-samsung-p4wifi/deviceinfo

@@ -5,7 +5,7 @@ deviceinfo_format_version="0"
 deviceinfo_name="Galaxy Tab 10.1"
 deviceinfo_manufacturer="Samsung"
 deviceinfo_date=""
-deviceinfo_dtb=""
+deviceinfo_dtb="tegra20-samsung_p3"
 deviceinfo_modules_initfs=""
 deviceinfo_arch="armhf"
 

device/linux-samsung-p4wifi/APKBUILD

 # Kernel config based on: arch/arm/configs/tegra_android_defconfig
 
 pkgname="linux-samsung-p4wifi"
-pkgver=4.14.18
+pkgver=4.16.0
 pkgrel=0
 pkgdesc="Galaxy Tab 10.1 kernel"
 arch="armhf"
@@ -10,13 +10,13 @@ _flavor="samsung-p4wifi"
 url="https://kernel.org"
 license="GPL2"
 options="!strip !check !tracedeps"
-makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev xz"
+makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev xz flex bison openssl-dev"
 HOSTCC="${CC:-gcc}"
 HOSTCC="${HOSTCC#${CROSS_COMPILE}}"
 
 # Source
 _repository="linux"
-_rev="e64e8ca4def3037aab04f409fe1a0749f25a7953"
+_rev="503aa31b667507c7adf02c45e74d743f03119b1c"
 _config="config-${_flavor}.${arch}"
 source="
 	$pkgname-$_rev.tar.gz::https://github.com/decatf/${_repository}/archive/${_rev}.tar.gz
@@ -26,66 +26,78 @@ source="
 builddir="$srcdir/${_repository}-${_rev}"
 
 prepare() {
-	default_prepare
-
-	# gcc6 support
-	cp -v "$srcdir/compiler-gcc6.h" "$builddir/include/linux/"
-
-	# Remove -Werror from all makefiles
-	local i
-	local makefiles="$(find . -type f -name Makefile)
-		$(find . -type f -name Kbuild)"
-	for i in $makefiles; do
-		sed -i 's/-Werror-/-W/g' "$i"
-		sed -i 's/-Werror//g' "$i"
+	local _patch_failed=
+	cd "$builddir"
+	# first apply patches in specified order
+	for i in $source; do
+		case $i in
+		*.patch|*.patch::*)
+			_patch=${i%::*}
+			msg "Applying $_patch..."
+			if ! patch -s -p1 -N -i "$srcdir"/$_patch; then
+				echo $_patch >>failed
+				_patch_failed=1
+			fi
+			;;
+		esac
 	done
 
-	# Prepare kernel config ('yes ""' for kernels lacking olddefconfig)
-	cp "$srcdir"/$_config "$builddir"/.config
-	yes "" | make ARCH="$_carch" HOSTCC="$HOSTCC" oldconfig
+	if ! [ -z "$_patch_failed" ]; then
+		error "The following patches failed:"
+		cat failed
+		return 1
+	fi
+
+	mkdir -p "$srcdir"/build
+	cp -v "$srcdir"/$_config "$srcdir"/build/.config
+	make -C "$builddir" O="$srcdir"/build ARCH="$_carch" HOSTCC="$HOSTCC" \
+		olddefconfig
 }
 
+# this is so we can do: 'abuild menuconfig' to reconfigure kernel
 menuconfig() {
-	cd "$builddir"
+	cd "$srcdir"/build
 	make ARCH="$_carch" menuconfig
 	cp .config "$startdir"/$_config
 }
 
 build() {
+	cd "$srcdir"/build
 	unset LDFLAGS
 	make ARCH="$_carch" CC="${CC:-gcc}" \
-		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-${_flavor}" \
+		CFLAGS_MODULE=-fno-pic
 }
 
 package() {
-	# kernel.release
-	install -D "$builddir/include/config/kernel.release" \
-		"$pkgdir/usr/share/kernel/$_flavor/kernel.release"
+	cd "$srcdir/build/arch/${_carch}/boot"
 
-	# zImage (find the right one)
-	cd "$builddir/arch/$_carch/boot"
-	_target="$pkgdir/boot/vmlinuz-$_flavor"
-	for _zimg in zImage-dtb Image.gz-dtb *zImage Image; do
-		[ -e "$_zimg" ] || continue
-		msg "zImage found: $_zimg"
-		install -Dm644 "$_zimg" "$_target"
-		break
-	done
-	if ! [ -e "$_target" ]; then
-		error "Could not find zImage in $PWD!"
-		return 1
+	if [ "$CARCH" == "aarch64" ]; then
+		install -Dm644 "$srcdir/build/arch/${_carch}/boot/Image" \
+			"$pkgdir/boot/vmlinuz-$_flavor"
+	else
+		install -Dm644 "$srcdir/build/arch/${_carch}/boot/"*zImage \
+			"$pkgdir/boot/vmlinuz-$_flavor"
 	fi
 
-	# Modules
-	cd "$builddir"
-	unset LDFLAGS
-	make ARCH="$_carch" CC="${CC:-gcc}" \
-		CONFIG_NO_ERROR_ON_MISMATCH=y \
-		KBUILD_BUILD_VERSION="$((pkgrel + 1))-postmarketOS" \
-		INSTALL_MOD_PATH="$pkgdir" INSTALL_MOD_STRIP=1 \
-		modules_install
+	install -D "$srcdir/build/include/config/kernel.release" \
+		"$pkgdir/usr/share/kernel/$_flavor/kernel.release"
+
+	cd "$srcdir"/build
+
+	local _install
+	case "$CARCH" in
+	aarch64*|arm*)	_install="modules_install dtbs_install" ;;
+	*)		_install="modules_install" ;;
+	esac
+
+	make -j1 $_install \
+		ARCH="$_carch" \
+		INSTALL_MOD_PATH="$pkgdir" \
+		INSTALL_DTBS_PATH="$pkgdir/usr/share/dtb"
 }
 
-sha512sums="34a259ad33c11b116be940f4ae30dfa2445b3ebc2855422cda9df515c0262da8be74fa0f4ea71321c70c229a0240ae0d76fcb025c9d448326569d87e0bfa13b0  linux-samsung-p4wifi-e64e8ca4def3037aab04f409fe1a0749f25a7953.tar.gz
-b9070eb4a1ff2e456df8f38822f27c8e15daca212f3e7a7ea3f33ebf6fc5ebbb7b5607567bf3180c8b077b8ba6b6c17410a0c9871052c7d8c2d666ad1b55280e  config-samsung-p4wifi.armhf
+
+sha512sums="50f462c42a8cade2c83445f730db4ed1eb229139fd38a7c19bd69fc0e3aecf8849e5ce94f2ae7c24e8da0e72b339d521f3fb4b505c9b84472eb10e3b96921c37  linux-samsung-p4wifi-503aa31b667507c7adf02c45e74d743f03119b1c.tar.gz
+2c0cbdea23cb50d8c7ceb06b0bfd5241516ac5fa9bd7a8c8cf05619abad38dcb2849692f89951645398f782696d125f3c31e01e2cdc3095e4cc1656e05d6a4e9  config-samsung-p4wifi.armhf
 d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h"