samsung-chagallwifi: new device (MR 1174)

This gets the Samsung Galaxy Tab S 10.5 Wifi (samsung-chagallwifi) working at a very basic level.
Full instructions of how to flash the device etc are already on the wiki at
https://wiki.postmarketos.org/wiki/Samsung_Galaxy_Tab_S_10.5_WiFi_(chagallwifi)

device/testing/device-samsung-chagallwifi/APKBUILD

+# Contributor: David Davies-Jones <david@exultantmonkey.co.uk>
+# Maintainer: David Davies-Jones <david@exultantmonkey.co.uk>
+# Reference: <https://postmarketos.org/devicepkg>
+pkgname=device-samsung-chagallwifi
+pkgdesc="Samsung Galaxy Tab S 10.5"
+pkgver=0.1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="armv7"
+options="!check !archcheck"
+depends="postmarketos-base linux-samsung-chagallwifi mkbootimg mesa-dri-swrast"
+makedepends="devicepkg-dev"
+source="deviceinfo"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+}
+
+
+sha512sums="273994a361f1a65544c7aa4827beeace5fc90a39b7eaf951767b52826515488e8ebb455c5e2a79cb6de7ccffb6bff6183e34387a90f1a3835d453a7f15d38290  deviceinfo"

device/testing/device-samsung-chagallwifi/deviceinfo

+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="Samsung Galaxy Tab S 10.5 WiFi"
+deviceinfo_manufacturer="Samsung"
+deviceinfo_codename="samsung-chagallwifi"
+deviceinfo_year="2014"
+deviceinfo_dtb=""
+deviceinfo_modules_initfs=""
+deviceinfo_arch="armv7"
+
+# Device related
+deviceinfo_keyboard="false"
+deviceinfo_external_storage="true"
+deviceinfo_screen_width="2560"
+deviceinfo_screen_height="1600"
+
+# Bootloader related
+deviceinfo_flash_method="heimdall-bootimg"
+deviceinfo_kernel_cmdline=""
+deviceinfo_generate_bootimg="true"
+deviceinfo_bootimg_qcdt="false"
+deviceinfo_bootimg_dtb_second="false"
+deviceinfo_flash_offset_base="0x10000000"
+deviceinfo_flash_offset_kernel="0x00008000"
+deviceinfo_flash_offset_ramdisk="0x01000000"
+deviceinfo_flash_offset_second="0x00f00000"
+deviceinfo_flash_offset_tags="0x00000100"
+deviceinfo_flash_pagesize="2048"
+deviceinfo_flash_heimdall_partition_kernel="BOOT"
+deviceinfo_flash_heimdall_partition_system="SYSTEM"
+

device/testing/linux-samsung-chagallwifi/APKBUILD

+# Contributor: David Davies-Jones <david@exultantmonkey.co.uk>
+# Maintainer: David Davies-Jones <david@exultantmonkey.co.uk>
+# Reference: <https://postmarketos.org/vendorkernel>
+# Kernel config based on: arch/arm/configs/lineageos_chagallwifi_defconfig
+
+pkgname=linux-samsung-chagallwifi
+pkgver=3.4.39
+pkgrel=0
+pkgdesc="Samsung Galaxy Tab S 10.5 kernel fork"
+arch="armv7"
+_carch="arm"
+_flavor="samsung-chagallwifi"
+url="https://kernel.org"
+license="GPL-2.0-only"
+options="!strip !check !tracedeps"
+makedepends="bash bc bison devicepkg-dev flex openssl-dev perl xz"
+
+# Source
+_repository="android_kernel_samsung_exynos5420"
+_commit="61dd0870a1982be7567f9cb288f3f76f03f017f4"
+_config="config-$_flavor.$arch"
+source="
+	$pkgname-$_commit.tar.gz::https://github.com/LineageOS/$_repository/archive/$_commit.tar.gz
+	$_config
+	gcc7-give-up-on-ilog2-const-optimizations.patch
+	gcc8-fix-put-user.patch
+"
+builddir="$srcdir/$_repository-$_commit"
+_outdir="out"
+
+prepare() {
+	default_prepare
+	. downstreamkernel_prepare
+}
+
+build() {
+	unset LDFLAGS
+	make O="$_outdir" ARCH="$_carch" CC="${CC:-gcc}" \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
+}
+
+package() {
+	downstreamkernel_package "$builddir" "$pkgdir" "$_carch" "$_flavor" "$_outdir"
+}
+
+sha512sums="b10abf35473b5ac8109d35c86485c1a83e7874feb9fa15bd69f0d5a3f063ecaa94914cb86e6ed0cb3f8c8cb2d89f93ba51b651f095d364ddb00688a887532081  linux-samsung-chagallwifi-61dd0870a1982be7567f9cb288f3f76f03f017f4.tar.gz
+14ceb782138b8fb3fdd8e14d26773b0813a44925804a9e47f2d96f5058459a9bd1e91add25820e39f283e8dff0bbf30d185b06da466386c549c93e07b8ca420f  config-samsung-chagallwifi.armv7
+77eba606a71eafb36c32e9c5fe5e77f5e4746caac292440d9fb720763d766074a964db1c12bc76fe583c5d1a5c864219c59941f5e53adad182dbc70bf2bc14a7  gcc7-give-up-on-ilog2-const-optimizations.patch
+197d40a214ada87fcb2dfc0ae4911704b9a93354b75179cd6b4aadbb627a37ec262cf516921c84a8b1806809b70a7b440cdc8310a4a55fca5d2c0baa988e3967  gcc8-fix-put-user.patch"

device/testing/linux-samsung-chagallwifi/gcc7-give-up-on-ilog2-const-optimizations.patch

+../../.shared-patches/linux/gcc7-give-up-on-ilog2-const-optimizations.patch
\ No newline at end of file

device/testing/linux-samsung-chagallwifi/gcc8-fix-put-user.patch

+../../.shared-patches/linux/gcc8-fix-put-user.patch
\ No newline at end of file