Draft: testing/samsung-v1awifi: add mainline package

Thanks to @grimler for helping me with this port.

---

Device boots and USB Networking works because the tablet is detected by the PC.

However, nothing else works: SSH gives connection reset (probably due to the cable not being genuine from manufacturer), no working display, no WiFi, etc.

In addition, the device is not booting with the linux-postmarketos-exynos5 kernel, as nothing is detected on the computer.

The mainline package has the same configuration as the linux-postmarketos-exynos5 kernel, but it only contains the patches required for Samsung Exynos 5420 tablets.

device/testing/device-samsung-v1awifi/APKBUILD

 # Reference: <https://postmarketos.org/devicepkg>
+# Maintainer: Antoni Aloy <aaloytorrens@gmail.com>
+# Co-Maintainer: Henrik Grimler <henrik@grimler.se>
 pkgname=device-samsung-v1awifi
 pkgdesc="Samsung Galaxy Note Pro 12.2 WiFi"
-pkgver=0.1
-pkgrel=1
+pkgver=1
+pkgrel=0
 url="https://postmarketos.org"
 license="MIT"
 arch="armv7"
 options="!check !archcheck"
 makedepends="devicepkg-dev"
-depends="postmarketos-base linux-samsung-v1awifi mkbootimg mesa-dri-swrast msm-fb-refresher"
-subpackages="$pkgname-nonfree-firmware:nonfree_firmware"
+depends="postmarketos-base mkbootimg"
+subpackages="
+	$pkgname-kernel-downstream:kernel_downstream
+	$pkgname-kernel-mainline:kernel_mainline
+	$pkgname-nonfree-firmware:nonfree_firmware
+	"
 source="deviceinfo"
 
 build() {
@@ -18,10 +24,22 @@ build() {
 
 package() {
 	devicepkg_package $startdir $pkgname
+}
+
+kernel_downstream() {
+	pkgdesc="Display and wifi works (see device table for details)"
+	depends="linux-samsung-v1awifi mesa-dri-swrast msm-fb-refresher"
+	devicepkg_package $startdir $pkgname
 	# Disable v4l udev rules, because if enabled the device will fail to boot
 	# when VIDEO_EXYNOS_FIMC_IS is enabled.
-	mkdir -p "$pkgdir"/etc/udev/rules.d
-	ln -s /dev/null "$pkgdir"/etc/udev/rules.d/60-persistent-v4l.rules
+	mkdir -p "$subpkgdir"/etc/udev/rules.d
+	ln -s /dev/null "$subpkgdir"/etc/udev/rules.d/60-persistent-v4l.rules
+}
+
+kernel_mainline() {
+	pkgdesc="Mainline WIP (usb networking works but not much else)"
+	depends="linux-samsung-v1awifi-mainline"
+	devicepkg_subpackage_kernel $startdir $pkgname $subpkgname
 }
 
 nonfree_firmware() {
@@ -31,5 +49,5 @@ nonfree_firmware() {
 }
 
 sha512sums="
-ee0381d5c49e6207b27a2ef9d0444b417a1fb98f7745c2c10e4f2192496cd619656433653ee03bb7a43562e36a4370d98ecf402ad475b7ac3118082ccff5fa29  deviceinfo
+39c7bc071e7bcb8e37ffe7d285253bc1bfc15015eab4c05fd6b374c97599bee45a22124a3170fe5ec9badd535e221cb8c2ea81a922c729b6e3b13d0d6961ba2e  deviceinfo
 "