main/mkinitfs: backport rpirtc support

Backport rpirtc fix

main/mkinitfs/APKBUILD

@@ -2,7 +2,7 @@
 pkgname=mkinitfs
 pkgver=3.4.3
 _ver=${pkgver%_git*}
-pkgrel=0
+pkgrel=1
 pkgdesc="Tool to generate initramfs images for Alpine"
 url="https://git.alpinelinux.org/cgit/mkinitfs"
 arch="all"
@@ -16,6 +16,7 @@ subpackages="$pkgname-doc"
 install="$pkgname.pre-upgrade $pkgname.post-install $pkgname.post-upgrade"
 triggers="$pkgname.trigger=/usr/share/kernel/*"
 source="https://dev.alpinelinux.org/archive/$pkgname/$pkgname-$_ver.tar.xz
+	add-feature-rpirtc.patch
 	"
 
 build() {
@@ -28,4 +29,5 @@ package() {
 	make install DESTDIR="$pkgdir"
 }
 
-sha512sums="d335a6f58ca38a3cc6dcc560baaabd3ea9522ce25de008eb637f0761db7f783c3b03767ba046c3d34550d1d0741bcc54ad09903b41e79fe408264eadbbc0a457  mkinitfs-3.4.3.tar.xz"
+sha512sums="d335a6f58ca38a3cc6dcc560baaabd3ea9522ce25de008eb637f0761db7f783c3b03767ba046c3d34550d1d0741bcc54ad09903b41e79fe408264eadbbc0a457  mkinitfs-3.4.3.tar.xz
+964481c742c1c7ac6b77c075f2c75f8d8f6277e8b781ea88e0fa6cb652fe892de8530cf120801ad73794bed19556af2c56ec2c1d1a7fcf6a802df93341d650bc  add-feature-rpirtc.patch"

main/mkinitfs/add-feature-rpirtc.patch

@@ -0,0 +1,44 @@
+From f87f786cb9f066288d6482aafb32b7e88dc5f4b8 Mon Sep 17 00:00:00 2001
+From: Henrik Riomar <henrik.riomar@gmail.com>
+Date: Tue, 15 Oct 2019 12:59:43 +0200
+Subject: [PATCH] add feature rpirtc
+
+Add new feature rpi rtc allowing a hw rtc to be used.
+
+The init script in Alpine Linux since v3.9 looks for /dev/rtc, if
+not found it will switch to swclock.
+
+To make this check work on a Rasberry PI with a mounted rtc and
+the following in usercfg.txt
+ dtoverlay=i2c-rtc,ds3231
+we must have rtc drivers available already initramfs.
+
+(cherry picked from commit 89f9c4fb0dd3a69dea4cb7ecead55692c9732e06)
+---
+ Makefile                  | 1 +
+ features.d/rpirtc.modules | 1 +
+ 2 files changed, 2 insertions(+)
+ create mode 100644 features.d/rpirtc.modules
+
+diff --git a/Makefile b/Makefile
+index 3c076a1..b4524a5 100644
+--- a/Makefile
++++ b/Makefile
+@@ -43,6 +43,7 @@ CONF_FILES	:= mkinitfs.conf \
+ 		features.d/raid.files \
+ 		features.d/raid.modules \
+ 		features.d/reiserfs.modules \
++		features.d/rpirtc.modules \
+ 		features.d/scsi.modules \
+ 		features.d/squashfs.modules \
+ 		features.d/ubifs.modules \
+diff --git a/features.d/rpirtc.modules b/features.d/rpirtc.modules
+new file mode 100644
+index 0000000..91c8ad3
+--- /dev/null
++++ b/features.d/rpirtc.modules
+@@ -0,0 +1 @@
++kernel/drivers/rtc/rtc-ds1307.ko
+-- 
+2.24.1
+