From fbcbc044127cec00b25e9c90848e98384071e57b Mon Sep 17 00:00:00 2001
From: Bastian Wanner <bastian.wanner@inovex.de>
Date: Fri, 5 Jan 2024 14:23:03 +0100
Subject: [PATCH] psplash: Add udev rule notify systemd of available fb

When using psplash in combination with systemd the splash screen is not
shown. The dependency to sys-devices-platform-gpu-graphics-fb0.device
will terminate psplash-start.service because systemd is not aware of the
framebuffer device node.
See https://lists.yoctoproject.org/g/yocto/topic/91286438#57156

Adding a udev rule to notify systemd
---
 recipes-core/psplash/files/fb.rules     | 1 +
 recipes-core/psplash/psplash_%.bbappend | 7 ++++++-
 2 files changed, 7 insertions(+), 1 deletion(-)
 create mode 100644 recipes-core/psplash/files/fb.rules

diff --git a/recipes-core/psplash/files/fb.rules b/recipes-core/psplash/files/fb.rules
new file mode 100644
index 000000000..c336bc36d
--- /dev/null
+++ b/recipes-core/psplash/files/fb.rules
@@ -0,0 +1 @@
+SUBSYSTEM=="graphics", KERNEL=="fb0", TAG+="systemd"
diff --git a/recipes-core/psplash/psplash_%.bbappend b/recipes-core/psplash/psplash_%.bbappend
index 57cade8ff..389bb275f 100644
--- a/recipes-core/psplash/psplash_%.bbappend
+++ b/recipes-core/psplash/psplash_%.bbappend
@@ -1,11 +1,16 @@
 FILESEXTRAPATHS:prepend := "${THISDIR}/files:"
 SPLASH_IMAGES:rpi = "file://psplash-raspberrypi-img.h;outsuffix=raspberrypi"
 
-SRC_URI:append:rpi = " file://framebuf.conf"
+SRC_URI:append:rpi = " \
+    file://framebuf.conf \
+    file://fb.rules \
+    "
 
 do_install:append:rpi() {
     if [ "${@bb.utils.filter('DISTRO_FEATURES', 'systemd', d)}" ]; then
         install -Dm 0644 ${WORKDIR}/framebuf.conf ${D}${systemd_system_unitdir}/psplash-start.service.d/framebuf.conf
+        install -d ${D}${sysconfdir}/udev/rules.d
+        install -m 0644 ${WORKDIR}/fb.rules ${D}${sysconfdir}/udev/rules.d/
     fi
 }