From 03e2db8b65b2aca3c591680c3c3cfc47545ccea0 Mon Sep 17 00:00:00 2001
From: Janne Grunau <janne-fdr@jannau.net>
Date: Jul 22 2024 19:59:14 +0000
Subject: Install hwdb file to override auto suspend on GL9755 SD card reader


systemd v255 shipped a hwdb update enabling auto suspend (runtime PM)
for the SD card reader Apple uses in 14- and 16-inch Macbook Pros and
Mac Studios
(https://github.com/systemd/systemd/commit/2f72e94984fc2994ab2705e384f92e15cc026264).
This PCI ID is imported from ChromiumOS. The driver in upstream Linux
does not support runtime PM so this change is questionable to useless.
Unfortunately it creates a race between enabling auto suspend and probing
the sdhci_pci driver. If the default idle timeout (2000 ms) triggers
before the driver is bound the default PCI device runtime suspend
callback will be called. On Apple silicon devices the GL9755 card
reader is inaccessible after it is resumed for the driver's probe
function. Accessing the device's BAR results in a SError with
ESR = 0x92000018.
It's not entirely clear whether which is an issue with the device or
with Apple silicon's PCIe implementation or Linux driver.

---

diff --git a/65-autosuspend-override-asahi.hwdb b/65-autosuspend-override-asahi.hwdb
new file mode 100644
index 0000000..46b7dc4
--- /dev/null
+++ b/65-autosuspend-override-asahi.hwdb
@@ -0,0 +1,2 @@
+pci:v000017A0d00009755*
+ ID_AUTOSUSPEND=0
diff --git a/fedora-asahi-remix-scripts.spec b/fedora-asahi-remix-scripts.spec
index f40c8f7..4415439 100644
--- a/fedora-asahi-remix-scripts.spec
+++ b/fedora-asahi-remix-scripts.spec
@@ -1,5 +1,5 @@
 Name:           fedora-asahi-remix-scripts
-Version:        20240622
+Version:        20240722
 Release:        1%{?dist}
 Summary:        Fedora Asahi Remix utility scripts
 
@@ -12,6 +12,7 @@ BuildArch:      noarch
 BuildRequires:  systemd-rpm-macros
 Requires:       dnf
 Requires:       systemd
+Requires:       systemd-udev
 Requires:       btrfs-progs
 
 %description
@@ -28,6 +29,7 @@ install -Dpm0644 -t %{buildroot}%{_unitdir} asahi-extras-firstboot.service
 install -Dpm0644 -t %{buildroot}%{_unitdir} asahi-setup-swap-firstboot.service
 install -Dpm0644 -t %{buildroot}%{_unitdir} asahi-branding-fixup.service
 install -Dpm0644 -t %{buildroot}%{_unitdir} asahi-branding-fixup.timer
+install -Dpm0644 -t %{buildroot}%{_udevhwdbdir} 65-autosuspend-override-asahi.hwdb
 install -Dpm0755 -t %{buildroot}%{_libexecdir}/%{name} install-extras.sh
 install -Dpm0755 -t %{buildroot}%{_libexecdir}/%{name} setup-swap.sh
 install -Dpm0755 -t %{buildroot}%{_libexecdir}/%{name} fixup-branding-packages.sh
@@ -58,9 +60,13 @@ systemctl enable asahi-branding-fixup.timer
 %{_unitdir}/asahi-setup-swap-firstboot.service
 %{_unitdir}/asahi-branding-fixup.service
 %{_unitdir}/asahi-branding-fixup.timer
+%{_udevhwdbdir}/65-autosuspend-override-asahi.hwdb
 %{_libexecdir}/%{name}/
 
 %changelog
+* Mon Jul 22 2024 Janne Grunau <janne-fdr@jannau.net> - 20240722-1
+- Install hwdb file to override auto suspend on GL9755 SD card reader
+
 * Sat Jun 22 2024 Neal Gompa <ngompa@fedoraproject.org> - 20240622-1
 - Switch the branding fixup service to timer-based run