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Message-Id: <20210224125340.483162-2-sashal@kernel.org>
Date: Wed, 24 Feb 2021 07:53:02 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: Heiner Kallweit <hkallweit1@...il.com>,
Borislav Petkov <bp@...e.de>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH AUTOSEL 5.4 02/40] x86/reboot: Add Zotac ZBOX CI327 nano PCI reboot quirk
From: Heiner Kallweit <hkallweit1@...il.com>
[ Upstream commit 4b2d8ca9208be636b30e924b1cbcb267b0740c93 ]
On this system the M.2 PCIe WiFi card isn't detected after reboot, only
after cold boot. reboot=pci fixes this behavior. In [0] the same issue
is described, although on another system and with another Intel WiFi
card. In case it's relevant, both systems have Celeron CPUs.
Add a PCI reboot quirk on affected systems until a more generic fix is
available.
[0] https://bugzilla.kernel.org/show_bug.cgi?id=202399
[ bp: Massage commit message. ]
Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
Signed-off-by: Borislav Petkov <bp@...e.de>
Link: https://lkml.kernel.org/r/1524eafd-f89c-cfa4-ed70-0bde9e45eec9@gmail.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
arch/x86/kernel/reboot.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 762f5c1465a6f..a9d4d6fbc7824 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -477,6 +477,15 @@ static const struct dmi_system_id reboot_dmi_table[] __initconst = {
},
},
+ { /* PCIe Wifi card isn't detected after reboot otherwise */
+ .callback = set_pci_reboot,
+ .ident = "Zotac ZBOX CI327 nano",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "NA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "ZBOX-CI327NANO-GS-01"),
+ },
+ },
+
/* Sony */
{ /* Handle problems with rebooting on Sony VGN-Z540N */
.callback = set_bios_reboot,
--
2.27.0
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