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Message-ID: <4947938D.3010004@tut.fi>
Date: Tue, 16 Dec 2008 13:39:57 +0200
From: Janne Kulmala <janne.t.kulmala@....fi>
To: x86@...nel.org, linux-kernel@...r.kernel.org
Subject: x86: Fix HPET for Fujitsu u9200
HPET timer is listed in the ACPI table, but needs a quirk entry in order to
work. Unfortunately, the quirk code runs after first HPET hpet_enable() which
has already determined that the timer doesn't work (reads 0xFFFFFFFF). This
patch allows hpet_enable() to be called again after running the quirk code.
Signed-off-by: Janne Kulmala <janne.t.kulmala@....fi>
--- linux-2.6.28/arch/x86/kernel/quirks.c~ 2008-12-16 12:58:48.000000000 +0200
+++ linux-2.6.28/arch/x86/kernel/quirks.c 2008-12-16 12:59:14.000000000 +0200
@@ -168,6 +168,8 @@
ich_force_enable_hpet);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1,
ich_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_4,
+ ich_force_enable_hpet);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7,
ich_force_enable_hpet);
--- linux-2.6.28/arch/x86/kernel/hpet.c~ 2008-12-16 13:08:06.000000000 +0200
+++ linux-2.6.28/arch/x86/kernel/hpet.c 2008-12-16 13:10:29.000000000 +0200
@@ -811,7 +811,7 @@
out_nohpet:
hpet_clear_mapping();
- boot_hpet_disable = 1;
+ hpet_address = 0;
return 0;
}
--
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