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| author |   Kai-Heng Feng <kai.heng.feng@canonical.com> | 2019-11-29 14:23:03 +0800 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2019-11-29 12:17:58 +0100 |
| commit | e0748539e3d594dd26f0d27a270f14720b22a406 (patch) | |
| tree | 4b5261b2732f8ad776793e52421375a324fc84cd /arch/x86/kernel | |
| parent | x86/intel: Disable HPET on Intel Coffee Lake H platforms (diff) | |
| download | linux-dev-e0748539e3d594dd26f0d27a270f14720b22a406.tar.xz linux-dev-e0748539e3d594dd26f0d27a270f14720b22a406.zip | |
x86/intel: Disable HPET on Intel Ice Lake platforms
Like CFL and CFL-H, ICL SoC has skewed HPET timer once it hits PC10.
So let's disable HPET on ICL.
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bp@alien8.de
Cc: feng.tang@intel.com
Cc: harry.pan@intel.com
Cc: hpa@zytor.com
Link: https://lkml.kernel.org/r/20191129062303.18982-2-kai.heng.feng@canonical.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/early-quirks.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c index 606711f5ebf8..2f9ec14be3b1 100644 --- a/arch/x86/kernel/early-quirks.c +++ b/arch/x86/kernel/early-quirks.c @@ -714,6 +714,8 @@ static struct chipset early_qrk[] __initdata = { PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet}, { PCI_VENDOR_ID_INTEL, 0x3ec4, PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet}, + { PCI_VENDOR_ID_INTEL, 0x8a12, + PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet}, { PCI_VENDOR_ID_BROADCOM, 0x4331, PCI_CLASS_NETWORK_OTHER, PCI_ANY_ID, 0, apple_airport_reset}, {} |