diff options
Diffstat (limited to '0009-x86-intel-Disable-HPET-on-Intel-Ice-Lake-platforms.patch')
| -rw-r--r-- | 0009-x86-intel-Disable-HPET-on-Intel-Ice-Lake-platforms.patch | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/0009-x86-intel-Disable-HPET-on-Intel-Ice-Lake-platforms.patch b/0009-x86-intel-Disable-HPET-on-Intel-Ice-Lake-platforms.patch new file mode 100644 index 0000000..6cb930a --- /dev/null +++ b/0009-x86-intel-Disable-HPET-on-Intel-Ice-Lake-platforms.patch @@ -0,0 +1,38 @@ +From de022ec5134c060ee735424ed3d0f9a663b73c53 Mon Sep 17 00:00:00 2001 +From: Kai-Heng Feng <kai.heng.feng@canonical.com> +Date: Fri, 29 Nov 2019 14:23:03 +0800 +Subject: 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> +--- + arch/x86/kernel/early-quirks.c | 2 ++ + 1 file changed, 2 insertions(+) + +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}, + {} +-- +cgit v1.2.1-1-g437b + |