x86/intel: Disable HPET on Intel Ice Lake platforms (e0748539) · Commits · 戴 / test

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:

arch/x86/kernel/early-quirks.c

+2 −0

Original line number	Original line	Diff line number	Diff line
	@@ -714,6 +714,8 @@ static struct chipset early_qrk[] __initdata = {
	PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},		PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
	{ PCI_VENDOR_ID_INTEL, 0x3ec4,		{ PCI_VENDOR_ID_INTEL, 0x3ec4,
	PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},		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_VENDOR_ID_BROADCOM, 0x4331,
	PCI_CLASS_NETWORK_OTHER, PCI_ANY_ID, 0, apple_airport_reset},		PCI_CLASS_NETWORK_OTHER, PCI_ANY_ID, 0, apple_airport_reset},
	{}		{}