## SPDX-License-Identifier: GPL-2.0-only

config DRIVERS_INTEL_OC_MAILBOX
	bool
	help
	  Provides access to the Intel's OC Mailbox MSR (0x150).
	  Supports 4th-10th generation Intel Core CPUs (Haswell-Cometlake).

if DRIVERS_INTEL_OC_MAILBOX

config INTEL_OC_MAILBOX_ENABLE_UNDERVOLTING
	bool "Enable undervolting via OC mailbox"
	help
	  Program per-plane voltage offsets via OC Mailbox MSR.
	  When enabled, coreboot can apply per-domain undervolt settings at boot
	  (core/GT/cache/SA and I/O planes, depending on CPU generation). Settings
	  are exposed as runtime options and written using OC_MAILBOX commands.

config HAS_DIGITAL_IO_POWER_DOMAIN
	bool
	default n

endif
