# SPDX-License-Identifier: GPL-2.0+ # # Loongson-2 series SoC drivers # config LOONGSON2_GUTS tristate "Loongson-2 SoC Global UtiliTieS (GUTS) register block" depends on LOONGARCH || COMPILE_TEST select SOC_BUS help The global utilities block controls PCIE device enabling, alternate function selection for multiplexed signals, consistency of HDA, USB and PCIE, configuration of memory controller, rtc controller, lio controller, and clock control. This patch adds a driver to manage and access global utilities block for LoongArch architecture Loongson-2 SoCs. Initially only reading SVR and registering soc device are supported. Other guts accesses, such as reading firmware configuration by default, should eventually be added into this driver as well. config LOONGSON2_PM bool "Loongson-2 SoC Power Management Controller Driver" depends on LOONGARCH && OF help The Loongson-2's power management controller was ACPI, supports ACPI S2Idle (Suspend To Idle), ACPI S3 (Suspend To RAM), ACPI S4 (Suspend To Disk), ACPI S5 (Soft Shutdown) and supports multiple wake-up methods (USB, GMAC, PWRBTN, etc.). This driver was to add power management controller support that base on dts for Loongson-2 series SoCs.