Commit d0bb0b60 authored by Bibo Mao's avatar Bibo Mao Committed by Huacai Chen
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LoongArch: Enable ACPI BGRT handling 



Add ACPI BGRT support on LoongArch so it can display image provied by
acpi table at boot stage and switch to graphical UI smoothly.

Signed-off-by: default avatarBibo Mao <maobibo@loongson.cn>
Signed-off-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
parent e8dd556c

arch/loongarch/kernel/acpi.c

+4 −0
Original line number Diff line number Diff line
@@ -9,6 +9,7 @@ 


#include <linux/init.h>

#include <linux/acpi.h>

#include <linux/efi-bgrt.h>

#include <linux/irq.h>

#include <linux/irqdomain.h>

#include <linux/memblock.h>
@@ -212,6 +213,9 @@ void __init acpi_boot_table_init(void) 
	/* Do not enable ACPI SPCR console by default */

	acpi_parse_spcr(earlycon_acpi_spcr_enable, false);



	if (IS_ENABLED(CONFIG_ACPI_BGRT))

		acpi_table_parse(ACPI_SIG_BGRT, acpi_parse_bgrt);



	return;



fdt_earlycon:

drivers/acpi/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -451,7 +451,7 @@ config ACPI_HED 


config ACPI_BGRT

	bool "Boottime Graphics Resource Table support"

	depends on EFI && (X86 || ARM64)

	depends on EFI && (X86 || ARM64 || LOONGARCH)

	help

	  This driver adds support for exposing the ACPI Boottime Graphics

	  Resource Table, which allows the operating system to obtain