LoongArch: Combine acpi_boot_table_init() and acpi_boot_init()

Combine acpi_boot_table_init() and acpi_boot_init() since they are very
simple, and we don't need to check the return value of acpi_boot_init().
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

arch/loongarch/kernel/acpi.c

@@ -56,23 +56,6 @@ void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size)
 		return ioremap_cache(phys, size);
 }
 
-void __init acpi_boot_table_init(void)
-{
-	/*
-	 * If acpi_disabled, bail out
-	 */
-	if (acpi_disabled)
-		return;
-
-	/*
-	 * Initialize the ACPI boot-time table parser.
-	 */
-	if (acpi_table_init()) {
-		disable_acpi();
-		return;
-	}
-}
-
 #ifdef CONFIG_SMP
 static int set_processor_mask(u32 id, u32 flags)
 {
@@ -156,13 +139,21 @@ static void __init acpi_process_madt(void)
 	loongson_sysconf.nr_cpus = num_processors;
 }
 
-int __init acpi_boot_init(void)
+void __init acpi_boot_table_init(void)
 {
 	/*
 	 * If acpi_disabled, bail out
 	 */
 	if (acpi_disabled)
-		return -1;
+		return;
+
+	/*
+	 * Initialize the ACPI boot-time table parser.
+	 */
+	if (acpi_table_init()) {
+		disable_acpi();
+		return;
+	}
 
 	loongson_sysconf.boot_cpu_id = read_csr_cpuid();
 
@@ -173,8 +164,6 @@ int __init acpi_boot_init(void)
 
 	/* Do not enable ACPI SPCR console by default */
 	acpi_parse_spcr(earlycon_acpi_spcr_enable, false);
-
-	return 0;
 }
 
 #ifdef CONFIG_ACPI_NUMA

arch/loongarch/kernel/setup.c

@@ -257,7 +257,6 @@ void __init platform_init(void)
 #ifdef CONFIG_ACPI
 	acpi_gbl_use_default_register_widths = false;
 	acpi_boot_table_init();
-	acpi_boot_init();
 #endif
 
 #ifdef CONFIG_NUMA