add lvds1024*800

hc

2024-01-31 f70575805708cabdedea7498aaa3f710fde4d920

 kernel/drivers/acpi/acpica/tbxfload.c
..
..
@@ -3,7 +3,7 @@
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  *
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  * Module Name: tbxfload - Table load/unload external interfaces
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  *
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- * Copyright (C) 2000 - 2018, Intel Corp.
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+ * Copyright (C) 2000 - 2020, Intel Corp.
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  *
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  *****************************************************************************/
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9
 
..
..
@@ -69,24 +69,18 @@
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 				"While loading namespace from ACPI tables"));
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 	}
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-	if (acpi_gbl_execute_tables_as_methods
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-	    || !acpi_gbl_group_module_level_code) {
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-		/*
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-		 * If the module-level code support is enabled, initialize the objects
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-		 * in the namespace that remain uninitialized. This runs the executable
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-		 * AML that may be part of the declaration of these name objects:
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-		 *     operation_regions, buffer_fields, Buffers, and Packages.
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-		 *
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-		 * Note: The module-level code is optional at this time, but will
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-		 * become the default in the future.
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-		 */
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-		status = acpi_ns_initialize_objects();
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-		if (ACPI_FAILURE(status)) {
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-			return_ACPI_STATUS(status);
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-		}
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+	/*
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+	 * Initialize the objects in the namespace that remain uninitialized.
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+	 * This runs the executable AML that may be part of the declaration of
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+	 * these name objects:
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+	 *     operation_regions, buffer_fields, Buffers, and Packages.
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+	 *
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+	 */
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+	status = acpi_ns_initialize_objects();
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+	if (ACPI_SUCCESS(status)) {
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+		acpi_gbl_namespace_initialized = TRUE;
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 	}
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-	acpi_gbl_namespace_initialized = TRUE;
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 	return_ACPI_STATUS(status);
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 }
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..
..
@@ -124,7 +118,7 @@
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 	table = &acpi_gbl_root_table_list.tables[acpi_gbl_dsdt_index];
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 	if (!acpi_gbl_root_table_list.current_table_count ||
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-	    !ACPI_COMPARE_NAME(table->signature.ascii, ACPI_SIG_DSDT) ||
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+	    !ACPI_COMPARE_NAMESEG(table->signature.ascii, ACPI_SIG_DSDT) ||
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 	    ACPI_FAILURE(acpi_tb_validate_table(table))) {
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 		status = AE_NO_ACPI_TABLES;
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 		goto unlock_and_exit;
..
..
@@ -176,11 +170,12 @@
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 		table = &acpi_gbl_root_table_list.tables[i];
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 		if (!table->address ||
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-		    (!ACPI_COMPARE_NAME(table->signature.ascii, ACPI_SIG_SSDT)
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-		     && !ACPI_COMPARE_NAME(table->signature.ascii,
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-					   ACPI_SIG_PSDT)
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-		     && !ACPI_COMPARE_NAME(table->signature.ascii,
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-					   ACPI_SIG_OSDT))
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+		    (!ACPI_COMPARE_NAMESEG
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+		     (table->signature.ascii, ACPI_SIG_SSDT)
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+		     && !ACPI_COMPARE_NAMESEG(table->signature.ascii,
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+					      ACPI_SIG_PSDT)
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+		     && !ACPI_COMPARE_NAMESEG(table->signature.ascii,
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+					      ACPI_SIG_OSDT))
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 		    || ACPI_FAILURE(acpi_tb_validate_table(table))) {
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 			continue;
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 		}
..
..
@@ -273,6 +268,8 @@
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  *
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  * PARAMETERS:  table               - Pointer to a buffer containing the ACPI
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  *                                    table to be loaded.
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+ *              table_idx           - Pointer to a u32 for storing the table
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+ *                                    index, might be NULL
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  *
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  * RETURN:      Status
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  *
..
..
@@ -283,7 +280,7 @@
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  *              to ensure that the table is not deleted or unmapped.
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  *
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  ******************************************************************************/
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-acpi_status acpi_load_table(struct acpi_table_header *table)
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+acpi_status acpi_load_table(struct acpi_table_header *table, u32 *table_idx)
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 {
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 	acpi_status status;
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 	u32 table_index;
..
..
@@ -302,6 +299,17 @@
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 	status = acpi_tb_install_and_load_table(ACPI_PTR_TO_PHYSADDR(table),
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 						ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL,
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 						FALSE, &table_index);
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+	if (table_idx) {
303
+		*table_idx = table_index;
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+	}
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+
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+	if (ACPI_SUCCESS(status)) {
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+
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+		/* Complete the initialization/resolution of new objects */
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+
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+		acpi_ns_initialize_objects();
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+	}
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+
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 	return_ACPI_STATUS(status);
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 }
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315
 
..
..
@@ -370,7 +378,7 @@
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 		 * only these types can contain AML and thus are the only types
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 		 * that can create namespace objects.
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 		 */
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-		if (ACPI_COMPARE_NAME
381
+		if (ACPI_COMPARE_NAMESEG
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 		    (acpi_gbl_root_table_list.tables[i].signature.ascii,
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 		     ACPI_SIG_DSDT)) {
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 			status = AE_TYPE;
..
..
@@ -388,3 +396,35 @@
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 }
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397
 
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 ACPI_EXPORT_SYMBOL(acpi_unload_parent_table)
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+/*******************************************************************************
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+ *
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+ * FUNCTION:    acpi_unload_table
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+ *
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+ * PARAMETERS:  table_index         - Index as returned by acpi_load_table
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+ *
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+ * RETURN:      Status
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+ *
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+ * DESCRIPTION: Via the table_index representing an SSDT or OEMx table, unloads
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+ *              the table and deletes all namespace objects associated with
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+ *              that table. Unloading of the DSDT is not allowed.
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+ *              Note: Mainly intended to support hotplug removal of SSDTs.
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+ *
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+ ******************************************************************************/
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+acpi_status acpi_unload_table(u32 table_index)
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+{
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+	acpi_status status;
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+
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+	ACPI_FUNCTION_TRACE(acpi_unload_table);
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+
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+	if (table_index == 1) {
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+
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+		/* table_index==1 means DSDT is the owner. DSDT cannot be unloaded */
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+
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+		return_ACPI_STATUS(AE_TYPE);
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+	}
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+
426
+	status = acpi_tb_unload_table(table_index);
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+	return_ACPI_STATUS(status);
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+}
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+
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+ACPI_EXPORT_SYMBOL(acpi_unload_table)