Commit 82e4eb4e authored by Wang Dongsheng's avatar Wang Dongsheng Committed by Rafael J. Wysocki
Browse files

ACPI / tables: add DSDT AmlCode new declaration name support 



A new naming rule was added in ACPICA version 20180427 changing
the DSDT AML code name from "AmlCode" to "dsdt_aml_code".

That change was made by commit 83b2fa94 "ACPICA: iASL: Enhance
the -tc option (create AML hex file in C)".

Tested:
ACPICA release version 20180427+.
ARM64: QCOM QDF2400
GCC: 4.8.5 20150623

Signed-off-by: default avatarWang Dongsheng <dongsheng.wang@hxt-semitech.com>
[ rjw: Changelog ]
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent b413b1ab

drivers/acpi/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -336,7 +336,7 @@ config ACPI_CUSTOM_DSDT_FILE 
	  See Documentation/acpi/dsdt-override.txt



	  Enter the full path name to the file which includes the AmlCode

	  declaration.

	  or dsdt_aml_code declaration.



	  If unsure, don't enter a file name.

drivers/acpi/tables.c

+8 −2
Original line number Diff line number Diff line
@@ -712,6 +712,9 @@ acpi_os_physical_table_override(struct acpi_table_header *existing_table, 
					  table_length);

}



static void *amlcode __attribute__ ((weakref("AmlCode")));

static void *dsdt_amlcode __attribute__ ((weakref("dsdt_aml_code")));



acpi_status

acpi_os_table_override(struct acpi_table_header *existing_table,

		       struct acpi_table_header **new_table)
@@ -722,8 +725,11 @@ acpi_os_table_override(struct acpi_table_header *existing_table, 
	*new_table = NULL;



#ifdef CONFIG_ACPI_CUSTOM_DSDT

	if (strncmp(existing_table->signature, "DSDT", 4) == 0)

		*new_table = (struct acpi_table_header *)AmlCode;

	if (!strncmp(existing_table->signature, "DSDT", 4)) {

		*new_table = (struct acpi_table_header *)&amlcode;

		if (!(*new_table))

			*new_table = (struct acpi_table_header *)&dsdt_amlcode;

	}

#endif

	if (*new_table != NULL)

		acpi_table_taint(existing_table);

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