acpi: Add an __ACPI__ preprocessor symbol
The ASL compiler cannot handle C structures and the like so needs some
sort of header guard around these.
We already have an __ASSEMBLY__ #define but it seems best to create a new
one for ACPI since the rules may be different.
Add the check to a few files that ACPI always includes.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
diff --git a/include/dm/acpi.h b/include/dm/acpi.h
index ba0813f..4925791 100644
--- a/include/dm/acpi.h
+++ b/include/dm/acpi.h
@@ -22,6 +22,8 @@
/* Length of an ACPI name string including nul terminator */
#define ACPI_NAME_MAX (ACPI_NAME_LEN + 1)
+#if !defined(__ACPI__)
+
/**
* struct acpi_ops - ACPI operations supported by driver model
*/
@@ -70,4 +72,6 @@
*/
int acpi_copy_name(char *out_name, const char *name);
+#endif /* __ACPI__ */
+
#endif