The version variable will be used for versioning of this
struct and the corresponding accessor functions.

Signed-off-by: Robert Foss <robert.f...@collabora.com>
Reviewed-by: Rob Herring <r...@kernel.org>
---
 android/gralloc_handle.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/android/gralloc_handle.h b/android/gralloc_handle.h
index 45b9f2e9b8dc..7cbc8ee7cef3 100644
--- a/android/gralloc_handle.h
+++ b/android/gralloc_handle.h
@@ -27,6 +27,7 @@
 #define __ANDROID_GRALLOC_HANDLE_H__
 
 #include <cutils/native_handle.h>
+#include <stdint.h>
 
 /* support users of drm_gralloc/gbm_gralloc */
 #define gralloc_gbm_handle_t gralloc_handle_t
@@ -49,7 +50,9 @@ struct gralloc_handle_t {
         */
        int prime_fd;
 
+       /* api variables */
        int magic; /* differentiate between allocator impls */
+       const uint32_t version; /* api version */
 
        int width; /* width of buffer in pixels */
        int height; /* height of buffer in pixels */
@@ -67,6 +70,7 @@ struct gralloc_handle_t {
        } __attribute__((aligned(8)));
 };
 
+#define GRALLOC_HANDLE_VERSION 1
 #define GRALLOC_HANDLE_MAGIC 0x60585350
 #define GRALLOC_HANDLE_NUM_FDS 1
 #define GRALLOC_HANDLE_NUM_INTS (      \
@@ -79,7 +83,9 @@ struct gralloc_handle_t {
 static struct gralloc_handle_t gralloc_handle_create(int width, int height,
                                                      int format, int usage)
 {
-       struct gralloc_handle_t handle = { .magic = GRALLOC_HANDLE_MAGIC };
+       struct alloc_handle_t handle = {
+               .magic = GRALLOC_HANDLE_MAGIC,
+               .version = GRALLOC_HANDLE_VERSION };
 
        native_handle_t *nhandle = native_handle_create(GRALLOC_HANDLE_NUM_FDS,
                                                            
GRALLOC_HANDLE_NUM_INTS);
-- 
2.14.1

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