lib/igt_fb: Add helper function for tile_to_mod

igt_get_fb_tile_size function takes modifer as an argument
This helper function will let users to convert tiling to
modifier and use igt_get_fb_tile_size()

v2: Improved code comment (Paulo)
v3 (from Paulo): Simple rebase.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Praveen Paneri <praveen.paneri@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/igt_fb.h b/lib/igt_fb.h
index df9ad1fc..a193a1e7 100644
--- a/lib/igt_fb.h
+++ b/lib/igt_fb.h
@@ -132,6 +132,7 @@ int igt_create_bo_with_dimensions(int fd, int width, int height, uint32_t format
 				  bool *is_dumb);
 
 uint64_t igt_fb_mod_to_tiling(uint64_t modifier);
+uint64_t igt_fb_tiling_to_mod(uint64_t tiling);
 
 /* cairo-based painting */
 cairo_surface_t *igt_get_cairo_surface(int fd, struct igt_fb *fb);