TILER: Added tilview_create to create views from a pointer.

This circumvents the idea of tilview, but is needed and omap_vout
and dss2 cannot currently share a tilview object.  Once 2D areas
areas are integrated into dss2, this method can be removed.

Signed-off-by: Lajos Molnar <molnar@ti.com>
Signed-off-by: David Sin <davidsin@ti.com>

2 files changed, 27 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/include/mach/tiler.h b/arch/arm/mach-omap2/include/mach/tiler.h
index 175b8ffac85..a598fe51ffd 100644
--- a/arch/arm/mach-omap2/include/mach/tiler.h
+++ b/arch/arm/mach-omap2/include/mach/tiler.h
@@ -268,6 +268,20 @@ s32 tiler_reservex_nv12(u32 n, u32 width, u32 height, u32 align, u32 offs,
                                                         u32 gid, pid_t pid);
 
 /**
+ * Create a view based on a tiler address and width and height
+ *
+ * This method should only be used as a last resort, if tilview object cannot
+ * be passed because of incoherence with other view 2D objects that must be
+ * supported.
+ *
+ * @param view          Pointer to a view where the information will be stored
+ * @param ssptr         MUST BE a tiler address
+ * @param width         view width
+ * @param height        view height
+ */
+void tilview_create(struct tiler_view_t *view, u32 phys, u32 width, u32 height);
+
+/**
  * Obtains the view information for a tiler block
  *
  * @param view          Pointer to a view where the information will be stored
diff --git a/drivers/media/video/tiler/tiler-geom.c b/drivers/media/video/tiler/tiler-geom.c
index ca9dd735e16..a988a635c0c 100644
--- a/drivers/media/video/tiler/tiler-geom.c
+++ b/drivers/media/video/tiler/tiler-geom.c
@@ -186,6 +186,19 @@ static u32 tiler_get_address(u32 orient, enum tiler_fmt fmt, u32 x, u32 y)
         return TIL_ADDR((tmp << alignment), orient, fmt);
 }
 
+void tilview_create(struct tiler_view_t *view, u32 phys, u32 width, u32 height)
+{
+        BUG_ON(!is_tiler_addr(phys));
+
+        view->tsptr = phys & ~MASK_VIEW;
+        view->bpp = geom[TILER_FMT(phys)].bpp_m;
+        view->width = width;
+        view->height = height;
+        view->h_inc = view->bpp;
+        view->v_inc = tiler_stride(view->tsptr);
+}
+EXPORT_SYMBOL(tilview_create);
+
 void tilview_get(struct tiler_view_t *view, struct tiler_block_t *blk)
 {
         view->tsptr = blk->phys & ~MASK_VIEW;