OMAP: DSS2: OMAPFB: Add support for switching memory regions
Separate the memory region from the framebuffer device a little bit.
It's now possible to select the memory region used by the framebuffer
device using the new mem_idx parameter of omapfb_plane_info. If the
mem_idx is specified it will be interpreted as an index into the
memory regions array, if it's not specified the framebuffer's index is
used instead. So by default each framebuffer keeps using it's own
memory region which preserves backwards compatibility.
This allows cloning the same memory region to several overlays and yet
each overlay can be controlled independently since they can be
associated with separate framebuffer devices.
Signed-off-by: Ville Syrjälä <ville.syrjala@nokia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
diff --git a/drivers/video/omap2/omapfb/omapfb.h b/drivers/video/omap2/omapfb/omapfb.h
index c9866be..02f1ba9 100644
--- a/drivers/video/omap2/omapfb/omapfb.h
+++ b/drivers/video/omap2/omapfb/omapfb.h
@@ -44,6 +44,7 @@
#define OMAPFB_MAX_OVL_PER_FB 3
struct omapfb2_mem_region {
+ int id;
u32 paddr;
void __iomem *vaddr;
struct vrfb vrfb;
@@ -51,13 +52,13 @@
u8 type; /* OMAPFB_PLANE_MEM_* */
bool alloc; /* allocated by the driver */
bool map; /* kernel mapped by the driver */
+ atomic_t map_count;
};
/* appended to fb_info */
struct omapfb_info {
int id;
- struct omapfb2_mem_region region;
- atomic_t map_count;
+ struct omapfb2_mem_region *region;
int num_overlays;
struct omap_overlay *overlays[OMAPFB_MAX_OVL_PER_FB];
struct omapfb2_device *fbdev;
@@ -76,6 +77,7 @@
unsigned num_fbs;
struct fb_info *fbs[10];
+ struct omapfb2_mem_region regions[10];
unsigned num_displays;
struct omap_dss_device *displays[10];
@@ -117,6 +119,9 @@
int dss_mode_to_fb_mode(enum omap_color_mode dssmode,
struct fb_var_screeninfo *var);
+int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
+ u16 posx, u16 posy, u16 outw, u16 outh);
+
/* find the display connected to this fb, if any */
static inline struct omap_dss_device *fb2display(struct fb_info *fbi)
{