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OpenCloudOS-Kernel
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OMAPDSS: separate overlay channel from ovl_setup 

Overlay channel is configured with ovl_setup, with all the other overlay
attriutes. This patch separates overlay channel setup so that we can
later configure the channel only when needed.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2011-11-03 17:03:44 +02:00
parent f38545da53
commit 2cc5d1af5a
3 changed files with 41 additions and 5 deletions
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40
drivers/video/omap2/dss/dispc.c
View File

@ -922,6 +922,39 @@ void dispc_ovl_set_channel_out(enum omap_plane plane, enum omap_channel channel)
dispc_write_reg(DISPC_OVL_ATTRIBUTES(plane), val);
}
static enum omap_channel dispc_ovl_get_channel_out(enum omap_plane plane)
{
int shift;
u32 val;
enum omap_channel channel;
switch (plane) {
case OMAP_DSS_GFX:
shift = 8;
break;
case OMAP_DSS_VIDEO1:
case OMAP_DSS_VIDEO2:
case OMAP_DSS_VIDEO3:
shift = 16;
break;
default:
BUG();
}
val = dispc_read_reg(DISPC_OVL_ATTRIBUTES(plane));
if (dss_has_feature(FEAT_MGR_LCD2)) {
if (FLD_GET(val, 31, 30) == 0)
channel = FLD_GET(val, shift, shift);
else
channel = OMAP_DSS_CHANNEL_LCD2;
} else {
channel = FLD_GET(val, shift, shift);
}
return channel;
}
static void dispc_ovl_set_burst_size(enum omap_plane plane,
enum omap_burst_size burst_size)
{
@ -1769,7 +1802,7 @@ static int dispc_ovl_calc_scaling(enum omap_plane plane,
}
int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
bool ilace, enum omap_channel channel, bool replication)
bool ilace, bool replication)
{
struct omap_overlay *ovl = omap_dss_get_overlay(plane);
bool five_taps = false;
@ -1781,6 +1814,9 @@ int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
u16 frame_height = oi->height;
unsigned int field_offset = 0;
u16 outw, outh;
enum omap_channel channel;
channel = dispc_ovl_get_channel_out(plane);
DSSDBG("dispc_ovl_setup %d, pa %x, pa_uv %x, sw %d, %d,%d, %dx%d -> "
"%dx%d, cmode %x, rot %d, mir %d, ilace %d chan %d repl %d\n",
@ -1892,8 +1928,6 @@ int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
dispc_ovl_set_pre_mult_alpha(plane, oi->pre_mult_alpha);
dispc_ovl_setup_global_alpha(plane, oi->global_alpha);
dispc_ovl_set_channel_out(plane, channel);
dispc_ovl_enable_replication(plane, replication);
return 0;

2
drivers/video/omap2/dss/dss.h
View File

@ -397,7 +397,7 @@ void dispc_ovl_set_fifo_threshold(enum omap_plane plane, u32 low, u32 high);
u32 dispc_ovl_get_fifo_size(enum omap_plane plane);
u32 dispc_ovl_get_burst_size(enum omap_plane plane);
int dispc_ovl_setup(enum omap_plane plane, struct omap_overlay_info *oi,
bool ilace, enum omap_channel channel, bool replication);
bool ilace, bool replication);
int dispc_ovl_enable(enum omap_plane plane, bool enable);
void dispc_ovl_set_channel_out(enum omap_plane plane,
enum omap_channel channel);

4
drivers/video/omap2/dss/manager.c
View File

@ -777,7 +777,9 @@ static int configure_overlay(enum omap_plane plane)
ilace = ovl->manager->device->type == OMAP_DISPLAY_TYPE_VENC;
r = dispc_ovl_setup(plane, oi, ilace, c->channel, replication);
dispc_ovl_set_channel_out(plane, c->channel);
r = dispc_ovl_setup(plane, oi, ilace, replication);
if (r) {
/* this shouldn't happen */
DSSERR("dispc_ovl_setup failed for ovl %d\n", plane);