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OMAPDSS: store overlays in a list for each manager 

Current way of handling overlay-manager links is a bit strange: each
manager has a static array, containing pointers to all the overlays
(even those used by other managers). The overlays contain a pointer to
the manager being used.

This patch makes the system a bit saner: each manager has a linked list
of overlays, and only the overlays linked to that manager are in the
list.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2011-11-05 10:59:59 +02:00
parent 5617ad0979
commit 07e327c9c1
4 changed files with 14 additions and 44 deletions
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33
drivers/video/omap2/dss/apply.c
View File

@ -398,8 +398,7 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
{
struct manager_cache_data *mc;
struct overlay_cache_data *oc;
const int num_ovls = dss_feat_get_num_ovls();
int i;
struct omap_overlay *ovl;
mc = &dss_cache.manager_cache[mgr->id];
@ -407,11 +406,8 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr)
configure_dispc();
mc->do_manual_update = false;
for (i = 0; i < num_ovls; ++i) {
oc = &dss_cache.overlay_cache[i];
if (oc->channel != mgr->id)
continue;
list_for_each_entry(ovl, &mgr->overlays, list) {
oc = &dss_cache.overlay_cache[ovl->id];
oc->shadow_dirty = false;
}
@ -584,8 +580,9 @@ static void omap_dss_mgr_apply_ovl_fifos(struct omap_overlay *ovl)
int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
{
int i, r;
int r;
unsigned long flags;
struct omap_overlay *ovl;
DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name);
@ -596,31 +593,15 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
spin_lock_irqsave(&dss_cache.lock, flags);
/* Configure overlays */
for (i = 0; i < mgr->num_overlays; ++i) {
struct omap_overlay *ovl;
ovl = mgr->overlays[i];
if (ovl->manager != mgr)
continue;
list_for_each_entry(ovl, &mgr->overlays, list)
omap_dss_mgr_apply_ovl(ovl);
}
/* Configure manager */
omap_dss_mgr_apply_mgr(mgr);
/* Configure overlay fifos */
for (i = 0; i < mgr->num_overlays; ++i) {
struct omap_overlay *ovl;
ovl = mgr->overlays[i];
if (ovl->manager != mgr)
continue;
list_for_each_entry(ovl, &mgr->overlays, list)
omap_dss_mgr_apply_ovl_fifos(ovl);
}
r = 0;
if (mgr->enabled && !mgr_manual_update(mgr)) {

10
drivers/video/omap2/dss/manager.c
View File

@ -470,8 +470,8 @@ static struct kobj_type manager_ktype = {
static int omap_dss_set_device(struct omap_overlay_manager *mgr,
struct omap_dss_device *dssdev)
{
int i;
int r;
struct omap_overlay *ovl;
if (dssdev->manager) {
DSSERR("display '%s' already has a manager '%s'\n",
@ -485,10 +485,8 @@ static int omap_dss_set_device(struct omap_overlay_manager *mgr,
return -EINVAL;
}
for (i = 0; i < mgr->num_overlays; i++) {
struct omap_overlay *ovl = mgr->overlays[i];
if (ovl->manager != mgr || !ovl->info.enabled)
list_for_each_entry(ovl, &mgr->overlays, list) {
if (!ovl->info.enabled)
continue;
r = dss_check_overlay(ovl, dssdev);
@ -626,7 +624,7 @@ int dss_init_overlay_managers(struct platform_device *pdev)
mgr->supported_displays =
dss_feat_get_supported_displays(mgr->id);
dss_overlay_setup_dispc_manager(mgr);
INIT_LIST_HEAD(&mgr->overlays);
r = kobject_init_and_add(&mgr->kobj, &manager_ktype,
&pdev->dev.kobj, "manager%d", i);

12
drivers/video/omap2/dss/overlay.c
View File

@ -566,6 +566,7 @@ static int omap_dss_set_manager(struct omap_overlay *ovl,
}
ovl->manager = mgr;
list_add_tail(&ovl->list, &mgr->overlays);
ovl->manager_changed = true;
/* XXX: When there is an overlay on a DSI manual update display, and
@ -597,6 +598,7 @@ static int omap_dss_unset_manager(struct omap_overlay *ovl)
}
ovl->manager = NULL;
list_del(&ovl->list);
ovl->manager_changed = true;
return 0;
@ -617,14 +619,6 @@ struct omap_overlay *omap_dss_get_overlay(int num)
}
EXPORT_SYMBOL(omap_dss_get_overlay);
static struct omap_overlay *dispc_overlays[MAX_DSS_OVERLAYS];
void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr)
{
mgr->num_overlays = dss_feat_get_num_ovls();
mgr->overlays = dispc_overlays;
}
void dss_init_overlays(struct platform_device *pdev)
{
int i, r;
@ -684,8 +678,6 @@ void dss_init_overlays(struct platform_device *pdev)
if (r)
DSSERR("failed to create sysfs file\n");
dispc_overlays[i] = ovl;
}
}

3
include/video/omapdss.h
View File

@ -423,8 +423,7 @@ struct omap_overlay_manager {
const char *name;
enum omap_channel id;
enum omap_overlay_manager_caps caps;
int num_overlays;
struct omap_overlay **overlays;
struct list_head overlays;
enum omap_display_type supported_displays;
/* dynamic fields */