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authorArchit Taneja <archit@ti.com>2012-09-10 14:34:16 +0530
committerTomi Valkeinen <tomi.valkeinen@ti.com>2012-09-26 14:58:33 +0300
commit3224827630f1823c1181e562af9d36951f6cbd11 (patch)
treeff71a396a6e9b0c15bb6a8eb6ba45b3d2e9e4150 /drivers/video
parent23e2aa644f39fbc8121f49dd50ce85590cc4e4b7 (diff)
downloadop-kernel-dev-3224827630f1823c1181e562af9d36951f6cbd11.zip
op-kernel-dev-3224827630f1823c1181e562af9d36951f6cbd11.tar.gz
OMAPDSS: Create links between managers, outputs and devices
Links between DSS entities are made in dss_init_connections() when a panel device is registered, and are removed in dss_uninit_connections() when the device is unregistered. Modify these functions to incorporate the addition of outputs. The fields in omap_dss_device struct gives information on which output and manager to connect to. The desired manager and output pointers are retrieved and prepared to form the desired links. The output is linked to the device, and then the manager to the output. A helper function omapdss_get_output_from_device() is created to retrieve the output from the display by checking it's type, and the module id in case of DSI. Signed-off-by: Archit Taneja <archit@ti.com>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/omap2/dss/display.c35
-rw-r--r--drivers/video/omap2/dss/dss.h1
-rw-r--r--drivers/video/omap2/dss/output.c33
3 files changed, 61 insertions, 8 deletions
diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c
index db83ae8..ccf8550 100644
--- a/drivers/video/omap2/dss/display.c
+++ b/drivers/video/omap2/dss/display.c
@@ -327,22 +327,35 @@ EXPORT_SYMBOL(omapdss_default_get_timings);
*/
static int dss_init_connections(struct omap_dss_device *dssdev, bool force)
{
+ struct omap_dss_output *out;
struct omap_overlay_manager *mgr;
int i, r;
- WARN_ON(dssdev->manager);
+ out = omapdss_get_output_from_dssdev(dssdev);
+
+ WARN_ON(dssdev->output);
+ WARN_ON(out->device);
+
+ r = omapdss_output_set_device(out, dssdev);
+ if (r) {
+ DSSERR("failed to connect output to new device\n");
+ return r;
+ }
mgr = omap_dss_get_overlay_manager(dssdev->channel);
- if (mgr->device && !force)
+ if (mgr->output && !force)
return 0;
- if (mgr->device)
- mgr->unset_device(mgr);
+ if (mgr->output)
+ mgr->unset_output(mgr);
- r = mgr->set_device(mgr, dssdev);
+ r = mgr->set_output(mgr, out);
if (r) {
- DSSERR("failed to set initial manager\n");
+ DSSERR("failed to connect manager to output of new device\n");
+
+ /* remove the output-device connection we just made */
+ omapdss_output_unset_device(out);
return r;
}
@@ -366,8 +379,14 @@ static int dss_init_connections(struct omap_dss_device *dssdev, bool force)
static void dss_uninit_connections(struct omap_dss_device *dssdev)
{
- if (dssdev->manager)
- dssdev->manager->unset_device(dssdev->manager);
+ if (dssdev->output) {
+ struct omap_overlay_manager *mgr = dssdev->output->manager;
+
+ if (mgr)
+ mgr->unset_output(mgr);
+
+ omapdss_output_unset_device(dssdev->output);
+ }
}
int dss_init_device(struct platform_device *pdev,
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index b5c0df4..a14528b 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -232,6 +232,7 @@ int dss_ovl_unset_manager(struct omap_overlay *ovl);
/* output */
void dss_register_output(struct omap_dss_output *out);
void dss_unregister_output(struct omap_dss_output *out);
+struct omap_dss_output *omapdss_get_output_from_dssdev(struct omap_dss_device *dssdev);
/* display */
int dss_suspend_all_devices(void);
diff --git a/drivers/video/omap2/dss/output.c b/drivers/video/omap2/dss/output.c
index 1a84b79..813f266 100644
--- a/drivers/video/omap2/dss/output.c
+++ b/drivers/video/omap2/dss/output.c
@@ -113,3 +113,36 @@ struct omap_dss_output *omap_dss_get_output(enum omap_dss_output_id id)
return NULL;
}
+
+struct omap_dss_output *omapdss_get_output_from_dssdev(struct omap_dss_device *dssdev)
+{
+ struct omap_dss_output *out = NULL;
+ enum omap_dss_output_id id;
+
+ switch (dssdev->type) {
+ case OMAP_DISPLAY_TYPE_DPI:
+ out = omap_dss_get_output(OMAP_DSS_OUTPUT_DPI);
+ break;
+ case OMAP_DISPLAY_TYPE_DBI:
+ out = omap_dss_get_output(OMAP_DSS_OUTPUT_DBI);
+ break;
+ case OMAP_DISPLAY_TYPE_SDI:
+ out = omap_dss_get_output(OMAP_DSS_OUTPUT_SDI);
+ break;
+ case OMAP_DISPLAY_TYPE_VENC:
+ out = omap_dss_get_output(OMAP_DSS_OUTPUT_VENC);
+ break;
+ case OMAP_DISPLAY_TYPE_HDMI:
+ out = omap_dss_get_output(OMAP_DSS_OUTPUT_HDMI);
+ break;
+ case OMAP_DISPLAY_TYPE_DSI:
+ id = dssdev->phy.dsi.module == 0 ? OMAP_DSS_OUTPUT_DSI1 :
+ OMAP_DSS_OUTPUT_DSI2;
+ out = omap_dss_get_output(id);
+ break;
+ default:
+ break;
+ }
+
+ return out;
+}
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