Links between DSS entities are made in dss_recheck_connections when a new panel
is probed. Rewrite the code in dss_recheck_connections to link managers to
outputs, and outputs to devices.
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(existing outputs/devices unset, if default display)) to form the
desired links. The output is linked to the device, and then the manager to the
output. If a probed device's required manager isn't free, the required output
is still connected to the device so that it's easier to use the panel in the
future.
Signed-off-by: Archit Taneja <archit@xxxxxx>
---
drivers/video/omap2/dss/overlay.c | 96 +++++++++++++++++++++----------------
1 file changed, 56 insertions(+), 40 deletions(-)
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index 952c6fa..07605f1 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -525,51 +525,67 @@ void dss_init_overlays(struct platform_device *pdev)
void dss_recheck_connections(struct omap_dss_device *dssdev, bool force)
{
int i;
- struct omap_overlay_manager *lcd_mgr;
- struct omap_overlay_manager *tv_mgr;
- struct omap_overlay_manager *lcd2_mgr = NULL;
- struct omap_overlay_manager *lcd3_mgr = NULL;
struct omap_overlay_manager *mgr = NULL;
+ 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;
+ }
- lcd_mgr = omap_dss_get_overlay_manager(OMAP_DSS_CHANNEL_LCD);
- tv_mgr = omap_dss_get_overlay_manager(OMAP_DSS_CHANNEL_DIGIT);
- if (dss_has_feature(FEAT_MGR_LCD3))
- lcd3_mgr = omap_dss_get_overlay_manager(OMAP_DSS_CHANNEL_LCD3);
- if (dss_has_feature(FEAT_MGR_LCD2))
- lcd2_mgr = omap_dss_get_overlay_manager(OMAP_DSS_CHANNEL_LCD2);
-
- if (dssdev->channel == OMAP_DSS_CHANNEL_LCD3) {
- if (!lcd3_mgr->device || force) {
- if (lcd3_mgr->device)
- lcd3_mgr->unset_device(lcd3_mgr);
- lcd3_mgr->set_device(lcd3_mgr, dssdev);
- mgr = lcd3_mgr;
- }
- } else if (dssdev->channel == OMAP_DSS_CHANNEL_LCD2) {
- if (!lcd2_mgr->device || force) {
- if (lcd2_mgr->device)
- lcd2_mgr->unset_device(lcd2_mgr);
- lcd2_mgr->set_device(lcd2_mgr, dssdev);
- mgr = lcd2_mgr;
- }
- } else if (dssdev->type != OMAP_DISPLAY_TYPE_VENC
- && dssdev->type != OMAP_DISPLAY_TYPE_HDMI) {
- if (!lcd_mgr->device || force) {
- if (lcd_mgr->device)
- lcd_mgr->unset_device(lcd_mgr);
- lcd_mgr->set_device(lcd_mgr, dssdev);
- mgr = lcd_mgr;
- }
+ /*
+ * We don't want to touch board files and mention channel for VENC
+ * devices. Force the channel as DIGIT for HDMI and VENC devices
+ */
+ if (dssdev->type == OMAP_DISPLAY_TYPE_VENC ||
+ dssdev->type == OMAP_DISPLAY_TYPE_HDMI)
+ dssdev->channel = OMAP_DSS_CHANNEL_DIGIT;
+
+ mgr = omap_dss_get_overlay_manager(dssdev->channel);
+
+ if (!mgr || !out) {
+ DSSERR("Incorrect manager or output\n");
+ return;
}
- if (dssdev->type == OMAP_DISPLAY_TYPE_VENC
- || dssdev->type == OMAP_DISPLAY_TYPE_HDMI) {
- if (!tv_mgr->device || force) {
- if (tv_mgr->device)
- tv_mgr->unset_device(tv_mgr);
- tv_mgr->set_device(tv_mgr, dssdev);
- mgr = tv_mgr;
+ if (!mgr->output || force) {
+ struct omap_dss_output *curr_out = mgr->output;
+
+ if (curr_out) {
+ if (curr_out->device)
+ curr_out->unset_device(curr_out);
+ mgr->unset_output(mgr);
}
+ out->set_device(out, dssdev);
+ mgr->set_output(mgr, out);
+ } else {
+ /*
+ * connect a floating output to the device even if the desired
+ * manager is in use
+ */
+ if (!out->manager && !out->device)
+ out->set_device(out, dssdev);
}
if (mgr) {
--
1.7.9.5
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