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Diffstat (limited to 'drivers/video/omap2/dss')
-rw-r--r--drivers/video/omap2/dss/apply.c14
-rw-r--r--drivers/video/omap2/dss/core.c44
-rw-r--r--drivers/video/omap2/dss/display-sysfs.c28
-rw-r--r--drivers/video/omap2/dss/manager-sysfs.c45
-rw-r--r--drivers/video/omap2/dss/output.c14
5 files changed, 116 insertions, 29 deletions
diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index c844071e8e2..dbd3c2f28a8 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -790,6 +790,18 @@ static void mgr_clear_shadow_dirty(struct omap_overlay_manager *mgr)
}
}
+static int dss_mgr_connect_compat(struct omap_overlay_manager *mgr,
+ struct omap_dss_output *dst)
+{
+ return mgr->set_output(mgr, dst);
+}
+
+static void dss_mgr_disconnect_compat(struct omap_overlay_manager *mgr,
+ struct omap_dss_output *dst)
+{
+ mgr->unset_output(mgr);
+}
+
static void dss_mgr_start_update_compat(struct omap_overlay_manager *mgr)
{
struct mgr_priv_data *mp = get_mgr_priv(mgr);
@@ -1552,6 +1564,8 @@ static void dss_mgr_unregister_framedone_handler_compat(struct omap_overlay_mana
}
static const struct dss_mgr_ops apply_mgr_ops = {
+ .connect = dss_mgr_connect_compat,
+ .disconnect = dss_mgr_disconnect_compat,
.start_update = dss_mgr_start_update_compat,
.enable = dss_mgr_enable_compat,
.disable = dss_mgr_disable_compat,
diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index 710e9f9a443..831abec565f 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -379,6 +379,46 @@ static int dss_driver_remove(struct device *dev)
return 0;
}
+static int omapdss_default_connect(struct omap_dss_device *dssdev)
+{
+ struct omap_dss_output *out;
+ struct omap_overlay_manager *mgr;
+ int r;
+
+ out = dssdev->output;
+
+ if (out == NULL)
+ return -ENODEV;
+
+ mgr = omap_dss_get_overlay_manager(out->dispc_channel);
+ if (!mgr)
+ return -ENODEV;
+
+ r = dss_mgr_connect(mgr, out);
+ if (r)
+ return r;
+
+ return 0;
+}
+
+static void omapdss_default_disconnect(struct omap_dss_device *dssdev)
+{
+ struct omap_dss_output *out;
+ struct omap_overlay_manager *mgr;
+
+ out = dssdev->output;
+
+ if (out == NULL)
+ return;
+
+ mgr = out->manager;
+
+ if (mgr == NULL)
+ return;
+
+ dss_mgr_disconnect(mgr, out);
+}
+
int omap_dss_register_driver(struct omap_dss_driver *dssdriver)
{
dssdriver->driver.bus = &dss_bus_type;
@@ -392,6 +432,10 @@ int omap_dss_register_driver(struct omap_dss_driver *dssdriver)
omapdss_default_get_recommended_bpp;
if (dssdriver->get_timings == NULL)
dssdriver->get_timings = omapdss_default_get_timings;
+ if (dssdriver->connect == NULL)
+ dssdriver->connect = omapdss_default_connect;
+ if (dssdriver->disconnect == NULL)
+ dssdriver->disconnect = omapdss_default_disconnect;
return driver_register(&dssdriver->driver);
}
diff --git a/drivers/video/omap2/dss/display-sysfs.c b/drivers/video/omap2/dss/display-sysfs.c
index 18211a9ab35..81d5dc6e509 100644
--- a/drivers/video/omap2/dss/display-sysfs.c
+++ b/drivers/video/omap2/dss/display-sysfs.c
@@ -33,9 +33,9 @@ static ssize_t display_enabled_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct omap_dss_device *dssdev = to_dss_device(dev);
- bool enabled = dssdev->state != OMAP_DSS_DISPLAY_DISABLED;
- return snprintf(buf, PAGE_SIZE, "%d\n", enabled);
+ return snprintf(buf, PAGE_SIZE, "%d\n",
+ omapdss_device_is_enabled(dssdev));
}
static ssize_t display_enabled_store(struct device *dev,
@@ -44,20 +44,24 @@ static ssize_t display_enabled_store(struct device *dev,
{
struct omap_dss_device *dssdev = to_dss_device(dev);
int r;
- bool enabled;
+ bool enable;
- r = strtobool(buf, &enabled);
+ r = strtobool(buf, &enable);
if (r)
return r;
- if (enabled != (dssdev->state != OMAP_DSS_DISPLAY_DISABLED)) {
- if (enabled) {
- r = dssdev->driver->enable(dssdev);
- if (r)
- return r;
- } else {
- dssdev->driver->disable(dssdev);
- }
+ if (enable == omapdss_device_is_enabled(dssdev))
+ return size;
+
+ if (omapdss_device_is_connected(dssdev) == false)
+ return -ENODEV;
+
+ if (enable) {
+ r = dssdev->driver->enable(dssdev);
+ if (r)
+ return r;
+ } else {
+ dssdev->driver->disable(dssdev);
}
return size;
diff --git a/drivers/video/omap2/dss/manager-sysfs.c b/drivers/video/omap2/dss/manager-sysfs.c
index 72784b3aad2..de7e7b5b1b7 100644
--- a/drivers/video/omap2/dss/manager-sysfs.c
+++ b/drivers/video/omap2/dss/manager-sysfs.c
@@ -50,6 +50,7 @@ static ssize_t manager_display_store(struct omap_overlay_manager *mgr,
int r = 0;
size_t len = size;
struct omap_dss_device *dssdev = NULL;
+ struct omap_dss_device *old_dssdev;
int match(struct omap_dss_device *dssdev, void *data)
{
@@ -66,34 +67,44 @@ static ssize_t manager_display_store(struct omap_overlay_manager *mgr,
if (len > 0 && dssdev == NULL)
return -EINVAL;
- if (dssdev)
+ if (dssdev) {
DSSDBG("display %s found\n", dssdev->name);
- if (mgr->output) {
- r = mgr->unset_output(mgr);
- if (r) {
- DSSERR("failed to unset current output\n");
+ if (omapdss_device_is_connected(dssdev)) {
+ DSSERR("new display is already connected\n");
+ r = -EINVAL;
+ goto put_device;
+ }
+
+ if (omapdss_device_is_enabled(dssdev)) {
+ DSSERR("new display is not disabled\n");
+ r = -EINVAL;
goto put_device;
}
}
- if (dssdev) {
- struct omap_dss_output *out;
+ old_dssdev = mgr->get_device(mgr);
+ if (old_dssdev) {
+ if (omapdss_device_is_enabled(old_dssdev)) {
+ DSSERR("old display is not disabled\n");
+ r = -EINVAL;
+ goto put_device;
+ }
- out = omapdss_find_output_from_display(dssdev);
+ old_dssdev->driver->disconnect(old_dssdev);
+ }
- /*
- * a registered device should have an output connected to it
- * already
- */
- if (!out) {
- DSSERR("device has no output connected to it\n");
+ if (dssdev) {
+ r = dssdev->driver->connect(dssdev);
+ if (r) {
+ DSSERR("failed to connect new device\n");
goto put_device;
}
- r = mgr->set_output(mgr, out);
- if (r) {
- DSSERR("failed to set manager output\n");
+ old_dssdev = mgr->get_device(mgr);
+ if (old_dssdev != dssdev) {
+ DSSERR("failed to connect device to this manager\n");
+ dssdev->driver->disconnect(dssdev);
goto put_device;
}
diff --git a/drivers/video/omap2/dss/output.c b/drivers/video/omap2/dss/output.c
index ab2c0f0ab24..a53b08b2249 100644
--- a/drivers/video/omap2/dss/output.c
+++ b/drivers/video/omap2/dss/output.c
@@ -179,6 +179,20 @@ void dss_uninstall_mgr_ops(void)
}
EXPORT_SYMBOL(dss_uninstall_mgr_ops);
+int dss_mgr_connect(struct omap_overlay_manager *mgr,
+ struct omap_dss_output *dst)
+{
+ return dss_mgr_ops->connect(mgr, dst);
+}
+EXPORT_SYMBOL(dss_mgr_connect);
+
+void dss_mgr_disconnect(struct omap_overlay_manager *mgr,
+ struct omap_dss_output *dst)
+{
+ dss_mgr_ops->disconnect(mgr, dst);
+}
+EXPORT_SYMBOL(dss_mgr_disconnect);
+
void dss_mgr_set_timings(struct omap_overlay_manager *mgr,
const struct omap_video_timings *timings)
{
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-01-01 04:00:54 +0000