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path: root/drivers/gpu/drm/drm_modes.c
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Diffstat (limited to 'drivers/gpu/drm/drm_modes.c')
-rw-r--r--drivers/gpu/drm/drm_modes.c23
1 files changed, 15 insertions, 8 deletions
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index c78ca0e84ffd..02db9ac82d7a 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -659,10 +659,12 @@ EXPORT_SYMBOL_GPL(drm_display_mode_to_videomode);
* drm_bus_flags_from_videomode - extract information about pixelclk and
* DE polarity from videomode and store it in a separate variable
* @vm: videomode structure to use
- * @bus_flags: information about pixelclk and DE polarity will be stored here
+ * @bus_flags: information about pixelclk, sync and DE polarity will be stored
+ * here
*
- * Sets DRM_BUS_FLAG_DE_(LOW|HIGH) and DRM_BUS_FLAG_PIXDATA_(POS|NEG)EDGE
- * in @bus_flags according to DISPLAY_FLAGS found in @vm
+ * Sets DRM_BUS_FLAG_DE_(LOW|HIGH), DRM_BUS_FLAG_PIXDATA_(POS|NEG)EDGE and
+ * DISPLAY_FLAGS_SYNC_(POS|NEG)EDGE in @bus_flags according to DISPLAY_FLAGS
+ * found in @vm
*/
void drm_bus_flags_from_videomode(const struct videomode *vm, u32 *bus_flags)
{
@@ -672,6 +674,11 @@ void drm_bus_flags_from_videomode(const struct videomode *vm, u32 *bus_flags)
if (vm->flags & DISPLAY_FLAGS_PIXDATA_NEGEDGE)
*bus_flags |= DRM_BUS_FLAG_PIXDATA_NEGEDGE;
+ if (vm->flags & DISPLAY_FLAGS_SYNC_POSEDGE)
+ *bus_flags |= DRM_BUS_FLAG_SYNC_POSEDGE;
+ if (vm->flags & DISPLAY_FLAGS_SYNC_NEGEDGE)
+ *bus_flags |= DRM_BUS_FLAG_SYNC_NEGEDGE;
+
if (vm->flags & DISPLAY_FLAGS_DE_LOW)
*bus_flags |= DRM_BUS_FLAG_DE_LOW;
if (vm->flags & DISPLAY_FLAGS_DE_HIGH)
@@ -684,7 +691,7 @@ EXPORT_SYMBOL_GPL(drm_bus_flags_from_videomode);
* of_get_drm_display_mode - get a drm_display_mode from devicetree
* @np: device_node with the timing specification
* @dmode: will be set to the return value
- * @bus_flags: information about pixelclk and DE polarity
+ * @bus_flags: information about pixelclk, sync and DE polarity
* @index: index into the list of display timings in devicetree
*
* This function is expensive and should only be used, if only one mode is to be
@@ -1257,7 +1264,7 @@ static const char * const drm_mode_status_names[] = {
#undef MODE_STATUS
-static const char *drm_get_mode_status_name(enum drm_mode_status status)
+const char *drm_get_mode_status_name(enum drm_mode_status status)
{
int index = status + 3;
@@ -1346,7 +1353,7 @@ void drm_mode_sort(struct list_head *mode_list)
EXPORT_SYMBOL(drm_mode_sort);
/**
- * drm_mode_connector_list_update - update the mode list for the connector
+ * drm_connector_list_update - update the mode list for the connector
* @connector: the connector to update
*
* This moves the modes from the @connector probed_modes list
@@ -1356,7 +1363,7 @@ EXPORT_SYMBOL(drm_mode_sort);
* This is just a helper functions doesn't validate any modes itself and also
* doesn't prune any invalid modes. Callers need to do that themselves.
*/
-void drm_mode_connector_list_update(struct drm_connector *connector)
+void drm_connector_list_update(struct drm_connector *connector)
{
struct drm_display_mode *pmode, *pt;
@@ -1405,7 +1412,7 @@ void drm_mode_connector_list_update(struct drm_connector *connector)
}
}
}
-EXPORT_SYMBOL(drm_mode_connector_list_update);
+EXPORT_SYMBOL(drm_connector_list_update);
/**
* drm_mode_parse_command_line_for_connector - parse command line modeline for connector