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authorDaniel Vetter <daniel.vetter@ffwll.ch>2021-01-07 13:02:56 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2021-01-07 13:02:57 +0100
commit73dc923eeb5dab8933ec03fecffca590923ef507 (patch)
treeda2cb871fcd7229c954186861d0672ecc9746d90 /include/drm/drm_modeset_helper_vtables.h
parentca765c731ebd62231ec096a121ca11a39a51a07b (diff)
parent3fc5a284213d5fca1c0807ea8725355d39808930 (diff)
Merge tag 'du-next-20210105' of git://linuxtv.org/pinchartl/media into drm-next
- Add default modes for connectors in unknown state - R-Car DU conversion to DRM-managed API - R-Car DU miscellaneous fixes - Miscellaneous bridge and bridge bindings fixes - Assorted misc driver cleanups - Constify drm_driver for PCI devices Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> From: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/X/P8IOrVXkTpLeCm@pendragon.ideasonboard.com
Diffstat (limited to 'include/drm/drm_modeset_helper_vtables.h')
-rw-r--r--include/drm/drm_modeset_helper_vtables.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/include/drm/drm_modeset_helper_vtables.h b/include/drm/drm_modeset_helper_vtables.h
index cbe613858a93..eb706342861d 100644
--- a/include/drm/drm_modeset_helper_vtables.h
+++ b/include/drm/drm_modeset_helper_vtables.h
@@ -866,13 +866,19 @@ struct drm_connector_helper_funcs {
* The usual way to implement this is to cache the EDID retrieved in the
* probe callback somewhere in the driver-private connector structure.
* In this function drivers then parse the modes in the EDID and add
- * them by calling drm_add_edid_modes(). But connectors that driver a
+ * them by calling drm_add_edid_modes(). But connectors that drive a
* fixed panel can also manually add specific modes using
* drm_mode_probed_add(). Drivers which manually add modes should also
* make sure that the &drm_connector.display_info,
* &drm_connector.width_mm and &drm_connector.height_mm fields are
* filled in.
*
+ * Note that the caller function will automatically add standard VESA
+ * DMT modes up to 1024x768 if the .get_modes() helper operation returns
+ * no mode and if the connector status is connector_status_connected or
+ * connector_status_unknown. There is no need to call
+ * drm_add_modes_noedid() manually in that case.
+ *
* Virtual drivers that just want some standard VESA mode with a given
* resolution can call drm_add_modes_noedid(), and mark the preferred
* one using drm_set_preferred_mode().