drm/panel: Add and fill drm_panel type field

Add a type field to the drm_panel structure to report the panel type,
using DRM_MODE_CONNECTOR_* macros (the values that make sense are LVDS,
eDP, DSI and DPI). This will be used to initialise the corresponding
connector type.

Update all panel drivers accordingly. The panel-simple driver only
specifies the type for the known to be LVDS panels, while all other
panels are left as unknown and will be converted on a case-by-case
basis as they all need to be carefully reviewed.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190904132804.29680-2-laurent.pinchart@ideasonboard.com

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/gpu/drm/drm_panel.c b/drivers/gpu/drm/drm_panel.c
index ba2fad4c9648..ed7985c0535a 100644
--- a/drivers/gpu/drm/drm_panel.c
+++ b/drivers/gpu/drm/drm_panel.c
@@ -46,16 +46,19 @@ static LIST_HEAD(panel_list);
  * @panel: DRM panel
  * @dev: parent device of the panel
  * @funcs: panel operations
+ * @connector_type: the connector type (DRM_MODE_CONNECTOR_*) corresponding to
+ *	the panel interface
  *
  * Initialize the panel structure for subsequent registration with
  * drm_panel_add().
  */
 void drm_panel_init(struct drm_panel *panel, struct device *dev,
-		    const struct drm_panel_funcs *funcs)
+		    const struct drm_panel_funcs *funcs, int connector_type)
 {
 	INIT_LIST_HEAD(&panel->list);
 	panel->dev = dev;
 	panel->funcs = funcs;
+	panel->connector_type = connector_type;
 }
 EXPORT_SYMBOL(drm_panel_init);