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Commit cfc1a062 authored by Daniel Vetter's avatar Daniel Vetter
Browse files

drm: add helper to sort panels to the head of the connector list 



Userspace seems to like this, see

commit cb0953d7
Author: Adam Jackson <ajax@redhat.com>
Date:   Fri Jul 16 14:46:29 2010 -0400

    drm/i915: Initialize LVDS and eDP outputs before anything else

    This makes them sort to the front in X, which makes them likely to be
    the primary outputs if you haven't specified a preference in your DE,
    which is likely to be what you want.

    Signed-off-by: default avatarAdam Jackson <ajax@redhat.com>
    Signed-off-by: default avatarEric Anholt <eric@anholt.net>

Sorting the connector list after the fact is much easier than trying
to be clever with the init sequence.

Acked-by: default avatarDave Airlie <airlied@gmail.com>
Reviewed-by: default avatarAdam Jackson <ajax@redhat.com>
Acked-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent ab4d966c

drivers/gpu/drm/drm_crtc_helper.c

+18 −0
Original line number Diff line number Diff line
@@ -39,6 +39,24 @@ 
#include <drm/drm_fb_helper.h>

#include <drm/drm_edid.h>



void drm_helper_move_panel_connectors_to_head(struct drm_device *dev)

{

	struct drm_connector *connector, *tmp;

	struct list_head panel_list;



	INIT_LIST_HEAD(&panel_list);



	list_for_each_entry_safe(connector, tmp,

				 &dev->mode_config.connector_list, head) {

		if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS ||

		    connector->connector_type == DRM_MODE_CONNECTOR_eDP)

			list_move_tail(&connector->head, &panel_list);

	}



	list_splice(&panel_list, &dev->mode_config.connector_list);

}

EXPORT_SYMBOL(drm_helper_move_panel_connectors_to_head);



static bool drm_kms_helper_poll = true;

module_param_named(poll, drm_kms_helper_poll, bool, 0600);

include/drm/drm_crtc_helper.h

+2 −0
Original line number Diff line number Diff line
@@ -137,6 +137,8 @@ extern bool drm_helper_encoder_in_use(struct drm_encoder *encoder); 


extern void drm_helper_connector_dpms(struct drm_connector *connector, int mode);



extern void drm_helper_move_panel_connectors_to_head(struct drm_device *);



extern int drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb,

					  struct drm_mode_fb_cmd2 *mode_cmd);