Commit b959eb4f authored by Thomas Zimmermann's avatar Thomas Zimmermann
Browse files

drm/client: Look for command-line modes first 



When picking a mode, first look for modes that have been specified
by the user on the kernel's command line. Only if that fails, use
the existing heuristic of picking a nearby mode from it's various
parameters.

Signed-off-by: default avatarThomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: default avatarJavier Martinez Canillas <javierm@redhat.com>
Reviewed-by: default avatarMaxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220511183125.14294-3-tzimmermann@suse.de
parent b6415bd7

drivers/gpu/drm/drm_client_modeset.c

+11 −0
Original line number Diff line number Diff line
@@ -165,6 +165,17 @@ drm_connector_pick_cmdline_mode(struct drm_connector *connector) 
	struct drm_display_mode *mode;

	bool prefer_non_interlace;



	/*

	 * Find a user-defined mode. If the user gave us a valid

	 * mode on the kernel command line, it will show up in this

	 * list.

	 */



	list_for_each_entry(mode, &connector->modes, head) {

		if (mode->type & DRM_MODE_TYPE_USERDEF)

			return mode;

	}



	cmdline_mode = &connector->cmdline_mode;

	if (cmdline_mode->specified == false)

		return NULL;