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Commit d6a4baf4 authored by Kieran Bingham's avatar Kieran Bingham Committed by Greg Kroah-Hartman
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drm: rcar-du: Update Gen3 output limitations 



[ Upstream commit 2a3181d9cfd6d5aa48f8527708d0c32072072cef ]

The R-Car Gen3 DU utilises the VSP1 hardware for memory access. The
limits on the RPF and WPF in this pipeline are 8190x8190.

Update the supported maximum sizes accordingly.

Signed-off-by: default avatarKieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 73ad8868

drivers/gpu/drm/rcar-du/rcar_du_kms.c

+12 −2
Original line number Diff line number Diff line
@@ -516,12 +516,22 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) 


	dev->mode_config.min_width = 0;

	dev->mode_config.min_height = 0;

	dev->mode_config.max_width = 4095;

	dev->mode_config.max_height = 2047;

	dev->mode_config.normalize_zpos = true;

	dev->mode_config.funcs = &rcar_du_mode_config_funcs;

	dev->mode_config.helper_private = &rcar_du_mode_config_helper;



	if (rcdu->info->gen < 3) {

		dev->mode_config.max_width = 4095;

		dev->mode_config.max_height = 2047;

	} else {

		/*

		 * The Gen3 DU uses the VSP1 for memory access, and is limited

		 * to frame sizes of 8190x8190.

		 */

		dev->mode_config.max_width = 8190;

		dev->mode_config.max_height = 8190;

	}



	rcdu->num_crtcs = hweight8(rcdu->info->channels_mask);



	ret = rcar_du_properties_init(rcdu);