Commit 503548d6 authored by Biju Das's avatar Biju Das Committed by Wen Zhiwei
Browse files

drm: adv7511: Drop dsi single lane support 

stable inclusion
from stable-v6.6.70
commit 7b977f8c26b65c7788da19a150434171c1df953d
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/IBOHV1

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=7b977f8c26b65c7788da19a150434171c1df953d

--------------------------------

commit 79d67c499c3f886202a40c5cb27e747e4fa4d738 upstream.

As per [1] and [2], ADV7535/7533 supports only 2-, 3-, or 4-lane. Drop
unsupported 1-lane.

[1] https://www.analog.com/media/en/technical-documentation/data-sheets/ADV7535.pdf
[2] https://www.analog.com/media/en/technical-documentation/data-sheets/ADV7533.pdf



Fixes: 1e4d58cd ("drm/bridge: adv7533: Create a MIPI DSI device")
Reported-by: default avatarHien Huynh <hien.huynh.px@renesas.com>
Cc: stable@vger.kernel.org
Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: default avatarAdam Ford <aford173@gmail.com>
Signed-off-by: default avatarBiju Das <biju.das.jz@bp.renesas.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241119192040.152657-4-biju.das.jz@bp.renesas.com


Signed-off-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarWen Zhiwei <wenzhiwei@kylinos.cn>
parent 6d232f6c

drivers/gpu/drm/bridge/adv7511/adv7533.c

+1 −1
Original line number Diff line number Diff line
@@ -175,7 +175,7 @@ int adv7533_parse_dt(struct device_node *np, struct adv7511 *adv) 


	of_property_read_u32(np, "adi,dsi-lanes", &num_lanes);



	if (num_lanes < 1 || num_lanes > 4)

	if (num_lanes < 2 || num_lanes > 4)

		return -EINVAL;



	adv->num_dsi_lanes = num_lanes;