From: Biju Das Date: Tue, 19 Nov 2024 19:20:31 +0000 (+0000) Subject: drm: adv7511: Drop dsi single lane support X-Git-Tag: v5.10.233~2 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=17c3f7988f32db00e0c1a1d271b1f26b86761549;p=thirdparty%2Fkernel%2Fstable.git drm: adv7511: Drop dsi single lane support 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: 1e4d58cd7f88 ("drm/bridge: adv7533: Create a MIPI DSI device") Reported-by: Hien Huynh Cc: stable@vger.kernel.org Reviewed-by: Laurent Pinchart Reviewed-by: Adam Ford Signed-off-by: Biju Das Link: https://patchwork.freedesktop.org/patch/msgid/20241119192040.152657-4-biju.das.jz@bp.renesas.com Signed-off-by: Dmitry Baryshkov Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/gpu/drm/bridge/adv7511/adv7533.c b/drivers/gpu/drm/bridge/adv7511/adv7533.c index e0bdedf22390c..2cade7ae0c0de 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7533.c +++ b/drivers/gpu/drm/bridge/adv7511/adv7533.c @@ -191,7 +191,7 @@ 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;