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From: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>,
	Jacopo Mondi <jacopo+renesas@jmondi.org>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>
Cc: Fabrizio Castro <fabrizio.castro@bp.renesas.com>,
	dri-devel@lists.freedesktop.org,
	linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
	Simon Horman <horms@verge.net.au>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Chris Paterson <Chris.Paterson2@renesas.com>,
	Biju Das <biju.das@bp.renesas.com>
Subject: [PATCH/RFC 07/12] drm: rcar-du: lvds: Add support for dual link panels
Date: Fri,  2 Aug 2019 08:34:04 +0100	[thread overview]
Message-ID: <1564731249-22671-8-git-send-email-fabrizio.castro@bp.renesas.com> (raw)
In-Reply-To: <1564731249-22671-1-git-send-email-fabrizio.castro@bp.renesas.com>

If the display comes with two ports, assume it supports dual
link.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
---
 drivers/gpu/drm/rcar-du/rcar_lvds.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/rcar-du/rcar_lvds.c b/drivers/gpu/drm/rcar-du/rcar_lvds.c
index 2d54ae5..97c51c2 100644
--- a/drivers/gpu/drm/rcar-du/rcar_lvds.c
+++ b/drivers/gpu/drm/rcar-du/rcar_lvds.c
@@ -751,6 +751,9 @@ static int rcar_lvds_parse_dt(struct rcar_lvds *lvds)
 			ret = -EPROBE_DEFER;
 			goto done;
 		}
+		if (lvds->info->quirks & RCAR_LVDS_QUIRK_DUAL_LINK)
+			lvds->dual_link = of_graph_get_endpoint_count(remote)
+					== 2;
 	}
 
 	if (lvds->dual_link) {
-- 
2.7.4


  parent reply	other threads:[~2019-08-02  7:35 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-02  7:33 [PATCH/RFC 00/12] Add dual-LVDS panel support to EK874 Fabrizio Castro
2019-08-02  7:33 ` [PATCH/RFC 01/12] dt-bindings: display: renesas: lvds: RZ/G2E needs renesas,companion too Fabrizio Castro
2019-08-02  7:48   ` Laurent Pinchart
2019-08-02  7:33 ` [PATCH/RFC 02/12] dt-bindings: display: renesas: lvds: Document renesas,swap-data Fabrizio Castro
2019-08-02  7:44   ` Laurent Pinchart
2019-08-05  8:59     ` Fabrizio Castro
2019-08-05  9:35       ` Laurent Pinchart
2019-08-05 10:07         ` Fabrizio Castro
2019-08-02  7:34 ` [PATCH/RFC 03/12] dt-bindings: panel: lvds: Add dual-link LVDS display support Fabrizio Castro
2019-08-02  8:00   ` Laurent Pinchart
2019-08-05  9:02     ` Fabrizio Castro
2019-08-02  7:34 ` [PATCH/RFC 04/12] dt-bindings: display: Add bindings for Advantech IDK-2121WR Fabrizio Castro
2019-08-02  8:03   ` Laurent Pinchart
2019-08-05  9:04     ` Fabrizio Castro
2019-08-02  7:34 ` [PATCH/RFC 05/12] drm: rcar-du: lvds: Add data swap support Fabrizio Castro
2019-08-02  8:06   ` Laurent Pinchart
2019-08-02  9:01     ` Geert Uytterhoeven
2019-08-05  9:32     ` Fabrizio Castro
2019-08-05 10:17       ` Laurent Pinchart
2019-08-02  7:34 ` [PATCH/RFC 06/12] drm: rcar-du: lvds: Do not look at ports for identifying bridges Fabrizio Castro
2019-08-02  8:08   ` Laurent Pinchart
2019-08-05  9:06     ` Fabrizio Castro
2019-08-02  7:34 ` Fabrizio Castro [this message]
2019-08-02  8:20   ` [PATCH/RFC 07/12] drm: rcar-du: lvds: Add support for dual link panels Laurent Pinchart
2019-08-05  9:12     ` Fabrizio Castro
2019-08-05  9:48       ` Laurent Pinchart
2019-08-05 10:07         ` Fabrizio Castro
2019-08-02  7:34 ` [PATCH/RFC 08/12] drm: rcar-du: lvds: Fix bridge_to_rcar_lvds Fabrizio Castro
2019-08-02  8:22   ` Laurent Pinchart
2019-08-05  9:13     ` Fabrizio Castro
2019-08-02  7:34 ` [PATCH/RFC 09/12] drm: rcar-du: lvds: Fix companion's mode Fabrizio Castro
2019-08-02  8:26   ` Laurent Pinchart
2019-08-05  9:15     ` Fabrizio Castro

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