From patchwork Tue Nov 19 13:10:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13879879 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 81C46D4415C for ; Tue, 19 Nov 2024 13:10:40 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9E0FC10E63D; Tue, 19 Nov 2024 13:10:39 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by gabe.freedesktop.org (Postfix) with ESMTP id 3EE1910E637 for ; Tue, 19 Nov 2024 13:10:38 +0000 (UTC) X-CSE-ConnectionGUID: xNmRzfxsSCOFxr7NVVL4Zw== X-CSE-MsgGUID: 32QdmpE1TEGJIjcsMiCjZg== X-IronPort-AV: E=Sophos;i="6.12,166,1728918000"; d="scan'208";a="229300915" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 19 Nov 2024 22:10:37 +0900 Received: from localhost.localdomain (unknown [10.226.92.216]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 3A4BC41D2395; Tue, 19 Nov 2024 22:10:31 +0900 (JST) From: Biju Das To: Andrzej Hajda , Neil Armstrong , Robert Foss , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: Biju Das , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , dri-devel@lists.freedesktop.org, Geert Uytterhoeven , Prabhakar Mahadev Lad , Biju Das , linux-renesas-soc@vger.kernel.org, Hien Huynh , stable@vger.kernel.org, Laurent Pinchart Subject: [PATCH v5 3/3] drm: adv7511: Drop dsi single lane support Date: Tue, 19 Nov 2024 13:10:05 +0000 Message-ID: <20241119131011.105359-4-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241119131011.105359-1-biju.das.jz@bp.renesas.com> References: <20241119131011.105359-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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 Signed-off-by: Biju Das Reviewed-by: Adam Ford --- Changes in v5: - No change. Changes in v4: - Added link to ADV7533 data sheet. - Collected tags Changes in v3: - Updated commit header and description - Updated fixes tag - Dropped single lane support Changes in v2: - Added the tag "Cc: stable@vger.kernel.org" in the sign-off area. - Dropped Archit Taneja invalid Mail address --- drivers/gpu/drm/bridge/adv7511/adv7533.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/adv7511/adv7533.c b/drivers/gpu/drm/bridge/adv7511/adv7533.c index 5f195e91b3e6..122ad91e8a32 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7533.c +++ b/drivers/gpu/drm/bridge/adv7511/adv7533.c @@ -172,7 +172,7 @@ 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;