From nobody Mon Sep 29 20:18:41 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B136BC28B2B for ; Mon, 15 Aug 2022 23:22:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347441AbiHOXVm (ORCPT ); Mon, 15 Aug 2022 19:21:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44052 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241876AbiHOXO3 (ORCPT ); Mon, 15 Aug 2022 19:14:29 -0400 Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D10DA474FB; Mon, 15 Aug 2022 13:01:50 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 09617CE12E7; Mon, 15 Aug 2022 20:01:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A3C7CC433C1; Mon, 15 Aug 2022 20:01:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660593707; bh=nDbHqfhdNpzYZKdbkZ4LGk/SQWMKL/OIcQRYU9Jk20o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WkV4qifhuorlxeXj/qCJ2R6gL9rZ2C0bWOL0FZq7e90/IFeJ5ZqsFk9EFxS3EjA73 K12n8SksGVd3mnMmZSnbWMpWu/ez8C6KsSFNJ0U8tvZr0+o7siAS3fYeirOBWqRioQ 7OgGJ0S+LxOOoeMy0KaWJ1u0I0JPaPXaZTPuHmVk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Andrzej Hajda , Lucas Stach , Marek Vasut , Jonas Karlman , Laurent Pinchart , Maxime Ripard , Neil Armstrong , Robert Foss , Sam Ravnborg , Sasha Levin Subject: [PATCH 5.19 0313/1157] drm/bridge: tc358767: Handle dsi_lanes == 0 as invalid Date: Mon, 15 Aug 2022 19:54:29 +0200 Message-Id: <20220815180452.170706172@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220815180439.416659447@linuxfoundation.org> References: <20220815180439.416659447@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Marek Vasut [ Upstream commit 0d662350928e6787d29ab205e47e5aa6f1f792f9 ] Handle empty data-lanes =3D < >; property, which translates to dsi_lanes =3D 0 as invalid. Reviewed-by: Andrzej Hajda Reviewed-by: Lucas Stach Fixes: bbfd3190b6562 ("drm/bridge: tc358767: Add DSI-to-DPI mode support") Signed-off-by: Marek Vasut Cc: Jonas Karlman Cc: Laurent Pinchart Cc: Lucas Stach Cc: Marek Vasut Cc: Maxime Ripard Cc: Neil Armstrong Cc: Robert Foss Cc: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20220519095137.11896-1-= marex@denx.de Signed-off-by: Sasha Levin --- drivers/gpu/drm/bridge/tc358767.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc3= 58767.c index 485717c8f0b4..466b8fc9836a 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -1871,7 +1871,7 @@ static int tc_mipi_dsi_host_attach(struct tc_data *tc) of_node_put(host_node); of_node_put(endpoint); =20 - if (dsi_lanes < 0 || dsi_lanes > 4) + if (dsi_lanes <=3D 0 || dsi_lanes > 4) return -EINVAL; =20 if (!host) --=20 2.35.1