From nobody Fri Dec 19 17:01:27 2025 Received: from mx1.tq-group.com (mx1.tq-group.com [93.104.207.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 749961D79B2 for ; Wed, 4 Sep 2024 12:06:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=93.104.207.81 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725451565; cv=none; b=Hc/BQ8gcaYybNruSKa8UwdOXROGnsEOKeisaNj/h5HmvIogjcT+663y5jvpukrvfUZgrQzLLTcNYooq9ZqJ990mOreH2mPecxWZ4Z91CLborHtyB6yTOO27+4ciEQ8QBmr09iGzedD+41HUd+zis6WGQkvYwZ2TudpY6EqkwxM4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725451565; c=relaxed/simple; bh=RIq0jhtP6YL6dkDTRapgeHrjMsu8iAr0r6jGOaHjgA4=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=ani5Tm/p9DZSTQ4BM8+nHFuifMkYmZ8iZJY6Fm2A2A297bVeqn7zw6UuYW5V5vCGtv0kbI1B5XqdGXsnE9oLbsaP5Hi6ols3Y0gMyNKHAcJeE4Wge4vuCj/b8F24048mI0hGCnMcRMgS2AfrrPAJmHaUH+XEp8rNUpL0zLrzYwI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ew.tq-group.com; spf=pass smtp.mailfrom=ew.tq-group.com; dkim=pass (2048-bit key) header.d=tq-group.com header.i=@tq-group.com header.b=Eg7bQhjl; dkim=fail (0-bit key) header.d=ew.tq-group.com header.i=@ew.tq-group.com header.b=BIhD0Qq5 reason="key not found in DNS"; arc=none smtp.client-ip=93.104.207.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ew.tq-group.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ew.tq-group.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tq-group.com header.i=@tq-group.com header.b="Eg7bQhjl"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=ew.tq-group.com header.i=@ew.tq-group.com header.b="BIhD0Qq5" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tq-group.com; i=@tq-group.com; q=dns/txt; s=key1; t=1725451562; x=1756987562; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=+wniz+SsuI6wCX4+/GYWYwCSgqsJJKE8f4C0qwqIRqo=; b=Eg7bQhjl2B2kdtKzuurpBNR8Df+8lEN+U9aTViQrB6DgezSseecve0FT 9mhJnSiw+433rQbypUC+rW1jAFI6oJRxINlBpoomgrtwQVehWADCxsy4y fYht2qmdZ6uoBfVeoLDDneNM8DmlOlIkAQcZzpnUOqjtf1oDw38hw8eGI 1imKxcUYzwAkSVY4Kyis1MSWNTsVVtFDrmbh1SL3X/qMUyIcgNOXsQWL0 7TRKyecn2aQU94i0H4upk4CFY1ou0O7vgneCnua9OFDywhgdp7PQmyDBC zOrCe1WPzdnYaS2yb58pjzh2sNgwRl6y6QxxpzPy/iZ5Y3YV8qegUvR2k Q==; X-CSE-ConnectionGUID: PWyeOEUfQ26Pmot6NRxlYQ== X-CSE-MsgGUID: JNNvjltyR5OhzyIgrq/67g== X-IronPort-AV: E=Sophos;i="6.10,201,1719871200"; d="scan'208";a="38762443" Received: from vmailcow01.tq-net.de ([10.150.86.48]) by mx1.tq-group.com with ESMTP; 04 Sep 2024 14:06:01 +0200 X-CheckPoint: {66D84D29-22-5FF8EC80-F6CEE9F8} X-MAIL-CPID: ADE970C8E52F6C1278F0055BC2A836CD_0 X-Control-Analysis: str=0001.0A782F29.66D84D29.00E6,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0 Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id A2E8B160024; Wed, 4 Sep 2024 14:05:56 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ew.tq-group.com; s=dkim; t=1725451557; h=from:subject:date:message-id:to:cc:mime-version: content-transfer-encoding:in-reply-to:references; bh=+wniz+SsuI6wCX4+/GYWYwCSgqsJJKE8f4C0qwqIRqo=; b=BIhD0Qq5dqLldx2+dAnbTLi0SbQY9D4vLX40CB0D6y4/aqZlaMBTNTWfRqXvSXNspidAk1 bEiNvMt//odEf4FuEhE3ANDJHspPUhNQJERFnQ2uTbHDF5q0xu5KhKP9fci589hYDphJSN MPS4oDmOq+m0OOrvzKl8qmsRsGhWC/uqGztLXdN+7ZDKR0TrPtYSnBxJQIMUxDZ9nMd9Uz EDnegmDPt+3RtrAYNWfves3ZZYQf2/FXHBvJhCLldZuFkL4FQZ4JwVpQMvyt91zlbwiVDq fIddJiq0Buj9NV7Gbe9A/uo3wKPVq3lQTTWoCODJYjhYEkARCRRZaq6KG0lCPg== From: Alexander Stein To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: Alexander Stein , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Dmitry Baryshkov Subject: [PATCH v3 1/3] drm/bridge: tc358767: Use dev_err_probe Date: Wed, 4 Sep 2024 14:05:43 +0200 Message-Id: <20240904120546.1845856-2-alexander.stein@ew.tq-group.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240904120546.1845856-1-alexander.stein@ew.tq-group.com> References: <20240904120546.1845856-1-alexander.stein@ew.tq-group.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Last-TLS-Session-Version: TLSv1.3 Content-Type: text/plain; charset="utf-8" The function calls preceding these returns can return -EPROBE_DEFER. So use dev_err_probe to add some information to /sys/kernel/debug/devices_deferred Signed-off-by: Alexander Stein Reviewed-by: Dmitry Baryshkov --- drivers/gpu/drm/bridge/tc358767.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc3= 58767.c index 290e2532fab19..5ef33ce33dcaa 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -2298,7 +2298,8 @@ static int tc_probe_dpi_bridge_endpoint(struct tc_dat= a *tc) /* port@1 is the DPI input/output port */ ret =3D drm_of_find_panel_or_bridge(dev->of_node, 1, 0, &panel, &bridge); if (ret && ret !=3D -ENODEV) - return ret; + return dev_err_probe(dev, ret, + "Could not find DPI panel or bridge\n"); =20 if (panel) { bridge =3D devm_drm_panel_bridge_add(dev, panel); @@ -2326,7 +2327,8 @@ static int tc_probe_edp_bridge_endpoint(struct tc_dat= a *tc) /* port@2 is the output port */ ret =3D drm_of_find_panel_or_bridge(dev->of_node, 2, 0, &panel, NULL); if (ret && ret !=3D -ENODEV) - return ret; + return dev_err_probe(dev, ret, + "Could not find DSI panel or bridge\n"); =20 if (panel) { struct drm_bridge *panel_bridge; @@ -2550,7 +2552,7 @@ static int tc_probe(struct i2c_client *client) ret =3D tc_mipi_dsi_host_attach(tc); if (ret) { drm_bridge_remove(&tc->bridge); - return ret; + return dev_err_probe(dev, ret, "Failed to attach DSI host\n"); } } =20 --=20 2.34.1