From nobody Tue Feb 10 10:03:26 2026 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (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 3CAEC158D80 for ; Mon, 15 Apr 2024 21:49:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713217799; cv=none; b=HHw3jC+lZtNSSyN6Wtbf5xvCISAUws9D7zM9X65RqEPvLqFmvLdWES3I/AXov6CEke4UfZ+oA3cqQNi7v7c6lWSVbSCnBGYHIVqvk41A+Ca0et4yqV4VQJFmC1rm6WpapqWlCHZdLtG/zP4ZaLLcer2aVAxZv2ISQ26OZ2OY+rI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713217799; c=relaxed/simple; bh=bChM9UGlVtj6Xr9kbCiD5QbzhVFBRYOxb2a7pbEdNCY=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=sEEaTt2kDm+jTk4AauvXDDA87EQwieJ0eGkEOS+npjn9V6UiKDU5jSmJozkA+2NiR4XX2VZwY/g6A4saWzXVX5lyKr2gx5yBCj1uP2k6AxIXjxgF5WJd8KcRxB+gxAbIn7wLYO2jFNGIgAi2cq2ZDb23Ncl4k/elaLsywm08aA8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=Xxp3pbQT; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="Xxp3pbQT" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1713217796; bh=bChM9UGlVtj6Xr9kbCiD5QbzhVFBRYOxb2a7pbEdNCY=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=Xxp3pbQT5sD3WMcpp5eV4CHA+OwQi5doxsuL54tmNV58E9x4SzsBLiuaLX8Eyy/mT Lqz6N3c+f7MQaEra/gXPFT1U/6lC+mLHKRnYuiycjIoBcavb67uj0B4Fx/DkD1+qJP 9TV+U9KLEnB8t2+ZD3jDcvGvh7u7C8s4rzG1AdBx9+5fdyCBuFIJPJhDgt7jFzymen D6BGD2is3aqLIpmb8cP1RM24k5kCYDUbO1ma126guC4P08hh2ayh52QMy//z8Pmng+ 9leb4JN18AZngU986loBDSpgySC+C2U/xrHoJfqt2vnwfKiuYby39PbX3ylAVqW6Fl qcuvPOLVu1n9g== Received: from [192.168.42.226] (zone.collabora.co.uk [167.235.23.81]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: nfraprado) by madrid.collaboradmins.com (Postfix) with ESMTPSA id 066D537811CD; Mon, 15 Apr 2024 21:49:52 +0000 (UTC) From: =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= Date: Mon, 15 Apr 2024 17:49:31 -0400 Subject: [PATCH v3 3/9] drm/bridge: lt8912b: Don't log an error when DSI host can't be found Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240415-anx7625-defer-log-no-dsi-host-v3-3-619a28148e5c@collabora.com> References: <20240415-anx7625-defer-log-no-dsi-host-v3-0-619a28148e5c@collabora.com> In-Reply-To: <20240415-anx7625-defer-log-no-dsi-host-v3-0-619a28148e5c@collabora.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , owen , Jagan Teki , Marek Vasut , Adrien Grassein , Srinivas Kandagatla , Sam Ravnborg , Bjorn Andersson , Vinod Koul , Dmitry Baryshkov , Vinay Simha BN , Christopher Vollo , Jessica Zhang , Marijn Suijten , AngeloGioacchino Del Regno Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, AngeloGioacchino Del Regno , Laurent Pinchart , =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= X-Mailer: b4 0.13.0 Given that failing to find a DSI host causes the driver to defer probe, make use of dev_err_probe() to log the reason. This makes the defer probe reason available and avoids alerting userspace about something that is not necessarily an error. Fixes: 30e2ae943c26 ("drm/bridge: Introduce LT8912B DSI to HDMI bridge") Suggested-by: AngeloGioacchino Del Regno Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Laurent Pinchart Signed-off-by: N=C3=ADcolas F. R. A. Prado --- drivers/gpu/drm/bridge/lontium-lt8912b.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/lontium-lt8912b.c b/drivers/gpu/drm/bri= dge/lontium-lt8912b.c index 4b2ae27f0a57..1a9defa15663 100644 --- a/drivers/gpu/drm/bridge/lontium-lt8912b.c +++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c @@ -494,10 +494,8 @@ static int lt8912_attach_dsi(struct lt8912 *lt) }; =20 host =3D of_find_mipi_dsi_host_by_node(lt->host_node); - if (!host) { - dev_err(dev, "failed to find dsi host\n"); - return -EPROBE_DEFER; - } + if (!host) + return dev_err_probe(dev, -EPROBE_DEFER, "failed to find dsi host\n"); =20 dsi =3D devm_mipi_dsi_device_register_full(dev, host, &info); if (IS_ERR(dsi)) { --=20 2.44.0