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h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=Oe4pTP9HkQIUhqP7j+3FqMmZmdGnO2r3byoKDxh6zJe1fAoftVHZrxeVbPtsb9yrI sRAxGkyEfKav4ZWFDQ6FCq40DNstMDbt7ZYt9d1HxPcJjhhr+Vhsm43df5zMC+E1XU RfLxK8wIhCYLV1vQVFNUNTRHiLyEeu+uM70wOskQO+OPK55SWmxWqlqWs0EIaV2STL jeNSAT0O/IQk79pXb4Y01x78p8hs8WLpRwTFvImMOEMa8aekp/ssl4ond2ULq5ZhMH VoO7a6MDbi0ATB8uHe3fuP1xyTav7pzpPN4fNIU3q47i6O5oCxaUw2uxS1cj/eMcJ0 s7Us4BWoXqpjw== Received: from [192.168.1.205] (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 1CA4337820EC; Fri, 1 Mar 2024 00:12:38 +0000 (UTC) From: =?utf-8?b?TsOtY29sYXMgRi4gUi4gQS4gUHJhZG8=?= Date: Thu, 29 Feb 2024 19:12:11 -0500 Subject: [PATCH v2 5/9] drm/bridge: lt9611uxc: 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 Message-Id: <20240229-anx7625-defer-log-no-dsi-host-v2-5-00506941049a@collabora.com> References: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@collabora.com> In-Reply-To: <20240229-anx7625-defer-log-no-dsi-host-v2-0-00506941049a@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 , =?utf-8?b?TsOtY29sYXMgRi4gUi4gQS4gUHJhZG8=?= X-Mailer: b4 0.13.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1792280651506194185 X-GMAIL-MSGID: 1792280651506194185 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: 0cbbd5b1a012 ("drm: bridge: add support for lontium LT9611UXC bridge") Suggested-by: AngeloGioacchino Del Regno Signed-off-by: Nícolas F. R. A. Prado --- drivers/gpu/drm/bridge/lontium-lt9611uxc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c index e971b75e90ad..b803899126d5 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c @@ -265,10 +265,8 @@ static struct mipi_dsi_device *lt9611uxc_attach_dsi(struct lt9611uxc *lt9611uxc, int ret; host = of_find_mipi_dsi_host_by_node(dsi_node); - if (!host) { - dev_err(dev, "failed to find dsi host\n"); - return ERR_PTR(-EPROBE_DEFER); - } + if (!host) + return ERR_PTR(dev_err_probe(dev, -EPROBE_DEFER, "failed to find dsi host\n")); dsi = devm_mipi_dsi_device_register_full(dev, host, &info); if (IS_ERR(dsi)) {