From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 D420213D244; Thu, 13 Jun 2024 12:34:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718282050; cv=none; b=aR32TKNsXAFZOaXWpVQYAet3Faf7HGwdhyiLv8ZbFnuYgGiiNQnYUNvv+YstQcA4QthP5JyVI9krmzYSzB8aRPxGWQ9y/UMeeNGfG54P84BMZDQe46qgTy3ohU+lItUFQ2QouupTHgdNIlfyhaq4e1bUDPIXq4PrxXwqtd7PPpk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718282050; c=relaxed/simple; bh=areXCXlRWenAHaLn0eMjHqZD7S0nI/hhvIcrLFOmnME=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=FGfy49xHxzAXxiGCoCjg2sWaBoy/39uI3+jZGQrdpvGqXygnPRtI7nFZjdRFnhW1xURc75PwJzggXLqDvLQWctvf5AGfiV3MbcHaK0bzEa7nQfSuhdz5gtmZgcM/p0UEf1AAuqP4cO/2B9wW1sHEm6lBuNai5k/AE/Fr8EAqZYo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=iH/Skk4t; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="iH/Skk4t" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 129A7C2BBFC; Thu, 13 Jun 2024 12:34:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1718282050; bh=areXCXlRWenAHaLn0eMjHqZD7S0nI/hhvIcrLFOmnME=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iH/Skk4tzTv6uTrt2rTWoUC1GYH8EpuPkVMv/nZBtg9pNB22OpdcieAVz/psrluNc JkbWED/TUvo1N4wp2ln5vJzhYtyuwmGzAD7mY7t4zVeKXFcW8AoKIw3rQiUWNvppqr ZHu0TBOswe+KhS4VKYKMXmTZwpvjZ8SungtV6uKQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, AngeloGioacchino Del Regno , Laurent Pinchart , "=?UTF-8?q?N=C3=ADcolas=20F . =20R . =20A . =20Prado?=" , Robert Foss , Sasha Levin Subject: [PATCH 5.15 144/402] drm/bridge: lt8912b: Dont log an error when DSI host cant be found Date: Thu, 13 Jun 2024 13:31:41 +0200 Message-ID: <20240613113307.752459481@linuxfoundation.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240613113302.116811394@linuxfoundation.org> References: <20240613113302.116811394@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Nícolas F. R. A. Prado [ Upstream commit b3b4695ff47c4964d4ccb930890c9ffd8e455e20 ] 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: Nícolas F. R. A. Prado Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20240415-anx7625-defer-log-no-dsi-host-v3-3-619a28148e5c@collabora.com Signed-off-by: Sasha Levin --- 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/bridge/lontium-lt8912b.c index e16b0fc0cda0f..6379d5c8edff1 100644 --- a/drivers/gpu/drm/bridge/lontium-lt8912b.c +++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c @@ -475,10 +475,8 @@ static int lt8912_attach_dsi(struct lt8912 *lt) }; host = 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"); dsi = devm_mipi_dsi_device_register_full(dev, host, &info); if (IS_ERR(dsi)) { -- 2.43.0