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 D37E3196DAB; Thu, 6 Jun 2024 14:16:19 +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=1717683379; cv=none; b=W/OZk7HMClYIHhGSeDmeWcoe7UoC8Dwy2U/lrKM9CT9FraHdak9hFTpfFo9F3dPcxGvhOHqG1qBMe+dsVWJANhADf24wYAJ5b6kDU5MKEd+ywJrNa5IOztLAc8SmXPOmzMbPiYG5afkwH1PLMKhAYHx6R3s62UVVyNDklQb1/DI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717683379; c=relaxed/simple; bh=qjJXVShm7U9x1e3fMdisAtaMAWSjoAsvKGk4vIRmeCs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=TKGdyX9DUxmaJIHm/sa3swe2WftUaypc3FzwYmzcNEuHZrdpr/IgSX6+7eDDXnav/8I74qsIjTOlfbY9s45u+iGgniwQlb0y7BczGevroHxGQAx5kKot05ongqxjug6GucnFNbW1MWS4ayUZef3E0nq406JiKzFncTS9gG3zfHU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=KneBD/nn; 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="KneBD/nn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B2722C32781; Thu, 6 Jun 2024 14:16:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1717683379; bh=qjJXVShm7U9x1e3fMdisAtaMAWSjoAsvKGk4vIRmeCs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KneBD/nn+uOXow6bfMUb/noYF2qQr2KlqjwwsBExOCoHS+vQnC7KVAYEqdA2L9biO O41KFdJ0pDXfktEx3GeBQ9qBVRw1NPyQRb+ztVA99PgodNm+MpNecJR7HxaNkVCVtE DcMy2aKQPjKQ9rNzbkDD4GrNLUyNPyn8vaqygwKQ= 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 6.6 321/744] drm/bridge: lt8912b: Dont log an error when DSI host cant be found Date: Thu, 6 Jun 2024 15:59:53 +0200 Message-ID: <20240606131742.735046007@linuxfoundation.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240606131732.440653204@linuxfoundation.org> References: <20240606131732.440653204@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.6-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 e5839c89a355a..0efcbc73f2a43 100644 --- a/drivers/gpu/drm/bridge/lontium-lt8912b.c +++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c @@ -483,10 +483,8 @@ 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