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 02EAE19AD75; Thu, 6 Jun 2024 14:15:45 +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=1717683345; cv=none; b=envIt1lIIMYzuNbCO8UDyabjL0b8W8zhHVM84s//cHsKLjVN1Ap7a52eV3sGNWxSjbq1HxgBOG8xBXaWpsls3KBmV/6qA30mtTWqFGgerFnUVesXddJwDDZ3zpcCXgtUBWUw7WdehM2IORPuj8NSXhLnv8xFY8gL/Ix2x3oUSM8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717683345; c=relaxed/simple; bh=Z7Hl2JpSpPgqymYbKeRtPbuIayS85YwijNWPO9FPhhs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=ukB6c9tJDpYNpc3CIChNf6X3WxzB0A53QELXHXOcF2mBE5CXcDnjCTXoFVmva47j1HkSYw0pIdzRqO62/31Ua4avouVrmn9eaYeJJE9jJP/h31uDKaVNXwoClF3SwGsEJDB54TjA47Hk2Tdxnc2j0ZRgwVsr86np6P6KtJDwnkI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=MKXlf2wK; 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="MKXlf2wK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D52DBC2BD10; Thu, 6 Jun 2024 14:15:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1717683344; bh=Z7Hl2JpSpPgqymYbKeRtPbuIayS85YwijNWPO9FPhhs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MKXlf2wKjP9VKsY+YO28A6VJZ4Oef/XVrLPpOqKBhlFWUTC5edbivuemRXobggAWU l/7OR+dNjAJcOOHUoRTxivkM9sL/i46wns11lnCdevV4F23igHLYAcfZKpL0TiM+X3 zPeulU9ZhXs/JJwX96PyHrelg4dVsd9ugkWbnI6E= 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 6.1 226/473] drm/bridge: lt8912b: Dont log an error when DSI host cant be found Date: Thu, 6 Jun 2024 16:02:35 +0200 Message-ID: <20240606131707.348575351@linuxfoundation.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240606131659.786180261@linuxfoundation.org> References: <20240606131659.786180261@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 6.1-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 ac76c23635892..55a7fa4670a7a 100644 --- a/drivers/gpu/drm/bridge/lontium-lt8912b.c +++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c @@ -485,10 +485,8 @@ 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