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 D1E0D37D7A1; Sat, 28 Feb 2026 17:36:06 +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=1772300166; cv=none; b=aBGR+ahu9x71/FBWHvR/3c1BPZN+wb5FazQ7PBviZVzFWFryybXjK0ZvAMGe4uPFZ4t0oFDg/K9F/VTEMkggU+A+2l3SkfVO3BGy6qmKSf43aH2a/6wNiJyxeVqGQY1nc3iJVR8qTx7iQzq4mhTJBWdSAf2UU5T2ibilH7l+gMU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772300166; c=relaxed/simple; bh=CYMxtiBY6+W5eiUXskeWyFEavQ9L2866Ci7dWzcUohk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=NHcOKHJlOrBXX9clo3OXboWGMIDWaH7hRKkRs88lV3cXIi4nmRPsyylSY3Q55G7sF4PUAiVdj233Lp0GogCWyQbESMLvTLdH7pTxYBTXE7h89bnx2i9Z/pT+yE/ls11KMzHXINCgCtVb6IBvnMjs2OHtGsvNgJv/N63ZryBhk9M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=JyQ1YbP1; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="JyQ1YbP1" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CB8A5C116D0; Sat, 28 Feb 2026 17:36:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772300166; bh=CYMxtiBY6+W5eiUXskeWyFEavQ9L2866Ci7dWzcUohk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JyQ1YbP1x6Q8LyR8PlBkBMp6IXqaUxkdd5Lds1lI7iVBeaGqAuVi77oW/Wg/v1cg4 mZgnPIsFKdjnskpVvKfhf3Nax8Xm/iU1eZLq3bEEI5k24W36CySHftdg3KJoLV6CDC 5hGiCyLDDerECTwx8B5wuYUW+8Y2Mo1nkcyIlfkuyuNmybt1Cq42NaIQWB+JiNV50U ulRear1hfIgn4zerqxFBDw1InzgSVGyyycSRZ2imrCa/pw37NJrcuUUkTnlGV1AMzf bHSXKchnkj4GrtMFaI2ZHoMRgahrkDbXTtQcAdNZW6uk/8gE+yzJRUd9SId5X2vBoo DTCTnkZQhW7IQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Hans de Goede , Laurent Pinchart , Sakari Ailus , Hans Verkuil , Sasha Levin Subject: [PATCH 6.19 185/844] media: mt9m114: Return -EPROBE_DEFER if no endpoint is found Date: Sat, 28 Feb 2026 12:21:38 -0500 Message-ID: <20260228173244.1509663-186-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228173244.1509663-1-sashal@kernel.org> References: <20260228173244.1509663-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit From: Hans de Goede [ Upstream commit 437e1f6a960035166495a5117aacbc596115eeb6 ] With IPU# bridges, endpoints may only be created when the IPU bridge is initialized. This may happen after the sensor driver's first probe(). Reviewed-by: Laurent Pinchart Signed-off-by: Hans de Goede Signed-off-by: Sakari Ailus Signed-off-by: Hans Verkuil Signed-off-by: Sasha Levin --- drivers/media/i2c/mt9m114.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/media/i2c/mt9m114.c b/drivers/media/i2c/mt9m114.c index 554f25071cca6..b1325e2cd1321 100644 --- a/drivers/media/i2c/mt9m114.c +++ b/drivers/media/i2c/mt9m114.c @@ -2360,11 +2360,17 @@ static int mt9m114_parse_dt(struct mt9m114 *sensor) struct fwnode_handle *ep; int ret; + /* + * On ACPI systems the fwnode graph can be initialized by a bridge + * driver, which may not have probed yet. Wait for this. + * + * TODO: Return an error once bridge driver code will have moved + * to the ACPI core. + */ ep = fwnode_graph_get_next_endpoint(fwnode, NULL); - if (!ep) { - dev_err(&sensor->client->dev, "No endpoint found\n"); - return -EINVAL; - } + if (!ep) + return dev_err_probe(&sensor->client->dev, -EPROBE_DEFER, + "waiting for fwnode graph endpoint\n"); sensor->bus_cfg.bus_type = V4L2_MBUS_UNKNOWN; ret = v4l2_fwnode_endpoint_alloc_parse(ep, &sensor->bus_cfg); -- 2.51.0