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 8D1C6340A47 for ; Sat, 28 Feb 2026 17:50:24 +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=1772301024; cv=none; b=L2GqcYmvEbedwvipVHUHy9NRgNqjJY1tf+Zg1EOE/ksnwutMYeeXeGN1AKScvMgNL4+ziIRGAqsghyXDPBxP8ISMpPLXBquAvHoRd06uxZl/OCDNJc8v4xzkF7/ZoMmKi2uYRS33qJPGqVrg0IRySVYcucGMX19LW2klwVFj704= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772301024; c=relaxed/simple; bh=CYMxtiBY6+W5eiUXskeWyFEavQ9L2866Ci7dWzcUohk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=XgLA/5hIOSsPFGUNUjKKV8nS0jM7g73kGkWXWdZ9ow3PVgCWV6D5eapfKex16/4vZCEU83KdWgPC/o1Q7uoAetlvZUN4ZtqD8vHZK8HGLv8SUwgQ2Wq2zzZtXllVVu9dxreICaO6tsiwbxJgbeIkevNbpEpTblDlnJjZJ9LKSpw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=j6DtegBY; 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="j6DtegBY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C6182C19423; Sat, 28 Feb 2026 17:50:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772301024; bh=CYMxtiBY6+W5eiUXskeWyFEavQ9L2866Ci7dWzcUohk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=j6DtegBYvnc7igR7Mp603SKLPCXifoShHeTAUzqMF51qyxxmW/gV9XFW7bBgX2mPG ogcc0xED3YjE7ar7EPHvFpBMBCYvVEOmJ/eMdo8CmdHJp3Cd+BuouiqcWx2qh7Q4MF rXOHKpYmMsi8PnLQqBd0FDHGG2NCXW48N/r+lU+h95r07NA7Knm1N9h4fPJ/KU5uUH fM93buDsSWUtRL2p5OJfKvzZwdA4kbt7gZO80Nd469Ul4wGlpUw+xDW8SUGGiTzGjk +gV609re0AZUBxfU1js8Pz38LnkQnytGeh6EVKSIMvRWenBs9ZVGH+BJIWxiLTCj3R dwIfzQCzTXPLQ== From: Sasha Levin To: patches@lists.linux.dev Cc: Hans de Goede , Laurent Pinchart , Sakari Ailus , Hans Verkuil , Sasha Levin Subject: [PATCH 6.18 161/752] media: mt9m114: Return -EPROBE_DEFER if no endpoint is found Date: Sat, 28 Feb 2026 12:37:52 -0500 Message-ID: <20260228174750.1542406-161-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228174750.1542406-1-sashal@kernel.org> References: <20260228174750.1542406-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: patches@lists.linux.dev 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