From patchwork Sat May 31 16:31:46 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 893714 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 0D07C149E13 for ; Sat, 31 May 2025 16:32:19 +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=1748709140; cv=none; b=KeKLHgfFhCI7iFI3lOB9NHxvESc6Kd1alabtGFAJLCkzYIXRfFJkopUngmgBMP+3k7lIY4WBZZE2jDfJFQ3ZaNGndjiJdN3P95QyR/E/k7y9cjIrtIez+O3ntr6NtZySgUyja3gcyo59VB5dy2hXk1Hr7DpjgbPKwjFT3vRASd4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748709140; c=relaxed/simple; bh=J2efyH+WWYocapP0Ros97+bsaPWVDZcSplpNaWEFkd8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=tJo3OPux4pejoQqU9X2UTguOSjkDUma9aPHXaQ8xq4lMdQmwq1tZkdDtNm1JzSn+IFHgMrCuqwW1SPU2HIzu+jjFgu1RVSTaN9SpCwMkC9YXkfFB+ESjsCHW7O9xufSZpVJYnIDGQQ7ZJTIE6skxa5nM8vWbayQaU6iQ8SxrePw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=klMnuxR7; 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="klMnuxR7" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EC5FBC4CEEE; Sat, 31 May 2025 16:32:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1748709139; bh=J2efyH+WWYocapP0Ros97+bsaPWVDZcSplpNaWEFkd8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=klMnuxR7W627PvYwgJzfJnOUZRuC8kOWt5i/JILMS8gFCu0hhsIQRjvJDD8X4UtSq zdBscUtHBEoz+d0RpYUCOOezC2GJ9gXdO/tuuMWnfpoklyG3bBESF4lMgwWbv6oyQn /ABYOJoPfeGEYQm7asgbqqtWze/jxgKoypDS5iwr183zdKBQtAtkUqLtbkpB13lf7x qb2XshwdQMj47QU79aPQal6muIsYEgYj6+PR1rlxbBlVWdOiLZhzJarv/nDPD1rGeb vJU0/4sVLIY0zs9DD8EHv+hl72KrVFO7MLGmzSaWw50h3TkcAajF5CKkgGOyL6rYAR +KLjfnaUjZ48Q== From: Hans de Goede To: Sakari Ailus , Laurent Pinchart Cc: Hans de Goede , Mathis Foerst , Mauro Carvalho Chehab , linux-media@vger.kernel.org, Hans de Goede Subject: [PATCH v2 11/12] media: mt9m114: Return -EPROBE_DEFER if no endpoint is found Date: Sat, 31 May 2025 18:31:46 +0200 Message-ID: <20250531163148.83497-12-hansg@kernel.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250531163148.83497-1-hansg@kernel.org> References: <20250531163148.83497-1-hansg@kernel.org> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 With IPU# bridges, endpoints may only be created when the IPU bridge is initialized. This may happen after the sensor driver's first probe(). Signed-off-by: Hans de Goede --- drivers/media/i2c/mt9m114.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/media/i2c/mt9m114.c b/drivers/media/i2c/mt9m114.c index c4d3122d698e..72914c47ec9a 100644 --- a/drivers/media/i2c/mt9m114.c +++ b/drivers/media/i2c/mt9m114.c @@ -2399,11 +2399,14 @@ static int mt9m114_parse_dt(struct mt9m114 *sensor) struct fwnode_handle *ep; int ret; + /* + * Sometimes the fwnode graph is initialized by the bridge driver, + * wait for this. + */ 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);