From patchwork Fri Dec 8 15:07:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Umang Jain X-Patchwork-Id: 13485521 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="gAuvzIPL" Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 732FB122; Fri, 8 Dec 2023 07:08:12 -0800 (PST) Received: from umang.jain (unknown [103.251.226.108]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id B5801EBA; Fri, 8 Dec 2023 16:07:27 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1702048049; bh=nrEAdhHZwA2L0AvxJ6FGfgqEfXwThQSUE+QCVNTuuhs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gAuvzIPLzZbXJAQOVLdFaCDYd4M7E8B4M6iDC4DeTXNdPI1Mc+WFc8omlFcUDmeeJ tuvNgP8E5C3mjtX+vsWmKDvyeLDlRNgHMXfzonSj+Zgw/A+PqS3K7h9oV6LV01NEDb YZaGhlOkwcvLOpu60KBkOgFrLjqmZtzQw+y4W6zc= From: Umang Jain To: devicetree@vger.kernel.org, linux-media@vger.kernel.org Cc: "Paul J . Murphy" , Daniele Alessandrelli , Sakari Ailus , Mauro Carvalho Chehab , Kieran Bingham , Umang Jain , linux-kernel@vger.kernel.org (open list) Subject: [PATCH v3 3/8] media: i2c: imx335: Improve configuration error reporting Date: Fri, 8 Dec 2023 20:37:49 +0530 Message-ID: <20231208150756.124720-4-umang.jain@ideasonboard.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231208150756.124720-1-umang.jain@ideasonboard.com> References: <20231208150756.124720-1-umang.jain@ideasonboard.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Kieran Bingham The existing imx335_parse_hw_config function has two paths that can be taken without reporting to the user the reason for failing to accept the hardware configuration. Extend the error reporting paths to identify failures when probing the device. Reviewed-by: Umang Jain Signed-off-by: Kieran Bingham --- drivers/media/i2c/imx335.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/media/i2c/imx335.c b/drivers/media/i2c/imx335.c index cbabef968e21..31c612c6bdd8 100644 --- a/drivers/media/i2c/imx335.c +++ b/drivers/media/i2c/imx335.c @@ -795,8 +795,10 @@ static int imx335_parse_hw_config(struct imx335 *imx335) } ep = fwnode_graph_get_next_endpoint(fwnode, NULL); - if (!ep) + if (!ep) { + dev_err(imx335->dev, "Failed to get next endpoint\n"); return -ENXIO; + } ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg); fwnode_handle_put(ep); @@ -821,6 +823,8 @@ static int imx335_parse_hw_config(struct imx335 *imx335) if (bus_cfg.link_frequencies[i] == IMX335_LINK_FREQ) goto done_endpoint_free; + dev_err(imx335->dev, "no compatible link frequencies found\n"); + ret = -EINVAL; done_endpoint_free: