From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 12BCDC636D3 for ; Mon, 6 Feb 2023 15:50:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229965AbjBFPuS (ORCPT ); Mon, 6 Feb 2023 10:50:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59066 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230165AbjBFPuO (ORCPT ); Mon, 6 Feb 2023 10:50:14 -0500 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 9407A46BC for ; Mon, 6 Feb 2023 07:50:13 -0800 (PST) Received: from pendragon.ideasonboard.com (unknown [109.136.43.56]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 0A19C4DA; Mon, 6 Feb 2023 16:50:12 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1675698612; bh=uhc6icxdKUm6hP7wHbn+5cn8E08s8XfuH6HcGj3S9Dw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=GYni2MEwCy6qQmRw9TqPr0Q7OTe3z7MqrCZFLORxHXyyA83npDW1qguScfSnR87UB +FPyKrYQo0E+MPrJKGk6AwJoPno2BHuc9HJmu8vnLIMHma/6OtBBtHx22UvguLQCr8 CAcoF9Zw1bKbHv0cBRpf/8nrWcj6/ao/7Q2UH5Es= Date: Mon, 6 Feb 2023 17:50:10 +0200 From: Laurent Pinchart To: Frieder Schrempf Cc: linux-media , Tim Harvey , linux-arm-kernel@lists.infradead.org Subject: Re: Capture image from imx219 sensor on i.MX8MM Message-ID: References: <9aabef0e-9f48-f8bd-ab7c-e51ac2685116@kontron.de> <8965ad7f-0683-81af-2bfd-e6a0a173c95e@kontron.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <8965ad7f-0683-81af-2bfd-e6a0a173c95e@kontron.de> Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org On Mon, Feb 06, 2023 at 04:38:27PM +0100, Frieder Schrempf wrote: > On 06.02.23 16:31, Laurent Pinchart wrote: > > On Mon, Feb 06, 2023 at 03:24:41PM +0100, Frieder Schrempf wrote: > >> Hi, > >> > >> I'm trying to get a camera stream on our i.MX8MM board up and running > >> with Linux 6.1. I'm using the RPi v2.1 camera module (imx219) as sensor. > >> > >> I basically copied the devicetree setup from Tim's overlay at > >> arch/arm64/boot/dts/freescale/imx8mm-venice-gw72xx-0x-imx219.dts. > >> > >> With all the drivers enabled the devices (imx219, imx7-media-csi, > >> imx-mipi-csis) seem to probe just fine and I see /dev/video0 and > >> /dev/media0. > >> > >> For the v4l subdevices I would expect to see one for the sensor and one > >> for the CSI bridge. But only the latter is there (see below). > >> > >> Is this correct? Am I missing something? How can I setup/enable the > >> pipeline/stream? > > > > Your expectations are correct, but the result isn't. You should see the > > camera sensor in the media graph. Has the imx219 been probed by the > > driver ? Did probe succeed ? > > Yes, the imx219_probe() works just fine and returns with code 0. I also > see v4l2_async_register_subdev_sensor() and the underlying code being > called. > > So I really don't understand why I'm missing the sensor subdev. Any > ideas how to continue debugging? The issue seems to be with v4l2-async then. There's a debugfs file that lists the missing v4l2-async subdevs (I don't recall the path by heard), that can give useful information. Enabling the debug messages from v4l2-async.c may helpt too. -- Regards, Laurent Pinchart