From patchwork Thu Apr 9 16:29:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabio Estevam X-Patchwork-Id: 62958 X-Patchwork-Delegate: hverkuil@xs4all.nl Received: from vger.kernel.org ([209.132.180.67]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1jMa0d-00CvO8-Iz; Thu, 09 Apr 2020 16:26:31 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726936AbgDIQ3T (ORCPT + 1 other); Thu, 9 Apr 2020 12:29:19 -0400 Received: from mail-qt1-f194.google.com ([209.85.160.194]:41827 "EHLO mail-qt1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726706AbgDIQ3T (ORCPT ); Thu, 9 Apr 2020 12:29:19 -0400 Received: by mail-qt1-f194.google.com with SMTP id i3so367758qtv.8 for ; Thu, 09 Apr 2020 09:29:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=9P7rafqbXxs9JOuSQyiPCNhemqH5gCU5YG9s65U6l4Y=; b=gI8YDLF2+vG87fxXOQmeYSh7sXfgmw4grvhCSbJbnpKOyxhk8+oxWLBHnwkrHIqA6n fxtJMx4eIHOaekJi0MknOGK5pDUiacsypOFfegnntrwhKen+9FiPp0AgnSwopTD/V9bq 8WgVHCZ1TBokcBU1WTRMJAiSBIX/MpRRMq5beuP0iRrSnSM8dmk9DoBTTn+VhQt/viEy vvGQ3+DIJj/u8tb2Na2tXp6sMpJfEedAShd7p2vHmf8ZxAX6u+psZ5yUBE9Fdie/JNqZ BNvRitM47pmU7h2NQjRmiRUxn++SV+uqPDnPt//1s1tYUYceEMX3Qh1tb/gp/uZUn6ql itYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=9P7rafqbXxs9JOuSQyiPCNhemqH5gCU5YG9s65U6l4Y=; b=UeuHjcc08H+/99bthFHEahpn3dcrhJ88nTzsHTx+xh5FBxuvhr7JsS+8xVe/41UCoI 5vVQXxG+zUPNS5Oagej7xGB2xkbb5lDBJ/ZpWiCgvhPRDwGRZpylaAtUZHOfr7PFr763 JUZ4/r6/FMmRfvMmE5I/W6ntensWUXjJgu+DZF4KgheGHhx4ZGT8N0Ggv7gB2RFZNTUE zC2cCsn00u9t347h3BAF0HLxhBPDN7ePM5IdEH16kyKVnklIshnaK2hnf/y1fqJRui40 LMyWimsnrUKtxcn+8lmjAo7Tn0TBPmS6iw1UtrAdZ6bw5XNDIKd/p2VJBCaQWRfTTb8E IZHw== X-Gm-Message-State: AGi0PubLc05La5UukmnjGo59l98mi6whNqpgfqpBWcrO/JC2igMPpp2G peWdTu+WOT7EN2S3PTxAZxpQ9868YRo= X-Google-Smtp-Source: APiQypLcDT86pEDmPyrMGti9u+Gkf2lUqsH3tBtD5la9rps3KMWA/sg6V75XXdzVDAFo/RGmW53z4Q== X-Received: by 2002:ac8:5388:: with SMTP id x8mr147608qtp.21.1586449758637; Thu, 09 Apr 2020 09:29:18 -0700 (PDT) Received: from localhost.localdomain ([2804:14c:482:5bb::3]) by smtp.gmail.com with ESMTPSA id x66sm16980587qka.121.2020.04.09.09.29.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Apr 2020 09:29:17 -0700 (PDT) From: Fabio Estevam To: hverkuil-cisco@xs4all.nl Cc: slongerbeam@gmail.com, p.zabel@pengutronix.de, linux-media@vger.kernel.org, Fabio Estevam Subject: [PATCH v2 1/4] media: imx.rst: Fix the MIPI CSI-2 virtual channel Date: Thu, 9 Apr 2020 13:29:42 -0300 Message-Id: <20200409162945.3559-1-festevam@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The current instructions for imx6q-sabresd do not lead to functional capture on OV5640 MIPI CSI-2. The reason for this, as explained by Steve Longerbeam, is that OV5640 by default transmits on virtual channel 0, not channel 1 as is given in the instructions. Adapt the instructions to use virtual channel 0 so that a working camera setup can be achieved on imx6q-sabresd. Also, since we are using an IC direct conversion pipeline, improve the example by demonstrating colorspace and scaling. Signed-off-by: Fabio Estevam Reviewed-by: Steve Longerbeam --- Changes since v1: - Demonstrate colorspace and scaling. (Steve) Documentation/media/v4l-drivers/imx.rst | 31 ++++++++++++------------- 1 file changed, 15 insertions(+), 16 deletions(-) diff --git a/Documentation/media/v4l-drivers/imx.rst b/Documentation/media/v4l-drivers/imx.rst index 1246573c1019..b8df91f83f14 100644 --- a/Documentation/media/v4l-drivers/imx.rst +++ b/Documentation/media/v4l-drivers/imx.rst @@ -645,30 +645,29 @@ The OV5640 module connects to MIPI connector J5 (sorry I don't have the compatible module part number or URL). The following example configures a direct conversion pipeline to capture -from the OV5640, transmitting on MIPI CSI-2 virtual channel 1. $sensorfmt -can be any format supported by the OV5640. $sensordim is the frame -dimension part of $sensorfmt (minus the mbus pixel code). $outputfmt can -be any format supported by the ipu1_ic_prpenc entity at its output pad: +from the OV5640, transmitting on MIPI CSI-2 virtual channel 0. It also +shows colorspace conversion and scaling at IC output. .. code-block:: none # Setup links media-ctl -l "'ov5640 1-003c':0 -> 'imx6-mipi-csi2':0[1]" - media-ctl -l "'imx6-mipi-csi2':2 -> 'ipu1_csi1':0[1]" - media-ctl -l "'ipu1_csi1':1 -> 'ipu1_ic_prp':0[1]" + media-ctl -l "'imx6-mipi-csi2':1 -> 'ipu1_csi0_mux':0[1]" + media-ctl -l "'ipu1_csi0_mux':2 -> 'ipu1_csi0':0[1]" + media-ctl -l "'ipu1_csi0':1 -> 'ipu1_ic_prp':0[1]" media-ctl -l "'ipu1_ic_prp':1 -> 'ipu1_ic_prpenc':0[1]" media-ctl -l "'ipu1_ic_prpenc':1 -> 'ipu1_ic_prpenc capture':0[1]" # Configure pads - media-ctl -V "'ov5640 1-003c':0 [fmt:$sensorfmt field:none]" - media-ctl -V "'imx6-mipi-csi2':2 [fmt:$sensorfmt field:none]" - media-ctl -V "'ipu1_csi1':1 [fmt:AYUV32/$sensordim field:none]" - media-ctl -V "'ipu1_ic_prp':1 [fmt:AYUV32/$sensordim field:none]" - media-ctl -V "'ipu1_ic_prpenc':1 [fmt:$outputfmt field:none]" - -Streaming can then begin on "ipu1_ic_prpenc capture" node. The v4l2-ctl -tool can be used to select any supported YUV or RGB pixelformat on the -capture device node. - + media-ctl -V "'ov5640 1-003c':0 [fmt:UYVY2X8/640x480]" + media-ctl -V "'imx6-mipi-csi2':1 [fmt:UYVY2X8/640x480]" + media-ctl -V "'ipu1_csi0_mux':2 [fmt:UYVY2X8/640x480]" + media-ctl -V "'ipu1_csi0':1 [fmt:AYUV32/640x480]" + media-ctl -V "'ipu1_ic_prp':1 [fmt:AYUV32/640x480]" + media-ctl -V "'ipu1_ic_prpenc':1 [fmt:ARGB8888_1X32/800x600]" + # Set a format at the capture interface + v4l2-ctl -d /dev/video1 --set-fmt-video=pixelformat=RGB3 + +Streaming can then begin on "ipu1_ic_prpenc capture" node. Known Issues ------------