From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailrelay3-2.pub.mailoutpod1-cph3.one.com (mailrelay3-2.pub.mailoutpod1-cph3.one.com [46.30.212.2]) by mx.groups.io with SMTP id smtpd.web12.13354.1616769285407627482 for ; Fri, 26 Mar 2021 07:34:46 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@berginkonsult.se header.s=20191106 header.b=ahLt0N24; spf=none, err=permanent DNS error (domain: berginkonsult.se, ip: 46.30.212.2, mailfrom: peter@berginkonsult.se) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=berginkonsult.se; s=20191106; h=content-transfer-encoding:content-type:mime-version:date:message-id:subject: from:to:from; bh=E7jg8qKQ0PFzX5ECTbLnEo1WcrEZXqpjXzf+S1tPwcM=; b=ahLt0N24ITOKAhD0eJs7sNFEwIGUbSzXMUGPZRrqqEP2PL9O6nkokWG5oAc3naPOllAq4/dpNHT0E IZkZCzHVhd2MF7iLs5N0H33VZJtRiXe35PCm5W0cMEgqbXtLswgIhypSdP7BGX0EGmPOKzr/veavr1 nsF9W1JMGYadUV+7kVuta73JkxwjAe9A8n6wjrKjhb2ekUrHU3jY3qW3T46qy3kUzpE3r1zjuNyE/O Eu+1WZlKgb3jb6+PQ130op4Qp/Sj9pbX66XMTeyABK4orfMrIbnCB82AMtuGDylQEvbm2MsA6v96D5 Y56m5SmU34YM8icMiLrRKz9tyq6FMaw== X-HalOne-Cookie: e8c27defea6505ade850a751180283249edb7c23 X-HalOne-ID: 673c23c3-8e40-11eb-8ccf-d0431ea8bb03 Received: from [192.168.12.21] (h-79-136-99-68.na.cust.bahnhof.se [79.136.99.68]) by mailrelay3.pub.mailoutpod1-cph3.one.com (Halon) with ESMTPSA id 673c23c3-8e40-11eb-8ccf-d0431ea8bb03; Fri, 26 Mar 2021 14:34:42 +0000 (UTC) To: "meta-freescale@lists.yoctoproject.org" From: "Peter Bergin" Subject: MIPI DSI driver for imx8mn in linux-fslc Message-ID: <50c2626d-028a-6840-08fb-bf61e069a29d@berginkonsult.se> Date: Fri, 26 Mar 2021 15:35:33 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Hi, I did a try to bring up mainline-bsp on a i.Mx8mn EVK (imx8mn-ddr4-evk) to try graphics. My EVK has a IMX-MIPI-HDMI adapter attached. When booting this setup with mainline-bsp (Linux imx8mn-ddr4-evk 5.10.25+g07073b4e6808) I get no drm device in the system. Digging in to this I can not find any mips-dsi on the aips4 bus in the device-tree and I can not find any driver for it in the kernel tree for linux-fslc (branch 5.10.x+fslc). In linux-imx there is a driver in drivers/gpu/drm/imx/sec_mipi_dsim-imx.c that defines  '.compatible = "fsl,imx8mn-mipi-dsim",' I can not find its counterpart in linux-fslc. My conclusion at the moment is that MIPI-DSI support for imx8mn is not ready upstream. Is this a correct conclusion or have I missed something? Thanks, /Peter