From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from fllnx209.ext.ti.com ([198.47.19.16]:27259 "EHLO fllnx209.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752812AbdHKK6F (ORCPT ); Fri, 11 Aug 2017 06:58:05 -0400 Subject: Re: [PATCHv2 0/9] omapdrm: hdmi4: add CEC support To: Hans Verkuil , CC: , Laurent Pinchart References: <20170802085408.16204-1-hverkuil@xs4all.nl> From: Tomi Valkeinen Message-ID: Date: Fri, 11 Aug 2017 13:57:18 +0300 MIME-Version: 1.0 In-Reply-To: <20170802085408.16204-1-hverkuil@xs4all.nl> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: quoted-printable Sender: linux-media-owner@vger.kernel.org List-ID: =EF=BB=BFHi Hans, Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Bu= siness ID: 0615521-4. Kotipaikka/Domicile: Helsinki On 02/08/17 11:53, Hans Verkuil wrote: > From: Hans Verkuil >=20 > This patch series adds CEC support for the omap4. It is based on > the 4.13-rc2 kernel with this patch series applied: >=20 > http://www.spinics.net/lists/dri-devel/msg143440.html >=20 > It is virtually identical to the first patch series posted in > April: >=20 > http://www.spinics.net/lists/dri-devel/msg138950.html >=20 > The only two changes are in the Kconfig due to CEC Kconfig > changes in 4.13 (it now selects CEC_CORE instead of depending on > CEC_CORE) and a final patch was added adding a lost_hotplug op > since for proper CEC support I have to know when the hotplug > signal goes away. >=20 > Tested with my Pandaboard. I'm doing some testing with this series on my panda. One issue I see is that when I unload the display modules, I get: [ 75.180206] platform 58006000.encoder: enabled after unload, idling [ 75.187896] platform 58001000.dispc: enabled after unload, idling [ 75.198242] platform 58000000.dss: enabled after unload, idling So I think something is left enabled, most likely in the HDMI driver. I haven't debugged this yet. The first time I loaded the modules I also got "operation stopped when reading edid", but I haven't seen that since. Possibly not related to this series. Are there some simple ways to test the CEC? My buildroot fs has cec-compliance, cec-ctl and cec-follower commands. Are you familiar with those? Can they be used? Tomi