From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from devils.ext.ti.com (devils.ext.ti.com [198.47.26.153]) by yocto-www.yoctoproject.org (Postfix) with ESMTP id 13000E0043F for ; Wed, 29 Jan 2014 13:46:07 -0800 (PST) Received: from dflxv15.itg.ti.com ([128.247.5.124]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id s0TLk5Qh016052 for ; Wed, 29 Jan 2014 15:46:05 -0600 Received: from DLEE71.ent.ti.com (dlee71.ent.ti.com [157.170.170.114]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id s0TLk5rb018408 for ; Wed, 29 Jan 2014 15:46:05 -0600 Received: from dflp32.itg.ti.com (10.64.6.15) by DLEE71.ent.ti.com (157.170.170.114) with Microsoft SMTP Server id 14.2.342.3; Wed, 29 Jan 2014 15:46:05 -0600 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp32.itg.ti.com (8.14.3/8.13.8) with ESMTP id s0TLk50f022265 for ; Wed, 29 Jan 2014 15:46:05 -0600 Date: Wed, 29 Jan 2014 16:46:04 -0500 From: Denys Dmytriyenko To: Message-ID: <20140129214604.GU6814@edge> References: <20140129172146.GS6814@edge> <1A80A2FD7F34484786E5DF71F3968B6941E82C1A@DLEE10.ent.ti.com> MIME-Version: 1.0 In-Reply-To: <1A80A2FD7F34484786E5DF71F3968B6941E82C1A@DLEE10.ent.ti.com> User-Agent: Mutt/1.5.20 (2009-06-14) Subject: Re: BeagleBone Black - linux-ti-staging and kernel modesetting X-BeenThere: meta-ti@yoctoproject.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Usage and development list for the meta-ti layer List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 Jan 2014 21:46:10 -0000 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Jonathan, Here's the reply from our DRM guy: > It should work, it looks to me like it is failing to probe for the tda998x > which is why the DRM driver is reporting no connectors/encoders. They will > also need to make some changes to the DTS to get the thing to probe. This > document has the necessary DT entries - refer to the DRM section - (it > wasn't there for the last 3.12 release so not an RTFM message). > http://processors.wiki.ti.com/index.php/Linux_Core_LCD_Controller_User_Guide#AM335x_LCDC_Display_Driver_.28fbdev.29 > > Darren > > > Date: Thu, 30 Jan 2014 00:08:56 +1100 > > From: Jonathan Liu > > To: meta-ti@yoctoproject.org > > Subject: [meta-ti] BeagleBone Black - linux-ti-staging and kernel modesetting > > > > Hi, > > > > I am using Yocto dora release with latest meta-ti git compiling for > > BeagleBone Black using systemd. > > For systemd to boot I had created linux-ti-staging_3.12.bbappend with > > do_configure_append() that > > appends the following options to kernel config: > > CONFIG_CGROUPS=y > > CONFIG_FHANDLE=y > > > > More kernel options to enable additional support for systemd can be > > found at: http://cgit.freedesktop.org/systemd/systemd/tree/README > > > > I have also added the following for graphics support: > > CONFIG_DRM=y > > CONFIG_DRM_KMS_HELPER=y > > CONFIG_DRM_GEM_CMA_HELPER=y > > CONFIG_DRM_KMS_CMA_HELPER=y > > CONFIG_DRM_I2C_NXP_TDA998X=y > > CONFIG_DRM_TILCDC=y > > > > The kernel mode switching (using xf86-video-modesetting) with HDMI > > output however is not working. > > > > The kernel log shows: > > tilcdc 4830e000.lcdc: no encoders/connectors found > > tilcdc 4830e000.lcdc: failed to initialize mode setting > > > > The expected result (from Arch Linux ARM) is: > > tilcdc 4830e000.fb: found TDA19988 > > tilcdc 4830e000.fb: fb0: frame buffer device > > tilcdc 4830e000.fb: registered panic notifier > > [drm] Initialized tilcdc 1.0.0 20121205 on minor 0 > > > > /sys/class/drm/card0/card0-HDMI-A-1 doesn't exist also. > > What am I missing to get KMS working with meta-ti linux-ti-staging for > > the BeagleBone Black? > > > > Regards, > > Jonathan