From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH 19/19] drm/kms: don't export drm_mode_group_init_legacy_group Date: Thu, 23 Jan 2014 13:51:52 +0100 Message-ID: <20140123125152.GW9772@phenom.ffwll.local> References: <1390467164-951-1-git-send-email-daniel.vetter@ffwll.ch> <1390467164-951-20-git-send-email-daniel.vetter@ffwll.ch> <20140123100028.GQ9772@phenom.ffwll.local> <20140123100519.GU15937@n2100.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-wg0-f43.google.com (mail-wg0-f43.google.com [74.125.82.43]) by gabe.freedesktop.org (Postfix) with ESMTP id 2AB3CFBDEA for ; Thu, 23 Jan 2014 04:51:57 -0800 (PST) Received: by mail-wg0-f43.google.com with SMTP id y10so1381027wgg.34 for ; Thu, 23 Jan 2014 04:51:56 -0800 (PST) Content-Disposition: inline In-Reply-To: <20140123100519.GU15937@n2100.arm.linux.org.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org To: Russell King - ARM Linux Cc: Daniel Vetter , Greg Kroah-Hartman , DRI Development List-Id: dri-devel@lists.freedesktop.org On Thu, Jan 23, 2014 at 10:05:19AM +0000, Russell King - ARM Linux wrote: > On Thu, Jan 23, 2014 at 11:00:28AM +0100, Daniel Vetter wrote: > > On Thu, Jan 23, 2014 at 10:42:02AM +0100, David Herrmann wrote: > > > If there's ever hardware that truly supports sub-device hotplugging, > > > we can support that by adding a DRM-ClientCap like 3D modes. But as I > > > understand, the current hardware is still a single piece of hardware > > > which just might get probed via different buses and thus is not an > > > atomic entity. So the device is still hotplugged as a whole, we just > > > don't get the events through a single path. > > > > Yeah, if we ever want to allow hotplugging after driver setup that's > > massive work to do it right. Which is why I want to plug this hole here > > before someone sneaks in for real ;-) > > David did say at the kernel summit that he's not interested at all in > hotplugging the components of a DRM system, and his statement appeared > to be very clear in that regard that it was never going to happen. I think we eventually need to be able to hot-plug connectors (and maybe encoders) to support fancy dp1.2 output routing and multiple streams over the same cable. But I agree that hotplugging crtcs is insane and better done by hotplugging an entire drm device with that crtc. In any case not something to worry about right now. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch