From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Hilman Subject: Re: [RFC PATCH 1/1] drm/exynos: Move platform drivers registration to module init Date: Thu, 20 Nov 2014 10:22:54 -0800 Message-ID: <7hbno1spdt.fsf@deeprootsystems.com> References: <1416318821-7925-1-git-send-email-javier.martinez@collabora.co.uk> <7hh9xwxsev.fsf@deeprootsystems.com> <546CCAB8.9050402@collabora.co.uk> <7hppchsu29.fsf@deeprootsystems.com> <546E293D.9000300@collabora.co.uk> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <546E293D.9000300@collabora.co.uk> (Javier Martinez Canillas's message of "Thu, 20 Nov 2014 18:47:41 +0100") Sender: linux-samsung-soc-owner@vger.kernel.org To: Javier Martinez Canillas Cc: Vivek Gautam , Inki Dae , Andrzej Hajda , Krzysztof Kozlowski , "dri-devel@lists.freedesktop.org" , "linux-samsung-soc@vger.kernel.org" , Paolo Pisati , Vivek Gautam List-Id: dri-devel@lists.freedesktop.org Javier Martinez Canillas writes: > Hello, > > For completeness I'll comment what we talked with Kevin on IRC > since probably this is the same issue that Paolo is facing. > > On 11/20/2014 05:41 PM, Kevin Hilman wrote: >> Peach # setenv preboot "usb start; sleep 1"setenv bootargs >> console=tty1 console=ttySAC3,115200 debug earlyprintk rw >> root=/dev/mmcblk1p3 rootwait rootfstype=ext3 > > My kernel command line is almost the same with the difference that I'm using > clk_ignore_unused and I just checked that not passing that parameter, makes > linux-next to hang showing the same output log that Kevin reported. Ah! Good find. I confirm that adding clk_ignore_unused is getting me booting again, but of course that is just masking a problem, so I hope someone can shed light on which clock isn't being correctly managed. Might I also suggest that folks have their default command-line to *not* use clk_ignore_unused, since it's primary job is to workaround clock bugs. Kevin