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Message-ID: <20200609165234.GM37466@atomide.com>
Date: Tue, 9 Jun 2020 09:52:34 -0700
From: Tony Lindgren <tony@...mide.com>
To: Tomi Valkeinen <tomi.valkeinen@...com>
Cc: linux-omap@...r.kernel.org, "Andrew F . Davis" <afd@...com>,
Dave Gerlach <d-gerlach@...com>,
Faiz Abbas <faiz_abbas@...com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Grygorii Strashko <grygorii.strashko@...com>,
Keerthy <j-keerthy@...com>, Nishanth Menon <nm@...com>,
Peter Ujfalusi <peter.ujfalusi@...com>,
Roger Quadros <rogerq@...com>, Suman Anna <s-anna@...com>,
Tero Kristo <t-kristo@...com>, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
dri-devel@...ts.freedesktop.org,
Laurent Pinchart <laurent.pinchart@...asonboard.com>
Subject: Re: [PATCH 1/5] drm/omap: Fix suspend resume regression after
platform data removal
* Tomi Valkeinen <tomi.valkeinen@...com> [200609 15:27]:
> On 09/06/2020 18:19, Tony Lindgren wrote:
> > Currently I'm only able to rmmod -f omapdrm, not sure if these issues might
> > be related.
>
> Hmm, I always use modules, and can unload omapdrm and drm fine. But there's
> a sequence that must be followed. However, the sequence starts with
> unloading omapdrm... What behavior you see with rmmod?
Hmm maybe it's output specific somehow?
I just tried again with the following with v5.7. I see the omapdrm
usage count issue happen at least on duovero, but don't seem to
currently get /dev/fb0 initialized on x15 with these:
modprobe omapdrm
#modprobe connector_hdmi # up to v5.6
modprobe display-connector # starting with v5.7-rc1
modprobe ti-tpd12s015 # beagle-x15
modprobe omapdss
# rmmod omapdrm
rmmod: ERROR: Module omapdrm is in use
# lsmod | grep omapdrm
omapdrm 65536 1
omapdss_base 16384 2 omapdrm,omapdss
drm_kms_helper 155648 3 omapdss_base,omapdrm,omapdss
drm 372736 7 ti_tpd12s015,omapdss_base,display_connector,omapdrm,omapdss,drm_kms_helper
On beagle-x15 I see these errors after modprobe:
DSS: OMAP DSS rev 6.1
omapdss_dss 58000000.dss: bound 58001000.dispc (ops dispc_component_ops [omapdss])
omapdss_dss 58000000.dss: bound 58040000.encoder (ops hdmi5_component_ops [omapdss])
[drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
omapdrm omapdrm.0: [drm] Cannot find any crtc or sizes
[drm] Initialized omapdrm 1.0.0 20110917 for omapdrm.0 on minor 0
omapdrm omapdrm.0: [drm] Cannot find any crtc or sizes
aic_dvdd_fixed: disabling
ldousb: disabling
Maybe I'm missing some related module on x15?
Regards,
Tony
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