[PATCH v2 00/50] drm/omap: Replace custom display drivers with drm_bridge and drm_panel

[Laurent Pinchart]

Hi Tomi,

On Tue, Aug 27, 2019 at 12:32:46PM +0300, Tomi Valkeinen wrote:
> On 27/08/2019 12:29, Laurent Pinchart wrote:
> > On Tue, Aug 27, 2019 at 10:34:59AM +0300, Tomi Valkeinen wrote:
> >> On 26/08/2019 16:51, Laurent Pinchart wrote:
> >>> On Mon, Aug 26, 2019 at 03:15:23PM +0300, Tomi Valkeinen wrote:
> >>>> On 20/08/2019 04:16, Laurent Pinchart wrote:
> >>>>
> >>>>> The patches can be found at
> >>>>>
> >>>>> 	git://linuxtv.org/pinchartl/media.git omapdrm/bridge/devel
> >>>>
> >>>> I took your branch, booted AM5 EVM (I see you had the hack dts patch in your branch), and:
> >>>>
> >>>> insmod nfs/work/linux/drivers/media/cec/cec.ko
> >>>> insmod nfs/work/linux/drivers/video/fbdev/core/cfbcopyarea.ko
> >>>> insmod nfs/work/linux/drivers/video/fbdev/core/cfbimgblt.ko
> >>>> insmod nfs/work/linux/drivers/video/fbdev/core/cfbfillrect.ko
> >>>> insmod nfs/work/linux/drivers/gpu/drm/drm_panel_orientation_quirks.ko
> >>>> insmod nfs/work/linux/drivers/gpu/drm/drm.ko
> >>>> insmod nfs/work/linux/drivers/gpu/drm/drm_kms_helper.ko
> >>>> insmod nfs/work/linux/drivers/gpu/drm/bridge/ti-tfp410.ko
> >>>> insmod nfs/work/linux/drivers/gpu/drm/bridge/sii902x.ko
> >>>> insmod nfs/work/linux/drivers/gpu/drm/bridge/tc358767.ko
> >>>> insmod nfs/work/linux/drivers/gpu/drm/panel/panel-simple.ko
> >>>> [   25.487002] panel-simple display: display supply power not found, using dummy regulator
> >>>> [   25.495241] ------------[ cut here ]------------
> >>>> [   25.499900] WARNING: CPU: 0 PID: 303 at drivers/gpu/drm/panel/panel-simple.c:378 panel_simple_probe+0x34c/0x3b4 [panel_simple]
> >>>
> >>> How am I expected to sneak patches in if you test them ? :-)
> >>>
> >>> This has been introduced by a recent rebase, and I've only tested the
> >>> series on the pandaboard since then. It looks like the problem comes
> >>> from
> >>>
> >>> commit b8a2948fa2b3a5a6da67fd57aa01c7318d795125
> >>> Author: Sean Paul <seanpaul at chromium.org>
> >>> Date:   Thu Jul 11 13:34:53 2019 -0700
> >>>
> >>>       drm/panel: simple: Add ability to override typical timing
> >>>
> >>> which breaks our out-of-tree DT. As a short term fix I can simply drop
> >>> the panel timings from DT, but I think this issue can affect more
> >>
> >> So just removing the timings from the panel's node should be enough?
> >> Still crashing for me, although the panel warning goes away.
> > 
> > My bad, you also need the following patch that I will include in v3.
> 
> Thanks, but I guess I need something more:
> 
> drivers/gpu/drm/panel/panel-simple.c:2384:3: error: ‘const struct 
> panel_desc’ has no member named ‘connector_type’
>    .connector_type = DRM_MODE_CONNECTOR_DPI,

Yes, you also need to apply this on top of v3 which I haven't posted yet
:-) You can just fetch my omapdrm/bridge/devel branch, I've pushed the
latest version there.

-- 
Regards,

Laurent Pinchart