Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1270368

Re: [PATCH 0/2] Improve drm_of_component_probe() and move rockchip to use it

Show all headers | View raw

On Mon, Nov 16, 2015 at 05:07:17PM +0100, Heiko Stübner wrote:
> Hi Liviu,
> 
> Am Montag, 16. November 2015, 14:44:51 schrieb Liviu Dudau:
> > When I have introduced the drm_of_component_probe() function I have managed
> > to break rockchip's DRM driver as the compare_of() function had to match
> > both local crtc ports and remote encoder ones. As suggested by Russell
> > King, I have now enhanced the drm_of_component_probe() function to take two
> > comparison functions, and converted (again) rockchip driver to use it.
> > 
> > I would really like to get some Tested-By this time if possible from IMX,
> > Armada and Rockchip developers as I lack hardware to do that myself.
> > 
> > The only thing not implemented from Russell's suggestion list is the
> > renaming of the function into drm_kms_component_probe().
> 
>  with these patches applied I loose the display on my rk3288. A bit of dumb
> debug-output shows that the compare function does seem to do strange things:
> 
> [    1.020476] [drm] Initialized drm 1.1.0 20060810
> [    1.025943] drm_of_component_probe: adding port /vop@ff940000/port
> [    1.032225] drm_of_component_probe: adding port /vop@ff930000/port
> [    1.038421] drm_of_component_probe: adding encoder /hdmi@ff980000
> [    1.044535] drm_of_component_probe: adding encoder /edp@ff970000
> [    1.050562] drm_of_component_probe: adding encoder /hdmi@ff980000
> [    1.056663] drm_of_component_probe: adding encoder /edp@ff970000
> 
> ---- Columns:	dev->parent / dev	comparing	dev->parent->of_node	with	np
> 
> [    1.062683] compare_port: platform/ff980000.hdmi comparing NULL with /vop@ff940000/port
> [    1.071017] compare_port: platform/ff980000.hdmi comparing NULL with /vop@ff940000/port
> [    1.079024] compare_port: platform/ff930000.vop comparing NULL with /vop@ff940000/port
> [    1.087117] compare_port: platform/ff980000.hdmi comparing NULL with /vop@ff940000/port
> [    1.095130] compare_port: platform/ff930000.vop comparing NULL with /vop@ff940000/port
> [    1.103054] compare_port: platform/ff940000.vop comparing NULL with /vop@ff940000/port
> [    1.111553] panel_regulator: supplied by vcc33_sys
> 
> 
> I need to dig deeper to find out what's happening there, but maybe you
> already have some idea in the meantime :-)

Did I got the content of the compare_{port,encoder}() functions the wrong way around?

Best regards,
Liviu

> 
> 
> Thanks
> Heiko
> 

-- 
====================
| I would like to |
| fix the world,  |
| but they're not |
| giving me the   |
 \ source code!  /
  ---------------
    ¯\_(ツ)_/¯
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

[PATCH 0/2] Improve drm_of_component_probe() and move rockchip to use it Liviu Dudau <Liviu.Dudau@arm.com> - 2015-11-16 15:50 +0100
  [PATCH 2/2] drm/rockchip: Convert the probe function to the generic drm_of_component_probe() Liviu Dudau <Liviu.Dudau@arm.com> - 2015-11-16 15:50 +0100
    Re: [PATCH 2/2] drm/rockchip: Convert the probe function to the  generic drm_of_component_probe() Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-11-16 17:40 +0100
      Re: [PATCH 2/2] drm/rockchip: Convert the probe function to the  generic drm_of_component_probe() Liviu Dudau <Liviu.Dudau@arm.com> - 2015-11-16 18:00 +0100
        Re: [PATCH 2/2] drm/rockchip: Convert the probe function to the generic drm_of_component_probe() Heiko Stübner <heiko@sntech.de> - 2015-11-16 18:10 +0100
  Re: [PATCH 0/2] Improve drm_of_component_probe() and move rockchip to use it Heiko Stübner <heiko@sntech.de> - 2015-11-16 17:10 +0100
    Re: [PATCH 0/2] Improve drm_of_component_probe() and move rockchip  to use it Liviu Dudau <Liviu.Dudau@arm.com> - 2015-11-16 18:00 +0100

csiph-web