From: Thierry Reding <thierry.reding@gmail.com>
To: "Andreas Färber" <afaerber@suse.de>
Cc: "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-samsung-soc@vger.kernel.org"
<linux-samsung-soc@vger.kernel.org>,
Sean Paul <seanpaul@google.com>,
Daniel Vetter <daniel.vetter@ffwll.ch>,
sunil joshi <joshi@samsung.com>,
"dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>,
Doug Anderson <dianders@chromium.org>,
Javier Martinez Canillas <javier.martinez@collabora.co.uk>,
Ajay kumar <ajaynumb@gmail.com>,
Prashanth G <prashanth.g@samsung.com>,
Ajay Kumar <ajaykumar.rs@samsung.com>
Subject: Re: [PATCH V6 0/8] drm/exynos: few patches to enhance bridge chip support
Date: Thu, 31 Jul 2014 12:23:49 +0200 [thread overview]
Message-ID: <20140731102348.GC7458@ulmo> (raw)
In-Reply-To: <53DA0513.3080602@suse.de>
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On Thu, Jul 31, 2014 at 10:57:55AM +0200, Andreas Färber wrote:
> Am 31.07.2014 10:38, schrieb Ajay kumar:
[...]
> > With just the spring-bridge.v6 branch of your own tree, I am able to see
> > bootup logo on Skate(a variant of spring which also contains ps8622).
> > I have tried both exynos_defconfig and multi_v7_defconfig.
> > I enable DRM, EXYNOS DRM, BRIDGE CHIPS, IOMMU, EXYNOS IOMMU
> > in configs.
> >
> > Even in your bootlogs, I can see DP getting probed.
> > And, you say backlight is also visible. That means entire display
> > path should be fine. Its just that you should start writing to the buffer.
> > Have you enabled boot logos?
>
> Let me clarify: U-Boot uses the display [*], so it is powered and I see
> penguins initially. Then, when drm gets initialized, the screen goes
> black and no longer prints kernel messages or systemd output or X11 gdm
> login screen.
Who's displaying the penguins? If you're referring to the Linux boot
logo then it shouldn't be displayed at all until after DRM has been
initialized (and the framebuffer console been set up).
> Since drm stuff is the only variance here and it works with simplefb,
> surely something prints to some buffer!
If you have something like simplefb enabled in addition to a DRM driver,
then perhaps the DRM driver isn't properly taking over the framebuffer
console.
Thierry
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next prev parent reply other threads:[~2014-07-31 10:23 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-25 19:22 [PATCH V6 0/8] drm/exynos: few patches to enhance bridge chip support Ajay Kumar
2014-07-25 19:22 ` [PATCH V6 1/8] drm/panel: Add prepare, unprepare and get_modes routines Ajay Kumar
2014-07-30 10:00 ` Thierry Reding
2014-07-30 10:29 ` Ajay kumar
2014-07-25 19:22 ` [PATCH V6 2/8] drm/panel: Add support for prepare and unprepare routines Ajay Kumar
2014-07-30 10:32 ` Thierry Reding
2014-07-30 11:09 ` Ajay kumar
2014-07-25 19:22 ` [PATCH V6 3/8] drm/panel: simple: Add support for auo_b133htn01 panel Ajay Kumar
2014-07-30 10:51 ` Thierry Reding
2014-07-30 11:32 ` Ajay kumar
2014-07-30 13:30 ` Thierry Reding
2014-07-30 13:42 ` Ajay kumar
2014-07-25 19:22 ` [PATCH V6 4/8] drm/exynos: Move DP setup into commit() Ajay Kumar
2014-07-30 10:52 ` Thierry Reding
2014-07-30 12:05 ` Ajay kumar
2014-07-25 19:22 ` [PATCH V6 5/8] drm/exynos: dp: Modify driver to support drm_panel Ajay Kumar
2014-07-30 10:58 ` Thierry Reding
2014-07-25 19:22 ` [PATCH V6 6/8] drm/bridge: Modify drm_bridge core to support driver model Ajay Kumar
2014-07-30 11:19 ` Thierry Reding
2014-07-30 14:31 ` Ajay kumar
2014-07-30 15:08 ` Thierry Reding
2014-07-30 16:03 ` Ajay kumar
2014-07-31 10:58 ` Thierry Reding
2014-08-22 23:33 ` Javier Martinez Canillas
2014-08-25 6:11 ` Ajay kumar
2014-08-25 10:10 ` Javier Martinez Canillas
2014-09-15 17:37 ` Laurent Pinchart
2014-09-17 9:07 ` Ajay kumar
2014-09-17 9:22 ` Dave Airlie
2014-09-17 9:27 ` Laurent Pinchart
2014-09-17 13:15 ` Ajay kumar
2014-09-22 7:40 ` Thierry Reding
2014-09-23 0:29 ` Laurent Pinchart
2014-09-23 5:36 ` Thierry Reding
2014-07-25 19:22 ` [PATCH V2 7/8] drm/bridge: Add i2c based driver for ptn3460 bridge Ajay Kumar
2014-07-30 12:05 ` Thierry Reding
2014-07-30 15:16 ` Ajay kumar
2014-07-30 15:40 ` Thierry Reding
2014-07-30 16:14 ` Ajay kumar
2014-07-31 11:21 ` Thierry Reding
2014-07-25 19:22 ` [PATCH V6 8/8] drm/bridge: Add i2c based driver for ps8622/ps8625 bridge Ajay Kumar
2014-07-29 11:29 ` Andreas Färber
2014-07-30 6:27 ` Ajay kumar
2014-07-30 13:11 ` Thierry Reding
2014-07-27 18:22 ` [PATCH V6 0/8] drm/exynos: few patches to enhance bridge chip support Andreas Färber
2014-07-28 6:13 ` Ajay kumar
2014-07-29 11:21 ` Andreas Färber
2014-07-29 11:36 ` Thierry Reding
2014-07-29 11:42 ` Andreas Färber
2014-07-29 11:47 ` Thierry Reding
2014-07-30 6:24 ` Ajay kumar
2014-07-30 9:40 ` Thierry Reding
2014-07-30 10:24 ` Ajay kumar
2014-07-30 13:16 ` Thierry Reding
2014-09-17 9:53 ` Laurent Pinchart
2014-09-17 10:13 ` Ajay kumar
2014-09-18 9:54 ` Laurent Pinchart
2014-07-29 11:43 ` Thierry Reding
2014-07-30 6:21 ` Ajay kumar
2014-07-30 19:32 ` Andreas Färber
2014-07-31 8:38 ` Ajay kumar
2014-07-31 8:57 ` Andreas Färber
2014-07-31 10:07 ` Ajay kumar
2014-07-31 10:23 ` Thierry Reding [this message]
2014-07-31 10:28 ` Andreas Färber
2014-07-31 14:22 ` Andreas Färber
2014-08-01 7:02 ` Ajay kumar
2014-08-01 12:13 ` Andreas Färber
2014-08-01 14:57 ` Andreas Färber
2014-07-30 9:56 ` Thierry Reding
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