From: Jani Nikula <jani.nikula@linux.intel.com>
To: Sebastian Reichel <sre@kernel.org>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>,
Tony Lindgren <tony@atomide.com>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
Tomi Valkeinen <tomi.valkeinen@ti.com>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
linux-omap@vger.kernel.org
Subject: Re: [PATCH 02/23] ARM: dts: n950: add display support
Date: Thu, 24 Mar 2016 12:03:01 +0200 [thread overview]
Message-ID: <87h9fwdwh6.fsf@intel.com> (raw)
In-Reply-To: <20160323140105.GA31703@earth>
On Wed, 23 Mar 2016, Sebastian Reichel <sre@kernel.org> wrote:
> On Wed, Mar 23, 2016 at 02:40:53PM +0200, Jani Nikula wrote:
>> On Thu, 17 Mar 2016, Sebastian Reichel <sre@kernel.org> wrote:
>> > On Thu, Mar 17, 2016 at 02:14:26PM +0200, Laurent Pinchart wrote:
>> >> [...]
>> >> > +
>> >> > + /* panel is 480x464 with top and bottom 5 lines not visible */
>> >>
>> >> I assume you mean 480x864 ?
>> >
>> > Yes, nice catch. Basically the screen is 480x864, but only
>> > 480x854 are visible.
>>
>> It's been a while, but I thought the full 480x864 was actually usable
>> and visible.
>
> I tried that first and the first few lines were missing. The stock
> kernel also uses only 854px:
>
> https://github.com/nemomobile/kernel-adaptation-n950-n9/blob/mer-n9-2.6.32-20121301/arch/arm/mach-omap2/board-rm680-video.c
>
> (search for partial_area)
Heh, I was reminded by old colleagues that it was actually my commit
back in the day that changed the resolution 864->854 in the stock
kernel. And that I did it reluctantly, because there really was no
technical reason to do the change.
I don't really care all that much either way anymore. I just thought
you'd like to get those 4800 pixels back that you've been missing all
these years. Plus 864 was nicer to deal with because it has 2^5 as a
prime factor while 854 only has 2.
BR,
Jani.
--
Jani Nikula, Intel Open Source Technology Center
_______________________________________________
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WARNING: multiple messages have this Message-ID (diff)
From: Jani Nikula <jani.nikula@linux.intel.com>
To: Sebastian Reichel <sre@kernel.org>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Aaro Koskinen <aaro.koskinen@iki.fi>,
Tony Lindgren <tony@atomide.com>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
Tomi Valkeinen <tomi.valkeinen@ti.com>,
linux-omap@vger.kernel.org
Subject: Re: [PATCH 02/23] ARM: dts: n950: add display support
Date: Thu, 24 Mar 2016 12:03:01 +0200 [thread overview]
Message-ID: <87h9fwdwh6.fsf@intel.com> (raw)
In-Reply-To: <20160323140105.GA31703@earth>
On Wed, 23 Mar 2016, Sebastian Reichel <sre@kernel.org> wrote:
> On Wed, Mar 23, 2016 at 02:40:53PM +0200, Jani Nikula wrote:
>> On Thu, 17 Mar 2016, Sebastian Reichel <sre@kernel.org> wrote:
>> > On Thu, Mar 17, 2016 at 02:14:26PM +0200, Laurent Pinchart wrote:
>> >> [...]
>> >> > +
>> >> > + /* panel is 480x464 with top and bottom 5 lines not visible */
>> >>
>> >> I assume you mean 480x864 ?
>> >
>> > Yes, nice catch. Basically the screen is 480x864, but only
>> > 480x854 are visible.
>>
>> It's been a while, but I thought the full 480x864 was actually usable
>> and visible.
>
> I tried that first and the first few lines were missing. The stock
> kernel also uses only 854px:
>
> https://github.com/nemomobile/kernel-adaptation-n950-n9/blob/mer-n9-2.6.32-20121301/arch/arm/mach-omap2/board-rm680-video.c
>
> (search for partial_area)
Heh, I was reminded by old colleagues that it was actually my commit
back in the day that changed the resolution 864->854 in the stock
kernel. And that I did it reluctantly, because there really was no
technical reason to do the change.
I don't really care all that much either way anymore. I just thought
you'd like to get those 4800 pixels back that you've been missing all
these years. Plus 864 was nicer to deal with because it has 2^5 as a
prime factor while 854 only has 2.
BR,
Jani.
--
Jani Nikula, Intel Open Source Technology Center
next prev parent reply other threads:[~2016-03-24 10:03 UTC|newest]
Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-08 16:39 [PATCH 00/23] Nokia N950 display support Sebastian Reichel
2016-03-08 16:39 ` [PATCH 01/23] ARM: dts: n9/n950: regulator configuration Sebastian Reichel
2016-03-08 16:39 ` [PATCH 02/23] ARM: dts: n950: add display support Sebastian Reichel
2016-03-17 12:14 ` Laurent Pinchart
2016-03-17 12:14 ` Laurent Pinchart
2016-03-17 17:49 ` Sebastian Reichel
2016-03-23 12:40 ` Jani Nikula
2016-03-23 12:40 ` Jani Nikula
2016-03-23 14:01 ` Sebastian Reichel
2016-03-24 10:03 ` Jani Nikula [this message]
2016-03-24 10:03 ` Jani Nikula
2016-03-24 14:26 ` Sebastian Reichel
2016-03-24 15:11 ` Jani Nikula
2016-03-24 15:11 ` Jani Nikula
2016-03-25 0:15 ` Sebastian Reichel
2016-04-12 20:51 ` Tony Lindgren
2016-06-21 11:01 ` Tony Lindgren
2016-06-24 0:30 ` Sebastian Reichel
2016-03-08 16:39 ` [PATCH 03/23] drm: omapdrm: dss: reset dsi module during initialization Sebastian Reichel
2016-05-10 12:07 ` Tomi Valkeinen
2016-05-10 12:07 ` Tomi Valkeinen
2016-03-08 16:39 ` [PATCH 04/23] drm: omapdrm: add DSI mapping Sebastian Reichel
2016-03-26 9:09 ` Laurent Pinchart
2016-03-26 9:09 ` Laurent Pinchart
2016-05-10 12:08 ` Tomi Valkeinen
2016-05-10 12:08 ` Tomi Valkeinen
2016-03-08 16:39 ` [PATCH 05/23] Revert "drm: omapdrm: Remove manual update display support" Sebastian Reichel
2016-03-08 16:39 ` [PATCH 06/23] drm: omapdrm: wait for pending operations before updating plane Sebastian Reichel
2016-03-26 9:20 ` Laurent Pinchart
2016-03-26 9:20 ` Laurent Pinchart
2016-03-26 15:52 ` Sebastian Reichel
2016-03-08 16:39 ` [PATCH 07/23] drm: omapdrm: crtc: switch pending variable to atomic bitset Sebastian Reichel
2016-03-26 16:30 ` Laurent Pinchart
2016-03-08 16:39 ` [PATCH 08/23] drm: omapdrm: crtc: add enabled bit to state Sebastian Reichel
2016-03-26 16:35 ` Laurent Pinchart
2016-03-08 16:39 ` [PATCH 09/23] drm: omapdrm: dss: method to get stallmode from lcd config Sebastian Reichel
2016-03-08 16:39 ` [PATCH 10/23] drm: omapdrm: crtc: detect manually updated displays Sebastian Reichel
2016-03-26 16:51 ` Laurent Pinchart
2016-03-08 16:39 ` [PATCH 11/23] include: video: omapdss: provide fifo threshold methods Sebastian Reichel
2016-03-26 16:44 ` Laurent Pinchart
2016-03-08 16:39 ` [PATCH 12/23] drm: omapdrm: plane: update fifo size on atomic update Sebastian Reichel
2016-12-13 17:35 ` Laurent Pinchart
2016-12-13 17:35 ` Laurent Pinchart
2016-12-14 8:43 ` Tomi Valkeinen
2016-12-14 8:43 ` Tomi Valkeinen
2016-12-14 9:10 ` Laurent Pinchart
2016-12-14 9:10 ` Laurent Pinchart
2016-12-14 9:14 ` Tomi Valkeinen
2016-12-14 9:14 ` Tomi Valkeinen
2016-12-14 14:03 ` Sebastian Reichel
2016-12-14 21:36 ` Laurent Pinchart
2016-12-15 8:40 ` Tomi Valkeinen
2016-12-15 8:40 ` Tomi Valkeinen
2016-03-08 16:39 ` [PATCH 13/23] drm: omapdrm: crtc: update plane fifos on lcd config change Sebastian Reichel
2016-03-26 17:00 ` Laurent Pinchart
2016-03-26 17:00 ` Laurent Pinchart
2016-03-08 16:39 ` [PATCH 14/23] drm: omapdrm: crtc: save framedone callback from dss Sebastian Reichel
2016-03-26 17:03 ` Laurent Pinchart
2016-03-26 17:03 ` Laurent Pinchart
2016-03-08 16:39 ` [PATCH 15/23] drm: omapdrm: crtc: add support for manual updated displays Sebastian Reichel
2016-03-08 16:39 ` [PATCH 16/23] drm: omapdrm: update manual displays on dirty ioctl Sebastian Reichel
2016-03-08 16:39 ` [PATCH 17/23] drm: omapdrm: panel-dsi-cm: add regulator support Sebastian Reichel
2016-03-08 16:39 ` [PATCH 18/23] drm: omapdrm: panel-dsi-cm: use threaded irq handler Sebastian Reichel
2016-05-10 12:19 ` Tomi Valkeinen
2016-05-10 12:19 ` Tomi Valkeinen
2016-03-08 16:39 ` [PATCH 19/23] drm: omapdrm: panel-dsi-cm: improve DT support Sebastian Reichel
2016-03-08 16:39 ` [PATCH 20/23] drm: omapdrm: panel-dsi-cm: add offset support Sebastian Reichel
2016-03-08 16:39 ` [PATCH 21/23] drm: omapdrm: panel-dsi-cm: block disable until update completed Sebastian Reichel
2016-03-08 16:39 ` [PATCH 22/23] drm: omapdrm: panel-dsi-cm: ratelimit debug output in update path Sebastian Reichel
2016-03-08 16:39 ` [PATCH 23/23] drm: omapdrm: panel-dsi-cm: provide timings methods for omapdrm Sebastian Reichel
2016-03-08 18:39 ` [PATCH 00/23] Nokia N950 display support Aaro Koskinen
2016-03-08 20:45 ` Sebastian Reichel
2016-03-09 7:10 ` Tomi Valkeinen
2016-03-09 7:10 ` Tomi Valkeinen
2016-03-09 14:33 ` Sebastian Reichel
2016-03-09 21:02 ` Aaro Koskinen
2016-03-09 16:19 ` Emil Velikov
2016-03-09 16:24 ` Tomi Valkeinen
2016-03-09 16:24 ` Tomi Valkeinen
2016-03-09 16:58 ` Emil Velikov
2016-03-09 16:58 ` Emil Velikov
2016-03-09 17:09 ` Sebastian Reichel
2016-03-28 12:34 ` Emil Velikov
2016-03-28 12:34 ` Emil Velikov
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