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Re: [PATCH 00/23] Nokia N950 display support

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Hi,

On Tue, Mar 08, 2016 at 08:39:08PM +0200, Aaro Koskinen wrote:
> On Tue, Mar 08, 2016 at 05:39:32PM +0100, Sebastian Reichel wrote:
> > This series adds support for the Nokia N950 display.
> > Since the panel is using DSI command mode, it involves
> > adding support for manually updated displays to
> > omapdrm.
> 
> Works OK, but the picture seems to be upside down?

vertical, upside down is the native panel orientation.

> Also shouldn't the default orientation be landscape?

The N950 vendor kernel contains some code adding DSI
rotation support with half-frame update mechnism to
avoid tearing. It's quite complex and as far as I
understand it also error-prone. Tomi knows more about
that.

I have a simpler patch without the half-frame update
stuff, which works fine for me. I didn't notice any
tearing, but I haven't done any really fast image
updating. Also omapdrm has rotation support using
the DSS hardware, which also seems to work ok. I'm
still checking out what method is most suitable for
mainline.

But yeah, we probably want to change the default
rotation. Especially since touchscreen should have
the same default rotation as the screen. (TS is
horizontal, correct orientation for keyboard usage)

I will have a look at the (default-)rotation when
basic panel support has been ACKed.

-- Sebastian

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[PATCH 00/23] Nokia N950 display support Sebastian Reichel <sre@kernel.org> - 2016-03-08 18:00 +0100
  [PATCH 21/23] drm: omapdrm: panel-dsi-cm: block disable until update completed Sebastian Reichel <sre@kernel.org> - 2016-03-08 18:00 +0100
  [PATCH 14/23] drm: omapdrm: crtc: save framedone callback from dss Sebastian Reichel <sre@kernel.org> - 2016-03-08 18:00 +0100
  [PATCH 10/23] drm: omapdrm: crtc: detect manually updated displays Sebastian Reichel <sre@kernel.org> - 2016-03-08 18:00 +0100
  [PATCH 19/23] drm: omapdrm: panel-dsi-cm: improve DT support Sebastian Reichel <sre@kernel.org> - 2016-03-08 18:00 +0100
  [PATCH 01/23] ARM: dts: n9/n950: regulator configuration Sebastian Reichel <sre@kernel.org> - 2016-03-08 18:00 +0100
  [PATCH 07/23] drm: omapdrm: crtc: switch pending variable to atomic bitset Sebastian Reichel <sre@kernel.org> - 2016-03-08 18:00 +0100
  [PATCH 15/23] drm: omapdrm: crtc: add support for manual updated displays Sebastian Reichel <sre@kernel.org> - 2016-03-08 18:00 +0100
  [PATCH 11/23] include: video: omapdss: provide fifo threshold methods Sebastian Reichel <sre@kernel.org> - 2016-03-08 18:00 +0100
  [PATCH 08/23] drm: omapdrm: crtc: add enabled bit to state Sebastian Reichel <sre@kernel.org> - 2016-03-08 18:00 +0100
  [PATCH 16/23] drm: omapdrm: update manual displays on dirty ioctl Sebastian Reichel <sre@kernel.org> - 2016-03-08 18:00 +0100
  [PATCH 18/23] drm: omapdrm: panel-dsi-cm: use threaded irq handler Sebastian Reichel <sre@kernel.org> - 2016-03-08 18:00 +0100
  Re: [PATCH 00/23] Nokia N950 display support Aaro Koskinen <aaro.koskinen@iki.fi> - 2016-03-08 19:40 +0100
    Re: [PATCH 00/23] Nokia N950 display support Sebastian Reichel <sre@kernel.org> - 2016-03-08 21:50 +0100
      Re: [PATCH 00/23] Nokia N950 display support Tomi Valkeinen <tomi.valkeinen@ti.com> - 2016-03-09 08:20 +0100
        Re: [PATCH 00/23] Nokia N950 display support Sebastian Reichel <sre@kernel.org> - 2016-03-09 15:40 +0100
      Re: [PATCH 00/23] Nokia N950 display support Aaro Koskinen <aaro.koskinen@iki.fi> - 2016-03-09 22:10 +0100
  Re: [PATCH 00/23] Nokia N950 display support Tomi Valkeinen <tomi.valkeinen@ti.com> - 2016-03-09 17:30 +0100
    Re: [PATCH 00/23] Nokia N950 display support Emil Velikov <emil.l.velikov@gmail.com> - 2016-03-09 18:00 +0100
  Re: [PATCH 00/23] Nokia N950 display support Emil Velikov <emil.l.velikov@gmail.com> - 2016-03-09 17:30 +0100
    Re: [PATCH 00/23] Nokia N950 display support Sebastian Reichel <sre@kernel.org> - 2016-03-09 18:10 +0100

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