[PATCH v2 0/3] drm: introduce bus_flags for pixel clock polarity

Philipp Zabel p.zabel at pengutronix.de
Wed Feb 24 10:28:46 UTC 2016

Am Dienstag, den 23.02.2016, 15:30 -0800 schrieb Stefan Agner:
> Any comments on this?

None other that I'm all in favor. consider patch 2
Acked-by: Philipp Zabel <p.zabel at pengutronix.de>

> Also added Manfred, Tomi and Boris to CC which previously attended in
> similar discussions.
> Previous discussions:
> http://thread.gmane.org/gmane.linux.kernel.api/12830
> http://thread.gmane.org/gmane.comp.video.dri.devel/96240/
> I think one of the main observation so far was that the pixel clock
> polarity is not a property of the mode, and therefor does not fit into
> the DRM_MODE_FLAG. This has been pointed out nicely by Russel:
> http://thread.gmane.org/gmane.comp.video.dri.devel/96240/focus=96260
> Embedded displays connected through parallel bus make use of the
> bus_formats field in drm_display_mode. This field defines what kind of
> bus format the display requires. This patch follows that idea and adds
> bus_flags. bus_flags can be used to define specific bus properties
> required by the display, such as pixel clock or data enable polarity...


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