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Re: [linux-sunxi] [PATCH 04/13] drm/sun4i: return only planes for layers created

From Chen-Yu Tsai <wens@csie.org>
Newsgroups linux.kernel
Subject Re: [linux-sunxi] [PATCH 04/13] drm/sun4i: return only planes for layers created
Date 2017-05-05 05:10 +0200
Message-ID <tDBMZ-4hE-3@gated-at.bofh.it> (permalink)
References <tDnqF-2R5-3@gated-at.bofh.it> <tDnqF-2R5-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thu, May 4, 2017 at 7:41 PM, Icenowy Zheng <icenowy@aosc.io> wrote:
> As we are going to add support for the Allwinner DE2 Mixer in sun4i-drm
> driver, we will finally have two types of layers.
>
> Each layer is bound to a drm_plane that is CRTC-specific, so we create
> them when initializing CRTC (calling sun4i_layers_init, which will be
> generalized in next patch). The drm_plane's will be used when creating
> CRTC, but the CRTC initialization code do not care other properties of
> the layer, so we let the sun4i_layers_init function return drm_plane's
> only.
>
> As we have no need to trace the layers after the CRTC is properly
> created, we drop the layers pointer in sun4i_crtc struct.
>
> Doing these things makes the CRTC code independent to the type of layer

Doing this uncouples the CRTC code from the type of layer.

> (the sun4i_layers_init function name is still hardcoded and will be
> changed in the next patch), so that we can finally gain support for the
> mixer in DE2, which will has different layers.

... which has ...

>
> Signed-off-by: Icenowy Zheng <icenowy@aosc.io>

Otherwise,

Reviewed-by: Chen-Yu Tsai <wens@csie.org>

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Thread

[PATCH 01/13] dt-bindings: add binding for the Allwinner DE2 CCU Icenowy Zheng <icenowy@aosc.io> - 2017-05-04 13:50 +0200
  [PATCH 04/13] drm/sun4i: return only planes for layers created Icenowy Zheng <icenowy@aosc.io> - 2017-05-04 13:50 +0200
    Re: [linux-sunxi] [PATCH 04/13] drm/sun4i: return only planes for  layers created Chen-Yu Tsai <wens@csie.org> - 2017-05-05 05:10 +0200
  [PATCH 02/13] clk: sunxi-ng: add support for DE2 CCU Icenowy Zheng <icenowy@aosc.io> - 2017-05-04 13:50 +0200
  [PATCH 03/13] dt-bindings: add bindings for DE2 on V3s SoC Icenowy Zheng <icenowy@aosc.io> - 2017-05-04 13:50 +0200

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