Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1637556

Re: [PATCH v2 17/20] dt-bindings: display: sun4i: Add allwinner,tcon-channel property

From Rob Herring <robh@kernel.org>
Newsgroups linux.kernel
Subject Re: [PATCH v2 17/20] dt-bindings: display: sun4i: Add allwinner,tcon-channel property
Date 2017-05-08 18:30 +0200
Message-ID <tETHQ-6g8-17@gated-at.bofh.it> (permalink)
References <tD1gu-5a8-5@gated-at.bofh.it> <tD1gv-5a8-37@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


On Wed, May 03, 2017 at 01:59:54PM +0200, Maxime Ripard wrote:
> The Allwinner Timings Controller has two, mutually exclusive, channels.
> When the binding has been introduced, it was assumed that there would be
> only a single user per channel in the system.
> 
> While this is likely for the channel 0 which only connects to LCD displays,
> it turns out that the channel 1 can be connected to multiple controllers in
> the SoC (HDMI and TV encoders for example). And while the simultaneous use
> of HDMI and TV outputs cannot be achieved, switching from one to the other
> at runtime definitely sounds plausible.
> 
> Add an extra property, allwinner,tcon-channel, to specify for a given
> endpoint which TCON channel it is connected to, while falling back to the
> previous mechanism if that property is missing.
> 
> Acked-by: Chen-Yu Tsai <wens@csie.org>
> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
> ---
>  Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt | 11 ++++---
>  1 file changed, 7 insertions(+), 4 deletions(-)

Acked-by: Rob Herring <robh@kernel.org>

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread


Thread

[PATCH v2 17/20] dt-bindings: display: sun4i: Add allwinner,tcon-channel property Maxime Ripard <maxime.ripard@free-electrons.com> - 2017-05-03 14:10 +0200
  Re: [PATCH v2 17/20] dt-bindings: display: sun4i: Add  allwinner,tcon-channel property Rob Herring <robh@kernel.org> - 2017-05-08 18:30 +0200

csiph-web