[v6,4/6] dt-bindings: display: hdmi-connector: Support DDC bus enable
diff mbox series

Message ID 20190527162237.18495-5-megous@megous.com
State Not Applicable
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Series
  • Add support for Orange Pi 3
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Commit Message

Ondřej Jirman May 27, 2019, 4:22 p.m. UTC
From: Ondrej Jirman <megous@megous.com>

Some Allwinner SoC using boards (Orange Pi 3 for example) need to enable
on-board voltage shifting logic for the DDC bus using a gpio to be able
to access DDC bus. Use ddc-en-gpios property on the hdmi-connector to
model this.

Add binding documentation for optional ddc-en-gpios property.

Signed-off-by: Ondrej Jirman <megous@megous.com>
---
 .../devicetree/bindings/display/connector/hdmi-connector.txt     | 1 +
 1 file changed, 1 insertion(+)

Comments

Rob Herring June 11, 2019, 9:52 p.m. UTC | #1
On Mon, 27 May 2019 18:22:35 +0200, megous@megous.com wrote:
> From: Ondrej Jirman <megous@megous.com>
> 
> Some Allwinner SoC using boards (Orange Pi 3 for example) need to enable
> on-board voltage shifting logic for the DDC bus using a gpio to be able
> to access DDC bus. Use ddc-en-gpios property on the hdmi-connector to
> model this.
> 
> Add binding documentation for optional ddc-en-gpios property.
> 
> Signed-off-by: Ondrej Jirman <megous@megous.com>
> ---
>  .../devicetree/bindings/display/connector/hdmi-connector.txt     | 1 +
>  1 file changed, 1 insertion(+)
> 

Please add Acked-by/Reviewed-by tags when posting new versions. However,
there's no need to repost patches *only* to add the tags. The upstream
maintainer will do that for acks received on the version they apply.

If a tag was not added on purpose, please state why and what changed.
Ondřej Jirman June 11, 2019, 10:25 p.m. UTC | #2
On Tue, Jun 11, 2019 at 03:52:06PM -0600, Rob Herring wrote:
> On Mon, 27 May 2019 18:22:35 +0200, megous@megous.com wrote:
> > From: Ondrej Jirman <megous@megous.com>
> > 
> > Some Allwinner SoC using boards (Orange Pi 3 for example) need to enable
> > on-board voltage shifting logic for the DDC bus using a gpio to be able
> > to access DDC bus. Use ddc-en-gpios property on the hdmi-connector to
> > model this.
> > 
> > Add binding documentation for optional ddc-en-gpios property.
> > 
> > Signed-off-by: Ondrej Jirman <megous@megous.com>
> > ---
> >  .../devicetree/bindings/display/connector/hdmi-connector.txt     | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> 
> Please add Acked-by/Reviewed-by tags when posting new versions. However,
> there's no need to repost patches *only* to add the tags. The upstream
> maintainer will do that for acks received on the version they apply.
> 
> If a tag was not added on purpose, please state why and what changed.

Sorry, it was some mistake. Thanks for the note.

regards,
	Ondrej

> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

Patch
diff mbox series

diff --git a/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt b/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt
index 508aee461e0d..aeb07c4bd703 100644
--- a/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt
+++ b/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt
@@ -9,6 +9,7 @@  Optional properties:
 - label: a symbolic name for the connector
 - hpd-gpios: HPD GPIO number
 - ddc-i2c-bus: phandle link to the I2C controller used for DDC EDID probing
+- ddc-en-gpios: signal to enable DDC bus
 
 Required nodes:
 - Video port for HDMI input