@@ -0,0 +1,28 @@+HDMI Connector+=======++Required properties:+- compatible: "hdmi-connector"+- type: the HDMI connector type: "a", "b", "c", "d" or "e"++Optional properties:+- label: a symbolic name for the connector++Required nodes:+- Video port for HDMI input++Example+-------++hdmi0: connector@1 {+ compatible = "hdmi-connector";+ label = "hdmi";++ type = "a";++ port {+ hdmi_connector_in: endpoint {+ remote-endpoint = <&tpd12s015_out>;+ };+ };+};
@@ -0,0 +1,28 @@+HDMI Connector+=======++Required properties:+- compatible: "hdmi-connector"+- type: the HDMI connector type: "a", "b", "c", "d" or "e"++Optional properties:+- label: a symbolic name for the connector++Required nodes:+- Video port for HDMI input
Geert's comment also applies to all other connector types. These can be
input connectors, too.
regards
Philipp
@@ -0,0 +1,28 @@+HDMI Connector+=======++Required properties:+- compatible: "hdmi-connector"+- type: the HDMI connector type: "a", "b", "c", "d" or "e"++Optional properties:+- label: a symbolic name for the connector++Required nodes:+- Video port for HDMI input
Geert's comment also applies to all other connector types. These can be
input connectors, too.
We might not need to define all the properties required by input connectors
now, but we need to make sure that future extensions will be backward-
compatible. I don't see a problem in making the connector DT bindings depend
on the direction as long as the direction is specified in the DT node, either
explicitly or implicitly.
An obvious solution would be to have separate "hdmi-input-connector" and
"hdmi-output-connector" compatible strings but I don't like that, as there's
no difference in the HDMI connector itself, only in the usage.
We could also add a "direction" property (possibly later, with a default value
of "output" in that case), or rely on the link direction, but in the latter
case that would require reaching an agreement in the current link directions
debate.
--
Regards,
Laurent Pinchart
@@ -0,0 +1,28 @@+HDMI Connector+=======++Required properties:+- compatible: "hdmi-connector"+- type: the HDMI connector type: "a", "b", "c", "d" or "e"++Optional properties:+- label: a symbolic name for the connector++Required nodes:+- Video port for HDMI input
Geert's comment also applies to all other connector types. These can be
input connectors, too.
We might not need to define all the properties required by input connectors
now, but we need to make sure that future extensions will be backward-
compatible. I don't see a problem in making the connector DT bindings depend
on the direction as long as the direction is specified in the DT node, either
explicitly or implicitly.
An obvious solution would be to have separate "hdmi-input-connector" and
"hdmi-output-connector" compatible strings but I don't like that, as there's
no difference in the HDMI connector itself, only in the usage.
I don't think this is necessary, either. I just meant the wording for
the video port should leave the direction unspecified. I imagine
somebody somewhere will connect a HDMI connector to a mux so that it can
be either input or output.
We could also add a "direction" property (possibly later, with a default value
of "output" in that case), or rely on the link direction, but in the latter
case that would require reaching an agreement in the current link directions
debate.
If we add a direction property, I think it should be on the ports.
regards
Philipp
From: Tomi Valkeinen <hidden> Date: 2014-03-19 08:11:30
On 19/03/14 10:03, Philipp Zabel wrote:
quoted
quoted
Geert's comment also applies to all other connector types. These can be
input connectors, too.
We might not need to define all the properties required by input connectors
now, but we need to make sure that future extensions will be backward-
compatible. I don't see a problem in making the connector DT bindings depend
on the direction as long as the direction is specified in the DT node, either
explicitly or implicitly.
An obvious solution would be to have separate "hdmi-input-connector" and
"hdmi-output-connector" compatible strings but I don't like that, as there's
no difference in the HDMI connector itself, only in the usage.
I don't think this is necessary, either. I just meant the wording for
the video port should leave the direction unspecified. I imagine
somebody somewhere will connect a HDMI connector to a mux so that it can
be either input or output.
I don't disagree, but I think it's better to change the wording when
someone has a working setup and can try it. These bindings have been
designed only with video output in mind, and I'd rather have them
constrained to that purpose for now.
One reason for keeping them output only is that when someone wants to
use these for capture, he needs to change the binding docs, and it'll
gather more attention than just using the bindings in a board's dts.
That said, we should take care to make the bindings so that nothing
prevents their use for capture (which I think they allow in their
current form).
Tomi
From: Philipp Zabel <p.zabel@pengutronix.de> Date: 2014-03-19 08:22:40
Am Mittwoch, den 19.03.2014, 10:11 +0200 schrieb Tomi Valkeinen:
On 19/03/14 10:03, Philipp Zabel wrote:
quoted
quoted
quoted
Geert's comment also applies to all other connector types. These can be
input connectors, too.
We might not need to define all the properties required by input connectors
now, but we need to make sure that future extensions will be backward-
compatible. I don't see a problem in making the connector DT bindings depend
on the direction as long as the direction is specified in the DT node, either
explicitly or implicitly.
An obvious solution would be to have separate "hdmi-input-connector" and
"hdmi-output-connector" compatible strings but I don't like that, as there's
no difference in the HDMI connector itself, only in the usage.
I don't think this is necessary, either. I just meant the wording for
the video port should leave the direction unspecified. I imagine
somebody somewhere will connect a HDMI connector to a mux so that it can
be either input or output.
I don't disagree, but I think it's better to change the wording when
someone has a working setup and can try it. These bindings have been
designed only with video output in mind, and I'd rather have them
constrained to that purpose for now.
One reason for keeping them output only is that when someone wants to
use these for capture, he needs to change the binding docs, and it'll
gather more attention than just using the bindings in a board's dts.
That said, we should take care to make the bindings so that nothing
prevents their use for capture (which I think they allow in their
current form).
I don't disagree, either. I have no objection against the bindings
themselves.
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
regards
Philipp