[v5,6/7] dt-bindings: Add ANX6345 DP/eDP transmitter binding
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Message ID 20191104110613.C3BA468C4E@verein.lst.de
State New
Headers show
Series
  • Add anx6345 DP/eDP bridge for Olimex Teres-I
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Commit Message

Torsten Duwe Oct. 29, 2019, 12:16 p.m. UTC
The anx6345 is an ultra-low power DisplayPort/eDP transmitter designed
for portable devices.

Add a binding document for it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Torsten Duwe <duwe@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 .../bindings/display/bridge/anx6345.yaml           | 102 ++++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/anx6345.yaml

Comments

Maxime Ripard Nov. 5, 2019, 10:43 a.m. UTC | #1
On Tue, Oct 29, 2019 at 01:16:57PM +0100, Torsten Duwe wrote:
> The anx6345 is an ultra-low power DisplayPort/eDP transmitter designed
> for portable devices.
>
> Add a binding document for it.
>
> Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
> Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
> Reviewed-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Torsten Duwe <duwe@suse.de>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Applied, thanks

(still, there's one comment below that can be addressed in a
subsequent patch).

> ---
>  .../bindings/display/bridge/anx6345.yaml           | 102 ++++++++++++++++++++++
>  1 file changed, 102 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/bridge/anx6345.yaml
>
> diff --git a/Documentation/devicetree/bindings/display/bridge/anx6345.yaml b/Documentation/devicetree/bindings/display/bridge/anx6345.yaml
> new file mode 100644
> index 000000000000..094e8e8a5faa
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/anx6345.yaml
> @@ -0,0 +1,102 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/bridge/anx6345.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Analogix ANX6345 eDP Transmitter Device Tree Bindings
> +
> +maintainers:
> +  - Torsten Duwe <duwe@lst.de>
> +
> +description: |
> +  The ANX6345 is an ultra-low power Full-HD eDP transmitter designed for
> +  portable devices.
> +
> +properties:
> +  compatible:
> +    const: analogix,anx6345
> +
> +  reg:
> +    maxItems: 1
> +    description: base I2C address of the device
> +
> +  reset-gpios:
> +    maxItems: 1
> +    description: GPIO connected to active low reset
> +
> +  dvdd12-supply:
> +    maxItems: 1
> +    description: Regulator for 1.2V digital core power.
> +
> +  dvdd25-supply:
> +    maxItems: 1
> +    description: Regulator for 2.5V digital core power.
> +
> +  ports:
> +    type: object
> +
> +    properties:
> +      port@0:
> +        type: object
> +        description: |
> +          Video port for LVTTL input
> +
> +      port@1:
> +        type: object
> +        description: |
> +          Video port for eDP output (panel or connector).
> +          May be omitted if EDID works reliably.
> +
> +    required:
> +      - port@0

You should have something like:

ports:
  type: object
  additionalProperties: false

as well...

> +
> +required:
> +  - compatible
> +  - reg
> +  - reset-gpios
> +  - dvdd12-supply
> +  - dvdd25-supply
> +  - ports
> +
> +additionalProperties: false

This prevents additional properties only on the top-level node, not
its children.

Maxime
Torsten Duwe Nov. 5, 2019, 10:58 a.m. UTC | #2
On Tue, Nov 05, 2019 at 11:43:42AM +0100, Maxime Ripard wrote:
> 
> On Tue, Oct 29, 2019 at 01:16:57PM +0100, Torsten Duwe wrote:
> > The anx6345 is an ultra-low power DisplayPort/eDP transmitter designed
> > for portable devices.
> >
> > Add a binding document for it.
> >
> > Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
> > Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
> > Reviewed-by: Rob Herring <robh@kernel.org>
> > Signed-off-by: Torsten Duwe <duwe@suse.de>
> > Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> 
> Applied, thanks

Re-thanks!

> (still, there's one comment below that can be addressed in a
> subsequent patch).
> 
> > +
> > +  ports:
> > +    type: object
> > +
> > +    properties:
> > +      port@0:
> > +        type: object
> > +        description: |
> > +          Video port for LVTTL input
> > +
> > +      port@1:
> > +        type: object
> > +        description: |
> > +          Video port for eDP output (panel or connector).
> > +          May be omitted if EDID works reliably.
> > +
> > +    required:
> > +      - port@0
> 
> You should have something like:
> 
> ports:
>   type: object
>   additionalProperties: false
> 
> as well...

Yes, and it also struck me that I forgot at least about the hotplug-gpio.
It's unused on the Teres and the Pinebook, but in theory it's a valid
property, which can't be added any more now.

	Torsten

Patch
diff mbox series

diff --git a/Documentation/devicetree/bindings/display/bridge/anx6345.yaml b/Documentation/devicetree/bindings/display/bridge/anx6345.yaml
new file mode 100644
index 000000000000..094e8e8a5faa
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/anx6345.yaml
@@ -0,0 +1,102 @@ 
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/anx6345.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analogix ANX6345 eDP Transmitter Device Tree Bindings
+
+maintainers:
+  - Torsten Duwe <duwe@lst.de>
+
+description: |
+  The ANX6345 is an ultra-low power Full-HD eDP transmitter designed for
+  portable devices.
+
+properties:
+  compatible:
+    const: analogix,anx6345
+
+  reg:
+    maxItems: 1
+    description: base I2C address of the device
+
+  reset-gpios:
+    maxItems: 1
+    description: GPIO connected to active low reset
+
+  dvdd12-supply:
+    maxItems: 1
+    description: Regulator for 1.2V digital core power.
+
+  dvdd25-supply:
+    maxItems: 1
+    description: Regulator for 2.5V digital core power.
+
+  ports:
+    type: object
+
+    properties:
+      port@0:
+        type: object
+        description: |
+          Video port for LVTTL input
+
+      port@1:
+        type: object
+        description: |
+          Video port for eDP output (panel or connector).
+          May be omitted if EDID works reliably.
+
+    required:
+      - port@0
+
+required:
+  - compatible
+  - reg
+  - reset-gpios
+  - dvdd12-supply
+  - dvdd25-supply
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c0 {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      anx6345: anx6345@38 {
+        compatible = "analogix,anx6345";
+        reg = <0x38>;
+        reset-gpios = <&pio42 1 /* GPIO_ACTIVE_LOW */>;
+        dvdd25-supply = <&reg_dldo2>;
+        dvdd12-supply = <&reg_fldo1>;
+
+        ports {
+          #address-cells = <1>;
+          #size-cells = <0>;
+
+          anx6345_in: port@0 {
+            #address-cells = <1>;
+            #size-cells = <0>;
+            reg = <0>;
+            anx6345_in_tcon0: endpoint@0 {
+              reg = <0>;
+              remote-endpoint = <&tcon0_out_anx6345>;
+            };
+          };
+
+          anx6345_out: port@1 {
+            #address-cells = <1>;
+            #size-cells = <0>;
+            reg = <1>;
+            anx6345_out_panel: endpoint@0 {
+              reg = <0>;
+              remote-endpoint = <&panel_in_edp>;
+            };
+          };
+        };
+      };
+    };