diff mbox series

[v3,5/9] dt-bindings: display: Add ingenic-jz4780-hdmi DT Schema

Message ID 606e22c2ef4d32d63937976860fb24f4cb39b720.1628399442.git.hns@goldelico.com (mailing list archive)
State New, archived
Headers show
Series MIPS: JZ4780 and CI20 HDMI | expand

Commit Message

H. Nikolaus Schaller Aug. 8, 2021, 5:10 a.m. UTC
From: Sam Ravnborg <sam@ravnborg.org>

Add DT bindings for the hdmi driver for the Ingenic JZ4780 SoC.
Based on .txt binding from Zubair Lutfullah Kakakhel

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Cc: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
---
 .../bindings/display/ingenic-jz4780-hdmi.yaml | 82 +++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/ingenic-jz4780-hdmi.yaml

Comments

Rob Herring (Arm) Aug. 13, 2021, 8:46 p.m. UTC | #1
On Sun, Aug 08, 2021 at 07:10:39AM +0200, H. Nikolaus Schaller wrote:
> From: Sam Ravnborg <sam@ravnborg.org>
> 
> Add DT bindings for the hdmi driver for the Ingenic JZ4780 SoC.
> Based on .txt binding from Zubair Lutfullah Kakakhel
> 
> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
> Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
> Cc: Rob Herring <robh@kernel.org>
> Cc: devicetree@vger.kernel.org
> ---
>  .../bindings/display/ingenic-jz4780-hdmi.yaml | 82 +++++++++++++++++++
>  1 file changed, 82 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/ingenic-jz4780-hdmi.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/ingenic-jz4780-hdmi.yaml b/Documentation/devicetree/bindings/display/ingenic-jz4780-hdmi.yaml
> new file mode 100644
> index 0000000000000..a545ff8704ebd
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/ingenic-jz4780-hdmi.yaml
> @@ -0,0 +1,82 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/ingenic-jz4780-hdmi.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Bindings for Ingenic JZ4780 HDMI Transmitter
> +
> +maintainers:
> +  - H. Nikolaus Schaller <hns@goldelico.com>
> +
> +description: |
> +  The HDMI Transmitter in the Ingenic JZ4780 is a Synopsys DesignWare HDMI 1.4
> +  TX controller IP with accompanying PHY IP.
> +
> +allOf:
> +  - $ref: panel/panel-common.yaml#

This isn't a panel...

> +
> +properties:
> +  compatible:
> +    items:
> +      - const: ingenic,jz4780-hdmi
> +
> +  reg:
> +    maxItems: 1
> +    description: the address & size of the LCD controller registers

Drop. Don't need generic descriptions. Plus, this isn't an LCD 
controller.

> +
> +  reg-io-width:
> +    const: 4
> +
> +  interrupts:
> +    maxItems: 1
> +    description: Specifies the interrupt provided by parent

Drop. Don't need generic descriptions.

> +
> +  clocks:
> +    maxItems: 2
> +    description: Clock specifiers for isrf and iahb clocks
> +
> +  clock-names:
> +    items:
> +      - const: isfr
> +      - const: iahb
> +
> +  ddc-i2c-bus: true

This belongs in a connector or panel node.

> +  ports: true

You have to define what each 'port' node is and reference the graph 
schema. Given you are using 'ports', I assume there is more than 1. The 
example says not, but you need to add an output port for a connector 
node.

> +
> +required:
> +    - compatible
> +    - clocks
> +    - clock-names
> +    - ports
> +    - reg-io-width
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/jz4780-cgu.h>
> +
> +    hdmi: hdmi@10180000 {
> +        compatible = "ingenic,jz4780-hdmi";
> +        reg = <0x10180000 0x8000>;
> +        reg-io-width = <4>;
> +        ddc-i2c-bus = <&i2c4>;
> +        interrupt-parent = <&intc>;
> +        interrupts = <3>;
> +        clocks = <&cgu JZ4780_CLK_HDMI>, <&cgu JZ4780_CLK_AHB0>;
> +        clock-names = "isfr", "iahb";
> +
> +        ports {
> +            hdmi_in: port {
> +                #address-cells = <1>;
> +                #size-cells = <0>;
> +                hdmi_in_lcd: endpoint@0 {
> +                    reg = <0>;
> +                    remote-endpoint = <&jz4780_out_hdmi>;
> +                };
> +            };
> +        };
> +    };
> +
> +...
> -- 
> 2.31.1
> 
>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/display/ingenic-jz4780-hdmi.yaml b/Documentation/devicetree/bindings/display/ingenic-jz4780-hdmi.yaml
new file mode 100644
index 0000000000000..a545ff8704ebd
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/ingenic-jz4780-hdmi.yaml
@@ -0,0 +1,82 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/ingenic-jz4780-hdmi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bindings for Ingenic JZ4780 HDMI Transmitter
+
+maintainers:
+  - H. Nikolaus Schaller <hns@goldelico.com>
+
+description: |
+  The HDMI Transmitter in the Ingenic JZ4780 is a Synopsys DesignWare HDMI 1.4
+  TX controller IP with accompanying PHY IP.
+
+allOf:
+  - $ref: panel/panel-common.yaml#
+
+properties:
+  compatible:
+    items:
+      - const: ingenic,jz4780-hdmi
+
+  reg:
+    maxItems: 1
+    description: the address & size of the LCD controller registers
+
+  reg-io-width:
+    const: 4
+
+  interrupts:
+    maxItems: 1
+    description: Specifies the interrupt provided by parent
+
+  clocks:
+    maxItems: 2
+    description: Clock specifiers for isrf and iahb clocks
+
+  clock-names:
+    items:
+      - const: isfr
+      - const: iahb
+
+  ddc-i2c-bus: true
+  ports: true
+
+required:
+    - compatible
+    - clocks
+    - clock-names
+    - ports
+    - reg-io-width
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/jz4780-cgu.h>
+
+    hdmi: hdmi@10180000 {
+        compatible = "ingenic,jz4780-hdmi";
+        reg = <0x10180000 0x8000>;
+        reg-io-width = <4>;
+        ddc-i2c-bus = <&i2c4>;
+        interrupt-parent = <&intc>;
+        interrupts = <3>;
+        clocks = <&cgu JZ4780_CLK_HDMI>, <&cgu JZ4780_CLK_AHB0>;
+        clock-names = "isfr", "iahb";
+
+        ports {
+            hdmi_in: port {
+                #address-cells = <1>;
+                #size-cells = <0>;
+                hdmi_in_lcd: endpoint@0 {
+                    reg = <0>;
+                    remote-endpoint = <&jz4780_out_hdmi>;
+                };
+            };
+        };
+    };
+
+...