Re: [RFC 0/8] MIPS: CI20: add HDMI out support
From: Sam Ravnborg <hidden>
Date: 2020-02-27 16:57:18
Also in:
dri-devel, linux-gpio, linux-mips, lkml
Subsystem:
drm drivers, drm drivers and misc gpu patches, open firmware and flattened device tree bindings, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Hi Nikolaus.
quoted
quoted
Zubair Lutfullah Kakakhel (2): dt-bindings: video: Add jz4780-lcd binding dt-bindings: video: Add jz4780-hdmi binding .../bindings/display/ingenic-jz4780-hdmi.txt | 41 ++++++ .../bindings/display/ingenic-jz4780-lcd.txt | 39 ++++++New bindings in DT Schema format please... We want to have then in a formal launguage so we can use these to verify the DT files.Yes, I know. And I fully support the goal. But I personally do not have the time to learn the (IMHO brain-twisting) way the Schema format is working. Especially, I am not interested in becoming volunteer translator for .txt based schemas developed by someone else. So I hope that someone from the community can and is willing to do that.
I went ahead and typed them - please review and use these if OK. Sam From 6fee276807dfe4a502ff760e7c7840480d275052 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg <redacted> Date: Thu, 27 Feb 2020 17:18:29 +0100 Subject: [PATCH 1/2] dt-bindings: display: add ingenic-jz4780-lcd DT Schema Add DT bindings for the LCD controller on the jz4780 SoC Based on .txt binding from Zubair Lutfullah Kakakhel Signed-off-by: Sam Ravnborg <redacted> Cc: Zubair Lutfullah Kakakhel <redacted> Cc: H. Nikolaus Schaller <redacted> Cc: Rob Herring <robh@kernel.org> Cc: devicetree@vger.kernel.org --- .../bindings/display/ingenic-jz4780-lcd.yaml | 78 +++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/ingenic-jz4780-lcd.yaml
diff --git a/Documentation/devicetree/bindings/display/ingenic-jz4780-lcd.yaml b/Documentation/devicetree/bindings/display/ingenic-jz4780-lcd.yaml
new file mode 100644
index 000000000000..c71415a3a342
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/ingenic-jz4780-lcd.yaml@@ -0,0 +1,78 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/ingenic-jz4780-lcd.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Bindings for Ingenic JZ4780 LCD Controller + +maintainers: + - Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> + - H. Nikolaus Schaller <hns@goldelico.com> + +description: | + LCD Controller is the Display Controller for the Ingenic JZ4780 SoC + +properties: + compatible: + items: + - const: ingenic,jz4780-lcd + + reg: + maxItems: 1 + description: the address & size of the LCD controller registers + + interrupts: + maxItems: 1 + description: Specifies the interrupt provided by parent + + clocks: + maxItems: 2 + description: Clock specifiers for the JZ4780_CLK_TVE JZ4780_CLK_LCD0PIXCLK + + clock-names: + items: + - const: lcd_clk + - const: lcd_pixclk + + port: + type: object + description: | + A port node with endpoint definitions as defined in + Documentation/devicetree/bindings/media/video-interfaces.txt + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - port + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/jz4780-cgu.h> + lcd: jz4780-lcdk@0x13050000 { + compatible = "ingenic,jz4780-lcd"; + reg = <0x13050000 0x1800>; + + clocks = <&cgu JZ4780_CLK_TVE>, <&cgu JZ4780_CLK_LCD0PIXCLK>; + clock-names = "lcd_clk", "lcd_pixclk"; + + interrupt-parent = <&intc>; + interrupts = <31>; + + jz4780_lcd_out: port { + #address-cells = <1>; + #size-cells = <0>; + + jz4780_out_hdmi: endpoint@0 { + reg = <0>; + remote-endpoint = <&hdmi_in_lcd>; + }; + }; + }; + +...
--
2.20.1
From f4d01a657e07d468eb0bc811ed8edae0b58d66d7 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Thu, 27 Feb 2020 17:52:34 +0100
Subject: [PATCH 2/2] dt-bindings: display: add ingenic-jz4780-ihdmi DT Schema
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>
Cc: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: H. Nikolaus Schaller <hns@goldelico.com>
Cc: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
---
.../bindings/display/ingenic-jz4780-hdmi.yaml | 83 +++++++++++++++++++
1 file changed, 83 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 000000000000..9b71c427bd69
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/ingenic-jz4780-hdmi.yaml
@@ -0,0 +1,83 @@
+# 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:
+ - Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
+ - 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>;
+ };
+ };
+ };
+ };
+
+...
--
2.20.1