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Message-ID: <20200227165706.GA20296@ravnborg.org>
Date: Thu, 27 Feb 2020 17:57:06 +0100
From: Sam Ravnborg <sam@...nborg.org>
To: "H. Nikolaus Schaller" <hns@...delico.com>
Cc: Paul Cercueil <paul@...pouillou.net>,
Paul Boddie <paul@...die.org.uk>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Ralf Baechle <ralf@...ux-mips.org>,
Paul Burton <paulburton@...nel.org>,
Linus Walleij <linus.walleij@...aro.org>,
Andi Kleen <ak@...ux.intel.com>,
Krzysztof Kozlowski <krzk@...nel.org>,
Geert Uytterhoeven <geert+renesas@...der.be>,
"Eric W. Biederman" <ebiederm@...ssion.com>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
dri-devel@...ts.freedesktop.org, linux-mips@...r.kernel.org,
linux-gpio@...r.kernel.org, kernel@...a-handheld.com,
letux-kernel@...nphoenux.org
Subject: Re: [RFC 0/8] MIPS: CI20: add HDMI out support
Hi Nikolaus.
> >> 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 <sam@...nborg.org>
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 <sam@...nborg.org>
Cc: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@...tec.com>
Cc: H. Nikolaus Schaller <hns@...delico.com>
Cc: Rob Herring <robh@...nel.org>
Cc: devicetree@...r.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@...tec.com>
+ - H. Nikolaus Schaller <hns@...delico.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@...3050000 {
+ 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@...nborg.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@...nborg.org>
Cc: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@...tec.com>
Cc: H. Nikolaus Schaller <hns@...delico.com>
Cc: Rob Herring <robh@...nel.org>
Cc: devicetree@...r.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@...tec.com>
+ - H. Nikolaus Schaller <hns@...delico.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@...80000 {
+ 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
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