[PATCH/RFC 4/6] dt-bindings: display: rockchip: dw-hdmi: Convert binding to YAML
Laurent Pinchart
laurent.pinchart+renesas at ideasonboard.com
Sun Apr 5 23:39:33 UTC 2020
Convert the Rockchip HDMI TX text binding to YAML.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
---
.../display/rockchip/dw_hdmi-rockchip.txt | 74 --------
.../display/rockchip/rockchip,dw-hdmi.yaml | 178 ++++++++++++++++++
2 files changed, 178 insertions(+), 74 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt
create mode 100644 Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml
diff --git a/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt
deleted file mode 100644
index 3d32ce137e7f..000000000000
--- a/Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt
+++ /dev/null
@@ -1,74 +0,0 @@
-Rockchip DWC HDMI TX Encoder
-============================
-
-The HDMI transmitter is a Synopsys DesignWare HDMI 1.4 TX controller IP
-with a companion PHY IP.
-
-These DT bindings follow the Synopsys DWC HDMI TX bindings defined in
-Documentation/devicetree/bindings/display/bridge/dw_hdmi.txt with the
-following device-specific properties.
-
-
-Required properties:
-
-- compatible: should be one of the following:
- "rockchip,rk3228-dw-hdmi"
- "rockchip,rk3288-dw-hdmi"
- "rockchip,rk3328-dw-hdmi"
- "rockchip,rk3399-dw-hdmi"
-- reg: See dw_hdmi.txt.
-- reg-io-width: See dw_hdmi.txt. Shall be 4.
-- interrupts: HDMI interrupt number
-- clocks: See dw_hdmi.txt.
-- clock-names: Shall contain "iahb" and "isfr" as defined in dw_hdmi.txt.
-- ports: See dw_hdmi.txt. The DWC HDMI shall have a single port numbered 0
- corresponding to the video input of the controller. The port shall have two
- endpoints, numbered 0 and 1, connected respectively to the vopb and vopl.
-- rockchip,grf: Shall reference the GRF to mux vopl/vopb.
-
-Optional properties
-
-- ddc-i2c-bus: The HDMI DDC bus can be connected to either a system I2C master
- or the functionally-reduced I2C master contained in the DWC HDMI. When
- connected to a system I2C master this property contains a phandle to that
- I2C master controller.
-- clock-names: See dw_hdmi.txt. The "cec" clock is optional.
-- clock-names: May contain "cec" as defined in dw_hdmi.txt.
-- clock-names: May contain "grf", power for grf io.
-- clock-names: May contain "vpll", external clock for some hdmi phy.
-- phys: from general PHY binding: the phandle for the PHY device.
-- phy-names: Should be "hdmi" if phys references an external phy.
-
-Optional pinctrl entry:
-- If you have both a "unwedge" and "default" pinctrl entry, dw_hdmi
- will switch to the unwedge pinctrl state for 10ms if it ever gets an
- i2c timeout. It's intended that this unwedge pinctrl entry will
- cause the SDA line to be driven low to work around a hardware
- errata.
-
-Example:
-
-hdmi: hdmi at ff980000 {
- compatible = "rockchip,rk3288-dw-hdmi";
- reg = <0xff980000 0x20000>;
- reg-io-width = <4>;
- ddc-i2c-bus = <&i2c5>;
- rockchip,grf = <&grf>;
- interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cru PCLK_HDMI_CTRL>, <&cru SCLK_HDMI_HDCP>;
- clock-names = "iahb", "isfr";
- ports {
- hdmi_in: port {
- #address-cells = <1>;
- #size-cells = <0>;
- hdmi_in_vopb: endpoint at 0 {
- reg = <0>;
- remote-endpoint = <&vopb_out_hdmi>;
- };
- hdmi_in_vopl: endpoint at 1 {
- reg = <1>;
- remote-endpoint = <&vopl_out_hdmi>;
- };
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml
new file mode 100644
index 000000000000..8ff544ae0ac2
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml
@@ -0,0 +1,178 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/rockchip/rockchip,dw-hdmi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip DWC HDMI TX Encoder
+
+maintainers:
+ - Mark Yao <mark.yao at rock-chips.com>
+
+description: |
+ The HDMI transmitter is a Synopsys DesignWare HDMI 1.4 TX controller IP
+ with a companion PHY IP.
+
+allOf:
+ - $ref: ../bridge/synopsys,dw-hdmi.yaml#
+
+properties:
+ compatible:
+ enum:
+ - rockchip,rk3228-dw-hdmi
+ - rockchip,rk3288-dw-hdmi
+ - rockchip,rk3328-dw-hdmi
+ - rockchip,rk3399-dw-hdmi
+
+ reg: true
+
+ reg-io-width:
+ const: 4
+
+ clocks:
+ minItems: 2
+ maxItems: 5
+ items:
+ - description: The bus clock for either AHB and APB
+ - description: The internal register configuration clock
+ - description: The HDMI CEC controller main clock
+ - description: Power for GRF IO
+ - description: External clock for some HDMI PHY
+
+ clock-names:
+ minItems: 2
+ maxItems: 5
+ items:
+ - const: iahb
+ - const: isfr
+ - enum:
+ - cec
+ - grf
+ - vpll
+ - enum:
+ - cec
+ - grf
+ - vpll
+ - enum:
+ - cec
+ - grf
+ - vpll
+
+ ddc-i2c-bus:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ The HDMI DDC bus can be connected to either a system I2C master or the
+ functionally-reduced I2C master contained in the DWC HDMI. When connected
+ to a system I2C master this property contains a phandle to that I2C
+ master controller.
+
+ interrupts: true
+
+ phys:
+ maxItems: 1
+ description: The HDMI PHY
+
+ phy-names:
+ const: hdmi
+
+ pinctrl-0: true
+ pinctrl-1: true
+
+ pinctrl-names:
+ description:
+ The unwedge pinctrl entry shall drive the DDC SDA line low. This is
+ intended to work around a hardware errata that can cause the DDC I2C
+ bus to be wedged.
+ items:
+ - const: default
+ - const: unwedge
+
+ ports:
+ type: object
+ description: |
+ This device has one video port, corresponding to the input of the DWC
+ HDMI TX. Its connections are modelled using the OF graph bindings
+ specified in Documentation/devicetree/bindings/graph.txt.
+
+ properties:
+ port:
+ type: object
+ description: Input of the DWC HDMI TX
+
+ properties:
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ endpoint at 0:
+ type: object
+ description: Connection to the VOPB
+
+ endpoint at 1:
+ type: object
+ description: Connection to the VOPL
+
+ required:
+ - endpoint at 0
+ - endpoint at 1
+
+ additionalProperties: false
+
+ required:
+ - port
+
+ additionalProperties: false
+
+ rockchip,grf:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ phandle to the GRF to mux vopl/vopb.
+
+required:
+ - compatible
+ - reg
+ - reg-io-width
+ - clocks
+ - clock-names
+ - interrupts
+ - ports
+ - rockchip,grf
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/rk3288-cru.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ hdmi: hdmi at ff980000 {
+ compatible = "rockchip,rk3288-dw-hdmi";
+ reg = <0xff980000 0x20000>;
+ reg-io-width = <4>;
+ ddc-i2c-bus = <&i2c5>;
+ rockchip,grf = <&grf>;
+ interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru PCLK_HDMI_CTRL>, <&cru SCLK_HDMI_HDCP>;
+ clock-names = "iahb", "isfr";
+
+ ports {
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hdmi_in_vopb: endpoint at 0 {
+ reg = <0>;
+ remote-endpoint = <&vopb_out_hdmi>;
+ };
+ hdmi_in_vopl: endpoint at 1 {
+ reg = <1>;
+ remote-endpoint = <&vopl_out_hdmi>;
+ };
+ };
+ };
+ };
+
+...
--
Regards,
Laurent Pinchart
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