Add dt-bindings for Synopsys DesignWare MIPI DSI Host and VPG (Video
Pattern Generator) support in the IPK display subsystem.
The Synopsys DesignWare IPK display video pipeline is composed by a DSI
controller (snps,dw-ipk-dsi) and a VPG (snps,dw-ipk-vpg) as DPI
stimulus. Typically is used the Raspberry Pi
(raspberrypi,7inch-touchscreen-panel) as DSI panel that requires a
I2C controller (snps,designware-i2c).
Reported-by: Rob Herring
Cc: David Airlie
Cc: Daniel Vetter
Cc: Sam Ravnborg
Cc: Rob Herring
Cc: Mark Rutland
Cc: Gustavo Pimentel
Cc: Joao Pinto
Signed-off-by: Angelo Ribeiro
---
Changes since v3:
- Fixed dt-binding breaking on `make dt_binding_check`.
Changes since v2:
- Fixed dt-bindings issues, see
https://patchwork.ozlabs.org/patch/1260819/.
---
.../bindings/display/snps,dw-ipk-dsi.yaml | 159 +
.../bindings/display/snps,dw-ipk-vpg.yaml | 73 ++
2 files changed, 232 insertions(+)
create mode 100644
Documentation/devicetree/bindings/display/snps,dw-ipk-dsi.yaml
create mode 100644
Documentation/devicetree/bindings/display/snps,dw-ipk-vpg.yaml
diff --git a/Documentation/devicetree/bindings/display/snps,dw-ipk-dsi.yaml
b/Documentation/devicetree/bindings/display/snps,dw-ipk-dsi.yaml
new file mode 100644
index 000..af4b775
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/snps,dw-ipk-dsi.yaml
@@ -0,0 +1,159 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/snps,dw-ipk-dsi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Synopsys DesignWare IPK specific extensions for the Synopsys DSI host
+ controller.
+
+maintainers:
+ - Angelo Ribeiro
+
+description: |
+ The Synopsys DesignWare IPK DSI controller uses the Synopsys DesignWare MIPI
+ DSI host controller.
+ For more info refer to
+ Documentation/devicetree/bindings/display/bridge/dw_mipi_dsi.txt.
+
+properties:
+ '#address-cells':
+const: 1
+
+ '#size-cells':
+const: 0
+
+ compatible:
+items:
+ - const: snps,dw-ipk-dsi
+ - const: snps,dw-mipi-dsi
+
+ reg:
+items:
+ - description: DW MIPI DSI Host registers
+ - description: DW MIPI DSI Phy test-chip registers
+minItems: 2
+
+ reg-names:
+items:
+ - const: dsi
+ - const: phy
+minItems: 2
+
+ clocks:
+items:
+ - description: Peripheral clock
+ - description: PLL clock
+ - description: Pixel clock
+minItems: 2
+
+ clock-names:
+items:
+ - const: pclk
+ - const: ref
+ - const: px_clk
+minItems: 2
+
+ resets:
+items:
+ - description: APB reset line
+minItems: 1
+
+ reset-names:
+items:
+ - const: apb
+minItems: 1
+
+ ports:
+type: object
+description: |
+ A port node containging a DSI input and outuput port nodes as defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt and
+ Documentation/devicetree/bindings/graph.txt.
+properties:
+ port@0:
+type: object
+description: Input endpoint of the controller, connects to a DPI
source.
+
+ port@1:
+type: object
+description: Output endpoint of the controller, connects to a panel or
+ a bridge input port.
+
+required:
+ - port@0
+ - port@1
+
+additionalProperties: false
+
+required:
+ - "#address-cells"
+ - "#size-cells"
+ - compatible
+ - reg
+ - reg-names
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - ports
+
+examples:
+ - |
+dsi1: dw-ipk-dsi@2000 {
+compatible = "snps,dw-ipk-dsi";
+reg = <0x02000 0xfff>, <0x05000 0xfff>;
+reg-names = "dsi", "phy";
+clocks = <_clk>, <_clk>;
+clock-names = "pclk", "ref";
+resets = <_rst 1>;
+reset-names = "apb";
+
+#address-cells = <1>;
+#size-cells = <0>;
+
+ports {
+#address-cells = <1>;
+#size-cells = <0>;
+
+port@0 {
+reg = <0>;
+dsi1_in: endpoint {
+remote-endpoint = <_out>;
+};
+};
+
+port@1 {
+reg = <1>;
+dsi_out_port: endpoint {
+remote-endpoint = <_dsi_port>;
+};
+};
+};
+};
+
+i2c: i2c@1000 {
+compatible = "snps,designware-i2c";
+reg = <0x01000 0x100>;
+clock-frequency = <40>;
+clocks = <>;
+interrupts = <0>;
+resets = <_rst 0>;
+reset-names = "i2c";
+
+#address-cells = <1>;
+#size-cells = <0>;
+
+lcd@45 {
+compatible = "raspberrypi,7inch-touchscreen-panel";
+reg = <0x45>;
+
+port {
+panel_dsi_port: endpoint {
+remote-endpoint = <_out_port>;
+};
+};
+};
+};
+
+...
