[PATCH 1/9] dt-bindings: display: Add yamls for JH7110 display subsystem
Keith Zhao
keith.zhao at starfivetech.com
Fri Jun 2 07:40:35 UTC 2023
Add bindings for JH7110 display subsystem which
has a display controller verisilicon dc8200
and an HDMI interface.
Signed-off-by: Keith Zhao <keith.zhao at starfivetech.com>
---
.../display/verisilicon/starfive-hdmi.yaml | 93 +++++++++++++++
.../display/verisilicon/verisilicon-dc.yaml | 110 ++++++++++++++++++
.../display/verisilicon/verisilicon-drm.yaml | 42 +++++++
.../devicetree/bindings/vendor-prefixes.yaml | 2 +
MAINTAINERS | 7 ++
5 files changed, 254 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/verisilicon/starfive-hdmi.yaml
create mode 100644 Documentation/devicetree/bindings/display/verisilicon/verisilicon-dc.yaml
create mode 100644 Documentation/devicetree/bindings/display/verisilicon/verisilicon-drm.yaml
diff --git a/Documentation/devicetree/bindings/display/verisilicon/starfive-hdmi.yaml b/Documentation/devicetree/bindings/display/verisilicon/starfive-hdmi.yaml
new file mode 100644
index 000000000000..c30b7954a355
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/verisilicon/starfive-hdmi.yaml
@@ -0,0 +1,93 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/verisilicon/starfive-hdmi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive HDMI transmiter
+
+description:
+ The StarFive SoC uses the HDMI signal transmiter based on innosilicon IP
+ to generate HDMI signal from its input and transmit the signal to the screen.
+
+maintainers:
+ - Keith Zhao <keith.zhao at starfivetech.com>
+ - ShengYang Chen <shengyang.chen at starfivetech.com>
+
+properties:
+ compatible:
+ const: starfive,hdmi
+
+ reg:
+ minItems: 1
+
+ interrupts:
+ items:
+ - description: The HDMI hot plug detection interrupt.
+
+ clocks:
+ items:
+ - description: System clock of HDMI module.
+ - description: Mclk clock of HDMI audio.
+ - description: Bclk clock of HDMI audio.
+ - description: Pixel clock generated by HDMI module.
+
+ clock-names:
+ items:
+ - const: sysclk
+ - const: mclk
+ - const: bclk
+ - const: pclk
+
+ resets:
+ items:
+ - description: Reset for HDMI module.
+
+ reset-names:
+ items:
+ - const: hdmi_tx
+
+ '#sound-dai-cells':
+ const: 0
+
+ port:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ Port node with one endpoint connected to a display connector node.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - '#sound-dai-cells'
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+ hdmi: hdmi at 29590000 {
+ compatible = "starfive,hdmi";
+ reg = <0x29590000 0x4000>;
+ interrupts = <99>;
+ clocks = <&voutcrg 17>,
+ <&voutcrg 15>,
+ <&voutcrg 16>,
+ <&hdmitx0_pixelclk>;
+ clock-names = "sysclk", "mclk","bclk","pclk";
+ resets = <&voutcrg 9>;
+ reset-names = "hdmi_tx";
+ #sound-dai-cells = <0>;
+ hdmi_in: port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ hdmi_input: endpoint at 0 {
+ reg = <0>;
+ remote-endpoint = <&dc_out_dpi0>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/verisilicon/verisilicon-dc.yaml b/Documentation/devicetree/bindings/display/verisilicon/verisilicon-dc.yaml
new file mode 100644
index 000000000000..1322502c4cde
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/verisilicon/verisilicon-dc.yaml
@@ -0,0 +1,110 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/verisilicon/verisilicon-dc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive display controller
+
+description:
+ The StarFive SoC uses the display controller based on Verisilicon IP
+ to transfer the image data from a video memory
+ buffer to an external LCD interface.
+
+maintainers:
+ - Keith Zhao <keith.zhao at starfivetech.com>
+ - ShengYang Chen <shengyang.chen at starfivetech.com>
+
+properties:
+ compatible:
+ const: verisilicon,dc8200
+
+ reg:
+ maxItems: 3
+
+ interrupts:
+ items:
+ - description: The interrupt will be generated when DC finish one frame
+
+ clocks:
+ items:
+ - description: Clock for display system noc bus.
+ - description: Pixel clock for display channel 0.
+ - description: Pixel clock for display channel 1.
+ - description: Clock for axi interface of display controller.
+ - description: Core clock for display controller.
+ - description: Clock for ahb interface of display controller.
+ - description: External HDMI pixel clock.
+ - description: Parent clock for pixel clock
+
+ clock-names:
+ items:
+ - const: clk_vout_noc_disp
+ - const: clk_vout_pix0
+ - const: clk_vout_pix1
+ - const: clk_vout_axi
+ - const: clk_vout_core
+ - const: clk_vout_vout_ahb
+ - const: hdmitx0_pixel
+ - const: clk_vout_dc8200
+
+ resets:
+ items:
+ - description: Reset for axi interface of display controller.
+ - description: Reset for ahb interface of display controller.
+ - description: Core reset of display controller.
+
+ reset-names:
+ items:
+ - const: rst_vout_axi
+ - const: rst_vout_ahb
+ - const: rst_vout_core
+
+ port:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ Port node with one endpoint connected to a hdmi node.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+ dc8200: dc8200 at 29400000 {
+ compatible = "verisilicon,dc8200";
+ reg = <0x29400000 0x100>,
+ <0x29400800 0x2000>,
+ <0x295B0000 0x90>;
+ interrupts = <95>;
+ clocks = <&syscrg 60>,
+ <&voutcrg 7>,
+ <&voutcrg 8>,
+ <&voutcrg 4>,
+ <&voutcrg 5>,
+ <&voutcrg 6>,
+ <&hdmitx0_pixelclk>,
+ <&voutcrg 1>;
+ clock-names = "clk_vout_noc_disp", "clk_vout_pix0", "clk_vout_pix1", "clk_vout_axi",
+ "clk_vout_core", "clk_vout_vout_ahb", "hdmitx0_pixel","clk_vout_dc8200";
+ resets = <&voutcrg 0>,
+ <&voutcrg 1>,
+ <&voutcrg 2>;
+ reset-names = "rst_vout_axi","rst_vout_ahb","rst_vout_core";
+ dc_out: port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ dc_out_dpi0: endpoint at 0 {
+ reg = <0>;
+ remote-endpoint = <&hdmi_input>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/verisilicon/verisilicon-drm.yaml b/Documentation/devicetree/bindings/display/verisilicon/verisilicon-drm.yaml
new file mode 100644
index 000000000000..aed8d4af2c55
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/verisilicon/verisilicon-drm.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/verisilicon/verisilicon-drm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Verisilicon DRM master device
+
+maintainers:
+ - Keith Zhao <keith.zhao at starfivetech.com>
+ - ShengYang Chen <shengyang.chen at starfivetech.com>
+
+description: |
+ The Verisilicon DRM master device is a virtual device needed to list all
+ display controller or other display interface nodes that comprise the
+ graphics subsystem.
+
+properties:
+ compatible:
+ const: verisilicon,display-subsystem
+
+ ports:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ items:
+ maxItems: 1
+ description: |
+ Should contain a list of phandles pointing to display interface ports
+ of display controller devices. Display controller definitions as defined in
+ Documentation/devicetree/bindings/display/verisilicon/verisilicon-dc.yaml
+
+required:
+ - compatible
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ display-subsystem {
+ compatible = "verisilicon,display-subsystem";
+ ports = <&dc_out>;
+ };
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index 82d39ab0231b..52c04fd098be 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -1436,6 +1436,8 @@ patternProperties:
description: Variscite Ltd.
"^vdl,.*":
description: Van der Laan b.v.
+ "^verisilicon,.*":
+ description: Verisilicon Technologies, Inc.
"^vertexcom,.*":
description: Vertexcom Technologies, Inc.
"^via,.*":
diff --git a/MAINTAINERS b/MAINTAINERS
index 2a0496448b7f..293aa13d484c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7049,6 +7049,13 @@ F: Documentation/devicetree/bindings/display/brcm,bcm2835-*.yaml
F: drivers/gpu/drm/vc4/
F: include/uapi/drm/vc4_drm.h
+DRM DRIVERS FOR VERISILICON
+M: Keith Zhao <keith.zhao at starfivetech.com>
+L: dri-devel at lists.freedesktop.org
+S: Maintained
+T: git git://anongit.freedesktop.org/drm/drm-misc
+F: Documentation/devicetree/bindings/display/verisilicon/
+
DRM DRIVERS FOR VIVANTE GPU IP
M: Lucas Stach <l.stach at pengutronix.de>
R: Russell King <linux+etnaviv at armlinux.org.uk>
--
2.34.1
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