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Message-ID: <20240704084837.168075-2-manikandan.m@microchip.com>
Date: Thu, 4 Jul 2024 14:18:34 +0530
From: Manikandan Muralidharan <manikandan.m@...rochip.com>
To: <andrzej.hajda@...el.com>, <neil.armstrong@...aro.org>,
<rfoss@...nel.org>, <Laurent.pinchart@...asonboard.com>, <jonas@...boo.se>,
<jernej.skrabec@...il.com>, <airlied@...il.com>, <daniel@...ll.ch>,
<maarten.lankhorst@...ux.intel.com>, <mripard@...nel.org>,
<tzimmermann@...e.de>, <robh@...nel.org>, <krzk+dt@...nel.org>,
<conor+dt@...nel.org>, <linux@...linux.org.uk>,
<nicolas.ferre@...rochip.com>, <alexandre.belloni@...tlin.com>,
<claudiu.beznea@...on.dev>, <arnd@...db.de>, <Jason@...c4.com>,
<palmer@...osinc.com>, <mpe@...erman.id.au>, <rdunlap@...radead.org>,
<dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>
CC: <manikandan.m@...rochip.com>, <Hari.PrasathGE@...rochip.com>,
<Nicolas.Ferre@...rochip.com>
Subject: [PATCH 1/4] dt-bindings: display: bridge: add sam9x75-mipi-dsi binding
Add the 'sam9x75-mipi-dsi' compatible binding, which describes the
Microchip's specific wrapper for the Synopsys DesignWare MIPI DSI HOST
Controller for the sam9x75 series System-on-Chip (SoC) devices.
Signed-off-by: Manikandan Muralidharan <manikandan.m@...rochip.com>
---
.../bridge/microchip,sam9x75-mipi-dsi.yaml | 135 ++++++++++++++++++
1 file changed, 135 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/bridge/microchip,sam9x75-mipi-dsi.yaml
diff --git a/Documentation/devicetree/bindings/display/bridge/microchip,sam9x75-mipi-dsi.yaml b/Documentation/devicetree/bindings/display/bridge/microchip,sam9x75-mipi-dsi.yaml
new file mode 100644
index 000000000000..87aaf9c929e9
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/microchip,sam9x75-mipi-dsi.yaml
@@ -0,0 +1,135 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/microchip,sam9x75-mipi-dsi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip SAM9X75 MIPI DSI Controller
+
+maintainers:
+ - Manikandan Muralidharan <manikandan.m@...rochip.com>
+
+description:
+ Microchip specific extensions or wrapper to the Synopsys Designware MIPI DSI.
+ The MIPI Display Serial Interface (DSI) Host Controller implements all
+ protocol functions defined in the MIPI DSI Specification. The DSI Host
+ provides an interface between the LCD Controller (LCDC) and the MIPI D-PHY,
+ allowing communication with a DSI-compliant display.
+
+allOf:
+ - $ref: /schemas/display/dsi-controller.yaml#
+
+properties:
+ compatible:
+ const: microchip,sam9x75-mipi-dsi
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ description:
+ MIPI DSI must have two clocks to function correctly.Peripheral clock
+ 'pclk' for the hardware block functionality and Generic clock 'refclk' to
+ drive the D-PHY PLL block.
+ minItems: 2
+
+ clock-names:
+ items:
+ - const: pclk
+ - const: refclk
+
+ microchip,sfr:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ phandle to Special Function Register (SFR) node.To enable the DSI/CSI
+ selection bit in SFR's ISS Configuration Register.
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description:
+ DSI Input port node, connected to the LCDC RGB output port.
+
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+ properties:
+ remote-endpoint: true
+
+ port@1:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description:
+ DSI Output port node, connected to a panel or a bridge input port.
+
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+ properties:
+ remote-endpoint: true
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - ports
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/at91.h>
+ #include <dt-bindings/gpio/gpio.h>
+
+ dsi: dsi@...54000 {
+ compatible = "microchip,sam9x75-mipi-dsi";
+ reg = <0xf8054000 0x200>;
+ clocks = <&pmc PMC_TYPE_PERIPHERAL 54>, <&pmc PMC_TYPE_GCK 55>;
+ clock-names = "pclk", "refclk";
+ microchip,sfr = <&sfr>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dsi_in: endpoint {
+ remote-endpoint = <&hlcdc_panel_output>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dsi_out: endpoint {
+ remote-endpoint = <&mipi_in_panel>;
+ };
+ };
+ };
+
+ panel@0 {
+ compatible = "hannstar,hsd060bhw4", "himax,hx8394";
+ reg = <0>;
+ vcc-supply = <&mic23150_reg>;
+ iovcc-supply = <&mic23150_reg>;
+ reset-gpios = <&pioC 24 GPIO_ACTIVE_LOW>;
+ backlight = <&backlight>;
+
+ port {
+ mipi_in_panel: endpoint {
+ remote-endpoint = <&dsi_out>;
+ };
+ };
+ };
+ };
+...
--
2.25.1
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