linux-kernel - [PATCH V8 09/12] dt-bindings: display: imx: add binding for i.MX8MP HDMI TX

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Message-ID: <20240203165307.7806-10-aford173@gmail.com>
Date: Sat,  3 Feb 2024 10:52:49 -0600
From: Adam Ford <aford173@...il.com>
To: linux-arm-kernel@...ts.infradead.org
Cc: marex@...x.de,
	alexander.stein@...tq-group.com,
	frieder.schrempf@...tron.de,
	Lucas Stach <l.stach@...gutronix.de>,
	Adam Ford <aford173@...il.com>,
	Andrzej Hajda <andrzej.hajda@...el.com>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Robert Foss <rfoss@...nel.org>,
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
	Jonas Karlman <jonas@...boo.se>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Daniel Vetter <daniel@...ll.ch>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	NXP Linux Team <linux-imx@....com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Vinod Koul <vkoul@...nel.org>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	Liu Ying <victor.liu@....com>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-phy@...ts.infradead.org,
	linux-pm@...r.kernel.org
Subject: [PATCH V8 09/12] dt-bindings: display: imx: add binding for i.MX8MP HDMI TX

From: Lucas Stach <l.stach@...gutronix.de>

The HDMI TX controller on the i.MX8MP SoC is a Synopsys designware IP
core with a little bit of SoC integration around it.

Signed-off-by: Lucas Stach <l.stach@...gutronix.de>
Signed-off-by: Adam Ford <aford173@...il.com>

---
V3:  Change name and location to better idenfity as a bridge and
     HDMI 2.0a transmitter

     Fix typos and feedback from Rob and added ports.
---
 .../display/bridge/fsl,imx8mp-hdmi-tx.yaml    | 102 ++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/fsl,imx8mp-hdmi-tx.yaml

diff --git a/Documentation/devicetree/bindings/display/bridge/fsl,imx8mp-hdmi-tx.yaml b/Documentation/devicetree/bindings/display/bridge/fsl,imx8mp-hdmi-tx.yaml
new file mode 100644
index 000000000000..3791c9f4ebab
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/fsl,imx8mp-hdmi-tx.yaml
@@ -0,0 +1,102 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/fsl,imx8mp-hdmi-tx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8MP DWC HDMI TX Encoder
+
+maintainers:
+  - Lucas Stach <l.stach@...gutronix.de>
+
+description:
+  The i.MX8MP HDMI transmitter is a Synopsys DesignWare
+  HDMI 2.0a TX controller IP.
+
+allOf:
+  - $ref: /schemas/display/bridge/synopsys,dw-hdmi.yaml#
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx8mp-hdmi-tx
+
+  reg-io-width:
+    const: 1
+
+  clocks:
+    maxItems: 4
+
+  clock-names:
+    items:
+      - const: iahb
+      - const: isfr
+      - const: cec
+      - const: pix
+
+  power-domains:
+    maxItems: 1
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: Parallel RGB input port
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: HDMI output port
+
+    required:
+      - port@0
+      - port@1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+  - power-domains
+  - ports
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/imx8mp-clock.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/power/imx8mp-power.h>
+
+    hdmi@...d8000 {
+        compatible = "fsl,imx8mp-hdmi-tx";
+        reg = <0x32fd8000 0x7eff>;
+        interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&clk IMX8MP_CLK_HDMI_APB>,
+                 <&clk IMX8MP_CLK_HDMI_REF_266M>,
+                 <&clk IMX8MP_CLK_32K>,
+                 <&hdmi_tx_phy>;
+        clock-names = "iahb", "isfr", "cec", "pix";
+        power-domains = <&hdmi_blk_ctrl IMX8MP_HDMIBLK_PD_HDMI_TX>;
+        reg-io-width = <1>;
+        ports {
+           #address-cells = <1>;
+           #size-cells = <0>;
+           port@0 {
+             reg = <0>;
+
+             hdmi_tx_from_pvi: endpoint {
+               remote-endpoint = <&pvi_to_hdmi_tx>;
+             };
+          };
+
+          port@1 {
+            reg = <1>;
+              hdmi_tx_out: endpoint {
+                remote-endpoint = <&hdmi0_con>;
+              };
+          };
+        };
+    };
-- 
2.43.0