linux-kernel - [PATCH RFC 03/13] dt-bindings: phy: Add starfive,jh7110-inno-hdmi-phy

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Message-Id: <20251108-jh7110-clean-send-v1-3-06bf43bb76b1@samsung.com>
Date: Sat, 08 Nov 2025 02:04:37 +0100
From: Michal Wilczynski <m.wilczynski@...sung.com>
To: Michal Wilczynski <m.wilczynski@...sung.com>,  Conor Dooley
	<conor@...nel.org>, Rob Herring <robh@...nel.org>,  Krzysztof Kozlowski
	<krzk+dt@...nel.org>,  Emil Renner Berthing <kernel@...il.dk>,  Hal Feng
	<hal.feng@...rfivetech.com>,  Michael Turquette <mturquette@...libre.com>, 
	Stephen Boyd <sboyd@...nel.org>, Conor Dooley <conor+dt@...nel.org>,  Xingyu
	Wu <xingyu.wu@...rfivetech.com>, Vinod Koul <vkoul@...nel.org>,  Kishon
	Vijay Abraham I <kishon@...nel.org>,  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>,  David Airlie
	<airlied@...il.com>, Simona Vetter <simona@...ll.ch>,  Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>,  Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,  Lee Jones <lee@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,  Paul Walmsley
	<paul.walmsley@...ive.com>,  Palmer Dabbelt <palmer@...belt.com>, Albert Ou
	<aou@...s.berkeley.edu>,  Alexandre Ghiti <alex@...ti.fr>,  Marek Szyprowski
	<m.szyprowski@...sung.com>, Icenowy Zheng <uwu@...nowy.me>,  Maud Spierings
	<maudspierings@...ontroll.com>, Andy Yan <andyshrk@....com>,  Heiko Stuebner
	<heiko@...ech.de>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-clk@...r.kernel.org, linux-phy@...ts.infradead.org, 
	dri-devel@...ts.freedesktop.org, linux-riscv@...ts.infradead.org
Subject: [PATCH RFC 03/13] dt-bindings: phy: Add
 starfive,jh7110-inno-hdmi-phy

Add the dt-binding for the StarFive JH7110 Innosilicon HDMI PHY.

This device is a child of the starfive,jh7110-hdmi-mfd node. It
functions as both a PHY provider for the controller and as a clock
provider for the variable pixel clock (hdmi_pclk), which it generates
from its refoclk.

Signed-off-by: Michal Wilczynski <m.wilczynski@...sung.com>
---
 .../phy/starfive,jh7110-inno-hdmi-phy.yaml         | 65 ++++++++++++++++++++++
 MAINTAINERS                                        |  1 +
 2 files changed, 66 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/starfive,jh7110-inno-hdmi-phy.yaml b/Documentation/devicetree/bindings/phy/starfive,jh7110-inno-hdmi-phy.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..a737ba767d4aa7c6cba197dc0314bdbb163930c8
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/starfive,jh7110-inno-hdmi-phy.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/starfive,jh7110-inno-hdmi-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7110 Innosilicon INNO HDMI PHY
+
+maintainers:
+  - Michal Wilczynski <m.wilczynski@...sung.com>
+
+description:
+  The PHY portion of the StarFive JH7110 INNO HDMI IP.
+
+properties:
+  compatible:
+    const: starfive,jh7110-inno-hdmi-phy
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: refoclk
+
+  '#clock-cells':
+    const: 0
+
+  clock-output-names:
+    const: hdmi_pclk
+
+  '#phy-cells':
+    const: 0
+
+required:
+  - compatible
+  - clocks
+  - clock-names
+  - '#clock-cells'
+  - clock-output-names
+  - '#phy-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    soc {
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        hdmi_mfd: hdmi@...90000 {
+            compatible = "starfive,jh7110-hdmi-mfd";
+            reg = <0x29590000 0x4000>;
+
+            hdmi_phy: phy {
+                compatible = "starfive,jh7110-inno-hdmi-phy";
+                clocks = <&xin24m>;
+                clock-names = "refoclk";
+                #clock-cells = <0>;
+                clock-output-names = "hdmi_pclk";
+                #phy-cells = <0>;
+            };
+        };
+    };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 99434e54dc39494153677a6ca359d70f2ba2ddb3..a75ba7a44ee84db6a75b91c1a0867a37db2ebcdb 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -24047,6 +24047,7 @@ F:	drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c
 STARFIVE JH7110 DISPLAY SUBSYSTEM
 M:	Michal Wilczynski <m.wilczynski@...sung.com>
 S:	Maintained
+F:	Documentation/devicetree/bindings/phy/starfive,jh7110-inno-hdmi-phy.yaml
 F:	Documentation/devicetree/bindings/soc/starfive/starfive,jh7110-vout-subsystem.yaml
 
 STARFIVE JH7110 DPHY RX DRIVER

-- 
2.34.1