linux-kernel - [PATCH v4 1/2] dt-bindings: phy: Add Rockchip MIPI C-/D-PHY schema

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Message-ID: <20241126131736.465111-2-heiko@sntech.de>
Date: Tue, 26 Nov 2024 14:17:34 +0100
From: Heiko Stuebner <heiko@...ech.de>
To: vkoul@...nel.org,
	kishon@...nel.org
Cc: robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	quentin.schulz@...rry.de,
	sebastian.reichel@...labora.com,
	heiko@...ech.de,
	linux-phy@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	dse@...umatec.com,
	Heiko Stuebner <heiko.stuebner@...rry.de>
Subject: [PATCH v4 1/2] dt-bindings: phy: Add Rockchip MIPI C-/D-PHY schema

From: Heiko Stuebner <heiko.stuebner@...rry.de>

Add dt-binding schema for the MIPI C-/D-PHY found on
Rockchip RK3588 SoCs.

Tested-by: Daniel Semkowicz <dse@...umatec.com>
Tested-by: Sebastian Reichel <sebastian.reichel@...labora.com>
Signed-off-by: Heiko Stuebner <heiko.stuebner@...rry.de>
---
 .../phy/rockchip,rk3588-mipi-dcphy.yaml       | 87 +++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/rockchip,rk3588-mipi-dcphy.yaml

diff --git a/Documentation/devicetree/bindings/phy/rockchip,rk3588-mipi-dcphy.yaml b/Documentation/devicetree/bindings/phy/rockchip,rk3588-mipi-dcphy.yaml
new file mode 100644
index 000000000000..c8ff5ba22a86
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/rockchip,rk3588-mipi-dcphy.yaml
@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/rockchip,rk3588-mipi-dcphy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip MIPI D-/C-PHY with Samsung IP block
+
+maintainers:
+  - Guochun Huang <hero.huang@...k-chips.com>
+  - Heiko Stuebner <heiko@...ech.de>
+
+properties:
+  compatible:
+    enum:
+      - rockchip,rk3576-mipi-dcphy
+      - rockchip,rk3588-mipi-dcphy
+
+  reg:
+    maxItems: 1
+
+  "#phy-cells":
+    const: 1
+    description: |
+      Argument is mode to operate in. Supported modes are:
+        - PHY_TYPE_DPHY
+        - PHY_TYPE_CPHY
+      See include/dt-bindings/phy/phy.h for constants.
+
+  clocks:
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: pclk
+      - const: ref
+
+  resets:
+    maxItems: 4
+
+  reset-names:
+    items:
+      - const: m_phy
+      - const: apb
+      - const: grf
+      - const: s_phy
+
+  rockchip,grf:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Phandle to the syscon managing the 'mipi dcphy general register files'.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - resets
+  - reset-names
+  - "#phy-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/rockchip,rk3588-cru.h>
+    #include <dt-bindings/reset/rockchip,rk3588-cru.h>
+
+    soc {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      phy@...a0000 {
+        compatible = "rockchip,rk3588-mipi-dcphy";
+        reg = <0x0 0xfeda0000 0x0 0x10000>;
+        clocks = <&cru PCLK_MIPI_DCPHY0>,
+                 <&cru CLK_USBDPPHY_MIPIDCPPHY_REF>;
+        clock-names = "pclk", "ref";
+        resets = <&cru SRST_M_MIPI_DCPHY0>,
+                 <&cru SRST_P_MIPI_DCPHY0>,
+                 <&cru SRST_P_MIPI_DCPHY0_GRF>,
+                 <&cru SRST_S_MIPI_DCPHY0>;
+        reset-names = "m_phy", "apb", "grf", "s_phy";
+        rockchip,grf = <&mipidcphy0_grf>;
+        #phy-cells = <1>;
+      };
+    };
-- 
2.45.2