linux-kernel - [PATCH v1 2/2] dt-bindings: usb: Add bindings doc for Sunplus USB HOST OHCI driver

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Date:   Mon, 14 Mar 2022 13:32:04 +0800
From:   Vincent Shih <vincent.sunplus@...il.com>
To:     gregkh@...uxfoundation.org, stern@...land.harvard.edu,
        p.zabel@...gutronix.de, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, robh+dt@...nel.org,
        devicetree@...r.kernel.org, wells.lu@...plus.com
Cc:     Vincent Shih <vincent.sunplus@...il.com>
Subject: [PATCH v1 2/2] dt-bindings: usb: Add bindings doc for Sunplus USB HOST OHCI driver

Add bindings doc for Sunplus USB HOST OHCI driver

Signed-off-by: Vincent Shih <vincent.sunplus@...il.com>
---
 .../bindings/usb/sunplus,sp7021-usb-ohci.yaml      | 69 ++++++++++++++++++++++
 MAINTAINERS                                        |  1 +
 2 files changed, 70 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/sunplus,sp7021-usb-ohci.yaml

diff --git a/Documentation/devicetree/bindings/usb/sunplus,sp7021-usb-ohci.yaml b/Documentation/devicetree/bindings/usb/sunplus,sp7021-usb-ohci.yaml
new file mode 100644
index 0000000..7583b68
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/sunplus,sp7021-usb-ohci.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) Sunplus Co., Ltd. 2021
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/sunplus,sp7021-usb-ohci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sunplus SP7021 OHCI Controller Device Tree Bindings
+
+allOf:
+  - $ref: usb-hcd.yaml#
+
+maintainers:
+  - Vincent Shih <vincent.sunplus@...il.com>
+
+description:
+  Sunplus SP7021 USB HOST IP is a USB2.0 Host Controller. It supports both
+  Enhanced Host Controller Interface (EHCI) and Open Host Controller Interface
+  (OHCI).
+
+  It supports 32-bits address bus and 64bit data bus interface, compliant
+  to AMBA AXI interface for data transfer.
+
+  It supports 32-bits address and data bus interface, compliant to AMBA
+  AHB interface for register configurations.
+
+  It supports 32-bits address and data bus interface, compliant to AMBA
+  AXI interface for register alternative configurations.
+
+  The UTM Interface block generates PHY control signals, compliant to
+  USB2.0 Transceiver Macrocell Interface Specification Revision 1.0.
+
+properties:
+  compatible:
+    const: sunplus,sp7021-usb-ohci
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - resets
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    sp_ohci0: usb@...02080 {
+      compatible = "sunplus,sp7021-usb-ohci";
+      reg = <0x9c102080 0x68>;
+      clocks = <&clkc 0x3a>;
+      resets = <&rstc 0x2a>;
+      interrupt-parent = <&intc>;
+      interrupts = <15 IRQ_TYPE_LEVEL_HIGH>;
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index f7a9ed7..4c80c39 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -17949,6 +17949,7 @@ SUNPLUS USB OHCI DRIVER
 M:	Vincent Shih <vincent.sunplus@...il.com>
 L:	linux-usb@...r.kernel.org
 S:	Maintained
+F:	Documentation/devicetree/bindings/usb/sunplus,sp7021-usb-ohci.yaml
 F:	drivers/usb/host/ohci-sunplus.c
 
 SUPERH
-- 
2.7.4