From: Piyush Mehta <piyush.mehta@xilinx.com>
To: <gregkh@linuxfoundation.org>, <robh+dt@kernel.org>,
<mka@chromium.org>, <ravisadineni@chromium.org>,
<stern@rowland.harvard.edu>, <alcooperx@gmail.com>,
<michal.simek@xilinx.com>
Cc: <piyush.mehta@xilinx.com>, <linux-usb@vger.kernel.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<git@xilinx.com>, <sgoud@xilinx.com>
Subject: [PATCH V2 1/2] dt-bindings: usb: misc: Add binding for Microchip usb2244 Controller
Date: Mon, 22 Nov 2021 11:58:33 +0530 [thread overview]
Message-ID: <20211122062834.1812005-2-piyush.mehta@xilinx.com> (raw)
In-Reply-To: <20211122062834.1812005-1-piyush.mehta@xilinx.com>
Microchip's USB224x family of Hi-Speed USB 2.0 flash media card controllers
provides an ultra-fast interface between a USB host controller and flash
media cards.
Add dt-bindings documentation for Microchip's usb2244 Controller.
USB224x is a USB 2.0 compliant ultra fast USB 2.0 multi-format,
SD/MMC, and MS Flash Media Controllers.
Signed-off-by: Piyush Mehta <piyush.mehta@xilinx.com>
---
Changes for V2:
- Update reset polarity, make reset ACTIVE LOW in the dt-binding document.
- Added usbsd node under the usb controller (usb0) node.
- Remove Warning: decoded text below may be mangled, UTF-8 assumed.
Review comments:
Link: https://lore.kernel.org/lkml/CAL_JsqKu6vr3iCz1G7MtK6gyqAvn4s4mpuLOwPzJDEmyZeROig@mail.gmail.com/
---
.../devicetree/bindings/usb/microchip,usb2244.yaml | 47 ++++++++++++++++++++++
1 file changed, 47 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/microchip,usb2244.yaml
diff --git a/Documentation/devicetree/bindings/usb/microchip,usb2244.yaml b/Documentation/devicetree/bindings/usb/microchip,usb2244.yaml
new file mode 100644
index 0000000..1854313
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/microchip,usb2244.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/usb/microchip,usb2244.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Bindings for the Microchip USB2244 Ultra Fast USB-SD Controller
+
+description:
+ Microchip USB224x is a USB 2.0 compliant, Hi-Speed bulk only mass
+ storage class peripheral controller intended for reading and writing
+ to popular flash media from the xDPicture Card, Memory Stick (MS),
+ Secure Digital (SD), and MultiMediaCard (MMC) families.
+
+ USB224x is a flash media card reader solution fully compliant with the
+ USB 2.0 specification.
+
+maintainers:
+ - Piyush Mehta <piyush.mehta@xilinx.com>
+
+properties:
+ compatible:
+ const: microchip,usb2244
+
+ reset-gpios:
+ maxItems: 1
+ description:
+ The phandle and specifier for the GPIO that controls the RESET line of
+ flash media controller.
+
+required:
+ - compatible
+ - reset-gpios
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ usb0 {
+ usbsd {
+ compatible = "microchip,usb2244";
+ reset-gpios = <&gpio 2 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+...
--
2.7.4
next prev parent reply other threads:[~2021-11-22 6:29 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-22 6:28 [PATCH V2 0/2] usb: misc: add support for microchip,usb2244 USB-SD controller Piyush Mehta
2021-11-22 6:28 ` Piyush Mehta [this message]
2021-11-30 2:11 ` [PATCH V2 1/2] dt-bindings: usb: misc: Add binding for Microchip usb2244 Controller Rob Herring
2021-11-30 10:23 ` Michal Simek
2021-11-22 6:28 ` [PATCH V2 2/2] usb: misc: usb244: add support for USB2 ultra fast sd controller Piyush Mehta
2021-11-22 7:02 ` Greg KH
2021-11-22 11:02 ` Michal Simek
2021-11-22 11:07 ` Greg KH
2021-11-30 2:14 ` Rob Herring
2021-11-30 10:42 ` Michal Simek
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