target/linux/gemini/patches-4.14/0027-usb-host-add-DT-bindings-for-faraday-fotg2.patch

   1 From 3699f119ff8da021fe7a1759e98e38ca88fa6766 Mon Sep 17 00:00:00 2001
   2 From: Hans Ulli Kroll <ulli.kroll@googlemail.com>
   3 Date: Wed, 8 Feb 2017 21:00:09 +0100
   4 Subject: [PATCH 27/31] usb: host: add DT bindings for faraday fotg2
   5
   6 This adds device tree bindings for the Faraday FOTG2
   7 dual-mode host controller.
   8
   9 Cc: devicetree@vger.kernel.org
  10 Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
  11 Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
  12 ---
  13 ChangeLog v1->v3:
  14 - Change compatible to "faraday,fotg210" as the name of the
  15   hardware block.
  16 - Add an elaborate SoC-specific compatible string for the
  17   Cortina Systems Gemini so that SoC-specific features can
  18   be enabled.
  19 - Add cortina,gemini-mini-b to indicate a Gemini PHY with
  20   a Mini-B adapter connected.
  21 - Indicated that the Gemini version can handle "wakeup-source".
  22 - Add optional IP block clock.
  23 ---
  24  .../devicetree/bindings/usb/faraday,fotg210.txt    | 35 ++++++++++++++++++++++
  25  1 file changed, 35 insertions(+)
  26  create mode 100644 Documentation/devicetree/bindings/usb/faraday,fotg210.txt
  27
  28 --- /dev/null
  29 +++ b/Documentation/devicetree/bindings/usb/faraday,fotg210.txt
  30 @@ -0,0 +1,35 @@
  31 +Faraday FOTG Host controller
  32 +
  33 +This OTG-capable USB host controller is found in Cortina Systems
  34 +Gemini and other SoC products.
  35 +
  36 +Required properties:
  37 +- compatible: should be one of:
  38 +  "faraday,fotg210"
  39 +  "cortina,gemini-usb", "faraday,fotg210"
  40 +- reg: should contain one register range i.e. start and length
  41 +- interrupts: description of the interrupt line
  42 +
  43 +Optional properties:
  44 +- clocks: should contain the IP block clock
  45 +- clock-names: should be "PCLK" for the IP block clock
  46 +
  47 +Required properties for "cortina,gemini-usb" compatible:
  48 +- syscon: a phandle to the system controller to access PHY registers
  49 +
  50 +Optional properties for "cortina,gemini-usb" compatible:
  51 +- cortina,gemini-mini-b: boolean property that indicates that a Mini-B
  52 +  OTH connector is in use
  53 +- wakeup-source: see power/wakeup-source.txt
  54 +
  55 +Example for Gemini:
  56 +
  57 +usb@68000000 {
  58 +       compatible = "cortina,gemini-usb", "faraday,fotg210";
  59 +       reg = <0x68000000 0x1000>;
  60 +       interrupts = <10 IRQ_TYPE_LEVEL_HIGH>;
  61 +       clocks = <&cc 12>;
  62 +       clock-names = "PCLK";
  63 +       syscon = <&syscon>;
  64 +       wakeup-source;
  65 +};