linux-kernel - [PATCH v6 06/19] dt-bindings: usb: Add generic "usb-phy" property

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Message-ID: <20201210090944.16283-7-Sergey.Semin@baikalelectronics.ru>
Date:   Thu, 10 Dec 2020 12:09:30 +0300
From:   Serge Semin <Sergey.Semin@...kalelectronics.ru>
To:     Mathias Nyman <mathias.nyman@...el.com>,
        Felipe Balbi <balbi@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>
CC:     Serge Semin <Sergey.Semin@...kalelectronics.ru>,
        Serge Semin <fancer.lancer@...il.com>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Pavel Parkhomenko <Pavel.Parkhomenko@...kalelectronics.ru>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Manu Gautam <mgautam@...eaurora.org>,
        Roger Quadros <rogerq@...com>,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@...el.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-snps-arc@...ts.infradead.org>, <linux-mips@...r.kernel.org>,
        <linuxppc-dev@...ts.ozlabs.org>, <linux-usb@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Rob Herring <robh@...nel.org>
Subject: [PATCH v6 06/19] dt-bindings: usb: Add generic "usb-phy" property

Even though the Generic PHY framework is the more preferable way of
setting the USB PHY up, there are still many dts-files and DT bindings
which rely on having the legacy "usb-phy" specified to attach particular
USB PHYs to USB cores. Let's have the "usb-phy" property described in
the generic USB HCD binding file so it would be validated against the
nodes in which it's specified. Mark the property as deprecated to
discourage the developers from using it.

Signed-off-by: Serge Semin <Sergey.Semin@...kalelectronics.ru>
Acked-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Reviewed-by: Rob Herring <robh@...nel.org>

---

Changelog v2:
- Discard '|' from the property description, since we don't need to
  preserve the text formatting.

Changelog v4:
- Move the "usb-phy" property definition into the usb.yaml schema where
  all generic USB properties are now defined.
---
 Documentation/devicetree/bindings/usb/usb.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/usb.yaml b/Documentation/devicetree/bindings/usb/usb.yaml
index 53144c4600c0..ebe7f4275c59 100644
--- a/Documentation/devicetree/bindings/usb/usb.yaml
+++ b/Documentation/devicetree/bindings/usb/usb.yaml
@@ -24,6 +24,13 @@ properties:
     description:
       Name specifier for the USB PHY
 
+  usb-phy:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description:
+      List of all the USB PHYs on this HCD to be accepted by the legacy USB
+      Physical Layer subsystem.
+    deprecated: true
+
   phy_type:
     description:
       Tells USB controllers that we want to configure the core to support a
-- 
2.29.2