From: Harsh Agarwal <quic_harshq@quicinc.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Felipe Balbi <balbi@kernel.org>
Cc: <linux-usb@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <quic_pkondeti@quicinc.com>,
<quic_ppratap@quicinc.com>,
Harsh Agarwal <quic_harshq@quicinc.com>
Subject: [RFC 1/2] dt-bindings: usb: dwc3: Add support for multiport related properties
Date: Thu, 19 May 2022 18:04:54 +0530 [thread overview]
Message-ID: <1652963695-10109-2-git-send-email-quic_harshq@quicinc.com> (raw)
In-Reply-To: <1652963695-10109-1-git-send-email-quic_harshq@quicinc.com>
Added support for multiport, mport, num-ssphy and num-hsphy
properties. These properties are used to support devices having
a multiport controller.
Signed-off-by: Harsh Agarwal <quic_harshq@quicinc.com>
---
.../devicetree/bindings/usb/snps,dwc3.yaml | 55 ++++++++++++++++++++++
1 file changed, 55 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
index f4471f8..39c61483 100644
--- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
@@ -341,6 +341,35 @@ properties:
This port is used with the 'usb-role-switch' property to connect the
dwc3 to type C connector.
+ multiport:
+ description:
+ If a single USB controller supports multiple ports, then it's referred to as
+ a multiport controller. Each port of the multiport controller can support
+ either High Speed or Super Speed or both and have their own PHY phandles. Each
+ port is represented by "mport" node and all the "mport" nodes are grouped
+ together inside the "multiport" node where individual "mport" node defines the
+ PHYs supported by that port.
+ required:
+ - mport
+
+ num-hsphy:
+ description: Total number of HS-PHYs defined by the multiport controller.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ num-ssphy:
+ description: Total number of SS-PHYs defined by the multiport controller.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ mport:
+ description: Each mport node represents one port of the multiport controller.
+ patternProperties: "^mport@[0-9a-f]+$"
+ oneOf:
+ - required:
+ - usb-phy
+ - required:
+ - phys
+ - phy-names
+
unevaluatedProperties: false
required:
@@ -369,4 +398,30 @@ examples:
snps,dis_u2_susphy_quirk;
snps,dis_enblslpm_quirk;
};
+ - |
+ usb@4a000000 {
+ compatible = "snps,dwc3";
+ reg = <0x4a000000 0xcfff>;
+ interrupts = <0 92 4>;
+
+ multiport {
+
+ MP_1: mport@1 {
+ usb-phy = <&usb2_phy0>, <&usb3_phy0>;
+ };
+
+ MP_2: mport@2 {
+ usb-phy = <&usb2_phy1>, <&usb3_phy1>;
+ };
+
+ MP_3: mport@3 {
+ usb-phy = <&usb2_phy2>, <&usb_nop_phy>;
+ };
+
+ MP_4: mport@4 {
+ usb-phy = <&usb2_phy3>, <&usb_nop_phy>;
+ };
+
+ };
+ };
...
--
2.7.4
next prev parent reply other threads:[~2022-05-19 12:35 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-19 12:34 [RFC 0/2] Add support for multiport controller Harsh Agarwal
2022-05-19 12:34 ` Harsh Agarwal [this message]
2022-05-19 19:23 ` [RFC 1/2] dt-bindings: usb: dwc3: Add support for multiport related properties Rob Herring
2022-05-21 3:05 ` Bjorn Andersson
2022-05-23 11:54 ` Harsh Agarwal
2022-05-21 3:28 ` Pavan Kondeti
2022-05-23 12:25 ` Rob Herring
2022-05-27 11:09 ` Harsh Agarwal
2022-05-19 12:34 ` [RFC 2/2] usb: dwc3: Refactor PHY logic to support Multiport Controller Harsh Agarwal
2022-05-21 3:17 ` Bjorn Andersson
2022-05-23 11:53 ` Harsh Agarwal
2022-05-23 2:59 ` Pavan Kondeti
2022-05-23 7:08 ` Pavan Kondeti
2022-05-23 16:10 ` Brian Masney
2022-05-27 10:56 ` Harsh Agarwal
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