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Message-ID: <20231122182351.63214-2-linux.amoon@gmail.com>
Date: Wed, 22 Nov 2023 23:53:46 +0530
From: Anand Moon <linux.amoon@...il.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Icenowy Zheng <uwu@...nowy.me>
Cc: Anand Moon <linux.amoon@...il.com>,
Neil Armstrong <neil.armstrong@...aro.org>,
linux-amlogic@...ts.infradead.org, linux-usb@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v4 1/2] dt-bindings: usb: Add the binding example for the Genesys Logic GL3523 hub
Add the binding example for the USB3.1 Genesys Logic GL3523
integrates with USB 3.1 Gen 1 Super Speed and USB 2.0 High-Speed
hub.
Onboard USB hub supports USB 3.x and USB 2.0 peer controllers.
which has a common reset pin and power supply.
peer-hub phandle each peer controller with proper gpio reset
and help each peer power on during initialization
and power off during suspend.
Signed-off-by: Anand Moon <linux.amoon@...il.com>
---
v4: Fix the description of peer-hub and update the commit message.
Schematics of the Odroid N2+
https://dn.odroid.com/S922X/ODROID-N2/Schematic/odroid-n2_rev0.6_20210121.pdf
V3: fix the dt_binding_check error, added new example for Genesys GL3523
v2: added Genesys GL3523 binding
v1: none
---
.../bindings/usb/genesys,gl850g.yaml | 67 +++++++++++++++++--
1 file changed, 63 insertions(+), 4 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml b/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml
index ee08b9c3721f..bc3b3f4c8473 100644
--- a/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml
+++ b/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml
@@ -9,9 +9,6 @@ title: Genesys Logic USB hub controller
maintainers:
- Icenowy Zheng <uwu@...nowy.me>
-allOf:
- - $ref: usb-device.yaml#
-
properties:
compatible:
enum:
@@ -27,12 +24,48 @@ properties:
vdd-supply:
description:
- the regulator that provides 3.3V core power to the hub.
+ phandle to the regulator that provides power to the hub.
+
+ peer-hub:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ onboard USB hub supports USB 3.x and USB 2.0 peer controllers.
+ which has a common reset pin and power supply.
+ peer-hub phandle each peer controller with proper gpio reset
+ and help each peer power on during initialization
+ and power off during suspend.
required:
- compatible
- reg
+allOf:
+ - $ref: usb-device.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - usb5e3,608
+ then:
+ properties:
+ peer-hub: false
+ vdd-supply: false
+ reset-gpios: true
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - usb5e3,610
+ - usb5e3,620
+ then:
+ properties:
+ peer-hub: true
+ vdd-supply: true
+ reset-gpios: true
+
additionalProperties: false
examples:
@@ -49,3 +82,29 @@ examples:
reset-gpios = <&pio 7 2 GPIO_ACTIVE_LOW>;
};
};
+
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ usb {
+ dr_mode = "host";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* 2.0 hub on port 1 */
+ hub_2_0: hub@1 {
+ compatible = "usb5e3,610";
+ reg = <1>;
+ peer-hub = <&hub_3_0>;
+ reset-gpios = <&gpio 20 GPIO_ACTIVE_LOW>;
+ vdd-supply = <&vcc_5v>;
+ };
+
+ /* 3.1 hub on port 4 */
+ hub_3_0: hub@2 {
+ compatible = "usb5e3,620";
+ reg = <2>;
+ peer-hub = <&hub_2_0>;
+ reset-gpios = <&gpio 20 GPIO_ACTIVE_LOW>;
+ vdd-supply = <&vcc_5v>;
+ };
+ };
--
2.42.0
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