From: Aswath Govindraju <a-govindraju@ti.com>
To: unlisted-recipients:; (no To-header on input)
Cc: <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-usb@vger.kernel.org>, Felipe Balbi <balbi@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Roger Quadros <rogerq@kernel.org>,
Vignesh Raghavendra <vigneshr@ti.com>,
Kishon Vijay Abraham I <kishon@ti.com>,
Aswath Govindraju <a-govindraju@ti.com>
Subject: [PATCH v2 1/2] dt-bindings: usb: Add documentation for AM62 USB Wrapper module
Date: Thu, 24 Mar 2022 13:04:24 +0530 [thread overview]
Message-ID: <20220324073425.18607-2-a-govindraju@ti.com> (raw)
In-Reply-To: <20220324073425.18607-1-a-govindraju@ti.com>
Add bindings for the TI's AM62 wrapper module for the Synopsys USBSS-DRD
controller.
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---
Changes since v1:
- made correction in grammer of clocks property description
and added maxItems in the interrupts property based on comments
received from Roger
- corrected the title, fixed the description of
ti,syscon-phy-pll-refclk, added pattern properties and child node
in the example based on the comments from Krzysztof.
.../devicetree/bindings/usb/ti,am62-usb.yaml | 117 ++++++++++++++++++
1 file changed, 117 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/ti,am62-usb.yaml
diff --git a/Documentation/devicetree/bindings/usb/ti,am62-usb.yaml b/Documentation/devicetree/bindings/usb/ti,am62-usb.yaml
new file mode 100644
index 000000000000..452bfdc6fb09
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ti,am62-usb.yaml
@@ -0,0 +1,117 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/ti,am62-usb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI's AM62 wrapper module for the Synopsys USBSS-DRD controller
+
+maintainers:
+ - Aswath Govindraju <a-govindraju@ti.com>
+
+properties:
+ compatible:
+ const: ti,am62-usb
+
+ reg:
+ maxItems: 1
+
+ ranges: true
+
+ power-domains:
+ description:
+ PM domain provider node and an args specifier containing
+ the USB ISO device id value. See,
+ Documentation/devicetree/bindings/soc/ti/sci-pm-domain.yaml
+ maxItems: 1
+
+ clocks:
+ description: Clock phandle to usb2_refclk
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: ref
+
+ id-gpio:
+ description:
+ GPIO to be used as ID pin
+ maxItems: 1
+
+ interrupts:
+ description:
+ interrupt line to be used for detecting changes in VBUS
+ maxItems: 1
+
+ ti,vbus-divider:
+ description:
+ Should be present if USB VBUS line is connected to the
+ VBUS pin of the SoC via a 1/3 voltage divider.
+ type: boolean
+
+ ti,syscon-phy-pll-refclk:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ items:
+ - items:
+ - description: Phandle to the SYSCON entry
+ - description: USB phy control register offset within SYSCON
+ description:
+ Specifier for conveying frequency of ref clock input, for the
+ operation of USB2PHY.
+
+ '#address-cells':
+ const: 2
+
+ '#size-cells':
+ const: 2
+
+patternProperties:
+ "^usb@[0-9a-f]+$":
+ $ref: snps,dwc3.yaml#
+ description: Required child node
+
+required:
+ - compatible
+ - reg
+ - power-domains
+ - clocks
+ - clock-names
+ - interrupts
+ - ti,syscon-phy-pll-refclk
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/soc/ti,sci_pm_domain.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/gpio/gpio.h>
+
+ bus {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ usbss1: usb@f910000 {
+ compatible = "ti,am62-usb";
+ reg = <0x00 0x0f910000 0x00 0x800>;
+ interrupts = <GIC_SPI 234 IRQ_TYPE_LEVEL_HIGH>; /* MISC IRQ */
+ clocks = <&k3_clks 162 3>;
+ clock-names = "ref";
+ ti,syscon-phy-pll-refclk = <&wkup_conf 0x4018>;
+ power-domains = <&k3_pds 179 TI_SCI_PD_EXCLUSIVE>;
+ id-gpio = <&main_gpio1 51 GPIO_ACTIVE_LOW>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ usb@31100000 {
+ compatible = "snps,dwc3";
+ reg =<0x00 0x31100000 0x00 0x50000>;
+ interrupts = <GIC_SPI 226 IRQ_TYPE_LEVEL_HIGH>, /* irq.0 */
+ <GIC_SPI 226 IRQ_TYPE_LEVEL_HIGH>; /* irq.0 */
+ interrupt-names = "host", "peripheral";
+ maximum-speed = "high-speed";
+ extcon = <&usbss1>;
+ dr_mode = "otg";
+ };
+ };
+ };
--
2.17.1
next prev parent reply other threads:[~2022-03-24 7:34 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-24 7:34 [PATCH v2 0/2] AM62: Add support for AM62 USB wrapper driver Aswath Govindraju
2022-03-24 7:34 ` Aswath Govindraju [this message]
2022-03-24 11:07 ` [PATCH v2 1/2] dt-bindings: usb: Add documentation for AM62 USB Wrapper module Krzysztof Kozlowski
2022-03-24 11:40 ` Aswath Govindraju
2022-03-24 11:53 ` Krzysztof Kozlowski
2022-04-01 0:20 ` Rob Herring
2022-04-01 5:04 ` Aswath Govindraju
2022-04-01 7:49 ` Krzysztof Kozlowski
2022-04-01 8:05 ` Aswath Govindraju
2022-03-24 7:34 ` [PATCH v2 2/2] drivers: usb: dwc3: Add AM62 USB wrapper driver Aswath Govindraju
2022-04-07 5:32 ` [PATCH v2 0/2] AM62: Add support for " Aswath Govindraju
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