From patchwork Wed Apr 6 13:52:10 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aswath Govindraju X-Patchwork-Id: 12803782 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B8D1AC433EF for ; Wed, 6 Apr 2022 16:31:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237842AbiDFQde (ORCPT ); Wed, 6 Apr 2022 12:33:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35114 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238336AbiDFQc5 (ORCPT ); Wed, 6 Apr 2022 12:32:57 -0400 Received: from lelv0143.ext.ti.com (lelv0143.ext.ti.com [198.47.23.248]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2D73A1C1E7F; Wed, 6 Apr 2022 06:52:35 -0700 (PDT) Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 236DqQmJ073045; Wed, 6 Apr 2022 08:52:26 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1649253146; bh=ZlZPerePjjnbj3qgnIGG7yS3FTWwbY7C2WJBkoXBy6M=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=La0pqumwT0j2FA5QBZGRs5ikic5wng09DaA3KWGUc0N5GzCiB7nm59TYt8JSTZkGO trzjCNPx2KX3SmRUuqW2e+5VG5F+nqjYMf7B1ac3IRS0B4KkKlrNk0zIXov0nzBffq VGijLZApk9wZTM3CfOtZg8wzDeTdmLSwZ9Hh8j8o= Received: from DFLE110.ent.ti.com (dfle110.ent.ti.com [10.64.6.31]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 236DqQdo089793 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 6 Apr 2022 08:52:26 -0500 Received: from DFLE112.ent.ti.com (10.64.6.33) by DFLE110.ent.ti.com (10.64.6.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Wed, 6 Apr 2022 08:52:26 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE112.ent.ti.com (10.64.6.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14 via Frontend Transport; Wed, 6 Apr 2022 08:52:26 -0500 Received: from gsaswath-HP-ProBook-640-G5.dal.design.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 236DqFso079424; Wed, 6 Apr 2022 08:52:23 -0500 From: Aswath Govindraju CC: Vignesh Raghavendra , Kishon Vijay Abraham I , Aswath Govindraju , Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Felipe Balbi , , , Subject: [PATCH v3 1/2] dt-bindings: usb: Add documentation for AM62 USB Wrapper module Date: Wed, 6 Apr 2022 19:22:10 +0530 Message-ID: <20220406135214.6989-2-a-govindraju@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220406135214.6989-1-a-govindraju@ti.com> References: <20220406135214.6989-1-a-govindraju@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Add bindings for the TI's AM62 wrapper module for the Synopsys USBSS-DRD controller. Signed-off-by: Aswath Govindraju Reviewed-by: Krzysztof Kozlowski Reviewed-by: Roger Quadros --- changes since v2: - Removed the implementation of detecting the role from the wrapper driver and moved the implementation to using linux,extcon-usb-gpio driver for role detection. - Updated the binding documentation and example to reflect the same. .../devicetree/bindings/usb/ti,am62-usb.yaml | 115 ++++++++++++++++++ 1 file changed, 115 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..59b5ccea5671 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/ti,am62-usb.yaml @@ -0,0 +1,115 @@ +# 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 + +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 + + 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 + #include + #include + + extcon_usb1: extcon-usb1 { + id-gpios = <&main_gpio1 51 GPIO_ACTIVE_HIGH>; + }; + + bus { + #address-cells = <2>; + #size-cells = <2>; + + usbss1: usb@f910000 { + compatible = "ti,am62-usb"; + reg = <0x00 0x0f910000 0x00 0x800>; + interrupts = ; /* 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>; + #address-cells = <2>; + #size-cells = <2>; + + usb@31100000 { + compatible = "snps,dwc3"; + reg =<0x00 0x31100000 0x00 0x50000>; + interrupts = , /* irq.0 */ + ; /* irq.0 */ + interrupt-names = "host", "peripheral"; + maximum-speed = "high-speed"; + extcon = <&extcon_usb1>; + dr_mode = "otg"; + }; + }; + };