From patchwork Wed Mar 11 19:14:56 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bryan O'Donoghue X-Patchwork-Id: 190019 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8F1D2C2BB1D for ; Wed, 11 Mar 2020 19:16:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7875C2074D for ; Wed, 11 Mar 2020 19:16:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="m5JY+QA/" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731017AbgCKTQQ (ORCPT ); Wed, 11 Mar 2020 15:16:16 -0400 Received: from mail-wr1-f68.google.com ([209.85.221.68]:40866 "EHLO mail-wr1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731179AbgCKTOx (ORCPT ); Wed, 11 Mar 2020 15:14:53 -0400 Received: by mail-wr1-f68.google.com with SMTP id p2so4118027wrw.7 for ; Wed, 11 Mar 2020 12:14:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=vudtvgrawzh2cqBvZiaEVAxNMRavt8ab+X8qR17ohY0=; b=m5JY+QA/QUJA9VTYBe+0CbDg4XmYWs7WE/pYH56q5M0sVsOx8WSbjtjw6nEzvTDKPq H9GZyyKugZofXpVnusJymMXlS2mo+tVqc8AgeCmZi0edjd8NG/BXU+yrMPls8R0kTw9G gs1joCi63VOl6EfNNZXIugNXG7RkCXoxwa9LsPVWWEuu3f915knt0UEVUIndHkw2YXmr /2bci8jq+Bad5Iysp43W6297elcHRaucbhUPRF/kn/sfF/N0NmX0Dx5ZSNYvsBXvZJ4F 7HSRbdhWoBKahanX72G3WsBeGEWrRtVXufLXBm0BXGjrTgTw+92asGOzu+TuRy77EjGX ye1g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=vudtvgrawzh2cqBvZiaEVAxNMRavt8ab+X8qR17ohY0=; b=kcmgAGXirJLe58pdwZRVWsL2AVqlzleJC/WCU8WMYFbBeF0pktQ1aPBFidzplxgUaR iSFvITyHt+t5KCpLoODxbtUe59+lINzqq67YdtIg9KpiwNnf4SNrUC0MJZ9gBYPL7DpW G1+pWy0IubNDV1GIr6wNYWw7pQn/MU9Xov620jIwkjQJQfshPoE9jxpKpRHURQwNo8Sg iIDbIWtkmR9RhbBbnnrrDLDp1R4+IhDKe2vmqGwZWtz7mi4KigHorroS6EbQkOulhq9L opyca4+YPaaqRyYeac1RFErdbM2Y7LnauKqgrEQDnkSmuXZjGVw5erxeTovBSAgwG/PB EvOA== X-Gm-Message-State: ANhLgQ2V3PS99LHxFGLvUhbNXxHVAk7CKLXBCjyENJCGm/buN6bjYF+7 zVz2N25W9G4wUHTINMR9BttuNg== X-Google-Smtp-Source: ADFU+vu3rbsfGj5lv53zHTIxxCknP10LPZkBsCQj1xgQ/tIOnVushQXhnqSggkti1tXNRngLDmpjiQ== X-Received: by 2002:adf:d081:: with SMTP id y1mr5604944wrh.50.1583954090994; Wed, 11 Mar 2020 12:14:50 -0700 (PDT) Received: from localhost.localdomain ([176.61.57.127]) by smtp.gmail.com with ESMTPSA id n24sm32958496wra.61.2020.03.11.12.14.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Mar 2020 12:14:50 -0700 (PDT) From: Bryan O'Donoghue To: balbi@kernel.org, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, bjorn.andersson@linaro.org, jackp@codeaurora.org, robh@kernel.org, Bryan O'Donoghue , Rob Herring , Mark Rutland , devicetree@vger.kernel.org Subject: [PATCH 2/7] dt-bindings: usb: dwc3: Add a gpio-usb-connector example Date: Wed, 11 Mar 2020 19:14:56 +0000 Message-Id: <20200311191501.8165-3-bryan.odonoghue@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200311191501.8165-1-bryan.odonoghue@linaro.org> References: <20200311191501.8165-1-bryan.odonoghue@linaro.org> MIME-Version: 1.0 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org A USB connector should be a child node of the USB controller connector/usb-connector.txt. This patch adds an example of how to do this to the dwc3 binding descriptions. It is necessary to declare a connector as a child-node of a USB controller for role-switching to work, so this example should be helpful to others implementing that. Cc: Greg Kroah-Hartman Cc: Rob Herring Cc: Mark Rutland Cc: linux-usb@vger.kernel.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Acked-by: Felipe Balbi Reviewed-by: Rob Herring Tested-by: Bjorn Andersson Signed-off-by: Bryan O'Donoghue --- Documentation/devicetree/bindings/usb/dwc3.txt | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt index 66780a47ad85..4e1e4afccee6 100644 --- a/Documentation/devicetree/bindings/usb/dwc3.txt +++ b/Documentation/devicetree/bindings/usb/dwc3.txt @@ -121,4 +121,12 @@ dwc3@4a030000 { interrupts = <0 92 4> usb-phy = <&usb2_phy>, <&usb3,phy>; snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; + + usb_con: connector { + compatible = "gpio-usb-b-connector"; + id-gpios = <&tlmm 116 GPIO_ACTIVE_HIGH>; + vbus-supply = <&usb3_vbus_reg>; + pinctrl-names = "default"; + pinctrl-0 = <&usb3_id_pin>, <&usb3_vbus_pin>; + }; }; From patchwork Wed Mar 11 19:14:57 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bryan O'Donoghue X-Patchwork-Id: 190025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 13F6DC5ACC0 for ; Wed, 11 Mar 2020 19:14:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E06FB20736 for ; Wed, 11 Mar 2020 19:14:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="mnjRTfrF" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731167AbgCKTOy (ORCPT ); Wed, 11 Mar 2020 15:14:54 -0400 Received: from mail-wr1-f65.google.com ([209.85.221.65]:33453 "EHLO mail-wr1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731178AbgCKTOx (ORCPT ); Wed, 11 Mar 2020 15:14:53 -0400 Received: by mail-wr1-f65.google.com with SMTP id a25so4146660wrd.0 for ; Wed, 11 Mar 2020 12:14:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=EP/oH4zqbp3AqvHIFfhBXfjQsrypYgAxPnkJM5h0EXA=; b=mnjRTfrFKXrgSmmDyMpTT1knIhywFdH3nQ0K9bHVjWaXedtctrC30bU7oMlBypGKDd ZlhBhan0QpqYE3fwCNSNDY/GKvqO5Lf0QLWHb8weEF8AbvBlmNeiZe4kKtYoETk1pluk yxcB7k+zBT6xJMCa/RQu5fnBney9MTI5CuexMEcWRZQVXYToPsR0AavAXnRUqGj9EobQ WvlN9px2jY8HqjL+pCfvZNYmmIC3iPZSY77m0Hrd6WkB1iQ8ntJsVSbI3KRmuL7ILHbJ rMrhDsxa14FrddcjTTEl94uPBH8AOBbdbgjAYMDNxfbvHjaP/7sXYvdAlCr+M+7DHVPm VDAw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=EP/oH4zqbp3AqvHIFfhBXfjQsrypYgAxPnkJM5h0EXA=; b=uBKzZdcVCzYQspj6GeTrQ3T4HZDlA3gOePod8iWYkB2ZbGqK9/nCkpWWZtMcTBOC+4 Ho8BtuHkbCvHXreVJs21EpcX0ldTOVYRZdPN80SEriC/0+exShoMFqZLAufLJFk3X1f1 gWODb9vLuEIn8U7Ca0woDzTzv2OKo4I6wmuYXm27/H328z6ctzrvIWjJP4fYLafs3V/2 iRC0yrYlPFJxG5N/3diHkog8v9+uejrSbDugk2gGr7wUlXk6wDwB6Jft+pjQRDZHYbDg wOWKaxTz5KkTCqXkn17YAXiSC+xFnYeNquYxPajzX2D0N2p0zcjkdTmyV7N+9ltnhxUy iPCg== X-Gm-Message-State: ANhLgQ3eKfv+yPVN6GtjTcCmS6lg+t/53NOJ8FUZN6KToKVdDJt0pdDt xwXpmalq3u+z4C7La32A9TGN3Q== X-Google-Smtp-Source: ADFU+vvZZNNbrj9lHkj7uMdtgUqUryM0PZKcnEiE6Yq6HjxAiYc3ION8wz0ZgVmL0Y1Q44j1wxDk8w== X-Received: by 2002:adf:fad0:: with SMTP id a16mr5756694wrs.119.1583954092042; Wed, 11 Mar 2020 12:14:52 -0700 (PDT) Received: from localhost.localdomain ([176.61.57.127]) by smtp.gmail.com with ESMTPSA id n24sm32958496wra.61.2020.03.11.12.14.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Mar 2020 12:14:51 -0700 (PDT) From: Bryan O'Donoghue To: balbi@kernel.org, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, bjorn.andersson@linaro.org, jackp@codeaurora.org, robh@kernel.org, Bryan O'Donoghue Subject: [PATCH 3/7] dt-bindings: usb: dwc3: Add a usb-role-switch to the example Date: Wed, 11 Mar 2020 19:14:57 +0000 Message-Id: <20200311191501.8165-4-bryan.odonoghue@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200311191501.8165-1-bryan.odonoghue@linaro.org> References: <20200311191501.8165-1-bryan.odonoghue@linaro.org> MIME-Version: 1.0 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org This patch adds usb-role-switch to the example dwc3 given in the file. Documentation/devicetree/bindings/usb/generic.txt makes this a valid declaration for dwc3 this patch gives an example of how to use it. Reviewed-by: Rob Herring Tested-by: Bjorn Andersson Signed-off-by: Bryan O'Donoghue --- Documentation/devicetree/bindings/usb/dwc3.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt index 4e1e4afccee6..8c6c7b355356 100644 --- a/Documentation/devicetree/bindings/usb/dwc3.txt +++ b/Documentation/devicetree/bindings/usb/dwc3.txt @@ -121,6 +121,7 @@ dwc3@4a030000 { interrupts = <0 92 4> usb-phy = <&usb2_phy>, <&usb3,phy>; snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; + usb-role-switch; usb_con: connector { compatible = "gpio-usb-b-connector"; From patchwork Wed Mar 11 19:15:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bryan O'Donoghue X-Patchwork-Id: 190024 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7CF2FC0044D for ; Wed, 11 Mar 2020 19:14:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5CAF220737 for ; Wed, 11 Mar 2020 19:15:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="lmDi33sf" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731218AbgCKTO6 (ORCPT ); Wed, 11 Mar 2020 15:14:58 -0400 Received: from mail-wm1-f68.google.com ([209.85.128.68]:40341 "EHLO mail-wm1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731202AbgCKTO5 (ORCPT ); Wed, 11 Mar 2020 15:14:57 -0400 Received: by mail-wm1-f68.google.com with SMTP id e26so3381659wme.5 for ; Wed, 11 Mar 2020 12:14:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=KqQ/iZ6acHWZPAsba1wMPoMpaq5MjC2qoVJ8NSKI8L8=; b=lmDi33sfyV2lemto8JmDdDcxVVlGb8yGDuHRCaRPUq/zqOKfIjYh902Z2pQMCid9+W cFEx3O3r0u3Dx3+jp1YZYEqPAin0p0LZfaZg8UgZME3kk3jyKtyCnVyHsdKvOKys2zdR E6cSVcNuGeaQcdqjBgUYGAM83/hrW+1jXvOp9cJYX5dNynb7VyAwTHWp0AFba6wcrPkw IzR9ZhGO5yryG7phjjEcUi1N/J0QbdgoxLwDC7tlqTGfZCy7+Zff2FUil5oJhXz/kgqa 43Vt5ghZJrQJiIZVQAVZN3SukMpx24dTiOoUjMIo47/2Gc0SbGDtlx38kSXIW5q5KegA pjKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=KqQ/iZ6acHWZPAsba1wMPoMpaq5MjC2qoVJ8NSKI8L8=; b=o0aOMf/WQm2iYmXtvVKzZ7G9TUxSOvwwAfRQSuzoC9QSI0miLVm7WY78NlaAdycZla qHF6MmQSL0NZ0GUENJ1rLtBfcum/If4eOZdwlnxh5gnAJzFuWq1BkYlvmDy5Jr/sXX/v gytINz876sa7lAS/62yQIcUvMcUcy9hh+zCzIlh/k9y9n2CcLtKkQlLqxdil8U3TGhjZ fuxUhY/SdsW0Ju1G38Ijglq8w8cHoeXdrvDpqxdoUNB5cKzxOQQVi4JAYuELn6u6AFOD bmlJ+Kqq6B5zVatALKSpM30c/xWIXsmEwFprkHCIWcy1gnTDboZ+apSYVo6GS5qVuL2h +uLg== X-Gm-Message-State: ANhLgQ1+fUquJSs/wPr3QRaHHXOe89mMjx2t8iONLa4zCfYYfTW6kN0J MfW4SC/CBTKBwdeIrO33O4Q9gQ== X-Google-Smtp-Source: ADFU+vv5yioG/fvOMHKjmJf0DJLZbsaNh8WOn0Q5e9U7tmu4Mgr2zIiaOVjLo3TO7YwNUgDOQ9aTNA== X-Received: by 2002:a7b:cb12:: with SMTP id u18mr199688wmj.153.1583954095797; Wed, 11 Mar 2020 12:14:55 -0700 (PDT) Received: from localhost.localdomain ([176.61.57.127]) by smtp.gmail.com with ESMTPSA id n24sm32958496wra.61.2020.03.11.12.14.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Mar 2020 12:14:55 -0700 (PDT) From: Bryan O'Donoghue To: balbi@kernel.org, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, bjorn.andersson@linaro.org, jackp@codeaurora.org, robh@kernel.org, Bryan O'Donoghue , Andy Gross , Lee Jones , Philipp Zabel Subject: [PATCH 6/7] usb: dwc3: Add support for a role-switch notifier Date: Wed, 11 Mar 2020 19:15:00 +0000 Message-Id: <20200311191501.8165-7-bryan.odonoghue@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200311191501.8165-1-bryan.odonoghue@linaro.org> References: <20200311191501.8165-1-bryan.odonoghue@linaro.org> MIME-Version: 1.0 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Role-switching is a 1:1 mapping between a producer and a consumer. For DWC3 we have some vendor specific wrappers, notably the qcom wrapper that want to toggle some PHY related bits on a USB role switch. This patch adds a role-switch notifier to the dwc3 drd code. When the USB role-switch set() routine runs, the notifier will fire passing the notified mode to the consumer, thus allowing vendor specific fix-ups to toggle from the role-switching events. Cc: Andy Gross Cc: Bjorn Andersson Cc: Lee Jones Cc: Felipe Balbi Cc: Greg Kroah-Hartman Cc: Philipp Zabel Cc: Jack Pham Cc: linux-arm-msm@vger.kernel.org Cc: linux-usb@vger.kernel.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Jack Pham Tested-by: Bjorn Andersson Signed-off-by: Bryan O'Donoghue --- drivers/usb/dwc3/core.h | 19 +++++++++++++++++++ drivers/usb/dwc3/drd.c | 17 +++++++++++++++++ 2 files changed, 36 insertions(+) diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index a99e57636172..c2e85f587674 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -955,6 +955,7 @@ struct dwc3_scratchpad_array { * - USBPHY_INTERFACE_MODE_UTMI * - USBPHY_INTERFACE_MODE_UTMIW * @role_sw: usb_role_switch handle + * @role_sw_nl: role switch notifier list * @usb2_phy: pointer to USB2 PHY * @usb3_phy: pointer to USB3 PHY * @usb2_generic_phy: pointer to USB2 PHY @@ -1089,6 +1090,7 @@ struct dwc3 { struct notifier_block edev_nb; enum usb_phy_interface hsphy_mode; struct usb_role_switch *role_sw; + struct raw_notifier_head role_sw_nl; u32 fladj; u32 irq_gadget; @@ -1499,4 +1501,21 @@ static inline void dwc3_ulpi_exit(struct dwc3 *dwc) { } #endif +#if IS_ENABLED(CONFIG_USB_ROLE_SWITCH) +int dwc3_role_switch_notifier_register(struct dwc3 *dwc, + struct notifier_block *nb); +int dwc3_role_switch_notifier_unregister(struct dwc3 *dwc, + struct notifier_block *nb); +#else +static inline int +dwc3_role_switch_notifier_register(struct dwc3 *dwc, + struct notifier_block *nb) +{ return 0; } + +static inline int +dwc3_role_switch_notifier_unregister(struct dwc3 *dwc, + struct notifier_block *nb) +{ return 0; } +#endif + #endif /* __DRIVERS_USB_DWC3_CORE_H */ diff --git a/drivers/usb/dwc3/drd.c b/drivers/usb/dwc3/drd.c index 2705871ec95e..789e93dd93b4 100644 --- a/drivers/usb/dwc3/drd.c +++ b/drivers/usb/dwc3/drd.c @@ -497,6 +497,8 @@ static int dwc3_usb_role_switch_set(struct usb_role_switch *sw, enum usb_role ro } dwc3_set_mode(dwc, mode); + raw_notifier_call_chain(&dwc->role_sw_nl, mode, NULL); + return 0; } @@ -560,6 +562,18 @@ static int dwc3_register_gpio_usb_connector(struct dwc3 *dwc) return ret; } +int dwc3_role_switch_notifier_register(struct dwc3 *dwc, + struct notifier_block *nb) +{ + return raw_notifier_chain_register(&dwc->role_sw_nl, nb); +} + +int dwc3_role_switch_notifier_unregister(struct dwc3 *dwc, + struct notifier_block *nb) +{ + return raw_notifier_chain_unregister(&dwc->role_sw_nl, nb); +} + #else #define ROLE_SWITCH 0 #define dwc3_setup_role_switch(x) 0 @@ -582,6 +596,9 @@ int dwc3_drd_init(struct dwc3 *dwc) ret = dwc3_register_gpio_usb_connector(dwc); if (ret < 0) return ret; + + RAW_INIT_NOTIFIER_HEAD(&dwc->role_sw_nl); + } else if (dwc->edev) { dwc->edev_nb.notifier_call = dwc3_drd_notifier; ret = extcon_register_notifier(dwc->edev, EXTCON_USB_HOST, From patchwork Wed Mar 11 19:15:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bryan O'Donoghue X-Patchwork-Id: 190020 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 99818C0044D for ; Wed, 11 Mar 2020 19:16:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 80BD820736 for ; Wed, 11 Mar 2020 19:16:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="r1el2Upd" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731214AbgCKTQH (ORCPT ); Wed, 11 Mar 2020 15:16:07 -0400 Received: from mail-wm1-f66.google.com ([209.85.128.66]:55332 "EHLO mail-wm1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731209AbgCKTO6 (ORCPT ); Wed, 11 Mar 2020 15:14:58 -0400 Received: by mail-wm1-f66.google.com with SMTP id 6so3340519wmi.5 for ; Wed, 11 Mar 2020 12:14:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=z91zScAZZwulAyvz3u3tr6aLJzcsPLOyuebpL+WCLno=; b=r1el2UpdttKCVTo/Phr0FTb83h+6MEFUdXPmm4p8xDLISKy4paWoEmm8CM7JMi90MX 8LmMTuCQvO7Bq9oSq0GPGpRj7JeM8uxk+4wRo09oNwhWKNpLuVxC/N4EmGzhLposlCVC A0OFwe+GJjE7LhizNca0Sia0ncEtfYZGL0ZSZYFOdefk0lZvc6Fx0i6remRMGo2mKeB+ Kk/SCvJ9V2RAZOPZcpnztzT/rXtQ299Jd3KoUHROGDLGVshjqKEoXcnu/8fI5JOXwt2O Vc3DUO2PvWYHTPnkt9tJeOvPu0mbrhaj6WoOC0y+sJ/wULALRa+X/uSC+r6pfBo8MIRU SuvQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=z91zScAZZwulAyvz3u3tr6aLJzcsPLOyuebpL+WCLno=; b=pM/NUFar6F4j41ilkDBQM+1yMk6TddvyfDl9bosZh4YOVxSH36zXnI+dou7mfwXd1y wEzURhweYDCfwTiTcZ2c0z2exrvf3FiFeu9H+6WYe3rcihvHuLVuy7+XdKJ3/w9NIGF3 WKjD3NYATEq9mn5CK+rz0KDTQJUmFEMHRweiHhQK1a0BsVMXqza1A1yBjyzGlpz35soG xUFfvb7koKBdpDE97S8RgHIlVL3/tgQ6NjlibLo8NmAdjnnfG2HQadYwchPa4KyPr0nn eylvl8l8z5A4lOO10cIr981Q5f9ROOJjQKIcwB13M32GerLZQr8igfqKdmctBu2QaLKm 9z/A== X-Gm-Message-State: ANhLgQ2G3on9kKxoE5Rkk/eMY5ebFCyope9kc5WwPOAybF/AY5OYJ2rx ncdeItpkZBgeA15a+4MWDCFp/g== X-Google-Smtp-Source: ADFU+vvuhvgtiuMVWq5U8ezUlV4NbLmjf0dUAE8V/9qJPXi4TIiZ/VIBKWQAmz5mjTginjpk5wI9ag== X-Received: by 2002:a1c:2747:: with SMTP id n68mr254288wmn.14.1583954096913; Wed, 11 Mar 2020 12:14:56 -0700 (PDT) Received: from localhost.localdomain ([176.61.57.127]) by smtp.gmail.com with ESMTPSA id n24sm32958496wra.61.2020.03.11.12.14.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Mar 2020 12:14:56 -0700 (PDT) From: Bryan O'Donoghue To: balbi@kernel.org, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, bjorn.andersson@linaro.org, jackp@codeaurora.org, robh@kernel.org, Bryan O'Donoghue , Andy Gross , Lee Jones , Philipp Zabel Subject: [PATCH 7/7] usb: dwc3: qcom: Enable gpio-usb-conn based role-switching Date: Wed, 11 Mar 2020 19:15:01 +0000 Message-Id: <20200311191501.8165-8-bryan.odonoghue@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200311191501.8165-1-bryan.odonoghue@linaro.org> References: <20200311191501.8165-1-bryan.odonoghue@linaro.org> MIME-Version: 1.0 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org This patch adds the ability to receive a notification from the DRD code for role-switch events and in doing so it introduces a disjunction between gpio-usb-conn or extcon mode. This is what we want to do, since the two methods are mutually exclusive. Cc: Andy Gross Cc: Bjorn Andersson Cc: Lee Jones Cc: Felipe Balbi Cc: Greg Kroah-Hartman Cc: Philipp Zabel Cc: Jack Pham Cc: linux-arm-msm@vger.kernel.org Cc: linux-usb@vger.kernel.org Cc: linux-kernel@vger.kernel.org Tested-by: Bjorn Andersson Signed-off-by: Bryan O'Donoghue --- drivers/usb/dwc3/dwc3-qcom.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index 6f4b2b3cffce..f6a7ede5953e 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -571,6 +571,7 @@ static int dwc3_qcom_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct dwc3_qcom *qcom; struct resource *res, *parent_res = NULL; + struct dwc3 *dwc; int ret, i; bool ignore_pipe_clk; @@ -669,8 +670,16 @@ static int dwc3_qcom_probe(struct platform_device *pdev) if (qcom->mode == USB_DR_MODE_PERIPHERAL) dwc3_qcom_vbus_overrride_enable(qcom, true); - /* register extcon to override sw_vbus on Vbus change later */ - ret = dwc3_qcom_register_extcon(qcom); + if (dwc3_qcom_find_gpio_usb_connector(qcom->dwc3)) { + /* Using gpio-usb-conn register a notifier for VBUS */ + dwc = platform_get_drvdata(qcom->dwc3); + qcom->vbus_nb.notifier_call = dwc3_qcom_vbus_notifier; + ret = dwc3_role_switch_notifier_register(dwc, &qcom->vbus_nb); + } else { + /* register extcon to override sw_vbus on Vbus change later */ + ret = dwc3_qcom_register_extcon(qcom); + } + if (ret) goto depopulate; @@ -702,8 +711,11 @@ static int dwc3_qcom_remove(struct platform_device *pdev) { struct dwc3_qcom *qcom = platform_get_drvdata(pdev); struct device *dev = &pdev->dev; + struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3); int i; + dwc3_role_switch_notifier_unregister(dwc, &qcom->vbus_nb); + of_platform_depopulate(dev); for (i = qcom->num_clocks - 1; i >= 0; i--) {