From patchwork Fri Oct 9 08:28:40 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 269198 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=-12.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, 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 32E5AC433E7 for ; Fri, 9 Oct 2020 08:29:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E384C22251 for ; Fri, 9 Oct 2020 08:29:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="kpRDS3b0" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732807AbgJII3C (ORCPT ); Fri, 9 Oct 2020 04:29:02 -0400 Received: from z5.mailgun.us ([104.130.96.5]:64698 "EHLO z5.mailgun.us" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732778AbgJII24 (ORCPT ); Fri, 9 Oct 2020 04:28:56 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1602232136; h=Content-Transfer-Encoding: MIME-Version: References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=3OGkE5T/mqe2LhK7mSuuihEmVBB2lO/Hejwh/04yGvY=; b=kpRDS3b00A7nBUUT3mlvyc7EzLYtqtFhz7FC4yyBkY3vzG4XUHb10joYE1PGxnijg6FIlePY L2XV1GILiyWpg/L6BzYxSs0p7RLHSCiZHj0WyGIGofPnG+qBfcexZk/kgYNVO9ViOaDIIuQS eX0KIXGqA8jetSgaOm8ETubbO3M= X-Mailgun-Sending-Ip: 104.130.96.5 X-Mailgun-Sid: WyIxZTE2YSIsICJsaW51eC11c2JAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n03.prod.us-east-1.postgun.com with SMTP id 5f801f41aad2c3cd1c58215d (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Fri, 09 Oct 2020 08:28:49 GMT Sender: wcheng=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id DFD62C43385; Fri, 9 Oct 2020 08:28:48 +0000 (UTC) Received: from wcheng-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: wcheng) by smtp.codeaurora.org (Postfix) with ESMTPSA id 8F1D1C43382; Fri, 9 Oct 2020 08:28:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 8F1D1C43382 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=wcheng@codeaurora.org From: Wesley Cheng To: vkoul@kernel.org, agross@kernel.org, bjorn.andersson@linaro.org, kishon@ti.com, balbi@kernel.org, gregkh@linuxfoundation.org, robh+dt@kernel.org Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, jackp@codeaurora.org, Wesley Cheng Subject: [PATCH v2 1/4] arm64: boot: dts: qcom: sm8150: Add nodes for PMIC based typec detection Date: Fri, 9 Oct 2020 01:28:40 -0700 Message-Id: <20201009082843.28503-2-wcheng@codeaurora.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20201009082843.28503-1-wcheng@codeaurora.org> References: <20201009082843.28503-1-wcheng@codeaurora.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Introduce required child nodes to enable the PMIC based USB type C driver. This consits of connector and endpoint nodes to drivers, which manage the type C mux and the USB role switch. Signed-off-by: Wesley Cheng --- arch/arm64/boot/dts/qcom/sm8150-mtp.dts | 40 ++++++++++++++++++++++++- 1 file changed, 39 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/sm8150-mtp.dts b/arch/arm64/boot/dts/qcom/sm8150-mtp.dts index ba3b5b802954..06ad01dde080 100644 --- a/arch/arm64/boot/dts/qcom/sm8150-mtp.dts +++ b/arch/arm64/boot/dts/qcom/sm8150-mtp.dts @@ -413,6 +413,31 @@ &pm8150b_vbus { status = "okay"; }; +&pm8150b_typec { + status = "okay"; + connector { + compatible = "usb-c-connector"; + power-role = "dual"; + data-role = "dual"; + ports { + #address-cells = <1>; + #size-cells = <0>; + port@1 { + reg = <1>; + usb3_data_ss: endpoint@0 { + remote-endpoint = <&qmp_ss_mux>; + }; + }; + }; + }; + + port { + usb3_role: endpoint { + remote-endpoint = <&dwc3_drd_switch>; + }; + }; +}; + &usb_1_hsphy { status = "okay"; vdda-pll-supply = <&vdd_usb_hs_core>; @@ -424,12 +449,25 @@ &usb_1_qmpphy { status = "okay"; vdda-phy-supply = <&vreg_l3c_1p2>; vdda-pll-supply = <&vdda_usb_ss_dp_core_1>; + orientation-switch; + port { + qmp_ss_mux: endpoint@0 { + remote-endpoint = <&usb3_data_ss>; + }; + }; }; &usb_1 { status = "okay"; + usb-role-switch; + port { + dwc3_drd_switch: endpoint@0 { + remote-endpoint = <&usb3_role>; + }; + }; }; &usb_1_dwc3 { - dr_mode = "peripheral"; + dr_mode = "otg"; + usb-role-switch; }; From patchwork Fri Oct 9 08:28:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 268738 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=-12.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, 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 187B1C433DF for ; Fri, 9 Oct 2020 08:29:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ACA8122251 for ; Fri, 9 Oct 2020 08:29:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="BR1UfVXc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732797AbgJII27 (ORCPT ); Fri, 9 Oct 2020 04:28:59 -0400 Received: from m42-4.mailgun.net ([69.72.42.4]:51401 "EHLO m42-4.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732438AbgJII2w (ORCPT ); Fri, 9 Oct 2020 04:28:52 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1602232131; h=Content-Transfer-Encoding: MIME-Version: References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=g13fmLH5MWoCaZ2CBH1tKm0KPDV4tSk0QYM43fNfZuY=; b=BR1UfVXctwa/juy0za/4xR/xQbXx0MlOyhvUdf6SQYVUCvhiIZYHe04ygFvi+UvJJ7BmJIqj SZDBHEhzBdH4SSojkyWdU14aVeDn2sqh53vjB2JZQaB7lVzRxpqDbKgIro7imLu62Nvk8jBJ jRSch2a8rGO/6UQEPzVnXr9j+fo= X-Mailgun-Sending-Ip: 69.72.42.4 X-Mailgun-Sid: WyIxZTE2YSIsICJsaW51eC11c2JAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n04.prod.us-east-1.postgun.com with SMTP id 5f801f42588858a3048e69d9 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Fri, 09 Oct 2020 08:28:50 GMT Sender: wcheng=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 8C88EC433AD; Fri, 9 Oct 2020 08:28:49 +0000 (UTC) Received: from wcheng-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: wcheng) by smtp.codeaurora.org (Postfix) with ESMTPSA id 70BC0C433A0; Fri, 9 Oct 2020 08:28:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 70BC0C433A0 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=wcheng@codeaurora.org From: Wesley Cheng To: vkoul@kernel.org, agross@kernel.org, bjorn.andersson@linaro.org, kishon@ti.com, balbi@kernel.org, gregkh@linuxfoundation.org, robh+dt@kernel.org Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, jackp@codeaurora.org, Wesley Cheng Subject: [PATCH v2 2/4] phy: qcom-qmp: Register as a typec switch for orientation detection Date: Fri, 9 Oct 2020 01:28:41 -0700 Message-Id: <20201009082843.28503-3-wcheng@codeaurora.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20201009082843.28503-1-wcheng@codeaurora.org> References: <20201009082843.28503-1-wcheng@codeaurora.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The lane select switch for USB typec orientation is within the USB QMP PHY. the current device. It could be connected through an endpoint, to an independent device handling the typec detection, ie the QCOM SPMI typec driver. Signed-off-by: Wesley Cheng --- drivers/phy/qualcomm/Kconfig | 11 +++++ drivers/phy/qualcomm/phy-qcom-qmp.c | 70 +++++++++++++++++++++++++++-- 2 files changed, 78 insertions(+), 3 deletions(-) diff --git a/drivers/phy/qualcomm/Kconfig b/drivers/phy/qualcomm/Kconfig index 928db510b86c..43f46a1b3db1 100644 --- a/drivers/phy/qualcomm/Kconfig +++ b/drivers/phy/qualcomm/Kconfig @@ -48,6 +48,17 @@ config PHY_QCOM_QMP Enable this to support the QMP PHY transceiver that is used with controllers such as PCIe, UFS, and USB on Qualcomm chips. +if PHY_QCOM_QMP +config PHY_QCOM_QMP_TYPEC + bool "Enable QCOM QMP PHY Type C Switch Support" + depends on PHY_QCOM_QMP=y && TYPEC=y || PHY_QCOM_QMP=m && TYPEC + help + Register a type C switch from the QMP PHY driver for type C + orientation support. This has dependencies with if the type C kernel + configuration is enabled or not. This support will not be present if + USB type C is disabled. +endif + config PHY_QCOM_QUSB2 tristate "Qualcomm QUSB2 PHY Driver" depends on OF && (ARCH_QCOM || COMPILE_TEST) diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c index 562053ce9455..29d8a3570328 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp.c @@ -19,6 +19,7 @@ #include #include #include +#include #include @@ -66,6 +67,9 @@ /* QPHY_V3_PCS_MISC_CLAMP_ENABLE register bits */ #define CLAMP_EN BIT(0) /* enables i/o clamp_n */ +#define SW_PORTSELECT_VAL BIT(0) +#define SW_PORTSELECT_MUX BIT(1) + #define PHY_INIT_COMPLETE_TIMEOUT 10000 #define POWER_DOWN_DELAY_US_MIN 10 #define POWER_DOWN_DELAY_US_MAX 11 @@ -1845,6 +1849,8 @@ struct qmp_phy { * @phy_initialized: indicate if PHY has been initialized * @mode: current PHY mode * @ufs_reset: optional UFS PHY reset handle + * @sw: typec switch for receiving orientation changes + * @orientation: carries current CC orientation */ struct qcom_qmp { struct device *dev; @@ -1864,6 +1870,8 @@ struct qcom_qmp { enum phy_mode mode; struct reset_control *ufs_reset; + struct typec_switch *sw; + enum typec_orientation orientation; }; static inline void qphy_setbits(void __iomem *base, u32 offset, u32 val) @@ -2485,6 +2493,7 @@ static int qcom_qmp_phy_com_init(struct qmp_phy *qphy) void __iomem *pcs = qphy->pcs; void __iomem *dp_com = qmp->dp_com; int ret, i; + unsigned int val; mutex_lock(&qmp->phy_mutex); if (qmp->init_count++) { @@ -2534,6 +2543,13 @@ static int qcom_qmp_phy_com_init(struct qmp_phy *qphy) qphy_setbits(dp_com, QPHY_V3_DP_COM_PHY_MODE_CTRL, USB3_MODE | DP_MODE); + if (cfg->is_dual_lane_phy) { + val = SW_PORTSELECT_MUX; + if (qmp->orientation == TYPEC_ORIENTATION_REVERSE) + val |= SW_PORTSELECT_VAL; + qphy_setbits(dp_com, QPHY_V3_DP_COM_TYPEC_CTRL, val); + } + /* bring both QMP USB and QMP DP PHYs PCS block out of reset */ qphy_clrbits(dp_com, QPHY_V3_DP_COM_RESET_OVRD_CTRL, SW_DPPHY_RESET_MUX | SW_DPPHY_RESET | @@ -2559,7 +2575,7 @@ static int qcom_qmp_phy_com_init(struct qmp_phy *qphy) if (cfg->has_phy_com_ctrl) { void __iomem *status; - unsigned int mask, val; + unsigned int mask; qphy_clrbits(serdes, cfg->regs[QPHY_COM_SW_RESET], SW_RESET); qphy_setbits(serdes, cfg->regs[QPHY_COM_START_CONTROL], @@ -3242,6 +3258,47 @@ static const struct dev_pm_ops qcom_qmp_phy_pm_ops = { qcom_qmp_phy_runtime_resume, NULL) }; +#if IS_ENABLED(CONFIG_PHY_QCOM_QMP_TYPEC) +static int qcom_qmp_phy_typec_switch_set(struct typec_switch *sw, + enum typec_orientation orientation) +{ + struct qcom_qmp *qmp = typec_switch_get_drvdata(sw); + struct qmp_phy *qphy = qmp->phys[0]; + + qmp->orientation = orientation; + if (qmp->phy_initialized) { + qcom_qmp_phy_disable(qphy->phy); + qcom_qmp_phy_enable(qphy->phy); + } + + return 0; +} + +static int qcom_qmp_phy_typec_switch_register(struct qcom_qmp *qmp) +{ + struct typec_switch_desc sw_desc; + struct device *dev = qmp->dev; + + if (qmp->cfg->is_dual_lane_phy) { + sw_desc.drvdata = qmp; + sw_desc.fwnode = dev->fwnode; + sw_desc.set = qcom_qmp_phy_typec_switch_set; + qmp->sw = typec_switch_register(dev, &sw_desc); + if (IS_ERR(qmp->sw)) { + dev_err(dev, "Error registering typec switch: %ld\n", + PTR_ERR(qmp->sw)); + } + } + + return 0; +} +#else +static int qcom_qmp_phy_typec_switch_register(struct qcom_qmp *qmp) +{ + return 0; +} +#endif + static int qcom_qmp_phy_probe(struct platform_device *pdev) { struct qcom_qmp *qmp; @@ -3250,7 +3307,7 @@ static int qcom_qmp_phy_probe(struct platform_device *pdev) struct device_node *child; struct phy_provider *phy_provider; void __iomem *base; - int num, id; + int num = 0, id; int ret; qmp = devm_kzalloc(dev, sizeof(*qmp), GFP_KERNEL); @@ -3302,7 +3359,11 @@ static int qcom_qmp_phy_probe(struct platform_device *pdev) return ret; } - num = of_get_available_child_count(dev->of_node); + qcom_qmp_phy_typec_switch_register(qmp); + for_each_available_child_of_node(dev->of_node, child) { + if (!strncmp("lanes", child->name, 5)) + num++; + } /* do we have a rogue child node ? */ if (num > qmp->cfg->nlanes) return -EINVAL; @@ -3322,6 +3383,9 @@ static int qcom_qmp_phy_probe(struct platform_device *pdev) for_each_available_child_of_node(dev->of_node, child) { /* Create per-lane phy */ + if (strncmp("lanes", child->name, 5)) + continue; + ret = qcom_qmp_phy_create(dev, child, id); if (ret) { dev_err(dev, "failed to create lane%d phy, %d\n", From patchwork Fri Oct 9 08:28:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 269199 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=-12.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 4CE01C433DF for ; Fri, 9 Oct 2020 08:28:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D9F1822251 for ; Fri, 9 Oct 2020 08:28:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="iknENUPg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732779AbgJII2x (ORCPT ); Fri, 9 Oct 2020 04:28:53 -0400 Received: from z5.mailgun.us ([104.130.96.5]:64698 "EHLO z5.mailgun.us" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732507AbgJII2w (ORCPT ); Fri, 9 Oct 2020 04:28:52 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1602232131; h=Content-Transfer-Encoding: MIME-Version: References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=Tlq4T/iAuD/awcC5v4dNjmM0vVkqaQtyhvxY9GC4/4Q=; b=iknENUPgyOs1FsDcLfIC7O0GbnB0n2oIV+OoHm/HHC0p1Xh8kBDyjEOQGGXhJpRtXYUx7Cr/ tXkGob+Yn1+beTwA9H2SEuetJ+dRnvUqTqap7RKYRxy4xPYn7Gu/Or2uUPW5WiqKVOmyeOBV S/aAxJpBllV5UVb1zAPvQtyNoMY= X-Mailgun-Sending-Ip: 104.130.96.5 X-Mailgun-Sid: WyIxZTE2YSIsICJsaW51eC11c2JAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n04.prod.us-east-1.postgun.com with SMTP id 5f801f433711fec7b1bd7b6f (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Fri, 09 Oct 2020 08:28:51 GMT Sender: wcheng=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 833A8C433CB; Fri, 9 Oct 2020 08:28:50 +0000 (UTC) Received: from wcheng-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: wcheng) by smtp.codeaurora.org (Postfix) with ESMTPSA id 40FB7C433AF; Fri, 9 Oct 2020 08:28:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 40FB7C433AF Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=wcheng@codeaurora.org From: Wesley Cheng To: vkoul@kernel.org, agross@kernel.org, bjorn.andersson@linaro.org, kishon@ti.com, balbi@kernel.org, gregkh@linuxfoundation.org, robh+dt@kernel.org Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, jackp@codeaurora.org, Wesley Cheng Subject: [PATCH v2 3/4] usb: dwc3: dwc3-qcom: Find USB connector and register role switch Date: Fri, 9 Oct 2020 01:28:42 -0700 Message-Id: <20201009082843.28503-4-wcheng@codeaurora.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20201009082843.28503-1-wcheng@codeaurora.org> References: <20201009082843.28503-1-wcheng@codeaurora.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org If registering a USB typeC connector, the connector node may not be a child of the DWC3 QCOM device. Utilize devcon graph search to lookup if any remote endpoints contain the connector. If a connector is present, the DWC3 QCOM will register a USB role switch to receive role change events, as well as attain a reference to the DWC3 core role switch to pass the event down. Signed-off-by: Wesley Cheng --- drivers/usb/dwc3/dwc3-qcom.c | 120 ++++++++++++++++++++++++++++++++++- 1 file changed, 118 insertions(+), 2 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index e1e78e9824b1..340760ef0e01 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -19,6 +19,8 @@ #include #include #include +#include +#include #include "core.h" @@ -71,6 +73,9 @@ struct dwc3_qcom { struct notifier_block vbus_nb; struct notifier_block host_nb; + struct usb_role_switch *role_sw; + struct usb_role_switch *dwc3_drd_sw; + const struct dwc3_acpi_pdata *acpi_pdata; enum usb_dr_mode mode; @@ -190,6 +195,73 @@ static int dwc3_qcom_register_extcon(struct dwc3_qcom *qcom) return 0; } +static int dwc3_qcom_usb_role_switch_set(struct usb_role_switch *sw, + enum usb_role role) +{ + struct dwc3_qcom *qcom = usb_role_switch_get_drvdata(sw); + struct fwnode_handle *child; + bool enable = false; + + if (!qcom->dwc3_drd_sw) { + child = device_get_next_child_node(qcom->dev, NULL); + if (child) { + qcom->dwc3_drd_sw = usb_role_switch_find_by_fwnode(child); + fwnode_handle_put(child); + if (IS_ERR(qcom->dwc3_drd_sw)) { + qcom->dwc3_drd_sw = NULL; + return 0; + } + } + } + + usb_role_switch_set_role(qcom->dwc3_drd_sw, role); + + if (role == USB_ROLE_DEVICE) + enable = true; + else + enable = false; + + qcom->mode = (role == USB_ROLE_HOST) ? USB_DR_MODE_HOST : + USB_DR_MODE_PERIPHERAL; + dwc3_qcom_vbus_overrride_enable(qcom, enable); + return 0; +} + +static enum usb_role dwc3_qcom_usb_role_switch_get(struct usb_role_switch *sw) +{ + struct dwc3_qcom *qcom = usb_role_switch_get_drvdata(sw); + enum usb_role role; + + switch (qcom->mode) { + case USB_DR_MODE_HOST: + role = USB_ROLE_HOST; + break; + case USB_DR_MODE_PERIPHERAL: + role = USB_ROLE_DEVICE; + break; + default: + role = USB_ROLE_DEVICE; + break; + } + + return role; +} + +static int dwc3_qcom_setup_role_switch(struct dwc3_qcom *qcom) +{ + struct usb_role_switch_desc dwc3_role_switch = {NULL}; + + dwc3_role_switch.fwnode = dev_fwnode(qcom->dev); + dwc3_role_switch.set = dwc3_qcom_usb_role_switch_set; + dwc3_role_switch.get = dwc3_qcom_usb_role_switch_get; + dwc3_role_switch.driver_data = qcom; + qcom->role_sw = usb_role_switch_register(qcom->dev, &dwc3_role_switch); + if (IS_ERR(qcom->role_sw)) + return PTR_ERR(qcom->role_sw); + + return 0; +} + static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom) { if (qcom->hs_phy_irq) { @@ -540,6 +612,42 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) return 0; } +static int dwc3_qcom_connector_check(struct fwnode_handle *fwnode) +{ + if (fwnode && (!fwnode_property_match_string(fwnode, "compatible", + "gpio-usb-b-connector") || + !fwnode_property_match_string(fwnode, "compatible", + "usb-c-connector"))) + return 1; + + return 0; +} + +static void *dwc3_qcom_find_usb_connector_match(struct device_connection *con, + int ep, void *data) +{ + struct fwnode_handle *fwnode; + + /* Check if the "connector" node is the parent of the remote endpoint */ + if (dwc3_qcom_connector_check(con->fwnode)) + return fwnode; + + /* else, check if it is a child node */ + fwnode = fwnode_get_named_child_node(con->fwnode, "connector"); + if (dwc3_qcom_connector_check(fwnode)) + return fwnode; + + return 0; +} + +static bool dwc3_qcom_find_usb_connector(struct platform_device *pdev) +{ + struct fwnode_handle *fwnode = pdev->dev.fwnode; + + return fwnode_connection_find_match(fwnode, "connector", NULL, + dwc3_qcom_find_usb_connector_match); +} + static int dwc3_qcom_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; @@ -644,8 +752,13 @@ 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_usb_connector(pdev)) { + ret = dwc3_qcom_setup_role_switch(qcom); + } else { + /* register extcon to override sw_vbus on Vbus change later */ + ret = dwc3_qcom_register_extcon(qcom); + } + if (ret) goto depopulate; @@ -679,6 +792,9 @@ static int dwc3_qcom_remove(struct platform_device *pdev) struct device *dev = &pdev->dev; int i; + usb_role_switch_unregister(qcom->role_sw); + usb_role_switch_put(qcom->dwc3_drd_sw); + of_platform_depopulate(dev); for (i = qcom->num_clocks - 1; i >= 0; i--) { From patchwork Fri Oct 9 08:28:43 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 268737 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=-12.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, 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 6B282C4363D for ; Fri, 9 Oct 2020 08:29:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 146FC22251 for ; Fri, 9 Oct 2020 08:29:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="TmsgU4YR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732838AbgJII3J (ORCPT ); Fri, 9 Oct 2020 04:29:09 -0400 Received: from z5.mailgun.us ([104.130.96.5]:64698 "EHLO z5.mailgun.us" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732801AbgJII3F (ORCPT ); Fri, 9 Oct 2020 04:29:05 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1602232145; h=Content-Transfer-Encoding: MIME-Version: References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=kONjvJS0RvHBNA3ckVrjHd8i1nrVYQN5I4UTud+UJyg=; b=TmsgU4YRnOkEmw8zaEfOdikR3ii/9siOjYICx111LgwoY55RFH+tQu/zm1b1XeIl1p794xTL 0rIg14W+n/yfgdNVg88rt6zJ+gGmmHtoDeczY22MAnIvSGuC404/vFTok+WbB+FXTSqjMyaf KnkAxMRoMlspbeLhxdRxlGQaUCA= X-Mailgun-Sending-Ip: 104.130.96.5 X-Mailgun-Sid: WyIxZTE2YSIsICJsaW51eC11c2JAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n04.prod.us-west-2.postgun.com with SMTP id 5f801f4306d81bc48da4f908 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Fri, 09 Oct 2020 08:28:51 GMT Sender: wcheng=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 12282C433FF; Fri, 9 Oct 2020 08:28:51 +0000 (UTC) Received: from wcheng-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: wcheng) by smtp.codeaurora.org (Postfix) with ESMTPSA id 1373EC433BA; Fri, 9 Oct 2020 08:28:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 1373EC433BA Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=wcheng@codeaurora.org From: Wesley Cheng To: vkoul@kernel.org, agross@kernel.org, bjorn.andersson@linaro.org, kishon@ti.com, balbi@kernel.org, gregkh@linuxfoundation.org, robh+dt@kernel.org Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, jackp@codeaurora.org, Wesley Cheng Subject: [PATCH v2 4/4] usb: dwc3: dwc3-qcom: Fix typo in the dwc3 vbus override API Date: Fri, 9 Oct 2020 01:28:43 -0700 Message-Id: <20201009082843.28503-5-wcheng@codeaurora.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20201009082843.28503-1-wcheng@codeaurora.org> References: <20201009082843.28503-1-wcheng@codeaurora.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org There was an extra character in the dwc3_qcom_vbus_override_enable() function. Removed the extra character. Signed-off-by: Wesley Cheng --- drivers/usb/dwc3/dwc3-qcom.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index 340760ef0e01..236afbfe01d9 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -107,7 +107,7 @@ static inline void dwc3_qcom_clrbits(void __iomem *base, u32 offset, u32 val) readl(base + offset); } -static void dwc3_qcom_vbus_overrride_enable(struct dwc3_qcom *qcom, bool enable) +static void dwc3_qcom_vbus_override_enable(struct dwc3_qcom *qcom, bool enable) { if (enable) { dwc3_qcom_setbits(qcom->qscratch_base, QSCRATCH_SS_PHY_CTRL, @@ -128,7 +128,7 @@ static int dwc3_qcom_vbus_notifier(struct notifier_block *nb, struct dwc3_qcom *qcom = container_of(nb, struct dwc3_qcom, vbus_nb); /* enable vbus override for device mode */ - dwc3_qcom_vbus_overrride_enable(qcom, event); + dwc3_qcom_vbus_override_enable(qcom, event); qcom->mode = event ? USB_DR_MODE_PERIPHERAL : USB_DR_MODE_HOST; return NOTIFY_DONE; @@ -140,7 +140,7 @@ static int dwc3_qcom_host_notifier(struct notifier_block *nb, struct dwc3_qcom *qcom = container_of(nb, struct dwc3_qcom, host_nb); /* disable vbus override in host mode */ - dwc3_qcom_vbus_overrride_enable(qcom, !event); + dwc3_qcom_vbus_override_enable(qcom, !event); qcom->mode = event ? USB_DR_MODE_HOST : USB_DR_MODE_PERIPHERAL; return NOTIFY_DONE; @@ -223,7 +223,7 @@ static int dwc3_qcom_usb_role_switch_set(struct usb_role_switch *sw, qcom->mode = (role == USB_ROLE_HOST) ? USB_DR_MODE_HOST : USB_DR_MODE_PERIPHERAL; - dwc3_qcom_vbus_overrride_enable(qcom, enable); + dwc3_qcom_vbus_override_enable(qcom, enable); return 0; } @@ -750,7 +750,7 @@ static int dwc3_qcom_probe(struct platform_device *pdev) /* enable vbus override for device mode */ if (qcom->mode == USB_DR_MODE_PERIPHERAL) - dwc3_qcom_vbus_overrride_enable(qcom, true); + dwc3_qcom_vbus_override_enable(qcom, true); if (dwc3_qcom_find_usb_connector(pdev)) { ret = dwc3_qcom_setup_role_switch(qcom);