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Received: from AM6PR04MB4838.eurprd04.prod.outlook.com (2603:10a6:20b:4::16) by DB8PR04MB6892.eurprd04.prod.outlook.com (2603:10a6:10:113::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6363.32; Mon, 8 May 2023 13:18:10 +0000 Received: from AM6PR04MB4838.eurprd04.prod.outlook.com ([fe80::bcdd:75c9:176c:39ed]) by AM6PR04MB4838.eurprd04.prod.outlook.com ([fe80::bcdd:75c9:176c:39ed%4]) with mapi id 15.20.6363.032; Mon, 8 May 2023 13:18:10 +0000 From: Frank Li To: vkoul@kernel.org, kishon@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, imx@lists.linux.dev, fushi.peng@nxp.com Subject: [PATCH v2 1/2] phy: cadence: salvo: Add usb2-disconnect-threshold-microvolt property Date: Mon, 8 May 2023 09:17:46 -0400 Message-Id: <20230508131747.1933886-1-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 X-ClientProxiedBy: BYAPR07CA0052.namprd07.prod.outlook.com (2603:10b6:a03:60::29) To AM6PR04MB4838.eurprd04.prod.outlook.com (2603:10a6:20b:4::16) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM6PR04MB4838:EE_|DB8PR04MB6892:EE_ X-MS-Office365-Filtering-Correlation-Id: 2ba762ac-4cfa-478e-9dc2-08db4fc6ab59 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Signed-off-by: Frank Li --- Change from v1 to v2: - remove empty change before #include - Remove dts change from patch drivers/phy/cadence/phy-cadence-salvo.c | 29 +++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/drivers/phy/cadence/phy-cadence-salvo.c b/drivers/phy/cadence/phy-cadence-salvo.c index 23be27a747a9..b325333e539f 100644 --- a/drivers/phy/cadence/phy-cadence-salvo.c +++ b/drivers/phy/cadence/phy-cadence-salvo.c @@ -6,6 +6,7 @@ * Copyright (c) 2019-2020 NXP */ +#include #include #include #include @@ -91,9 +92,19 @@ /* USB2 PHY register definition */ #define UTMI_REG15 0xaf +#define UTMI_AFE_RX_REG0 0x0d #define UTMI_AFE_RX_REG5 0x12 #define UTMI_AFE_BC_REG4 0x29 +/* Align UTMI_AFE_RX_REG0 bit[7:6] define */ +enum usb2_disconn_threshold { + USB2_DISCONN_THRESHOLD_575 = 0x0, + USB2_DISCONN_THRESHOLD_610 = 0x1, + USB2_DISCONN_THRESHOLD_645 = 0x3, +}; + +#define RX_USB2_DISCONN_MASK GENMASK(7, 6) + /* TB_ADDR_TX_RCVDETSC_CTRL */ #define RXDET_IN_P3_32KHZ BIT(0) /* @@ -125,6 +136,7 @@ struct cdns_salvo_phy { struct clk *clk; void __iomem *base; struct cdns_salvo_data *data; + enum usb2_disconn_threshold usb2_disconn; }; static const struct of_device_id cdns_salvo_phy_of_match[]; @@ -261,6 +273,12 @@ static int cdns_salvo_phy_init(struct phy *phy) cdns_salvo_write(salvo_phy, USB2_PHY_OFFSET, UTMI_AFE_RX_REG5, 0x5); + + value = cdns_salvo_read(salvo_phy, USB2_PHY_OFFSET, UTMI_AFE_RX_REG0); + value &= ~RX_USB2_DISCONN_MASK; + value = FIELD_PREP(RX_USB2_DISCONN_MASK, salvo_phy->usb2_disconn); + cdns_salvo_write(salvo_phy, USB2_PHY_OFFSET, UTMI_AFE_RX_REG0, value); + udelay(10); clk_disable_unprepare(salvo_phy->clk); @@ -315,6 +333,7 @@ static int cdns_salvo_phy_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct cdns_salvo_phy *salvo_phy; struct cdns_salvo_data *data; + u32 val; data = (struct cdns_salvo_data *)of_device_get_match_data(dev); salvo_phy = devm_kzalloc(dev, sizeof(*salvo_phy), GFP_KERNEL); @@ -326,6 +345,16 @@ static int cdns_salvo_phy_probe(struct platform_device *pdev) if (IS_ERR(salvo_phy->clk)) return PTR_ERR(salvo_phy->clk); + if (of_property_read_u32(dev->of_node, "usb2-disconnect-threshold-microvolt", &val)) + val = 575; + + if (val < 610) + salvo_phy->usb2_disconn = USB2_DISCONN_THRESHOLD_575; + else if (val < 645) + salvo_phy->usb2_disconn = USB2_DISCONN_THRESHOLD_610; + else + salvo_phy->usb2_disconn = USB2_DISCONN_THRESHOLD_645; + salvo_phy->base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(salvo_phy->base)) return PTR_ERR(salvo_phy->base); From patchwork Mon May 8 13:17:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Li X-Patchwork-Id: 91151 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b0ea:0:b0:3b6:4342:cba0 with SMTP id b10csp2164163vqo; Mon, 8 May 2023 06:39:19 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ4urrtmuKjnbKtyv/dU83P2FJa6bHSTRR49yFRRDYTv/pMBfRodeENy1jFf8ROqpWdTAP71 X-Received: by 2002:a17:90a:f2d7:b0:247:2dc4:91d5 with SMTP id gt23-20020a17090af2d700b002472dc491d5mr10588734pjb.0.1683553158936; Mon, 08 May 2023 06:39:18 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1683553158; cv=pass; d=google.com; s=arc-20160816; b=sLzoG5yc/OXKcE7A5bNimVGQ15CtYJuRk1EKkH+H+McK7wSgwspa12zCKVll6KsGnL eJ8+4kuX+19vfO7C0/Hpp732xPUEcgAJDSWl8gyXv9MWK9bp+oIWJWCqDNxohLhQOMNQ opkmXC+PILi/XXqYM/41XiGUP9PsHYZgk0q1QBcMGSQktRoGpQkyip4A/3PaqAxUp0Rw C0HiX8JoMbGR8cPCd9ZBFHgPb/MppE/jOw7XUl30Y92L0wFAcBR4MqS2vZqstfFx9aED xxqfR63SmIy6X7Tmb+FobNIRD9pklROm+VDQXz9CgmDHcdrNzILmUElX4WCuzKt1kcCn WXQQ== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:content-transfer-encoding :references:in-reply-to:message-id:date:subject:to:from :dkim-signature; bh=Ve8uVCO7yTDGr6aID0sOvdTi5YPE9IjrS94brBUROs8=; b=E5Gy8/cl8F8KPFKDTQO5vUfvO4giW790cS1jQ2GrLfgkb7FS14GHeDOEdTviSB6XwH a0CksHrIqcjVVwW21okJfJsulJon2we4B4955eSEanAvm8gtkcbLXIF/n8SQ1btVnq89 7RztGetazAOK3HiNMiIq2U98FEzauRmz3fcvekaI++j7oj3zNlmZ79HX5GW5mKxzReJV NQWwIfCTP20iNRs6fp39rJW0zXm5Rcm95QtAPnh/XteWJn1qEDC0BLw0xOkaKbwSF5dz 0aq+dG1n1ssmfjI2OXzQBL9e3MdDt+2vVU2NpAKDYgHOvDQ9mVCJEtO7D5QeIlzxNRPn yOYw== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@nxp.com header.s=selector2 header.b=f0szHZng; arc=pass (i=1 spf=pass spfdomain=nxp.com dkim=pass dkdomain=nxp.com dmarc=pass fromdomain=nxp.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=nxp.com Received: from out1.vger.email (out1.vger.email. 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Received: from AM6PR04MB4838.eurprd04.prod.outlook.com (2603:10a6:20b:4::16) by DB8PR04MB6892.eurprd04.prod.outlook.com (2603:10a6:10:113::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6363.32; Mon, 8 May 2023 13:18:13 +0000 Received: from AM6PR04MB4838.eurprd04.prod.outlook.com ([fe80::bcdd:75c9:176c:39ed]) by AM6PR04MB4838.eurprd04.prod.outlook.com ([fe80::bcdd:75c9:176c:39ed%4]) with mapi id 15.20.6363.032; Mon, 8 May 2023 13:18:13 +0000 From: Frank Li To: vkoul@kernel.org, kishon@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, imx@lists.linux.dev, fushi.peng@nxp.com Subject: [PATCH v2 2/2] dt-bindings: phy: cdns,salvo: add property usb2-disconnect-threshold-microvolt Date: Mon, 8 May 2023 09:17:47 -0400 Message-Id: <20230508131747.1933886-2-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230508131747.1933886-1-Frank.Li@nxp.com> References: <20230508131747.1933886-1-Frank.Li@nxp.com> X-ClientProxiedBy: BYAPR07CA0052.namprd07.prod.outlook.com (2603:10b6:a03:60::29) To AM6PR04MB4838.eurprd04.prod.outlook.com (2603:10a6:20b:4::16) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM6PR04MB4838:EE_|DB8PR04MB6892:EE_ X-MS-Office365-Filtering-Correlation-Id: 07c85937-997b-4aff-1b50-08db4fc6ad47 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Signed-off-by: Frank Li --- Change from v1 to V2: - fixed subject - fixed dt-binding-check warning Documentation/devicetree/bindings/phy/cdns,salvo-phy.yaml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/phy/cdns,salvo-phy.yaml b/Documentation/devicetree/bindings/phy/cdns,salvo-phy.yaml index 3a07285b5470..be415b0a6d8b 100644 --- a/Documentation/devicetree/bindings/phy/cdns,salvo-phy.yaml +++ b/Documentation/devicetree/bindings/phy/cdns,salvo-phy.yaml @@ -31,6 +31,12 @@ properties: "#phy-cells": const: 0 + usb2-disconnect-threshold-microvolt: + description: The microvolt threshold value utilized for detecting + USB disconnection event. + enum: [575, 610, 645] + default: 575 + required: - compatible - reg